x% of 6 plus y% of 6 can be expressed as x + y = 1.83.
A percentage is a quantity or ratio that is expressed as a fraction of 100. The symbol "%" is used to denote percentage. The percentage is denoted by the abbreviations "pct" or "pc". In other words, the percentage is measured in terms of 100 and is defined as the amount of one quantity that is made up of another.
A finite combination of symbols that are well-formed in accordance with context-dependent principles is referred to as an expression or mathematical expression.
The sum of x% of 6 and y% of 6 is 11%.
Therefore,
x% of 6 + y% of 6 = 11%
x% × 6 + y% × 6 = 11%
\(\frac{x}{100} \times 6 + \frac{y}{100} \times 6 = \frac{11}{100}\)
Taking \(\frac{6}{100}\) common.
\(\frac{6}{100}(x+y)=\frac{11}{100}\)
6( x + y ) = 11
Dividing each side by 6.
\(x + y = \frac{11}{6}\)
x + y = 1.83
Therefore, the equation x + y = 1.83 expresses the statement x% of 6 plus y% of 6.
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How do you find the missing sides of the right triangle.
The right triangle having the hypotenuse has x = 17.88.
What is right triangle?Since a right triangle's three interior angles always add up to 90 degrees and a triangle's three interior angles always add up to 180 degrees, the other two interior angles must also always add up to 90 degrees (they are complementary).
Hypotenuse refers to the side across from the right angle. The legs are the sides extending from the right angle. If applying the Pythagorean Theorem, the hypotenuse or its length is frequently denoted with a lowercase c. A and B are typically used to denote the legs' lengths.
Using trigonometry rule
Cos 33° = 15/x
x = 17.88
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okay this makes 0 sense... Show how you can solve the equation 3x=9 by multiplying each side by the reciprocal of 3... need to be the full steps pls
Answer:
x=3
Step-by-step explanation:
3x=9
Divide both sides by 3 and you get 1x=3 or basically x=3.
So the answer would be x=3.
somebody please help meeeeeeeeee
The value of x is given as follows:
x = 22.
What are similar polygons?Similar polygons are polygons that share these two features presented as follows:
Congruent angle measures.Proportional side lengths.The two triangles in this problem are similar, hence the proportional relationship for the side lengths is given as follows:
x/18 = 11/9
9x = 11 x 18
x = 11 x 2
x = 22.
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If you are asked to rotate 270° counterclockwise that's the same as rotating what other angle of rotation and direction?
Answer:
90° clockwise
Step-by-step explanation:
90 degrees clockwise
when you rotate counterclockwise 270 degrees, (x,y) maps to (y,-x)
Hope this helps :-)
Whitus v. Georgia In the classic legal case of Whitus v. Georgia, a jury pool of 90 people was supposed to be randomly selected from a population in which 27% were minorities. Among the 90 people selected, 7 were minorities. Find the probability of getting 7 or fewer minorities if the jury pool was randomly selected. Is the result of 7 m
Answer:
0.000004 = 0.0004% probability of getting 7 or fewer minorities if the jury pool was randomly selected.
Step-by-step explanation:
For each person, there are only two possible outcomes. Either it was a minority, or it was not. The probability of a person being a minority is independent of any other person. This means that the binomial probability distribution is used to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
\(P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}\)
In which \(C_{n,x}\) is the number of different combinations of x objects from a set of n elements, given by the following formula.
\(C_{n,x} = \frac{n!}{x!(n-x)!}\)
And p is the probability of X happening.
Jury of 90 people:
This means that \(n = 90\)
27% were minorities.
This means that \(p = 0.27\)
Find the probability of getting 7 or fewer minorities if the jury pool was randomly selected.
This is:
\(P(X \leq 7) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4) + P(X = 5) + P(X = 6) + P(X = 7)\)
In which
\(P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}\)
\(P(X = 0) = C_{90,0}.(0.27)^{0}.(0.73)^{90} \approx 0\)
\(P(X = 1) = C_{90,1}.(0.27)^{1}.(0.73)^{89} \approx 0\)
\(P(X = 2) = C_{90,2}.(0.27)^{2}.(0.73)^{88} \approx 0\)
\(P(X = 3) = C_{90,3}.(0.27)^{3}.(0.73)^{87} \approx 0\)
\(P(X = 4) = C_{90,4}.(0.27)^{4}.(0.73)^{86} \approx 0\)
\(P(X = 5) = C_{90,5}.(0.27)^{5}.(0.73)^{85} \approx 0\)
\(P(X = 6) = C_{90,6}.(0.27)^{6}.(0.73)^{84} \approx 0\)
\(P(X = 7) = C_{90,7}.(0.27)^{7}.(0.73)^{83} = 0.000004\)
So
\(P(X \leq 7) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4) + P(X = 5) + P(X = 6) + P(X = 7) = 7*0 + 0.000004\)
0.000004 = 0.0004% probability of getting 7 or fewer minorities if the jury pool was randomly selected.
Use the quadratic formula to find the exact solutions of 3x2 − 6x + 2 = 0.
a. negative 1 plus or minus the square root of 3 divided by 3
b. 1 plus or minus the square root of 3 divided by 3
c. negative 1 plus or minus the square root of 15 divided by 3
d. 1 plus or minus the square root of 15 divided by 3
The exact solutions of the qudratic equation 3x^2 - 6x + 2 = 0 are:
a. negative 1 plus or minus the square root of 3 divided by
3 (x = (-1 ± √3) / 3) .So, option a is the correct answer.
To find the solutions of the quadratic equation 3x^2 - 6x + 2 = 0, we can use the quadratic formula, which states that for an equation of the form ax^2 + bx + c = 0, the solutions are given by:
x = (-b ± √(b^2 - 4ac)) / (2a)
In this case, a = 3, b = -6, and c = 2. Substituting these values into the formula, we have:
x = (-(-6) ± √((-6)^2 - 4(3)(2))) / (2(3))
x = (6 ± √(36 - 24)) / 6
x = (6 ± √12) / 6
x = (6 ± 2√3) / 6
x = (3 ± √3) / 3
Therefore, the exact solutions of the equation 3x^2 - 6x + 2 = 0 are:
a. negative 1 plus or minus the square root of 3 divided by 3 (x = (-1 ± √3) / 3)
So, option a is the correct answer.
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Which of the scenarios below are considered seller-based discounts? options are in the picture
The scenarios that can be considered a seller-based discount are:
A. The offer by Wire and Cable
B. Carfna's Fine Foods
C. Mouser Electronics offer
E. Carchex Car Maintenance
What is a seller-based discount?A seller-based discount is a discount that is offered by a seller for the early purchase of a product. The goal of the seller in this case is to get cash as he or she is in an immediate need for cash.
The most outstanding example is that of Carchex Car Maintenance where an offer is made by the seller for the early purchase of products.
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Please help quick!! The vertices of a rectangle are at (−1, −5), (3, −5), (3, −7), and (−1, −7). What is the length of the shorter side of the rectangle? Enter your answer in the box
Answer:
2
Step-by-step
explanaI guessed to borring for me
Answer: Your answer will be 2
Step-by-step explanation: I did the k12 quiz here's proof
Which of the following statements could be used to describe the location of point P, shown on the number line below?-2OP=-25OPC-1OP-1OP<-2NEXT QUESTIONASK FOR HELPSSC
The description of the location of point P which is shown on the given number line is 1.666 or -5 / 3.
First, let us understand the least count used for scaling;
The least count of an instrument is the smallest measurement that can be taken accurately with it. For example, if a scale has 10 divisions between the marks 1 and 2, then its least count is 1/10 = 0.1 or it can measure up to the value 0.1 accurately.
For the given number line the division between -2 and -1 is 3.
So, the least count or each division will represent -1 / 3.
From the scratch (or 0), P is the fifth division, so;
P = (- 1/3) * 5
P = - 5/3
or
P = - 1.6666...
Thus, the description of the location of point P which is shown on the given number line is 1.666 or -5 / 3.
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If you have a statistical calculator or computer, use it to find the actual sample mean and sample standard deviation. Otherwise, use the values Σx = 2769 and Σx2 = 132,179 to compute the sample mean and sample standard deviation. (Round s to four decimal places.)
By using a statistical calculator, the actual sample mean and sample standard deviation are:
Actual sample mean = 46.1500.
Actual ample standard deviation = 8.6256.
How to calculate the sample mean for the set of data?In Mathematics and Geometry, the sample mean for any set of data can be calculated by using the following formula:
Mean = ∑x/(n - 1)
∑x represents the sum of all data values.(n - 1) represents the number of data contained in a sample.In Mathematics and Geometry, the sample standard deviation for any set of data can be calculated by using the following formula:
Standard deviation, δx = √(1/N × ∑(x - \(\bar{x}\))²)
x represents the observed values of a sample.\(\bar{x}\) is the mean value of the observations.N represents the total number of of observations.By using a statistical calculator, the actual sample mean and sample standard deviation are as follows;
Actual sample mean = 46.1500.
Actual ample standard deviation = 8.6256.
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Missing information:
The question is incomplete and the complete question is shown in the attached picture.
what are the four steps you must take to ensure your safety as a rescuer as well as the safety and survival of the victim?
The four steps you must take to ensure your safety as a rescuer as well as the safety and survival of the victim are:
Contact Emergency Medical Services (EMS)Survey the sceneCarryout Secondary survey of the victimCarryout Primary survey of the victimWhat is Emergency Medical Services (EMS)?Emergency Medical Services (EMS) can be defined as the health care officers that rendered emergency medical help to a victim before the person is been taking to the hospital for proper health care.
It is important that a rescuer ensure their own safety as well as the safety of the victim by contacting the EMS , surveying the scene as well as by conducting both secondary and primary survey of the affected person.
Therefore the rescuer should contact the Emergency Medical Services.
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The tree house will be 8 feet off the ground. Peter will hang a rope, with knots tied for foot holds. Each knot uses an additional 2 inches of rope. Write an expression for the length of the rope needed if Peter ties n knots and wants the rope to touch the ground. How many inches of rope are needed if there are 8 knots? Explain.
Answer:
Step-by-step explanation:
The answer is 56.
Answer:
The tree house is 8 feet off the ground, or 96 inches up because (8)(12) = 96. Each knot needs 2 extra inches, so the expression for the length of rope needed is 96 + 2n. If n = 8, then Peter will need 96 + 2(8) = 112 inches of rope.
Step-by-step explanation:
edge
1. Which of the following are equivalent to 24?
Select all that apply. Then choose 2 of your
selection and explain or show how they are
equivalent to 24.
a. 2 x 2
b. 2 2
C.4-22
d. 4X4
e24
f. 8 X 2
g. 26 : 2
Answer:
a
Step-by-step explanation:
Would really appreciate if someone helped me with this one please!
a) The value of x is 21
b) The value of the expression is 135.
c) The value of the expression is 135.
How to find the value of x?Here we know that the lines G and M are parallel, meaning that the two shown angles are alternarte exterior angles, and thus, have the same measure, then we can write:
5*(x + 6) = 9*(x - 6)
We can solve that linear equation for x:
5x + 30 = 9x - 54
30 + 54 = 9x - 5x
84 = 4x
84/4 = x
21 = x
Then the measures of the angles are:
a1 = 5*(21 + 6) = 135°
a2 = 9*(21 - 6) = 135°
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Estimate by rounding the second factor to the nearest ten . Then enter the product 4×72
Answer:
280
Step-by-step explanation:
when you estimate your problem becomes 4x70 so the answer is 280
Philip has been experimenting with new recipes at his bakery for the past 8 months. This month, he tried a recipe for lavender vanilla muffins and gave samples to his customers. He asked them to rate the muffins on a scale of 1 to 10 stars. The median rating was 7 stars, and the interquartile range was 4 stars. ) What can you conclude from these data and statistics? Select all that apply. () No customer gave the muffins fewer than 8 stars. A typical rating for the muffins was 7 stars. The middle 50% of customer ratings had a range of 4 stars. Submit
The business college computing center wants to determine the proportion of business students who have personal computers (PC's) at home. If the proportion differs from 30%, then the lab will modify a proposed enlargement of its facilities. Suppose a hypothesis test is conducted and the test statistic is 2.5. Find the P-value for a two-tailed test of hypothesis.
The probability of observing such an extreme result by chance alone is 0.0124.
To find the P-value for a two-tailed test of hypothesis, we need to first determine the significance level (alpha) of the test. Let's assume a significance level of 0.05, which is a common choice.
Since this is a two-tailed test, we need to find the probability of observing a test statistic as extreme or more extreme than 2.5 in either direction. We can find this probability using a standard normal distribution table or a calculator.
Using a standard normal distribution table, we can find that the probability of observing a z-score of 2.5 or greater is 0.0062. The probability of observing a z-score of -2.5 or smaller is also 0.0062. Therefore, the P-value for the two-tailed test of hypothesis is:
P-value = 2 * 0.0062
P-value = 0.0124
This means that if the true proportion of business students who have personal computers at home differs from 30%, with a significance level of 0.05, and we obtain a test statistic of 2.5, then the probability of observing such an extreme result by chance alone is 0.0124.
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1) Note the following polynomial:
6 + 9x^2 + 3x^3 + 2x^4 - 12x
Part A) Rewrite the polynomial in standard form.
Part B) What is the degree of this polynomial ?
Part C) Use the Rule of Signs to determine the options of possible number of positive zeroes, negative zeroes and complex zeroes
Part D) Use the rational root theorem to determine what positive or negative numbers could be the roots of this polynomial.
Part E) graph this polynomial. Present a sketch or a screenshot of graph please.
Part F) Based on your graph, how many positive, negative and complex zeroes does this polynomial have ?
PLEAS HELP AND SHOW WORK! 25 POINTS and DON"T FORGET ABOUT THE GRAPH!
The powers, (index) and coefficients of the polynomial indicates;
(A) The standard form is; 2·x⁴ + 3·x³ + 9·x² - 12·x + 6
(B) 4
(C) Positive zeroes; 2 or 0, negative zeroes; 0 or 2, complex zeroes; 0 or 2 or 4
(D) ±1/2, ±1, ±3/2, ±2, ±3, ±6
(E) Please find attached the graph of the polynomial created with MS Excel
(F) Four complex roots
What is a polynomial?A polynomial is a mathematical expression that consists of variables and coefficients joined together by addition, subtraction and multiplication, with the exponents of the variables consisting of positive integer values.
Part A) The polynomial in standard form is; 2·x⁴ + 3·x³ + 9·x² - 12·x + 6
Part B) The degree of the polynomial is 4, as the highest power of the polynomial is 4
Part C) The use of the Rule of Signs, to determine the options for the number of positive zeroes, negative zeroes and complex zeroes, can be presented as follows;
Positive zeroes options; The number of time the signs coefficients of the expression; 2·x⁴ + 3·x³ + 9·x² - 12·x + 6, changes are two as follows;
+6 to -12, and from -12 to +9, therefore, the number of possible positive zeroes are 2 or 0, positive zeroes
The negative zeroes options; The negative zeroes options can be found by changing the sign of all the coefficients as follows; -2·x⁴ - 3·x³ - 9·x² + 12·x - 6, therefore, the number of times the sign of the coefficients change are again from -6 to +12, and from +12 to -9, which is 2 times, therefore;
The possible number of negative zeros are 2 or 0, negative zeroes
Whereby there are possibly 0 negative zeros and 0 positive zeroes, the possible number of complex zeroes are 4
Whereby there are 2 negative zeros and 0 positive zeroes, the possible number of complex zeroes are 2 complex zeroes
Whereby there are possibly 0 negative zeros and 2 positive zeroes, the possible number of complex zeroes are 2 complex zeroes
Part D) The rational roots theorem indicates that for a polynomial the rational roots are in the form p/q, where p is a factor of the constant term, and q is a factor of the leading coefficient.
The constant term is 6, and the leading coefficient is 2. The factors of 6 are ±1, ±2, ±3, and ±6 and the factors of 2 are; ±1, ±2 therefore;
p/q = ±1/1, ±2/1, ±3/1, ±6/1, ±1/2, ±2/2, ±3/2, ±6/2, which can be summarized as; ±1/2, ±1, ±3/2, ±2, ±3, ±6
Part E) Please find attached a screenshot of the graph of the polynomial created with MS Excel
Part F) The attached graph of the polynomial, created with MS Excel, indicates that there are no real zeros of the polynomial, therefore, there are four complex zeroes of the polynomial
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A 100 mm deep stream of water is flowing over a boundary. It is considered to have zero velocity at the boundary and 1.5 m/s at the free surface. Assuming a linear velocity profile, what is the shear stress in the water?
Shear stress, put simply, is the effort of the water to draw the channel surface downstream.
What is the water's shear stress?Additionally known as the "tractive force," shear stress is used in several contexts.
Shear stress, put simply, is the effort of the water to draw the channel surface downstream.
Utilizing the idea of momentum conservation, shear stress is determined.This is a straightforward exercise in plugging in the viscosity definition's formula.
The use of appropriate units is difficult.The link between the fluid's internal shear stress and velocity gradient is known as the viscosity of a fluid.
Water is a Newtonian fluid with a linear relationship:
τ=ηΔVΔy
Equation 1:
where:
τ
Shear stress is
η
viscosity dynamic
At 20 degrees Celsius, water has a dynamic viscosity of 0.00102Pas.
η=0.00102Pa⋅s=0.00102N⋅sm2
Inputs for equation 1 (above):
τ=0.00102N⋅sm2(1.5ms−0)0.1m
=0.0153Nm2
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In the diagram below, segment PB is a tangent. IF PA = 3, and PB = 6, find the length of AC.
d. 9
Formula relation:
\(\begin{gathered} (PB)^2=PA*PC \\ 6^2=3*PC \\ 36=3*PC \\ \frac{36}{3}=PC \\ PC=12 \end{gathered}\)\(\begin{gathered} AC=PC-PA \\ AC=12-3 \\ AC=9 \end{gathered}\)lucy has 18 puzzles each with 250 pieces how many pieces are there in all (also its for 50 pts)
Answer:
4500
Step-by-step explanation:
250 x 18 = 4500
Can someone please help me out?
Answer:
11.5
Step-by-step explanation:
Coordinate values and side lengths are multiplied by the dilation scale factor. (Angle values remain unchanged.)
W'X' = (1/4)WX
W'X' = (1/4)(46) = 11.5
Caroline is taking a multiple choice test with a total of 40 points available. Each question is worth exactly 5 points. What would be Caroline's test score (out of 40) if she got 2 questions wrong? What would be her score if she got x questions wrong?
Answer:
30
40 - 5x
Step-by-step explanation:
Caroline is taking test worth 40 points that has 5 points per question. If she got 2 questions wrong, she would have a score of `30.
2 × 5 = 10
40 - 10 = 30
If Caroline got x questions wrong, she would have a score of 40 - 5x.
Use the coordinate plane to plot the points (6, 0) and (0, 5). Which statement is true? (0, 5) is located on the x-axis. (0, 5) is located at the origin. (6, 0) is located on the x-axis. (6, 0) is located at the origin.
Answer:
(6, 0) is located on the x-axis
Explanation:
For a point to be on the x-axis, its y-value must equal 0. (6, 0) has an x-value of 6 and a y-value of 0.
"(0, 5) is located at the origin" is not true because the origin is at (0, 0).
"(0, 5) is located on the x-axis" is not true because its y-value is 5, not 0.
"(6, 0) is located at the origin" is not true because the origin is at (0, 0).
The (6, 0) is located on the x-axis option (C) is correct because the y-coordinate is zero on the x-axis.
What is an ordered double?It is defined as a representation of coordinates in a two-dimensional coordinate plane. It has a list of two elements in it, such as (x, y).
\(\rm Area = |\dfrac{(x_1y_2-y_1x_2)+(x_2y_3-y_2x_3)....+(x_ny_1-y_nx_1)}{2}|\)
It is given that:
The points are (6, 0) and (0, 5).
After plotting on the coordinate plane,
For a point to be on the x-axis, its y-value must equal 0. (6, 0) has an x-value of 6 and a y-value of 0.
"(6, 0) is located at the origin" is not true because the origin is at (0, 0).
Thus, the (6, 0) is located on the x-axis option (C) is correct because the y-coordinate is zero on the x-axis.
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2. Kasie lives in Seattle. She can see her house from the observation deck of the Seattle Space Needle. The
observation deck is 520 feet above the ground and the angle of depression from the deck to her house
is 70. What is the direct distance from the base of the Space Needle to Kasie's house? Round your
answer to the nearest foot.
Direct distance from the base of the Space Needle to Kasie's house = 1429 feet.
What is angle of depression?The angle of depression is the angle between the horizontal line and the observation of the object from the horizontal line. It is basically used to get the distance of the two objects where the angles and an object's distance from the ground are known to us.
Given,
Height of the observation deck AB = 520 feet
Angle of depression = 70°
Distance of the Space needle base to house BC = ?
By the figure,
tan70° = AB/BC
BC = tan70°(AB)
BC = 2.7475(520)
BC = 1428.7 feet
Distance of the Space needle base to house to nearest foot = 1429 feet
Hence, 1429 feet is the distance between base of the Space Needle to Kasie's house.
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Ivan is making brownies from a boxed mix. He wants to combine 2 boxes. 1 box calls for ½ of a cup of water. The other calls for ⅓ of a cup of water. How much water will Ivan need to make brownies from both boxes?
Answer:1/56
Step-by-step explanation:
A Sumer job pays $5 per hour
b. After working 24 hours, do you have enough money to buy an MP3
player that costs $100? Explain your reasoning.
Answer:
Yes, since the total pay of $120 is more than the $100 cost of the MP3 player.
Step-by-step explanation:
hourly pay: $5/hour
number of hours: 24 hours
total pay = hourly pay × number of hours
total pay = $5/hour × 24 hours
total pay = $120
MP3 player costs $100.
Total pay is $120.
Answer: Yes, since the total pay of $120 is more than the $100 cost of the MP3 player.
A pound of flour costs $12. How many ounces of flour can be purchased for $3.30?
Answer:
4.4 ounces/ 4 ounce (if rounded)
Step-by-step explanation:
There are 16 ounces in a pound, therefore the equation 12/16 will be useful since 16 ounces in a pound can be divided by 12, in conclusion 12/16=0.75 which is how much an ounce costs.
Then you will take $3.30 and divide it by 0.75 to get your answer for how many ounces you can buy for $3.30 which will equal 4.4 ounces but if you were to round it would be 4 ounces
Hope this helps!
graph the parabola x=1/2(y-2)^2-4. find and graph the vertex, focus, directrix, and focal chord endpoints.
1. Find the graph of the parabola attached below
2. Vertex (-4, 2) Focus (-7/2, 2) Directrix (x = -9/2) Endpoints (-7/2, 1) (-7/2, 3)
How do we find the vertex, focus, directrix, and focal chord endpoints or the parabola?For the parabola, x = 1/2(y-2)² - 4 we will use the equation x = 4p(y-k)² + h,
Vertex → (h, k)
In our given equation, (y - 2) → (y - k), so k = 2. The term on the rightmost side of our equation (-4) → h in the form, so we know h = -4. ∴ vertex (-4, 2).
focus → (h, k) = (-4, 2); P = 1/2
Parabola is symmetric around the x axis and so the focus lies a distance P, from the center, along the x axis.
∴ Focus is (-4 + p, 2)
(-4 + 1/2, 2) ⇒ (-7/2, 2)
directrix → x = d
Parabola is symmetric around the x axis and therefore the directrix is a line paralled to the y axis a distance away from the ceter (-4, 2) x coordinate.
∴ x = -4 - p ⇒ x = -4 - 1/2
x = 9/2
focal chord endpoints →
The focus of the parabola is (-7/2, 2).
The y-coordinate of the focus is 2, so the y-coordinates of the endpoints of the focal chord are 2 + 1 and 2 - 1, → 3 and 1.
Therefore, the endpoints of the focal chord are:
(-7/2, 3) and (-7/2, 1).
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What is the measure of an exterior angle for the regular polygon below?A. 270 degreesB. 45 degreesC. 135 degreesD. 180 degreesthank you :)
Solution
What is the measure of an exterior angle for the regular polygon below:
Number of sides = 8
The formula for calculating the size of an exterior angle is: exterior angle of a polygon = 360 ÷ number of sides = 60
\(\begin{gathered} \frac{360}{n} \\ =\frac{360}{8} \\ =45 \end{gathered}\)Therefore the measure of exterior angle = 45 degrees
Answer: Option B