Which symbol is used to name a line with two points A and B? AB AB
Answers
The symbol used to denote a line is <--->
The points on the line is written below this symbol
AB is written below this symbol <--->
Related Questions
How much stainless-steel containing 15% chromium and stainless-steel containing 18% chromium must be mixed to create 9.00 kg new stainless-steel with 17% chromium?
Answers
The solution to the system of equations is 6kg of 15 % chromium and 3kg of 18 % stainless steel
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the amount of chromium be x
Let the amount of stainless steel be y
The percentage of amount of chromium = 15 % of x
The percentage of amount of stainless steel = 18 % of y
Now , the amount of mixture = 9 kg
The percentage of amount of mixture = 17 %
So , the equation will be
x + y = 9 be equation (1)
0.15x + 0.18y = 0.17 ( 9 )
On simplifying the equation , we get
15x + 18y = 153
Divide by 3 on both sides of the equation , we get
5x + 6y = 51 be equation (2)
Multiply equation (1) by 5 , we get
5x + 5y = 45 be equation (3)
Subtracting equation (3) from equation (2) , we get
y = 6 kg
So , the value of x = 3 kg
Hence , the mixture contains 6kg of 15 % chromium and 3kg of 18 % stainless steel
To learn more about equations click :
https://brainly.com/question/19297665
#SPJ1
fred can complete a work in 6 days and Paul can complete a work in 3 days. if fred and Paul work together, how many days can the work be completed?
Answers
Answer:
I think its 3 or 2 days bc if paul can get two works done by the time fred can get one done then the days should be divided.
Step-by-step explanation:
What is 15÷1/9= __________
Answers
Answer:
THE ANSWER IS 135!!!
Step-by-step explanation:
Pretend 15 is 15/1. Then use cross multiplication to divide the two fractions.
15/1 divided by 1/9 = 15/1 * 9/1 = 15 *9 = 135
Let's roll two dice and find the probability of rolling a certain sum. Is this a simple or compound event?
Two dice - Red and Blue
Recall that a simple event has one and only one outcome of interest. In this example, we are rolling two dice, but we are only interested in one outcome, the sum of the two dice. This is a simple event.
What is the probability of:
Rolling a sum of 1?
Rolling a sum of 3?
Rolling a sum of 12?
Rolling a sum of 7?
Since we are rolling a pair of dice and looking for the sum, the sample space is a little more complicated than rolling one die. The chart below will help us determine the possible outcomes. The top row indicates the numbers on the sides of the blue die and the first column represents the number on the sides of the red die. The white area indicates the sum of the numbers in the row and column.
# Rolled 1 2 3 4 5 6
1 1+1=2
1
+
1
=
2
1+2=3
1
+
2
=
3
1+3=4
1
+
3
=
4
1+4=5
1
+
4
=
5
1+5=6
1
+
5
=
6
1+6=7
1
+
6
=
7
2 2+1=3
2
+
1
=
3
2+2=4
2
+
2
=
4
2+3=5
2
+
3
=
5
2+4=6
2
+
4
=
6
2+5=7
2
+
5
=
7
2+6=8
2
+
6
=
8
3 3+1=4
3
+
1
=
4
3+2=5
3
+
2
=
5
3+3=6
3
+
3
=
6
3+4=7
3
+
4
=
7
3+5=8
3
+
5
=
8
3+6=9
3
+
6
=
9
4 4+1=5
4
+
1
=
5
4+2=6
4
+
2
=
6
4+3=7
4
+
3
=
7
4+4=8
4
+
4
=
8
4+5=9
4
+
5
=
9
4+6=10
4
+
6
=
10
5 5+1=6
5
+
1
=
6
5+2=7
5
+
2
=
7
5+3=8
5
+
3
=
8
5+4=9
5
+
4
=
9
5+5=10
5
+
5
=
10
5+6=11
5
+
6
=
11
6 6+1=7
6
+
1
=
7
6+2=8
6
+
2
=
8
6+3=9
6
+
3
=
9
6+4=10
6
+
4
=
10
6+5=11
6
+
5
=
11
6+6=12
6
+
6
=
12
How many outcomes are in the sample space? Answer
Answers
Answer:
the answer to your question how many outcomes is really gonn adepend on you you slove you problem but my amswer is gonna be 7.
Can anyone help me with this question?
Answers
Answer:
-7/4
Step-by-step explanation:
we can see that every time the value of x increases by 4, the value of y decreases by 7.
let's pick two sets of coordinates (first two will be fine).
that is (-4, 6) and (0, -1)
Slope = (change in y values) / (change in x values)
= (-1 - 6) / (0 - -4)
= -7 / (0 + 4)
= -7/4.
so our slope (gradient) is -7/4
subtraction property of equality
multiplication property of equality
17
3
3
4
3
X-
Step
3
X=
17 3 17
7--7-x+5-77
3
5x.-
4
4
-2/x-12x X=
1 2
X= X-
2
X=-
4
5
-
-
X=
division property of equality
X+5
2
-/3/33
addition property of equality
2
3
8
15
-²333
x-²/3-1/2 x
-
17
4
5
3
given
simplification
Justification
Answers
The required justification for the solution to the equation is shown in the solution part.
As per the given equation, the required solution would be as follows:
Given:
17/3 - (3/4)x = 1(/2)x + 5
Subtraction property of equality:
17/3 - (3/4)x - 17/3 = 1(/2)x + 5 - 17/3
- (3/4)x = 1(/2)x - 2/3
Addition property of equality:
- (3/4)x - 1(/2)x = 1(/2)x - 2/3 - 1(/2)x
-(5/4)x = -2/3
Multiplication property of equality:
-(5/4)x × -4/5 = -2/3 × -4/5
Simplification:
x = 8/15
The required justification for the solution to the equation is shown in the solution part.
Learn more about the solution to the equation here:
brainly.com/question/15272274
#SPJ1
Answer:
Answer shown in picture.
A teacher graphs a system of equations using the lines shown and asks four students to write down the coordinates representing the solution to the system.
Based on the graph, which student’s ordered pair represents the solution to the system of equations?
A. (3, 2)
B. (2, 3)
C. (0, 5)
D. (0, -1)
Answers
After four years in college, Josie owes $50000 in student loans. The interest rate on the federal loans is 2.8% and the rate on the private bank loans is 4.8%. The total interest she owes for one year was $1,600.00.What is the amount of each loan?
Federal loan at 2.8% account = $
Private bank loan at 4.8% account = $
Answers
The federal loan at 2.8% is approximately 11000, and the private bank loan at 4.8 percent is around 39000 (which is 50000 - 11000).
How to solve the problem?Let's use f and p to denote the amounts of Josie's federal and private bank loans, respectively.
We know that the total amount of loans is 50000, so:
f + p = 50000
We also know that the interest on federal loans at 2.8% and the interest on private bank loans at 4.8% add up to 1600 per year. The interest on the federal loans is 0.028f and the interest on the private bank loans is 0.048p, so:
0.028f + 0.048p = 1600
We can use the first equation to solve for one of the variables in terms of the other. For example, we can solve for p:
p = 50000 - f
Substituting this into the second equation, we get:
\(0.028f + 0.048(50000 - f) = 1600\)
Simplifying and solving for \(f\), we get:
\(f = \frac{1600 - 0.048 \cdot 50000}{0.02} \approx 11000\)
Therefore, the federal loan at 2.8% is approximately 11000, and the private bank loan at 4.8% is approximately 39000 (which is 50000 - 11000).
To know more about interest visit:
https://brainly.com/question/30393144
#SPJ1
PLEASE HELP ME 50 points
Answers
Please help i’ll give brainliest and please dont say this is east im in 6th and just learned this
Answers
Answer:
C
Step-by-step explanation:
1/3 is .3 repeating
and you need to move decimal over twice for a percentage so should be 15%
Is this a function graph
Answers
Answer:
No, it is not a function graph, as there are no variables present in this image.
The perimeter of a rectangle is 78 cm. If the length is 13 cm, how wide is the rectangle?
A) First write an equation you can use to answer this question. Use w as your variable in the equation.
The equation is__
B) Solve your equation in part [A] to find the width of the rectangle.
Answer: The rectangle is __
cm wide.
Answers
Answer:
the answer is w=26cm
Step-by-step explanation:
HELPPPPPPPPPPPPPPPPP AGIANNNNNNNNNNNNNNN
Answers
+0
1. Sam has a rope that measures
(5 x 1/10) + (6 x 1/100) + (8 x 1/1000)
How can this measurement be written as a decimal?
Answers
you randomly select one card from a 52 card deck. find probability of selecting the 10 of spades or the four of diamonds.
Answers
Answer:
1/26
Step-by-step explanation:
'or' in the question means add
theres only 1 card that is 10 of spades
and
theres only 1 card that is four of diamonds
1/52 + 1/52 = 2/52 = 1/26
https://brainly.com/question/12682970
Find the 15th term of the arithmetic sequence if the first term is -3 and the common difference is 2. Write the equation first, then substitute to find the answer
Answers
Answer:
25.
Step-by-step explanation:
f(x)=-3+2(x-1)
f(15)=-3+2(15-1)
f(15)=-3+2(14)
f(15)=-3+28
f(15)=25
Type the correct answer in each box. Round your answers to the nearest thousandth.
A company has 200 machines. Each machine has 12% probability of not working.
If you were to pick 40 machines randomly, the probability that 5 would not be working is
and the probability that at least one machine would be working is
the probability that all would be working is
Answers
1) The probability that 5 will be working is: 0.187
2) The probability that at least one machine would be working is: 0.006
3) The probability that all would be working is : 1
How to find the probability of working?We are given the parameters as:
Total number of machines = 200
Probability that a Machine is working = 12% = 0.12
1) Now, you want to pick 40 machines and want to find the probability that 5 will be working.
This probability is given by the expression:
P(5 working) = C(40,5) * 0.12⁵·0.88³⁵ ≈ 0.187
where C(n, k) = n!/(k!(n-k)!)
2) The probability that at least one machine would be working is:
0.88⁴⁰ ≈ 0.006
3) The probability that all would be working is the complement of the probability that all have failed. Thus:
P(all working) = 1 - 0.12⁴⁰ ≈ 1
Read more about probability of working at; https://brainly.com/question/25870256
#SPJ1
What is the range of the conic section?
(yl-3≤y≤3)
Answers
Answer:
1the answer for this is easy it is 4.4
A rectangle measures 7.08 cm by 3.2 cm.
Work out the area of the rectangle.
Answers
Answer:
22.67 cm^2
Step-by-step explanation:
The computation of the area of the rectangle is shown below:
As we know that
Area of the rectangle = Length × breadth
Here we assume the length be 7.08 cm
Or breadth be 3.2 cm
Or if we assume them inverse like length be 7.08 cm and breadth be 3.2 cm
SO the area of the rectangle is
= 7.08 cm × 3.2 cm
= 22.67 cm^2
In the both cases the answer would be the same
Which number is NOT a common
of the fractions being
denominator
added?
2/9 + 5/12
A 108
(B) 72
(C) 36
(D) 24
Answers
Check the picture below.
now, doing a prime factoring on both the denominators, notice, the repeated factors get used only once in the LCD calculation, so the red "3" only goes once in the LCD and then the others, so the LCD for both of those is 3*3*2*2 = 36.
"L" in LCD stands for Least, so that's the smallest, however we can have a CD that's no small and is simply a multiple of the LCD, let's check who isn't an LCD or CD
\(\begin{array}{rllll} 108=3\cdot 36 & \bigotimes\\\\ 72=2\cdot 36& \bigotimes\\\\ 36=1\cdot 36&\bigotimes\\\\ 24&\textit{\LARGE \checkmark} \end{array}\)
Which of the following is NOT true?
Answers
Answer
B and C are true for sure but i am not sure about A or C.... i think it is C
Step-by-step explanation:
Determine the degree of the polynomial 49xy+34y−72z.
Answers
The polynomial 49 · x · y + 34 · y - 72 · z has three variables (x, y, z) and each of these variables has a degree of 1.
How to determine the degree of a polynomial
Variables and degrees are the most important features in polynomials. A variable is a letter that represents at least one value of an expression and the degree of the variable is the maximum number of the exponent associated to the variable. According to the statement, the polynomial has three variables (x, y, z), each of them has an degree of 1, that is:
grade (x) = 1, grade (y) = 1, grade (z) = 1
To learn more on degree of polynomials: https://brainly.com/question/12850541
#SPJ1
What is the simplified form of the following expression?
RootIndex 3 StartRoot StartFraction 4 x Over 5 EndFraction EndRoot
StartFraction RootIndex 3 StartRoot 4 x EndRoot Over 5 EndFraction
StartFraction RootIndex 3 StartRoot 20 x EndRoot Over 5 EndFraction
StartFraction RootIndex 3 StartRoot 100 x EndRoot Over 5 EndFraction
StartFraction RootIndex 3 StartRoot 100 x EndRoot Over 125 EndFraction
Answers
Answer:
c StartFraction RootIndex 3 StartRoot 100 x EndRoot Over 5 EndFraction
Step-by-step explanation:
Answer:
Step-by-step explanation:
C. \(\sqrt[3]{100}\)x/5
how do find the domain and range from a graph, and writing it as an inequality
Answers
To determine the range is the same as to determine which numbers appear as the second number (the y-value) in an ordered pair that is part of the graph.
Here are some examples:
y
≥
x
2
+
3
graph{y >= x^2+3 [-11.6, 13.72, 0.15, 12.81]}
Although it is not 100% certain from just the graph, this graph does get wider and wider. Every
x
does appear in some ordered pair on the graph. The domain is all real numbers.
The
y
values that appear start at
3
and go up. We get all numbers greater than or equal to
3
. Inequality:
y
≥
3
.
If you've learned interval notation, you write:
[
3
,
∞
)
x
2
+
y
2
9
≤
1
# graph{x^2 + y^2/9 <= 1 [-5.35, 7.14, -3.105, 3.14]}
Domain (x-values) Go from
−
1
to
1
(inequality:
−
1
≤
x
≤
1
)(interval:
[
−
1
,
1
]
)
Range:
−
3
to
3
(inequal:
−
3
≤
y
≤
3
(interval:
[
−
3
,
3
]
)
More challenging:
x
2
+
y
2
<
9
graph{x^2+y^2 < 9 [-5.35, 7.14, -3.105, 3.14]}
The dotted line is not included, so we do not include the points at
−
3
or at
3
.
Domain:
−
3
<
x
<
3
(interval
(
−
3
,
3
)
)
R
a
n
≥
:
-3(
∫
e
r
v
a
l
(-3, 3))
Last one:
x
−
y
2
<
6
graph{x- y^2 < 6 [-9.87, 30.68, -9.96, 10.32]}
Domain: all real numbers
Range: all real numbers
In 2022, a random sample of UGA students found that they slept an average of 7.43 hours per night. The margin of error for a 90% confidence interval was reported as 1.32 hours.
(a) What is the lower limit of this 90% confidence interval?
lower limit = (2 decimal places)
(b) If 500 random samples like this were selected, and a 90% confidence interval was constructed using each sample, approximately how many of these confidence intervals would contain the population mean?
(whole number)
Answers
Step-by-step explanation:
(a) The lower limit of the 90% confidence interval can be calculated using the formula:
lower limit = sample mean - margin of error
Plugging in the given values, we have:
lower limit = 7.43 - 1.32
lower limit = 6.11 (rounded to 2 decimal places)
Therefore, the lower limit of the 90% confidence interval is approximately 6.11 hours per night.
(b) If 500 random samples like this were selected, and a 90% confidence interval was constructed using each sample, the expected number of intervals that would contain the population mean can be approximated using the margin of error as a guide.
Since the margin of error is 1.32 hours, we can expect roughly 90% of the confidence intervals to contain the true population mean. Therefore, out of 500 samples, we would expect approximately:
500 * 0.9 = 450
So, approximately 450 of these confidence intervals would contain the population mean.
Christie has $200 in her bank account. Every month, she deposits $20 into her account.
The equation of the line that models the amount of money, y, in her account x months from now is y = x .
Answers
Answer:
y = 20x + 200
Step-by-step explanation:
The 200 is the constant. It is only added once, but the monthly deposits are added at 20 every month.
After 1 month:
y = 20x + 200
y = 20(1) + 200
y = 20 + 200
y =220 money deposited.
After 2 months:
y = 20x + 200
y = 20(2) + 200
y = 40 + 200
y =240 money deposited.
After 3 months:
y = 20x + 200
y = 20(3) + 200
y = 60 + 200
y = 260 money deposited
And so on, and so on, and so on...
If triangle ABC is reflected across the line y = x, are the pre-image and image congruent? Why, or why not?
OYes, distance and angle measure are preserved
OYes, angle measure is preserved and distance is not
O No, distance is preserved but angle measure is not
O No, neither distance nor angle measure are preserved
Answers
The correct answer is: O Yes, distance and angle measure are preserved.
When a triangle ABC is reflected across the line y = x, the pre-image and image are congruent.
This is because the line y = x is the perpendicular bisector of the segment joining each corresponding point of the pre-image and image.
Reflection across the line y = x is a type of transformation known as an isometry, which preserves both distance and angle measure.
Here's why:
Distance preservation:
When a point is reflected across the line y = x, the distance between the original point and its reflection remains the same.
This holds true for all corresponding points of the triangle.
Therefore, the distance between any two corresponding points in the pre-image and image triangle will be equal, resulting in distance preservation.
Angle preservation: When a line segment is reflected across the line y = x, the angle between the line segment and the line y = x is preserved. This means that the corresponding angles in the pre-image and image triangle will be congruent.
Since both distance and angle measure are preserved during reflection across the line y = x, the pre-image and image triangles are congruent.
It's important to note that congruence under reflection across a line holds only when the line of reflection is the same for both the pre-image and image.
If the line of reflection were different, the triangles would not be congruent.
For similar question on distance.
https://brainly.com/question/26550516
#SPJ8
You attend a baseball game with friends and visit the snack stand between innings. Soda costs $2 a can, and a box of popcorn costs $1.50. You have $15 with you, and you wish to buy more cans of soda than boxes of popcorn. If x represents the number of cans of soda and y the number of boxes of popcorn, which graph represents the inequalities in this scenario? A. graph A B. graph B C. You attend a baseball game with friends and visit the snack stand between innings. Soda costs $2 a can, and a box of popcorn costs $1.50. You have $15 with you, and you wish to buy more cans of soda than boxes of popcorn. If x represents the number of cans of soda and y the number of boxes of popcorn, which graph represents the inequalities in this scenario? A. graph A B. graph B C. graph C D. graph D C D. graph D
Answers
Answer:
I feel that is would be D
Step-by-step explanation:
This is the most reasonable awnser.
North Dakota has 465 campgrounds over 12 counties while West Virginia has 711 campgrounds. If North Dakota was proportional to West Virginia in the number of campgrounds to counties, how many counties would West Virginia be expected to have? Round to the nearest whole number.
Answers
Number of countries would west Virginia be expected to have is 18 countries
The number of campgrounds that North Dakota has = 465 campgrounds
The number of countries = 12 countries
The number of campgrounds that West Virginia has = 711 campgrounds
Given that the North Dakota was proportional to West Virginia in the number of campgrounds to counties.
The proportion will be
465 / 12 = 711 / x
Divide the terms
38.75 = 711 / x
x = 711 / 38.75
Divide the terms
x = 18.4
x ≈ 18 countries
Hence, number of countries would west Virginia be expected to have is 18 countries
Learn more about proportional here
brainly.com/question/7096655
#SPJ1
Find the 68th term of the following arithmetic sequence.
16, 23, 30, 37,
Answers
Then just go 7(68)+8
=484
Answer:
485
Step-by-step explanation:
first term = 16
second term = 23
common difference= second -. first
=23-16
=7
68 term= a + 67d
=16+67×7
=16 +469
=485