HELP HELP HELP HELP PLSSS

Answer:

d

Step-by-step explanation:

d

Hello.

In order to solve a proportion, you should cross-multiply:

\(\displaystyle\frac{7}{x} =\frac{5}{9}\)

Multiply 7 times 9 and 5 times x:

5x=63

Divide both sides by 5:

x=\(\displaystyle\frac{63}{5}\)

Now let's solve the second proportion.

Multiply 8p times 6 and 12 times 15:

48p=180

Divide both sides by 48:

p=3.75

I hope it helps.

Have an outstanding day.

\(\boxed{imperturbability}\)

p(A or B) = P(A) + P(B) - p(A and B)

The missing probability is P(B)

Sets are an organized collection of objects. Usually, sets are represented in curly braces {}, for example, A = {1,2,3,4} is a set.

In set theory, the operations of the sets are carried when two or more sets combine to form a single set under some of the given conditions. The basic operations on sets are:

p(A or B) = P(A) + P(B) - p(A and B) is a formula used in finding the probability of an event in a set sample.

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Let:

The slope m is given by:

So, we can conclude the slope of the line from point B to point A is -1/4

COUNTIF functions are used to return the count of cells specified by a set of conditions in the selected range.

The COUNTIF Function  will count the number of cells that meet a specific criterion. The function is categorized under Excel Statistical functions. A function is a predefined formula that performs calculations using specific values in a particular order. • The COUNTIF function in Excel counts the number of cells in a range that match one supplied condition. • Criteria can include logical operators (>,<,<>,=) and wildcards (*,?). • COUNTIF requires a cell range. • COUNTIF only supports a single condition • COUNTIFS function is used to support multiple criteria. • COUNTA function is used to count only the cells that have data. • The COUNT function is used to get the number of entries in a number field that is in a range or array of numbers.

Thus, option (d),COUNTIF function are used to return the count of cells specified by a set of conditions in the selected range.

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Answer:

144 km

Step-by-step explanation:

1 hour and a half hour = 90 minutes.

In 15 minutes a car travels 24 km

In 1 minute a car travels (24÷15) = 1.6 km

In 90 minutes a car travels (90×1.6)= 144 km

Ans.- 144 km

Answer:

The correct answer is B!

Step-by-step explanation:

I hope it helps you Sir (or ma'am.)

Answer:

4 hours and 7 hours

Step-by-step explanation:

Marcus = x hours

Donnell = x + 3 hours

Total = 11 hours

So Marcus practiced 4 hours and Donnell practiced  7 hours

Answer:Marcus=4 Donnell=7

Step-by-step explanation:11-3=8

8÷2 =4

4+3=7 hours used by Donnell

Remaining 4 hours is used by Marcus

Answer:

A = 803.84

General Formulas and Concepts:

Symbols

Pre-Algebra

Order of Operations: BPEMDAS

Geometry

Area of a Circle Formula: A = πr²

Step-by-step explanation:

Step 1: Define

Identify

r = 16

Step 2: Find Area

\(\\ \rm\bull\rightarrowtail y=(1x^2)+3(x)\)

\(\\ \rm\bull\rightarrowtail y=1(-6)^2+3(-6)\)

\(\\ \rm\bull\rightarrowtail y=1(36)+(-18)\)

Note the rule

\(\\ \rm\bull\rightarrowtail y=36-18\)

\(\\ \rm\bull\rightarrowtail y=18\)

Answer:

36     -18

18

Step-by-step explanation:

This is slightly confusing, since the question says "find the y coordinate if x = -4" yet underneath if appears they want x = -6 !

If x = -6

Substitute -6 into the equation in place of x

⇒ y = 1 × (-6)² + 3(-6)

Apply the rule (-a)² = a²  and  a(-b) = -ab:

⇒ y = 1 × (6)² + -3×6

⇒ y = 1 × 36 + -18

Using order of operations, carry out the multiplication first:

⇒ y = 36 + -18

Then the addition (subtraction)

⇒ y = 36 - 18

⇒ y = 18

A mprobability line ranging from 0 to 1 is the following:

The line shows the probability from 0 to 1 where a probability of 0 indicates an impossible event and a probability of 1 indicates a certain event.

(a) The price is $18.

(b) The rate of change of demand with respect to price when x = 3 is 1/8 thousand units per dollar.

(c) The elasticity of demand when x = 3 is -3/4.

(a) When x = 3, the price, p can be computed by substituting the value of x in the given equation.

So, p = -2(3)² - 2(3) + 31 = -18 dollars

Price, p = $18.

(b) The demand function is given by:

p = -2x² - 2x + 31

Differentiate with respect to p.

dp/dp = d/dp(-2x^2 - 2x + 31)

Simplifying this, we get:

1 = -4x dx/dp - 2

Solving for dx/dp, we get:

dx/dp = (1 + 2)/(4x)

Substituting x = 3, we get:

dx/dp = 3/24 = 1/8

Therefore, the rate of change of demand with respect to price when x = 3 is 1/8 thousand units per dollar.

(c) To compute the elasticity of demand when x = 3, we use the formula:

E = (p/x) * (dx/dp)

Substituting x = 3 and dx/dp = 1/8 from parts (a) and (b), we get:

E = (p/3) * (1/8)

Substituting p = -18 from part (a), we get:

E = (-18/3) * (1/8) = -3/4

Therefore, the elasticity of demand when x = 3 is -3/4.

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Answer:

1) is greater than

2) is equal to

3) is equal to

4) is less than

Please mark as brainliest if answer is right

Have a great day, be safe and healthy  

Thank u  

XD  

Answer:

Approximate between two whole numbers by finding the perfect squares nearest to the target number. Identify which value the non-perfect square root is closest to, then use the iterative process to approximate further to the tenths place, and then further to the hundredths place.

Step-by-step explanation:

Scientific notation is the way through which a very small or a very large number can be written in shorthand. The given following number or sentences can be written in the form of scientific notation as shown.

Scientific notation is the way through which a very small or a very large number can be written in shorthand.  In scientific notations when a number between 1 and 10s is multiplied by a power of 10.

For example, 6,500,000,000,000 can be written as 6.5e+12 or 6.5×10¹².

The given following number or sentences can be written in the form of scientific notation as shown below.

a.) 1,000,000 = 1×10⁶ = 1e+6

b.) .00005 = 5×10⁻⁵ = 5e-5

c.) 40 thousand = 40,000 = 4×10⁴ = 4e+4

d.) 7 trillion = 7,000,000,000,000 = 7×10¹² = 7e+12

e.) 8 thousandths = 0.008 = 8×10⁻³ = 8e-3

f.) one tenth = 0.1 = 1×10⁻¹ = 1e-1

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Answer:

slope is y=10x.

Slope shows that she is consistently burning 10 calories per minute

Step-by-step explanation:

Answer:-2

Step-by-step explanation:

whatever the number attachted to x is, is the slope

Answer:

slope=2

Step-by-step explanation:

1)subtract -2x from both sides and you should have y=2x+1 as your new equation

hope this helps!

Thus, the shaded region is the set of solutions for this system of inequalities, and the integers in this region are -4, -3, -2, -1, 0, 1, 2, and 3.

To solve the system of inequalities by graphing, we first need to rewrite each inequality in slope-intercept form, y < mx + b, where y is the dependent variable (in this case, we can use y to represent both 3-2a and 5a), m is the slope, x is the independent variable (in this case, a), and b is the y-intercept.

Starting with the first inequality, 3-2a < 13, we can subtract 3 from both sides to get -2a < 10, and then divide both sides by -2 to get a > -5. So the slope is negative 2 and the y-intercept is 3. We can graph this as a dotted line with a shading to the right, since a is greater than -5:

y < -2a + 3

Next, we can rewrite the second inequality, 5a < 17, by dividing both sides by 5 to get a < 3.4. So the slope is 5/1 (or just 5) and the y-intercept is 0. We can graph this as a dotted line with a shading to the left, since a is less than 3.4:

y < 5a

To find the integers that are in the set of solutions for this system of inequalities, we need to look for the values of a that satisfy both inequalities. From the first inequality, we know that a must be greater than -5, but from the second inequality, we know that a must be less than 3.4. So the integers that are in the set of solutions are the integers between -4 and 3 (inclusive):

-4, -3, -2, -1, 0, 1, 2, 3

To see this graphically, we can shade the region that satisfies both inequalities:

y < -2a + 3 and y < 5a

The shaded region is the set of solutions for this system of inequalities, and the integers in this region are -4, -3, -2, -1, 0, 1, 2, and 3.

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Answer:

Formula : V = I (1 + R)^T  , Deers after 5 years ≈  556

Step-by-step explanation:

Exponential formula for  final value 'v' - for initial value 'i' at growth rate 'r' for a period of time 't'

V = I (1 + R)^T

As per given deer case, I = 330 & R = 11% = 0.11

V = 330 ( 1 + 0.11 )^t

Predicted deers after 5 years, V = 330 (1.11)^5

330 x 1.685 = 556.05

Answer:

a

Step-by-step explanation:

27 and |-27| are the same not opposites

Answer:

we cant answer if we dont know what sin A is

Answer:

16 rows, 8 seedlings left.

Step-by-step explanation:

Divide 200 by 12, since 200 seedlings are going to be split in 12 groups in order to fill the rows.

200 ÷ 12 = 16 with a remainder of 8.

The remainder is basically what is left.

Since 12 seedlings are planted in each row, 8 seedlings is not enough to completely fill the row. So, the answer is 16 rows with 8 seedlings left.

Hope this helped !

The congruence theorem that can be used to verify ΔBAE ≅ ΔCAD is HL (Hypotenuse and leg of a right angles triangle)

Congruence Definition:-

If the corresponding interior angles and sides of two triangles are equal in size, then the triangles are congruent.

To denote congruence, we use the symbol ≅.

Theorems of Triangle Congruence

1.  Angle Side Angle (ASA)

2. Side Side Side (SSS)

3. Side Angle Side (SAS)

4. RHS or HL (Right Angle Hypotenuse Side)

According to the question,

ΔBAE ≅ ΔCAD

So, we can say that

∠BAE = ∠DAC = 90 degrees (Right angle)

BE = CD (Hypotenuse)

Therefore by HL, If the hypotenuse and one of the right triangle's sides equals the hypotenuse and the corresponding side of the second right-angled triangle, the two triangles are said to be congruent to one another.

Hence, ΔBAE ≅ ΔCAD by HL congruence theorem

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Chelsea made a mistake in simplifying the equation 3(x-3). To find the solution to 4x-5=2(3(x-3)), we first simplify the expression inside the parentheses.

Now, to isolate the variable x, we need to move the terms with x to one side of the equation. Let's subtract 4x from both sides, which gives us -5-4x=6x-18-4x. Simplifying this, we get -5-4x=2x-18.

Next, let's move the constant terms to the other side. Adding 18 to both sides, we get -5-4x+18=2x-18+18. Simplifying this, we get -4x+13=2x.

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Chelsea made a mistake when subtracting the variable term from both sides. By identifying this error and correctly following the steps, we find that the solution to the equation 4x - 5 = 2 3(x - 3) is x = -7.

Chelsea made a mistake in her work when finding the solution to the equation 4x - 5 = 2 3(x - 3). To determine where she went wrong, let's analyze her steps.

Step 1: Distribute 3 to (x - 3): 4x - 5 = 2 3x - 6.
Step 2: Combine like terms: 4x - 5 = 6x - 12.
Step 3: Move the variables to one side and the constants to the other side. Chelsea may have mistakenly subtracted 4x from both sides instead of 6x. This would result in: -5 = 2x - 12.
Step 4: Solve for x. Chelsea may have then incorrectly added 12 to both sides instead of adding 5, leading to: 7 = 2x.
Step 5: Divide both sides by 2: x = 7/2.

Upon reviewing her work, Chelsea should have subtracted 6x from both sides in Step 3, not 4x. This would have resulted in the equation 2x - 5 = -12. Correctly following the steps would lead to the correct solution: x = -7.

Therefore, Chelsea made a mistake when subtracting the variable term from both sides. By identifying this error and correctly following the steps, we find that the solution to the equation 4x - 5 = 2 3(x - 3) is x = -7.

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volume= 16/3, A coordinate plane is a graphing and description system for points and lines. A vertical (y) axis and a horizontal (x) axis make up the coordinate plane. There are four quadrants in the coordinate plane. The point where these lines connect is called the origin (0, 0).

limits

z= 0 to z = 4-y-2x

y= 0 to y = 4- 2x

x= 0 to x= 2

volume

v= \(\int\limits^2_0 \int\limits^4_0 \int\limits^4_0 dzdydx\)

v= \(\int\limits^2_0 \int\limits^4_0 (4-y-2x) dydx\)

v= \(\int\limits^2_0 ( 4y- y^{2} / 2 - 2xy) ^4^-^2^x _0\)

dx= \(\int\limits^2_0 [ 16-8x - 16+ 4x^2 - 16x / 2 - 8x+ 4x^2 ] dx\)

v= \(\int\limits^2_0 [ 8+ 2x^2- 8x] dx\\\)

= [ 8x + 2x^3 / 3 - 8x^2 / 2 ] ^2_0

= [16+ 16/3- 16]

v= 16/3

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Complete Question

Question: Sketch The Tetrahedron Enclosed By The Coordinate Planes And The Plane 2x+Y+Z=4. Use A Triple Integral To Find The Volume Of The tetrahedron

Answer:

(4+√142)/(3) or x=(4-√142) /3

Step-by-step explanation:

(4+√142)/(3) or x=4-√142 /3

Answer:

  yes, the relationship is proportional

Step-by-step explanation:

If the cost per ticket is the same, regardless of the number of tickets, then the relationship is proportional.

  $18/(3 tickets) = $6/ticket

  $30/(5 tickets) = $6/ticket . . . the same as for 3 tickets

The relationship is proportional.

Answer:

[f(1) - f(3)] / [1–3]

Step-by-step explanation:

Formula

f(x) = 6(2.5)

How to find

The average rate of change over the interval [a,b], or the secant line between the points a and b on the function f(x), is [f(a) - f(b)]/[a-b]. So, substitute a for 1 and b for 3, and you get [f(1) - f(3)] / [1–3]. The quotient of that is your average rate of change.

Answer:

D / 10

Step-by-step explanation:

X - 1 over 3 = 3

10-1 = 9/3 = 3

Answer:

\(value \: of \: k \: = 3 \\ \\ \frac{x - 1}{3} = k \\ put \: value \: of \: k \: which \: is \: 3 \\ \frac{x - 1}{3} = (3) \\ as \: 3 \: is \: dividing \: here \: it \: will \\ be \: multiplied \: on \: anthor \: side \: \\ x - 1 = 3 \times 3 \\ x - 1 = 9 \\ x = 9 + 1 \\ x = 10 \: \: \: answer \\ \\ so \: answer \: is \: option \: d) \: 10\)

Answer:

the square root is 2.82

Step-by-step explanation:

24-16=8

√8=2.82