Which statement is true

Answer:

Her riding speed is "11.84 mph".

Step-by-step explanation:

In order to solve this problem we will say that Audrey's riding speed is equal to "x" mph. Since her hiking speed is 9 mph less than her riding speed, then it is "x -9" mph. The average speed formula is given by:

speed = distance/time

Thefore the time to travel a certain distance with a certain speed is:

time = distance/speed

Her time to hike 6 miles is the same as her time to ride 25 miles, therefore:

ride time = hike time

25/x = 6/(x - 9)

25(x-9) = 6x

25x -225 = 6x

19x = 225

x = 225/19 = 11.84 mph

Her riding speed is "11.84 mph".

Answer: 5 is written on the red card.

Step-by-step explanation:

Given that the product of all the digits on the blue cards is 72576.

That is:

4! × 9 × 8 × 7 × 6

= 24 × 3024

= 72576

And the nine different positive digits will be 1 2 3 4 5 6 7 8 9

4! = 4 × 3 × 2 × 1

So, 5 is missing from the product of above number that gave 72576.

Therefore, 5 is the digit is written on the red card

Answer:

C. 98

Step-by-step explanation:

122 - 24 = 98

Answer:

1/10, or 10%

Step-by-step explanation:

There are 2 outcomes you can get from one toss, heads and tails. Therefore, if you tossed it once, the probability of landing tails would be 1/2, or 50%. Since you toss it 5 times, you will multiply the probability of one toss by five. 1/2x5 = 1/10, so your probability of landing tails on every toss when thrown 5 times is 1/10, or 10% :)

Answer:

70 Forsure E2020

Step-by-step explanation:

The coordinates of the point of equilibrium are (-60, 110).

A demand curve is graph that shows the relationship between the price of a good or service and the quantity demanded within a specified time frame.

Mathematically, we can write demand curve equation as -

Q = a - bP

where -

Q = linear demand curve

a = factors influencing demand besides price

b = slope

P = price

Given is to find the price at the point of equilibrium.

Equation for supply curve -

y = mx + c

y = {(25 - 20)/(10 - 0)}x + c

y = x/2 + 20

Equation for demand curve -

y = mx + c

y = {(10 - 20)/(40 - 30)}x + c

y = - x + 50

Point of equilibrium -

The point where demand equals to supply. We can write -

x/2 + 20 = - x + 50

x/2 - x = 30

- x/2 = 30

x = - 60

then -

y = 60 + 50

y = 110

Therefore, the coordinates of the point of equilibrium are (-60, 110).

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Answer: none of them

Step-by-step explanation:

To translate y = x + 7 one unit to the left, the expression becomes y = x + 8. To move y = 3x - 5 one unit to the right, it becomes y = 3x - 8. The translation shifts the graph parallel to the x-axis while maintaining its shape.

To translate the graph of the function y = x + 7 one unit to the left, we substitute x with (x + 1) because adding to the independent variable moves the graph to the left.

Therefore, the translated expression would be y = (x + 1) + 7 which simplifies to y = x + 8.

Similarly, to translate the graph of the function y = 3x - 5 one unit to the right, we substitute x with (x - 1) because subtracting from the independent variable moves the graph to the right.

The translated expression is y = 3(x - 1) - 5, which simplifies to y = 3x - 3 - 5 or y = 3x - 8.

The process of translating graphs involves shifting each point parallel to the x-axis, either to the left or right, by the desired number of units without altering the shape of the graph.

Answer:

h(3) =  207 feet

Step-by-step explanation:

what is the maximum height for -16t^2+96t+63

h(t) = -16t^2+96t+63

We see  max height at the vertex of this parabolic function

x = -96/2*(-16)  = 3 seconds

h(3) = -16*3*3  + 96*3  + 63

h(3) =  -144  + 288 + 63

h(3) =  207 feet

Answer:

D. The mathematical expectation of Option A is 1. The mathematical expectation of Option B is 1.5. Option B offers a greater likelihood of advancing to the finish line.

Step-by-step explanation:

The result of a product is odd only when the two numbers are odds.

There are 6*6 = 36 possible outcomes when two dice are rolled. Only 9 of them are a combination of two odd numbers: {1, 1} {1, 3} {1, 5} {3, 1} {3, 3} {3, 5} {5, 1} {5, 3} {5, 5}. Then 36 - 9 = 27 outcomes are even.

P(even) = 27/36 = 0.75

Option A) Mathematical expectation: 0.75*4 + 0.25*(-8) = 1

Option B) Mathematical expectation: 0.75*5 + 0.25*(-9) = 1.5

Answer:

160

Step-by-step explanation:

If thats not the answer then its 320

Answer:

what is the first question i need to see the first question before giving you the answer

Step-by-step explanation:

or question 4

Answer:

StartFraction 8 Over 15 EndFraction

Step-by-step explanation:

We want to represent 0.5333... as a fraction. Let's call x that fraction:

x = 0.5333

Then,

10x = 5.3333

100x = 53.333

100x - 10x = 53.333  -  5.3333

90x = 48

x = 48/90

dividing numerator and denominator by 6, we get:

(48/6) / (90/6) =8/15

Answer:

The simplified fraction is 1/8

The correct option is;

StartFraction 8 Over 15 EndFraction

Step-by-step explanation:

Here, we are given the simplified fraction result as [tex]0.5\bar3[/tex] which is the same as [tex]\frac{1}{2}+\frac{1}{30} =\frac{15+1}{30} =\frac{16}{30} =\frac{8}{15}[/tex]0.53333......

Therefore, to find the simplified fraction, we split the resultant value into the component parts as follows;

[tex]0.5\bar3[/tex] = 0.5 + 0.0[tex]\bar3[/tex]

We observe that the above equation is the same as [tex]\frac{1}{2}+\frac{1}{30}[/tex]

Hence, we simplify  [tex]\frac{1}{2}+\frac{1}{30}[/tex] to arrive at

Therefore, the simplified fraction = 1/8.

Answer:

100,000,000

Step-by-step explanation:

Answer:

[tex]10^{1000000}[/tex]

Step-by-step explanation:

Answer:

$26.66

Step-by-step explanation:

12.95+13.71 =26.66

Plzz. Brainliest

Answer:0.08 kilograms

Step-by-step explanation:

Answer:

approximately 3.24 times greater

Step-by-step explanation:

The formula for the area of a circle of radius r is A = πr².  Because we are given the diameter here (not the radius), we substitute d/2 for r in the above formula, obtaining:

A = π(d/2)²

Case 1:  A = π [18 in / 2]² = π(9 in)² = 81π in²

Case 2:  A = π[10 in/2]² =  π[5 in]² = 25π in²

Dividing 81π in² by 25π in² gives us the desired result:

The area of the larger pizza is 81/25 times the area of the smaller one, or approximately 3.24 times greater.

Answer:

(x + 4)² - 45

Step-by-step explanation:

Given

x² + 8x - 29

To complete the square

add/ subtract ( half the coefficient of the x- term)² to x² + 8x

f(x) = x² + 2(4)x + 16 - 16 - 29

     = (x + 4)² - 45

The resulting function by completing the square is f(x) = (x+ 4)²  - 45

Given the function

f(x) = x² + 8x - 29

The function can also be grouped like this:

f(x) = (x² + 8x) - 29

Completing the square of the function in parenthesis

f(x) = (x² + 8x) - 29

To do that, we will add the square of the half of the coefficient of x:

Coefficient of x = 8

half of Coefficient of x = 8/2 = 4

Squaring the result = 4² = 16

The function will then become:

f(x) = (x² + 8x + 16 - 16) - 29

f(x) = (x² + 8x + 16) - 16 - 29

f(x) = (x² + 8x + 16) - 45

Factorizing the function in bracket:

f(x) = (x+ 4)²  - 45

Hence the resulting function by completing the square is f(x) = (x+ 4)²  - 45

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Answer:

y = -3/7x + 3

Step-by-step explanation:

Use the slope formula to find the slope which is -3/7

Then use one of the pairs of points and plug in the x and y values along with the slope to find b

Answer:

D

Step-by-step explanation:

Answer:

14 shirts

Step-by-step explanation:

11-4= 7

7 times 2 = 14

Answer:

14 shirts

Step-by-step explanation:

Four less of eleven is 7. 7 is one half of the number of shirts Maria brought, then you do 7+7=14. Hope this helps!

Answer:

The answer is c. 242 ft^2

Step-by-step explanation:

i JUST TOOK THE TEST AND THIS WAS THE ANSWER!

Answer:

We must calculate the length of the "slope"

Hypotenuse^2 = 11^2 + 4^2

Hypotenuse^2 = 121 + 16

Hypotenuse^2 = 137

Hypotenuse = 11.7

Area of "slope" surface = 11.7 * 6 = 70.2 sq feet

Area of Base = 6 *4 = 24 sq feet

Area of rear side = 6 * 11 = 66 sq feet

Area of both sides = 44 sq feet

Total area = 70.2 + 24 + 66 + 44 = I get 204.2 which is NOT any of the choices.  

****************************************************

Geez, I recalculated everything and still got the same answer.  Any idea where I went wrong?

Step-by-step explanation:

Answer:

C. 50

Step-by-step explanation: The measure of angle RWL is 50°. It is an acute angle.

Hopefully yo had this question.

Answer:

C

Step-by-step explanation:

The formula for the volume of a rectangular prism is lwh. In this case, 3*5*6=90 cubic units, or option C. Hope this helps!

The area of a circle with a radius of 20 inches is 400π square inches, which is approximately 1256.64 square inches.

The formula for finding the area of a circle is A = πr², where A is the area and r is the radius of the circle.

Given that the radius of the circle is 20 inches, we can substitute this value into the formula to find the area.

So, the area of the circle with a radius of 20 inches is A = π(20 inches)² = 400π square inches, which is approximately 1256.64 square inches.

Answer:

1/4

Step-by-step explanation:

Answer:

1/4

Step-by-step explanation:

C) 2 seconds

Pennfoster/ James Madison

The ball will take 6 seconds to hit the ground.

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. LHS = RHS is a common mathematical formula.

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:

f(t) = -1/2t² + 2t + 6

Now, if ball hit the ground then f(t)=0

0 = -1/2t² + 2t + 6

-t² + 4t + 12=0

t² - 4t -12 = 0

t² - 6t + 2t -12 = 0

t(t- 6) + 2( t- 6)= 0

(t- 6) (t+ 2)=0

t= 6, -2.

Hence, the ball will take 6 seconds.

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Answer:

1. B     2. B

Step-by-step explanation:

1. The formula for circumference is C= pi times diameter

Radius is half of diameter, so you'd multiply 14 times 2 which gives you 28. Since it's asking for it in pi, it'll be 28 pi.

2. I think instead of circumference, it's asking for area because if it was asking for circumference the answer would have been 6.6 pi, but that answer isn't there. So if it's asking for area, the formula is A= pi(r²) They gave the diameter instead. Remember, the radius is half of the diameter, so in order to get the radius, you'd divide 6.6 by 2 and get 3.3. Then, multiply 3.3 with the number itself, and you'll get 10.89.

Hope this helps!

1. What is the circumference of the given circle in terms of pi? radius= 14 in.

A. 14 pi in

B. 28 pi in

C 42 pi in

D 196 pi in

2. What is the circumference in terms of pi? Diameter= 6.6m.

A.16.2 pi m^2

B. 10.89 pi m^2

C. 21.78 pi m^2

D. 43.56 pi m^2

these would be both B

B. 28 pi in

B. 10.89 pi m^2

Answer:

y = 5

Step-by-step explanation:

Let y = mx + b (1)  is the equation of a line we need to find

As we know, it is parallel to y= -7 (with the slope is 0)

However, the slopes of parallel lines are equal

=> the slope of (1) is 0

<=> y = b

And  that passes through the point (7,5), we have:

5 = b

=> the equation of a line as the answer of this problem is:

y = 5

Hope it will find you well.

Answer:

[tex] -3 +2y \leq 4x[/tex]

[tex] 2y \leq 4x+3[/tex]

[tex] y \leq 2x + \frac{3}{2}[/tex]

And that's different from the claim of the student that:

[tex] y \geq 2x +\frac{3}{2}[/tex]

The error of the student is that he/she changes the sign of the inequality from [tex] \leq[/tex] to [tex]\geq[/tex] and that's not possible since we don't multiply both sides of the equation by -1

Step-by-step explanation:

For this case we have the following inequality:

[tex] -3 +2y \leq 4x[/tex]

We want to rewrite the last expression with y in the left and x in the right so we can begin adding 3 in both sides of the inequality and we got:

[tex] 2y \leq 4x+3[/tex]

Now we can divide both sides of the inequality by 2 and we got:

[tex] y \leq 2x + \frac{3}{2}[/tex]

And that's different from the claim of the student that:

[tex] y \geq 2x +\frac{3}{2}[/tex]

The error of the student is that he/she changes the sign of the inequality from [tex] \leq[/tex] to [tex]\geq[/tex] and that's not possible since we don't multiply both sides of the equation by -1

Answer:

A 100% sale would be the greatest discount

Step-by-step explanation:

100% off would cost $0. The highest percent off would be the greatest or the highest amount of dollars off.

if this helped please hit thanks button + rate <3

Answer:

Original price reduced by 30%.