!!!!!Please help I'm so stuck!!!!!

Suppose you drop a tennis ball from a height of 7ft. After the ball hits the floor, it rebounds to 80% of its previous height.

How many bounces will it take for the ball to rebound to a height of less than 1 foot?
A) 11
B) 9
C) 10
D) 12​

Answer:

61

Step-by-step explanation:

Answer:

Step-by-step explanation:

12)

we are told that ∠ABD = 61°

then we also know that ∠ADB = 61° b/c there are the equal legs of an isosceles triangle.

and we know by inspection that the ΔBCD is identical to ΔABD so it also has 61° angles so

∠ABC = 61 + 61 =122°

:)

Answer:

6in

Step-by-step explanation:

surface area= perimeter x height + 2b

s= pxh+2b

example: 18(8)+2(12)

explain:  18 is the perimeter and 8 is the height then you have to add the base times 2

9514 1404 393

Answer:

  10

Step-by-step explanation:

The distance formula is useful.

  d = √((x2 -x1)^2 +(y2 -y1)^2)

  d = √((7 -1)^2 +(12 -4)^2) = √(6^2 +8^2) = √(36 +64) = √100

  d = 10

The distance between P and Q is 10.

_____

Additional comment

You may recognize the run : rise ratio of 6 : 8 = 3 : 4. This suggests a 3-4-5 right triangle with a scale factor of 2. If you're familiar with that Pythagorean triple, you can write down the answer as soon as you see the rise and run numbers.

Answer:

the answer is 23.........

Answer:

17/29 or 58.6%

Step-by-step explanation:

P(G or R) = 8/29 + 9/29 = 17/29

Answer:

step 1: x+50+4x=90

the angle of a right-angled triangle is 90 degrees, therefore if we add everything together ,we could work out what x is.

step 2: x+50+4x=90

                  x+4x=50

                      5x=50

                        x=10

then you solve the equation, x is 10

Answer: 338 Sq. Ft.

Step-by-step explanation:

26 is the identified length, half of 26 is 13 therefor 13 is the width. Length x Width gives you the area, 26 x 13 gives you 338 Sq. Ft.

Answer:

(0,0)

Step-by-step explanation:

The midpoint is (0,0) because as you can see in the graph the middle would be (0,0). However, if point A moved even one step further or closer the midpoint will also shift

Answer:

d $258.50

Step-by-step explanation:

hope it helps

Answer:

b= 2

Step-by-step explanation:

x=2

y=-2

slope= -2

y=mx+b

-2= -2(2) + b

-2= -4 +b

-2+4= b

2= b

Answer:

2=b through the slope -2=-2(2)+b

Answer:

5/11, 20/11

Step-by-step explanation:

a − 3b = −5

-3b = -a - 5

b = 1/3a + 5/3

3a + 2(1/3a + 5/3) = 5

3a + 2/3a + 10/3 = 5

11/3a + 10/3 = 5

11/3a = 5/3

a = 5/11

a - 3b = -5

5/11 - 3b = -5

-3b = -60/11

b = 20/11

Resposta:

180

Espero ter ajudado

Answer:

Your answer is 346.36059

Step-by-step explanation:

A = pi*r²

A = pi * 10.5²

A = pi * 110.25

A = 346.36059

We can write the the area of the circle as 110.25π square centimeter.

Area is a collection of two - dimensional points enclosed by a single dimensional line. Mathematically, we can write -

V = ∫∫F(x, y) dx dy

Given is a circle whose diameter is 21 cm​.

It is asked to find the area of a circle whose diameter is 21 cm​.

It is given that the diameter of the circle is -

d = 21 cm

r = d/2 = 21/2

r = 10.5 cm

We know that the area of the circle as -

Area = πr²

Area = π x 10.5 x 10.5

Area = 110.25π

So, it can be concluded that the area of the circle is 110.25π square centimeter.

Therefore, we can write the the area of the circle as 110.25π square centimeter.

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C. 700 units.

The formula for the surface area of a rectangular prism is: 2 ((Width × Length) + (Height × Length) + (Height × Width))

(14 × 12) + (7 × 12) + (7 × 14)

168 + 84 + 98 = 350

Now do 350 × 2 = 700

700 units squared.

Answer:

Step-by-step explanation:

Answer:

[tex]\sf \dfrac{1}{21}[/tex]

Step-by-step explanation:

[tex]\textsf{To calculate}-\dfrac{2}{7}+\dfrac{1}{3}, \: \textsf{ first make the denominators the same}.[/tex]

[tex]\textsf{Adjust the fractions based on their lowest common multiplier}:[/tex]

[tex]\implies -\dfrac{2}{7} \cdot \dfrac{3}{3} + \dfrac{1}{3} \cdot \dfrac{7}{7}[/tex]

[tex]\implies -\dfrac{2 \cdot 3}{7 \cdot 3} + \dfrac{1 \cdot 7}{3 \cdot 7}[/tex]

[tex]\implies -\dfrac{6}{21}+\dfrac{7}{21}[/tex]

[tex]\textsf{Apply the fraction rule} \quad \dfrac{a}{c}+\dfrac{b}{c}=\dfrac{a+b}{c}:[/tex]

[tex]\implies \dfrac{-6+7}{21}[/tex]

[tex]\textsf{Add the numbers of the numerator}:[/tex]

[tex]\implies \dfrac{1}{21}[/tex]

Learn more about fractions here:

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Answer:

3a. yes

3b. y= 75x

3c. 600 mi

3d. 10 inches

Step-by-step explanation:

3a: if you divide the y by the x, you'd get 75 everytime, meaning it's proportional.

3b: y would equal the amount of inches multiplied by 75, so y=75x

3c: you can use the equation and substitute the x for 8, so y=75(8), giving you 600 miles

3d: you can also use the equation in reverse, if the actual miles is 750, then this is your y, so it would look like 750=75x and to solve you'd divide, 750/75, giving you 10 inches

The difference in the interest that the account will have earned at the end of 10 years is of:

D. $3.01.

The amount of interest earned, in compound interest, after t years, is given by:

[tex]I(t) = P\left(1 + \frac{r}{n}\right)^{nt} - P[/tex]

In which the variables are listed as follows:

In the context of this problem, these parameters are given as follows:

P = 250, r = 0.016, n = 12, t = 10.

Hence the interest earned by account 1 is:

[tex]I(10) = 250\left(1 + \frac{0.016}{12}\right)^{12 \times 10} - 250 = 43.35[/tex]

For simple interest, the amount of interest earned is:

I(t) = Prt.

Hence:

I(10) = 250 x 0.016 x 10 = 40.

Hence the difference is:

43.35 - 40 = $3.35.

Which is closest to option D.

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Answer: The answer is number 4

Step-by-step explanation:

The answer is the one in the right up, the first one.

Step-by-step explanation:

R' = (-2,0)

E' = (-2,2)

F' = (4,4)

Answer: (2,4)

Step-by-step explanation: The coordinates are 2,4

Step-by-step explanation:

but you have to add or divide

Answer:

56.1

Step-by-step explanation:

Answer:

solve the equation by rewriting in exponential form using the definition of a logarithm and simplifying.

Exact Form:

x=  1/10000

Decimal form:

x=0.0001

Answer:

This really depends on the situation, and many variables. Is there a specific moment? Multiple buttons? Would you mind giving more context or is that it?

Answer:

PENDEJO ME LA PELA GONORREA BBO HPTA

Answer:

YESSSSSSSSSSSSSSSSSS

i mean theres a ton of us we can over power them anytime!

Answer:

315

Step-by-step explanation:

819 miles/13 hours = 63 miles per hour

63 x 5 = 315