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2 years ago

5

A bouncy ball is dropped such that the height of its first bounce is 3.25 feet and each successive bounce is 71% of the previous

bounce's height. What would be the height of the 7th bounce of the ball? Round to the nearest tenth (if necessary).

1 answer:

grigory [225]2 years ago

8 0

Answer:

i do not know bro for real this aint no game at all

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Cos^2(2theta)+ 2cos(2theta)+1=0

Tema [17]

Answer:

θ = π n + π/2 for n element Z

Step-by-step explanation:

Solve for θ:

1 + 2 cos(2 θ) + cos^2(2 θ) = 0

Write the left hand side as a square:

(cos(2 θ) + 1)^2 = 0

Take the square root of both sides:

cos(2 θ) + 1 = 0

Subtract 1 from both sides:

cos(2 θ) = -1

Take the inverse cosine of both sides:

2 θ = 2 π n + π for n element Z

Divide both sides by 2:

Answer: θ = π n + π/2 for n element Z

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3 years ago

Repeated addition:<br> [ 1,3] + [1,3]+[1,3]= [a,b]<br> A=? B=?

sammy [17]

Answer:

I THINK a=3 b=9

Step-by-step explanation:

4 0

3 years ago

HELP ME WITH 61 <br>I'm freaking out!!!!!!!!!!!!<br>I don't know what to do

Brut [27]

4.25+1.25*m, 5.75+0.75*m
4.25+5.75=10 and 1.25+0.75 = 2 therefore the two expressions are 2m+10
0.5m-1.5 : 4.25+1.25+m-5.75+0.75*m =0.5m-1.5 ( I'm quite sure about this one but I can't think of another answer but this )

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3 years ago

For brainiest:):):):)::):):):)

scZoUnD [109]

Answer:

The unit rate is accurately $\frac{1}{4}$ (km/minute)

Step-by-step explanation:

(1,1/4) means that the vehicle traveled 1/4 km within 1 minute.

The unit rate for this problem is also known as the speed of the vehicle.

So to find the speed, you need to use distance over time.

---> Unit rate: $\frac{1}{4}\\$ / 1 = $\frac{1}{4}$ (km/minute)

(2,1/2) means that the vehicle traveled 1/2 km within 2 minutes.

Same process:

---> Unit rate: $\frac{1}{2}$ / 2 =

Because of this, the unit rate is accurately $\frac{1}{4}$ (km/minute)

8 0

3 years ago

The ratio of salamanders to frogs is 6 to 7. If there are 9 salamanders, how many frogs are there?

ipn [44]

Answer

10

Step-by-step explanation:

salamander:frog

6:7

start by setting up the ratios as fractions and using <em>x</em> as the variable.

$\frac{6}{7}$ = $\frac{9}{x}$

next cross multiply.

6x=63

x=10 i believe

8 0

3 years ago