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3 years ago

7

Please answer number 20 with work!

2 answers:

JulsSmile [24]3 years ago

7 0

Answer:

A

x/64 = 36/36

this is the answer

asambeis [7]3 years ago

7 0

Answer:

C

Step-by-step explanation:

when doing proportions you have to align your fractions accordingly.

we are putting x over 64 which means that small triangle in the top and big triangle in the bottom. On the other side its going to be 36 because of the small triangle's side and in the bottom we put the big triangle's side which will be 72 because 36+36=72

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Shtirlitz [24]

Answer:

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

A rocket is shot straight into the air at an initial velocity of 70 feet/second.

DanielleElmas [232]

Answer: 245 feet

Step-by-step explanation:

Given: The height of the rocket after t seconds is represented by the formula:

$h=70t-5t^2$

$\dfrac{dh}{dt}=70-10t$ [Differentiate both sides w.r.t. t]

Put

$\dfrac{dh}{dt}=0\\\\\Rightarrow\ 70-10t=0\\\\\Rightarrow\ t=\dfrac{70}{10}=7$

Also, $\dfrac{d^2h}{dt^2}=-10$ i.e. height is maximum at t=7.

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3 0

3 years ago

The question is: how many people averaged fewer than 4,000 steps each day? The options are

Natalka [10]

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3 years ago

Read 2 more answers

Make x the subject<br><br> y = 4(3x-5)/9

attashe74 [19]

Answer:

3/4y +5/3 = x

Step-by-step explanation:

y = 4(3x-5)/9

Multiply each side by 9

9y = 4(3x-5)/9*9

9y = 4(3x-5)

Divide each side by 4

9/4 y = 4/4 (3x-5)

9/4y = 3x-5

Add 5 to each side

9/4y +5 = 3x-5+5

9/4y +5 = 3x

Divide by 3

9/4 y *1/3 +5/3 = 3x/3

3/4y +5/3 = x

8 0

3 years ago