3 years ago

Does the size of parachute affect the speed and why

Mathematics

1 answer:

Kryger [21]3 years ago

6 0

Yes it does , more mass area = less space

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The length of the rectangle below is (2x-3) and the width is (x+7). Find the area of the rectangle in terms of x.

Alex777 [14]

Answer:

area = 2x² - 17x - 21

Step-by-step explanation:

Area of the rectangle is:

area = (width*length)

area = (x+7)*(2x-3)

= x*2x + x*-3 + 7*2x + 7*-3

= 2x² - 3x - 14x - 21

= 2x² - 17x - 21

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3 years ago

find the sum of a 9-term geometric sequence when the first term is 4 and the last term is 1,024 and select the correct answer be

olasank [31]

Hello,

$u_{1} =4\\
 u_{2} =4*q\\
 u_{3} =4*q^2\\
...\\

 u_{9} =4*q^8\\\\
==\textgreater\ 4*q^8=1024\\
==\textgreater\ q^8=256\\
==\textgreater\ q=2\mbox{( and there is a problem in the question) } \ or \ q=-2\\
if\ q=2 \ then\ \sum_{i=0}^{8}\ 4*(2)^i= 4*\dfrac{1-2^9}{1-2} =2044\\

if \ q=-2 \ then\ \sum_{i=0}^{8}\ 4*(-2)^i= 4*\dfrac{1-(-2)^9}{1+2} =684\\



$

Answer B (but see the problem)

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3 years ago

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If the subtrahend is 9 and the difference is 8 what is the minuend

enyata [817]

The subtrahend is 9 and the difference is 8 and the minuend is 17

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3 years ago

The distance a bike travels varies directly as the amount of time the bike has been ridden. Angela is riding her bike. If she tr

Levart [38]

Answer:

420 miles

Step-by-step explanation:

60 ×7=420

thank

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3 years ago

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HELP PLEASE ASAP!! WILL GIVE BRAINLIEST ❤️

Wewaii [24]

Answer:

slope=4

Step-by-step explanation:

m=y2-y1/x2-x1

4-(-4)=8

5-3=2

8/2=4

hope this helps :3

if it did pls mark brainliest

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3 years ago