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Alenkinab [10]
2 years ago
10

BRAINLIEST PLUS 30 POINTS

Mathematics
1 answer:
aleksklad [387]2 years ago
7 0

umm I think it =(m)(x+−x)

=(m)(x)+(m)(−x)

=mx−mx

=0

hope it's right and you can download mathpapa

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Write y+4=2/3(x+7) ...?
iragen [17]
<span>y+4=2/3(x+7)

</span><span>Multiplying both sides by the denominator which is 3:
</span>3(y+4) = 3(2/3) * (x+7)
 3y+12=2x+14

Subtract 3y:
 12 = 2x - 3y + 14

Subtract 14
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8 0
3 years ago
Try it!
Aleksandr-060686 [28]

Answer:

<u><em>Answer is below</em></u>

Step-by-step explanation:

4 0
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.

Maximum height = h=70(7)-5(7)^2 = 490 - 245= 245\text{ feet}

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3 0
3 years ago
Jenna flips to pennies 105 times how many times can she expect both coins to come up heads
seropon [69]
53 because there is only 2 sides of a penny so 105 divided by 2 is 52.5 
8 0
3 years ago
Read 2 more answers
Please need help will give brainliest please.<br> A=81.6km<br> B=1404.1km<br> C=66.5km<br> D=16.6 km
Nezavi [6.7K]

Answer:

My answer is 57.776

Step-by-step explanation:

Diameter= 9.2 km

3.14×2 = 6.28

6.28× 9.2

= 57.776

Dunno about rounding it to tenths cause that would be 60

6 0
3 years ago
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