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3 years ago

Solve the formula for h. Surface area of a cylinder: S=2πr2+2πrh

Mathematics

1 answer:

arlik [135]3 years ago

6 0

Switch equation position, h=s-2*pi*r^2/2pir

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(a) Solve 7( k - 3 ) = 3k - 5

babymother [125]

A) $7(k-3)=3k-5\\ 7k-21=3k-5\\ 7k-3k=-5+21\\ 4k=16\\ k=\frac { 16 }{ 4 } \\ k=4$

b) $(2x+3)(x-8)\\ 2{ x }^{ 2 }-16x+3x-24\\ 2{ x }^{ 2 }-13x-24$

c) $\frac { 7-3f }{ 4 } =2\\ 7-3f=4\cdot 2\\ 7-3f=8\\ -3f=8-7\\ -3f=1\\ f=-\frac { 1 }{ 3 }$

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4 years ago

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Need help please not sure what the answer is

Pachacha [2.7K]

$\dfrac{-8a^8b^{-2}}{10a^{-4} b^{-10}}$

$= \dfrac{-8}{10} a^8b^{-2} a^{4} b^{10}$

$= -\dfrac{4}{5} a^{12}b^{8}$

Answer: first choice

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3 years ago

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Find the product. 87.8 x 2.8 (

bearhunter [10]

Answer:

245.84

Step-by-step explanation:

i hope this helps

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3 years ago

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What is f?<br> To 2 decimal places

Firdavs [7]

Using TOA CAH SOH

You are given an angle and a length, in this case the lenth is adj to the angle.

∴ use TOA
tan(32) = f/18
f = 18tan(32)
f = 11.24764 units
f ≈ 11.25 units (2d.p.)

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3 years ago

Help please hurry I need to graph

aksik [14]

Answer:

Brainiest would be appreciated

High Hopes^^

Barry-

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3 years ago

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