2 years ago

−7+3(−4e−3) equivalent expression

Mathematics

1 answer:

Helen [10]2 years ago

8 0

48.61938 if your awnser needs to be rounded up do so to get the correct awnser

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andrew-mc [135]

Data:
r (radius) = 14 m
h (height) = 6 m
v (volume) = ?

Formula:
$V = \pi *r^2*h$

Solving:
$V = \pi *r^2*h$
$V = \pi *14^2*6$
$V = \pi *196*6$
$\boxed{\boxed{V = 1176 \pi\:m^3}}\end{array}}\qquad\quad\checkmark$

4 0

3 years ago

Given that Triangle ABC such that<br>a=8cm, b=7cm and c=9cm<br>tem and c= 9cm find Cos B

charle [14.2K]

Answer:

We use cosine rule also called cosine law which states

c^2=a^2+b^2-2abcosC

given

a=8cm, b=7cm, c=9cm cos C?

9^2=8^+7^2-2*8*7 cos C

expand

81=64+49-112 cos C

like terms together

81-113=-112 cos C

-32=-112cos C

multiply both sides by -1

32=112cos C

divide both sides by 112

32/112=cos C

cosC=0.2857

find cos inverse of 0.2857

angle C= 73.40

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3 years ago

Please help me

madreJ [45]

143.44 degrees
Hope this helps (:

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1 year ago

Find the LCM and HCF of 540 and 792.

AURORKA [14]

Your LCM is 11880 , and your HCF is 36

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2 years ago

In circle Z, what is m∠2? 70° 133° 140° 147°

sattari [20]

Answer:

140

Step-by-step explanation:

4 0

2 years ago

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