3 years ago

Need help pls help correct answer only

Mathematics

1 answer:

Elodia [21]3 years ago

4 0

C .583 repeating use calculator

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PLZ HELP

Alex

Answer:

The correct option is C ) 109.5°

Therefore,

$m\angle E=109.5\°$

Step-by-step explanation:

Given:

In Triangle DEF

d = 10

e = 18

f = 12

To Find

angle E = ?

Solution:

In Triangle DEF , Cosine Rule says

$\cos E=\dfrac{f^{2}+d^{2}-e^{2}}{2fd}$

Substituting the values we get

$\cos E=\dfrac{12^{2}+10^{2}-18^{2}}{2\times 12\times 10}$

$\cos E=\dfrac{-80}{240}=-\dfrac{1}{3}$

Therefore,

$\angle E=\cos^{-1}(-0.3333)$

$m\angle E=109.5\°$ ............As it is in Second Quadrant

Therefore,

$m\angle E=109.5\°$

4 0

4 years ago

In the movie hidden figures what does the cop do to or For the three ladies

antoniya [11.8K]

Answer:

the cop offers them a police escort all the way to Langley

Step-by-step explanation:

having a car full of african americans in a car chase a police all the way too Langley.

3 0

3 years ago

There are 5 granola bars. Three friends want to share them evenly. How much would each friend get? show your answer in two diffe

Andrew [12]

The two friends would both get 2 and 1/2 hope that helps

4 0

3 years ago

Out of the last 50 guests, only one of them break coupon for free admission to the carnival. if there are 1500 guests expected t

ryzh [129]

1/50 = x/1500

Cross multiply:

50x = 1500(1)
50x = 1500
x = 1500/50
x = 30 people

Therefore, the answer is b as 30 people will receive free admissions.

6 0

4 years ago

Ac is tangent to circle at point c what is the measure of oac?

Norma-Jean [14]

Answer: 27 degrees

Step-by-step explanation: 180-90 because its perpendicular -63=27

3 0

3 years ago