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photoshop1234 [79]
3 years ago
9

Which expression converts 8 radians to degrees?

Mathematics
2 answers:
Yanka [14]3 years ago
6 0

Answer:

The 4th one down

Step-by-step explanation:

damaskus [11]3 years ago
5 0

Answer:

D

Step-by-step explanation:

To convert from radians to degrees use the formula:180°/π

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Maths help PLZZ!!!
Slav-nsk [51]

Triangle ABC is an isosceles triangle.

Solution:

Given data:

∠ABC = 70° and ∠ACD = 55°

<em>If two parallel lines are cut by a transversal, then alternate interior angles are congruent.</em>

m∠BAC = m∠ACD

m∠BAC = 55°

<em>Sum of the angles in a straight line add up to 180°.</em>

m∠ACD + m∠ACB + m∠ABC = 180°

55° + m∠ACB + 70° = 180°

m∠ACB + 125° = 180°

Subtract 125° from both sides, we get

m∠ACB = 55°

In triangle ABC,

∠BAC = 55° and ∠ACB = 55°

∠BAC = ∠ACB

Two angles in the triangle are equal.

Therefor triangle ABC is an isosceles triangle.

6 0
3 years ago
Santino traveled 168 miles in 2.5 hours to visit the Kalahari Water Park. What is the unit rate, in miles per hour, that Santino
Nata [24]

Answer:

67.2mph

Step-by-step explanation: you do 168 divide by 2.5

6 0
2 years ago
Rewrite the equation below so that it does not have fractions.
rjkz [21]
.75x+4=.75

hope this helps!
4 0
3 years ago
Read 2 more answers
B
Alenkinab [10]

Answers:  

hypotenuse = 20 feet

longer leg = 16 feet

======================================================

Explanation:

c = x = length of the hypotenuse

a = x-4 = length of one of the legs

b = 12 = length of the other leg

Use the pythagorean theorem

a^2 + b^2 = c^2

12^2 + (x-4)^2 = (x)^2

144 + x^2 - 8x + 16 = x^2

144 - 8x + 16 = 0 .... the x^2 terms cancel

160-8x = 0

160 = 8x

8x = 160

x = 160/8

x = 20 is the hypotenuse

x-4 = 20-4 = 16 is the longer leg

--------

Check:

12^2+16^2 = 144+256 = 400

20^2 = 400

Since 12^2+16^2 = 20^2 is true, this means we have a right triangle with legs of 12 and 16, while the hypotenuse is 20. The answer is confirmed.

6 0
2 years ago
Combine like terms in the following equation:<br> 18 – 5W + 7w - 4 = 28
pishuonlain [190]

Answer:

7

Step-by-step explanation:

Step 1:

18 - 5w + 7w - 4 = 28

Step 2:

14 + 2w = 28

Step 3:

2w = 14

Answer:

w = 7

Hope This Helps :)

6 0
3 years ago
Read 2 more answers
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