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KiRa [710]
2 years ago
12

Complete the conversion using π = 3.14.

Mathematics
1 answer:
Artist 52 [7]2 years ago
8 0

Answer:

21.78 degrees

Step-by-step explanation:

.38 radians  *  180 degrees / pi radians =

.38 * 180/3.14 = 21.78 degrees

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WILL REWARD THE BRAINLIEST
Gnom [1K]

Answers and Step-by-step explanations:

9-18.

a) All the angles of a triangle add up to 180, by definition. So, we can write the expression: 30 + 115 + x = 180.

Then, we can just solve for x by subtracting 30 and 115 from both sides:

x = 180 - 115 - 30 = 35 degrees

b) Again all three angles should add up to 180, so:

x + x + x = 180  ⇒  3x = 180  ⇒  x = 180/3 = 60 degrees

9-19.

a) These angles add up to 180:

2x + x + 30 = 180  ⇒  3x + 30 = 180  ⇒  3x = 150  ⇒  x = 50

2x = 50 * 2 = 100

The missing angles are 100 degrees and 50 degrees.

b) Again, these add up to 180:

x + 10 + x + 90 = 180  ⇒  2x + 100 = 180  ⇒  2x = 80  ⇒  x = 40

x + 10 = 40 + 10 = 50

The missing angles are 50 degrees and 40 degrees.

Hope this helps!

7 0
3 years ago
Read 2 more answers
Plss help i beg you!​
frosja888 [35]

Answer:

  • 51

Step-by-step explanation:

<u>Given expression:</u>

  • 3(x + y) +2x² + (1 + y)²

<u>Find its value when x = 4 and y = 1, substitute:</u>

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7 0
2 years ago
Simplify <br><img src="https://tex.z-dn.net/?f=4%20%2B%20%20%5Cfrac%7B3%7D%7B7%7Dx%20-%202%20-%20%20%5Cfrac%7B2%7D%7B7%7Dx%20%20
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4 + \frac{3}{7}x - 2 - \frac{2}{7}x\\\\\text{combine like terms}\\\\\left(\dfrac{3}{7}x-\dfrac{2}{7}x\right)+(4-2)=\dfrac{3-2}{7}x+2=\boxed{\dfrac{1}{7}x+2}

6 0
3 years ago
Read 2 more answers
Eth enlarged the triangle below by a scale of 5.
levacccp [35]

Answer:

She should have multiplied one half (4)(3.5) by 5 squared.

Step-by-step explanation:

We are given that

Base of triangle=b=4 cm

Height of triangle=h=3.5 cm

Area of triangle=\frac{1}{2}bh=\frac{1}{2}(4)(3.5) cm^2

After enlarged

Scale factor=5

New base of enlarged triangle=b'=4(5) cm

Height of enlarged triangle=h'=3.5(5) cm

Area of enlarged triangle=\frac{1}{2}4(5)(3.5\times 5)=\frac{1}{2}(4)(3.5)(5^2) cm^2

But Beth wrote

Area of enlarged triangle=\frac{1}{2}(4)(3.5)(5)=35 cm^2

She should have multiplied one half (4)(3.5) by 5 squared.

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3 years ago
Write the polynomial in standard form. 2z^4-9z-3z^2
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i do not have the answer but i have a website that will help you, its called symbolab and it will change ur life

5 0
3 years ago
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