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givi [52]
3 years ago
12

Find the value of x. ​

Mathematics
1 answer:
andrezito [222]3 years ago
5 0

Answer:

d. 16 feet

Step-by-step explanation:

x² + 12² = 20²

x² + 144 = 400

x² + 144 - 144 = 400 - 144

x² = 256

√x² = √256

x = 16

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One angle of a triangle has a measure of 36°. The measure of the third angle is 28° less than 3 times the measure of the second
Alex_Xolod [135]

Answer:

  1. Define your variable and write your equation:  36 + b + (3b-28) = 180°.
  2. measure of the second angle: 43°.
  3. measure of the third angle: 101°

Step-by-step explanation:

a = 36

c = 3b - 28

a + b + c = 180°

a = measure of the first angle

b = measure of the second angle

c = measure of the third angle

then:

1)  36 + b + (3b-28) = 180   ⇒ )Define your variable. Write your equation and solve)

b + 3b + 36 - 28 = 180

4b + 8 = 180

4b = 180 - 8

4b = 172

b = 172/4

2)   b = 43°        ⇒   measure of the second angle

c = 3b - 28

c = 3*43 - 28

c = 129 - 28

3) c = 101°      ⇒   measure of the third angle

Check:

36° + 43° + 101° = 180°

8 0
3 years ago
When your class visited the aquarium, the costs totaled the maximum
yanalaym [24]

Answer:

I think it's A

Step-by-step explanation:

Please correct me if I'm wrong

7 0
3 years ago
Which point represents 3.9?
s2008m [1.1K]

Answer:

What do you mean there is not a graph...do you have a  picture?

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
The diameter of a circle is 15 ft. Find its circumference in terms of \piπ.
Paladinen [302]
C= 2pi
15= diameter. Radius= 15/2. R= 7.5
C= 2 times pi times 7.2
C=15 pi
C= 47.1
7 0
3 years ago
It was 55 degrees fahrenheit outside until the temperature increased 20 degrees fahrenheit. Which number is the addictive invers
ValentinkaMS [17]
Try using this
https://www.almanac.com/content/temperature-conversion
3 0
3 years ago
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