Answer:
Hello, my name is 1frogaroni feel free to ask any questions about algebra such as equations you don't understand. I will try my best to help you out with your question :)
Step-by-step explanation:
Oh and welcome to brainly where the community will be glad to help you!
Answer:
13x + 7 + 4x + 15 = 90
17x + 22 = 90
17x = 68
x = 4
4(4) + 15= 16 + 15= 31
13(4) + 7 = 52 + 7 = 59
Step-by-step explanation:
hi <3
so basically, there are a few rules you need to know of and i'll describe those first.
angles in a triangle sum to 180 degrees. AND
angles on a straight line sum to 180 degrees
so, by using the first rule, we can calculate the missing angle within the triangle:
180 - (52 + 90) = 38
now, we can use the second rule to find x
180 - 38 = 142
x = 142 degrees
hope this helps :)
<h3>Radius of circle is 2.5 feet</h3><h3>Diameter of circle is 5 feet</h3>
<em><u>Solution:</u></em>
Given that,
Circumference of circle = 15.7 feet
<em><u>The formula for the circumference of a circle is:</u></em>

Where, "r" is the radius of circle
Given that,
C = 15.7 feet
Therefore,

Thus radius of circle is 2.5 feet
Also,
Diameter = 2( radius )
Diameter = 2 (2.5) = 5
Thus diameter of circle is 5 feet
Answer:
Please, see the attached files.
Step-by-step explanation:
Please, see the attached files.
Thanks.