Answer:
5
Step-by-step explanation:
<h3>Given</h3>
<u>In and AP</u>
<h3>Solution</h3>
<u>Formula for the terms of AP:</u>
<u>The difference of terms:</u>
- a + 3d - (a - d) = 13 - 3
- 2d = 10
- d = 5
Answer:
7
Step-by-step explanation:
2v ÷ e + 3
we want to find the value of the expression when v = 10 and e = 5
to do so we substitute the values into the expression
2v ÷ e + 3
==> substitute 10 for v and 5 for e
2(10) ÷ 5 + 3
We now evaluate using bpemdas
==> multiply 2 and 10
20 ÷ 5 + 3
==> divide 20 by 5
4 + 3
==> add 4 and 3
= 7
Answer:
Step-by-step explanation:
This is the isosceles triangle. Therefore, the angles at the base are congruent.
We know that the sum of the measures of the angles in a triangle is 180°.
Therefore we have the equation:
![38^o+x^o+x^o=180^o](https://tex.z-dn.net/?f=38%5Eo%2Bx%5Eo%2Bx%5Eo%3D180%5Eo)
<em>subtract 38 from both sides</em>
<em>divide both sides by 2</em>
![x^2=71^o](https://tex.z-dn.net/?f=x%5E2%3D71%5Eo)
<h3>Answer: x = 71.</h3>