Answer:
A 70
Step-by-step explanation:
We know that angle B and angle C are equal because this is an isosceles triangle and the angles at the base of the equal sides are equal.
The three angles of a triangle add to 180 degrees
A + B+ C = 180
40 + C + C = 180 since B = C
Combine like terms
40 + 2C = 180
Subtract 40 from each side
40-40 + 2C = 180-40
2C = 140
Divide by 2
2C /2 =140/2
C = 70
10x + 17 use PEMDAS (Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction)
Answer:
Multiplication of positive and negative integers is related to multiplication with positive and negative fractions through the multiplication rule for integers. If you multiply a two fractions with same signs, they would result in positive; in the other hand, if you multiply two signs with different sign, it would result to a negative integer.
Answer:
yes
Step-by-step explanation: