Answer:
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Answer:
x+7=2
minus 7 from both sides so you get:
x=2-7
simplify
x=-5
Step-by-step explanation:
Answer:
The measure of the 2 angles are 90° and 35°.
Step-by-step explanation:
The sum of angles in a triangle is 180°.
2x + x - 10 + 55 = 180
Simplify.
3x + 45 = 180
Find 3x.
3x = 180 - 45
= 135
Find x.
x = 135 ÷ 3
x = 45
2x° = 45° × 2
= 90°
(x-10)° = 45° - 10°
= 35°
Answer:
the answer is c) 2n+8
Step-by-step explanation:
This is because the expession applies to every figure when calculating the amount of sides
figure 1- 2(1)+8 = 2+8 = 10
figure 2- 2(2)+8 = 4+8 = 12
figure 3- 2(3)+8 = 6+8 = 14
Yes, the expression is true for every figure, proving that it can solve for the perimeter
hope this helps :)
Answer:
surface area of cube=6×side²
surface area of cube=6×(2.2cm)²
surface area of cube =29.04cm²