Answer:
4x^2+16x+5
Step-by-step explanation:
(6x^2+7x)+(5-2x^2+9x)
6x^2-2x^2+7x+9x+5
4x^2+16x+5
Answer:
112 yd²
Step-by-step explanation:
Surface area of the square pyramid = area of base + perimeter of base × slant height
Area of base = s²
s = 4 yd
Area = 4² = 16 yd²
Perimeter = 4(s)
Perimeter = 4(4) = 16 yd
Slant height = 6 yd
Surface area of the square pyramid = 16 + 16 × 6
= 16 + 96
= 112 yd²
Question 11 is b. hope it helps question 12 is a. 13 is b. 14 is also b
Answer:
The answer is B.
Step-by-step explanation:
Pentagons have a sum of 540°
540 - (115 + 115 + 90 + 90)
540 - 410
130
Answer:
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Step-by-step explanation:
