Answer:
11
Step-by-step explanation:
<u>Answer:</u>
<h2>SA = 157 in²</h2>
<u>Steps:</u>
SA = 2LW + 2WH + 2LH
SA = 2(9×2) + 2(2×11/2) + 2(9×11/2)
SA = 2×18 + 2×22/2 + 2×99/2
SA = 36 + 22 + 99
SA = 157 in²
Answer:
200+40=240 sq units
Step-by-step explanation:
The rectangle's area is 200 sq units because 10 times 20 = 200
If you take both the triangles and put them together they form a smaller rectangle. The smaller rectangles height is 4 (given) and the base is 10 (because its half of the bigger rectangles base. You do base times height (4 times 10) and you get 40
Big Rectangle Area: 200
Small rectangle Area: 40
Total 240 (200+40)
Answer:
30
Step-by-step explanation:
Pythagorean theorem states that a^2 + b^2 = c^2
this theorem only works on triangles with an angle of 90 degrees or a right triangle.
18^2 + 24^2 = 900
the square root of 900 is 30
I did the square root of 900 because the square root is the 'opposite' of squaring which is what you need to do in order to find 'c' is the Pythagorean theorem. 'a' is 18, and 'b' is 24
Answer is 30
<span>(2x^4+3x^2+7)-(3x^3+9x+4)
you have to take away the </span>parentheses first
2x^4 + 3x^2 + 7 - 3x^3 - 9x - 4
combine like terms
2x^4 - 3x^3 + 3x^2 - 9x + 3