For part A, use the Pythagorean Theorem.
a.) Since we see that the triangle is made up of two right triangles, simply subtract half the leg from the length of the hypotenuse.
10/2 = 5
13² - 5² = 169 - 25 = √144 = 12 centimeters cubed for the height.
b.) For this, we need to find the surface area of the prism. The surface area of a triangular prism can be found using the formula:
Surface area (SA) = 10(12) + (10 + 13 + 13)(20)
=120 + 660 = 780 cm²
(3x^2 - 2x)(x + 4)
<em><u>First step would be: distributive property.</u></em>
3x^3 + 12x^2 - 2x^2 - 8x
<em><u>Combine like terms.</u></em>
3x^3 + 10x^2 - 8x is the simplified form of the functions multiplied.
Your answer is D.
15.5/1.25 = 12.4 pieces
We can't have .4 of a piece if they are all to be equal so we can obtain 12 pieces of ribbon in total.
Answer:
The last one
Step-by-step explanation:
Answer:
x=-117/4
Step-by-step explanation:
5x-15+130=x-2
5x-x+115=-2
4x+115=-2
4x=-2-115
4x=-117
x=-117/4
