Answer: 7x^2+21x+14
Step-by-step explanation:
(7x+7)(x+2)
Multiply each term in the first parentheses by each term in the second parentheses (FOIL)
7x×x+7x×2+7x+7×2
↘ ↙
7x×x calculate product
7x^2+7x×2+7x+7×2
↘ ↙
7x×2 calculate product
7x^2+14x+7x+7×2
↘↙
7×2 multiply numbers
7x^2+14x+7x+14
↘ ↙
21x collect like terms
7x^2+21x+14 is your end result.
B but I'm not as sure though
<span>A circle is 360° all the way around; therefore, if you divide an arc's degree measure by 360°, you find the fraction of the circle's circumference that the arc makes up. Then, if you multiply the length all the way around the circle (the circle's circumference) by that fraction, you get the length along the arc.</span>
Answer:
2 1/4
Step-by-step explanation:
- 5 1/4 - ( - 7 1/2)
Subtracting a negative is like adding
- 5 1/4 + 7 1/2
Get a common denominator of 4
-5 1/4 + 7 2/4
Subtract
7 2/4 - 5 1/4
2 1/4