When we have exponents like such (x^-6)^-2 , the numbers are multiplying, so we have x^12, then we take that value and, because it is dividing with the same base, we substract the numbers, so x^12-(-4) = x^16.
As a fraction it’s 48 7/10
As a percentage it’s 4870%
Hope that helped!
Answer:
20x^10
Step-by-step explanation:
4x^7 * 5x^3
4(x^7) * 5(x^3)
4*5(x^7)(x^3)
20 x^(7+3)
20x^10
Answer:
40 degrees
Step-by-step explanation:
So,
Her average so far is the sum of the five scores divided by the number of tests she has taken so far.
(87 + 81 + 85 + 90 + 78)/5 = 84.2
(87 + 81 + 85 + 90 + 78)/5 < 85 :(
She will not get into that college if she doesn't increase her average on the last test.
85 - 84.2 = 0.8
0.8(5) = 4.0
On her last test, she needs to score 4 points higher than her current average in order to get into the college.
84.2 + 4 = 88.2
Jessica needs to score at least 88.2 on her last test.
