Answer:
√63 can be written as
√ 9 × 7 = √ 9 × √7 = 3 × √ 7
= 3√7
Hope this helps you
Answer:
Two complex roots
Step-by-step explanation:
Discriminant negative means no real roots.
So roots are complex.
For every polynomial, complex roots occur in conjugate pairs
Step-by-step explanation:
a.
b.
Answer:
Y = -2X + 7
Step-by-step explanation:
Y = a(x-h)^2 + k
From (h,k) h = 0 k = 7 x = 2 y = 3
3 = a(2-0) + 7
3 = 2a - 0 + 7
Collect like terms
2a = 3 - 7
2a = -4
Divide both sides by 2
2a/2 = -4/2
a = -2
y = a(x-h) + k
y = -2(x-0) + 7
y = -2x + 0 + 7
y = -2x + 7 or
y + 2x - 7 = 0
To solve:
Every two days, the cow increases by 6lbs.
To find the unit rate, divide 6 by 2 to find the increase in weight per day.
Unit rate increase: 3lbs
To find the weight on the third day, add 3lbs onto day 2's weight.
85+3=88
Answer: A) The calf's weight is 88lbs on the third day.
