Answer:
Yes, BC || DE
Step-by-step explanation:
set up proportion and cross multiply to solve:
15/10 = 12/8
120 = 120
This is true! You can justify by explaining how you cross multiplied like the bold words above :)
X = 21
ABC has a scale factor of 3, so each value is x3
7x3 = 21
Answer:
Step-by-step explanation:
Given
Required
The values of m and n
For x - 1;
we have:
So:
Collect like terms
Because x - 1 divides the polynomial, then P(1) = 0;
So, we have:
Add 9 to both sides
--- (1)
For x + 2;
we have:
So:
Collect like terms
x + 2 leaves a remainder of 36, means that P(-2) = 36;
So, we have:
Collect like terms
Divide through by 2
--- (2)
Add (1) and (2)
Divide by 3
Substitute in (1)
Make n the subject
Answer:
9800000
Step-by-step explanation:
Answer:
x = -2 or -12
Step-by-step explanation:
That is the solution above