Answer:
There are 480 boys at the school.
There are 320 girls at the school.
Step-by-step explanation:
Answer:
2. 8x
3. (12/2)*(10/2)
Step-by-step explanation:
Answer:
a) The measure of the reference angle is 45°
Step-by-step explanation:
Reference angle:


= 45°
Answer:
1)
32x^2 - 28x - 15
2)
30x^2 + 54x - 12
Step-by-step explanation:
1.
(8x+3)(4x-5)
Using FOIL
= (8x)(4x) + (8x)(-5) + (3)(4x) + (3)(-5)
= 32x^2 - 40x + 12x - 15
= 32x^2 - 28x - 15
2.
(10x-2)(3x+6)
Using FOIL
= (10x)(3x) + (10x)(6) + (-2)(3x) + (-2)(6)
= 30x^2 + 60x - 6x - 12
= 30x^2 + 54x - 12