The equation is at the top, the steps are in between, and the answer is at the bottom
hope this helps
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
Answer:
3.2x + 0.8y ≤ 50
Step-by-step explanation:
Mr. Ishimoto ordered math books and workbooks for his class.
Weight of each math book = 3.2 pounds
number of math books ordered = x
so, total weight of math books = 3.2x
Weight of each workbook = 0.8 pounds
number of workbooks ordered = y
so, total weight of workbooks = 0.8y
Since the total weight of the box of books cannot be more than 50 pounds, the equation would be
3.2x + 0.8y ≤ 50
Answer:
11
Step-by-step explanation:
5(2+4)-(2+3^3)
=5(8)-(2+27)
=40-29
=11
