Answer:
20
Step-by-step explanation:
Evaluate 3 x^2 - 4 x where x = -2:
3 x^2 - 4 x = 3×(-2)^2 - -2×4
Hint: | Evaluate (-2)^2.
(-2)^2 = 4:
3×4 - 4 (-2)
Hint: | Multiply 3 and 4 together.
3×4 = 12:
12 - 4 (-2)
Hint: | Multiply -4 and -2 together.
-4 (-2) = 8:
8 + 12
Hint: | Evaluate 12 + 8 using long addition.
| 1 |
| 1 | 2
+ | | 8
| 2 | 0:
Answer: 20
Answer:
<em>The cost of 15 potatoes is $7.50</em>
Step-by-step explanation:
The potatoes are sold at a rate of $0.5 per potato.
1. Given Amanda can only spend $5 on potatoes at that price, she can buy at most $5 / 0.5 = 10 potatoes.
Amanda can buy at most 10 potatoes
2. Sam wants to buy 15 potatoes at that very same price. The cost of 15 potatoes is:
15 * $0.5 = $7.50
The cost of 15 potatoes is $7.50
Answer:
1 3/4 gallon or 1.75
Step-by-step explanation:
1 (1/4) = 5/7
5/4 = 5/7
5/4 = 1.25
1.25/x = 5/7
7(1.25) = 5x
5x = 8.75
x = 1 3/4
Answer:
n=16
Step-by-step explanation:
m=9
solve for now where
n=25 -m
n=25-9
n=16
Answer:
The answer is: a
Step-by-step explanation:
0 - a = -a. So -a + a = 0
