Answer:
A
Step-by-step explanation:
f(x) = 2x
f(-4) = 2(-4) = -8
Answer:
1/5 × 40 = 8
the person's speed is 8 miles per hour
5.5 is your answer your welcome
Answer:
8:3
16:6
Step-by-step explanation:
First, let's check if 9 and 24 have any common factor. If they do have any common ones, we must find the GCF (greatest common factor).
Factors of 9: 1, 3, 9
Factors of 24: 1, 2, 3, 4, 6, 8, 12, 24
The common factors both of the numbers share and 1 and 3. To find the GCF, simply compare one of the factors to the other.
1 < 3
Now that we know the GCF, we can divide the two numbers in the ratio 24 : 9 by it (3).
24:9
24/3:9/3
<u>8:3</u>
Now that our ratio is simplified, it's going to be much easier to find more ratios that are equivalent. <u>8:3</u> is already one equivalent ratio, but if we multiply each number in the ratio by any other number, we can get a new equivalent ratio. Let's multiply each number in the ratio by 2:
<u>8:3</u>
8 ⋅ 2:3 ⋅ 2
<u>16:6</u>
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So, another equivalent ratio to 24:9 (and <u>8:3</u>) is <u>16:6</u>.
30(-2/5)²(5/8) = 30*(4/25)*(5/8) = 30*4/(5*8) = 3