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Anna35 [415]
3 years ago
10

Solve for x. x + 8 = -15

Mathematics
1 answer:
anygoal [31]3 years ago
5 0
1. Subtract 8 from both sides
2. Simplify to get x= -23

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What is the percentage:<br><br> 16 out of 20
gtnhenbr [62]
16/20= .80
.80 x 100%
=80%
3 0
4 years ago
a line with the slope of -2 passes through the point (1,7) what is the closest point on the line above (1,7) which has a whole n
deff fn [24]
The closest point above on this line is (0,9)

You can find this by using the rise over run method. Since the slope is -2, we can move to the next whole number point by observing the fraction 2/-1.

Rise = 2
Run = -1

If you start on the point (1,7) and rise two, it will bring you to (1,9), then you have to move back one space (or run) to (0,9).
3 0
3 years ago
One root of f(x)=x^3-4x^2-20x+48 is x = 6. What are all the factors of the function? Use the Remainder Theorem.
luda_lava [24]

Answer:

(x - 6)(x + 4)(x - 2)

Step-by-step explanation:

since x = 6 is a root then (x - 6) is a factor

x³ - 4x² - 20x + 48 ÷ (x - 6)

= (x - 6)(x² + 2x - 8)

= (x - 6)(x + 4)(x - 2) ← factors of f(x)

7 0
3 years ago
1. If y varies directly as x and y=13 when x=23.4, find y when x=9.
pychu [463]

Answer:

1. y = 5

2. y = 15

Step-by-step explanation:

8 0
3 years ago
Is the mean height for all adult American males between the ages of 18 and 21 now over 6 feet? Let μ represent the population m
SIZIF [17.4K]

Answer:

A. H0: μ = 6 vs. Ha: μ > 6

H0 : µ = 6 vs. Ha : µ > 6

Step-by-step explanation:

Null hypotheses state that there is no difference between a parameter and a specific value.

Alternative hypotheses states a specific difference between a parameter and a specific value.

Null hypotheses is represented as H0

Alternative hypotheses is represented as Ha.

From the question,

The claim is this "Is the mean height for all adult American males between the ages of 18 and 21 now over 6 feet?" The claimed statement represent the Alternative hypotheses.

So, the alternative hypotheses is:

Ha: μ > 6

While the null hypotheses is:

H0: μ = 6

7 0
3 years ago
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