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avanturin [10]
3 years ago
10

Calculate the constant of variation if y varies directly as x.

Mathematics
2 answers:
Y_Kistochka [10]3 years ago
6 0

Answer:

k = - \frac{3}{2}

Step-by-step explanation:

since y varies directly as x, then the equation connecting them is

y = kx ← k is the constant of variation

to find k use the given condition y = - 3 when x = 2, thus

k = \frac{y}{x} = \frac{-3}{2} = - \frac{3}{2}


Anton [14]3 years ago
5 0

The answer is A -3/2
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What is the range of the function graphed below?
OlgaM077 [116]

Answer:

-infinity < y ≤ 2

Step-by-step explanation:

A is correct.  The largest value y can have is 2, whereas there is no smallest value.   -infinity < y ≤ 2

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3 years ago
To find proportion of the area under the normal curve between two Z scores that are both above the mean, it is necessary to exam
VikaD [51]

It is necessary to imagine the sum of the areas between each z-score and the average.

Given as the ratio of the area under the normal curve between two z-scores, both above average.

The  Z score accurately measures the number of standard deviations above or below the mean of the data points.

The formula for calculating the z-score is

z = (data points – mean) / (standard deviation).

It is also expressed as z = (x-μ) / σ.

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Therefore, to find the percentage of the area under the normal curve between two z-scores, both above the mean, you need to look at the sum of the areas between the z-score and the mean.

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7 0
1 year ago
ANSWER FAST <br> NO LINKS<br> 23=x-13<br><br> 9+x=14<br><br> 12=x+8
Anna35 [415]

Answer:

23=x-13, x=36

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Step-by-step explanation:

23=x-13. You want to isolate x so you have to add 13 to both sides. x=23+13, x=36

9+x=14. You want to isolate x so you have to subtract 9 from both sides. x=14-9, x=5.

12=x+8. You want to isolate x so you have to subtract 8 from both sides. x=4.

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3 years ago
What is the answer I need to know
kolezko [41]
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3 years ago
Please help with algebra!!! ill give brainliest
patriot [66]

Answer:

answer is attached in the image below

4 0
3 years ago
Read 2 more answers
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