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AURORKA [14]
3 years ago
8

The variable y varies directly with the variable x.

Mathematics
2 answers:
Phantasy [73]3 years ago
7 0

Answer:

21

Step-by-step explanation:

y = kx

3 = 2k

k = 3/2

y = (3/2)x

y = (3/2)(14)

y = 21

Roman55 [17]3 years ago
3 0

Answer:

A

Step-by-step explanation:

Took the test

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Construct a linear equation for the table. What is the slope of the line
Klio2033 [76]

We have points (-3, 4), (-1, 2), (4, -3) and (6,-5)

Let's verify it's a line by calculating the slopes between successive points.

Slope is change in y over change in x.

(2 - 4)/(-1 - -3) = -2/2 = -1

(-3 - 2)/(4 - -1) = -5/5 = -1

(-5 - -3)/(6 - 4) = -2/2 =-1

Yup.  We have a line of slope -1 through point (-1, 2)

y - 2 = -1(x - -1)

y  = -x - 1 + 2

y = -x + 1

That's the linear equation for the table.  

Answer:  Linear equation: y = -x + 1          slope = -1

3 0
2 years ago
A new health drink has 130% of the recommended daily allowance (RDA) for a certain vitamin . The rad for this vitamin is 45 mg.
Maslowich

Answer:

58.5 mg

Step-by-step explanation:

Drink: 130% of RDA of vitamin X

RDA vitamin X = 45mg

130% of 45 = mg in the drink

130% = 130/100 = 1.3

130% of 45 = 1.3*45 = 58.5

So, this new drink has 58.5 mg of vitamin

7 0
3 years ago
MAY SOMEONE PLZ HELP ME ON THIS, I DONT KNOW THE EQACTION
just olya [345]

Answer:

I will use "complete-the-square" approach if thats ok

first 0.5(x - 2)² - 2

second -2(x - 4)² + 8

7 0
2 years ago
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madam [21]

Answer: it’s acute

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
A random sample of 10 subjects have weights with a standard deviation of 9 8753 kg What is the variance of their weights? Be sur
hammer [34]

Answer: The variance of their weights = 9,752,155,009 kg.

Step-by-step explanation:

  • The variance is the square of the standard deviation . it measures the spread between data values in a data set.

So if standard deviation of 10 subjects = 98753 kg

Then, variance = (9 8753 )^2\ kg=9,752,155,009\ kg

Hence, the variance of their weights = 9,752,155,009 kg.

8 0
3 years ago
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