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3 years ago

True or False: This table describes a linear function

Mathematics

2 answers:

Blababa [14]3 years ago

7 0

Answer:True

Step-by-step explanation:

There is a constant rate of change. For x, it'd be +1. For y, it'd be +3.

Vote brainliest please!

stich3 [128]3 years ago

4 0

Answer:

true

Step-by-step explanation:

This is because the slope is y= 3x, you can prove that by plugging in the x values, and if they equal the y then that slope is right.

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Pete wants to mix 4 quarts of 20% orange juice concentrate with some 60% pineapple juice concentrate to get a 50% punch concentr

Tamiku [17]

Pete starts with 4 quarts of 20% juice, which contains

0.20 • (4 quarts) = 0.8 quarts

of juice.

If he mixes this with x quarts of 60% juice, which contains

0.60 • (x quarts) = 0.6x quarts

of juice, then he would end up with a mixture with a volume of (x + 4) quarts that contains (0.8 + 0.6x) quarts of juice. The mix has to have a concentration of 50% juice, which means

(0.8 + 0.6x) / (x + 4) = 0.50

Solve for x :

0.8 + 0.6x = 0.50 (x + 4)

0.8 + 0.6x = 0.5x + 2

0.1x = 1.2

x = 12

So Pete needs 12 quarts of the 60% juice.

7 0

3 years ago

Suppose you want to estimate the proportion of cars that are sport utility vehicles (SUVs) being driven in Kansas City, Missouri

ahrayia [7]

Answer:

The sample size 'n' = 721

Number of cars 'n' = 721

Step-by-step explanation:

Explanation:-

Given Population proportion 'p' = 0.40

Given Margin of error = 0.03

90% of level of significance

$Z_{\frac{\alpha }{2} } = 1.645$

The Margin of error is determined by

$M.E = \frac{Z_{\frac{\alpha }{2} S.D} }{\sqrt{n} }$

$0.03 = \frac{1.645 X \sqrt{0.40(1-0.40) } }{\sqrt{n} }$

on calculation , we get

0.03√n = 0.8058

$\sqrt{n} = \frac{0.8058}{0.03} = 26.86$

squaring on both sides , we get

n = 721.45≅721

conclusion:-

The sample size 'n' = 721

Number of cars 'n' = 721

5 0

3 years ago

I don’t really get this question y= 12r + 28

Debora [2.8K]

answer : r = y - 28 / 12

explanation :

y - 28 = 12r

y - 28 / 12 = r

switch sides ^

r = y - 28 / 12

8 0

3 years ago

What is 18/5 as a mixed fraction?

Vsevolod [243]

I believe the answer is 3 and 3/5

6 0

3 years ago

Read 2 more answers

Is it true or false?? please help me.

Alecsey [184]

Answer:

its true darlin

boom baby:

6 0

4 years ago