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2 years ago

(2, 12), (4, 7), (5, 4) Will the correlation coefficient for these data points be positive or negative?

1 answer:

8 0

(2,12) , (4,7) -> coefficient is negative, because the x-coordinate is increasing and y-coordinate is decreasing

(4,7), (5,4) -> coeficien is negative too - look above

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3x+3(x+y) what is equivalent

NNADVOKAT [17]

Answer:

6x+3y

Step-by-step explanation:

6 0

2 years ago

<img src="https://tex.z-dn.net/?f=0.2%2810-5c%29%20%3D%205c%20-%2016" id="TexFormula1" title="0.2(10-5c) = 5c - 16" alt="0.2(10-

san4es73 [151]

We are given,

$\longrightarrow 0.2(10 - 5c) = 5c - 16$

Solving the parenthesis

${ \longrightarrow 0.2 \times 10 - 0.2 \times 5c = 5c - 16 }$

${ \longrightarrow 2 - 1c = 5c - 16 }$

${ \longrightarrow 2 + 16 = 5c + 1c }$

${ \longrightarrow 18 = 6c }$

Dividing both sides by 6

${ \longrightarrow 3 = c }$

Hence c = 3.

8 0

2 years ago

141.1933-67.53 =<br> (Divided, not minus)

Sphinxa [80]

Answer: I think its 2.09

Step-by-step explanation:

But i'm not sure.

5 0

2 years ago

A torch and a battery cost £2.50 altogether. The torch costs £2.00 more than the battery.

Hitman42 [59]

Answer:

1/5

Step-by-step explanation:

To find what fraction of the total price the battery is, we need to find out how much the battery alone is first.

Since the battery and torch together are £2.50 and the torch is £2.00, we can find the price of the battery by subtracting the total price to the price of the torch.

Battery Price = £2.50 - £2.00

Battery Price = £0.50

The fraction value of the torch is:

2.00 of 2.50 = 4/5

That then leaves us with:

0.50 of 2.50 = 1/5

To check we need to add the two fractions together.

1/5 + 4/5 = 5/5 or 1

6 0

2 years ago

There are 207 students in 9 classes at east middle school at this rate how many students are in 6 classes

patriot [66]

Answer:

138 students

Step-by-step explanation:

207/9 = 23

23*6=138

4 0

2 years ago

Read 2 more answers