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3 years ago

What is the correlation coefficient for the data in the table

Mathematics

1 answer:

murzikaleks [220]3 years ago

3 0

Do you have the table?

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Prime factors of 20 i dont know this question

dem82 [27]

Answer:

2 x 2 x 5,

Step-by-step explanation:

20 = 1 x 20

2 x 10

4 x 5

Factors of 20= 1, 2, 4, 5, 10, 20.

Prime factors are = 2 x 2 x 5,

6 0

3 years ago

Read 2 more answers

A) Work out 5% of 240

Pani-rosa [81]

Answer:

12 sorry if its wrong

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Find the missing lengths: LK=15 and KH=9, find KI and HI.

Luda [366]

Answer:

KI=11.25 and HI=6.75

Step-by-step explanation:

Consider the below figure attached with this question.

According to Pythagoras Theorem:

$base^2+perpendicular^2=hypotenuse^2$

Use Pythagoras in triangle HKL

$LH^2+KH^2=LK^2$

$(LH)^2+9^2=15^2$

$(LH)^2+81=225$

$(LH)^2=144$

Taking square root on both sides.

$LH=12$

Let length of HI be x.

LI = 12+x

Use Pythagoras theorem in ΔKLI,

$(KI)^2+15^2=(12+x)^2$

$(KI)^2+225=x^2+24x+144$

$(KI)^2=x^2+24x+144-225$

$(KI)^2=x^2+24x-81...(1)$

Use Pythagoras theorem in ΔHKI,

$(KI)^2=x^2+9^2$

$(KI)^2=x^2+81...(2)$

From (1) and (2) we get

$x^2+81=x^2+24x-81$

$24x=162$

$x=\dfrac{162}{24}=6.75$

Hence, the measure of HI is 6.75 units.

Substitute x=6.75 in equation (2).

$(KI)^2=(6.75)^2+81$

$(KI)^2=126.5625$

Taking square root on both sides.

$KI=\sqrt{126.5625}$

$KI=11.25$

Hence, the measure of KI is 11.25 units.

3 0

3 years ago

Which answer is equal to (f - g) (-5)

Marina CMI [18]

f(5)= 2+5 = 7
g(5)= 5^2+5 = 25 +5 = 30

(f - g) (-5) = 7 - 30 = -23

answer is D.-23

6 0

3 years ago

I really need help with this, ill give brainly.

rusak2 [61]

Answer:

the rate of change is-3 2

3 0

2 years ago