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3 years ago

Please help me!

Mathematics

1 answer:

Leviafan [203]3 years ago

7 0

Answer:

<h2>The Answer is 4. it is two times larger.</h2>

Step-by-step explanation:

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If a correlation coefficient was r = -0.94, what would this represent?

nasty-shy [4]

Answer:

this would represent a strong negative

Step-by-step explanation:

on a correlation line you have strong negatives,weak negatives,none,weak positives, and strong positives.Since the coefficient is a hand negative, focus on the left side. A weak negative is -0.5 greater than or equal to so since -0.94 is less than -0.5 it advances on to the next category of the correlation line, thus resulting in the correlation coefficient to be a strong negative.

4 0

3 years ago

Need help here is an image so you can see what the question is asking

Verizon [17]

Answer:

first question :

The missing value is the slope

let me be the slope

m= (3-1)/(0-(-1)) = 2

so y= 2x+3

secong question :

the missing value is the y-intercept

wich the image of 0 *it's -1

so : y= 3x-1

third question

draw the two functions

you'll find that they intercept at (4;11)

4 0

3 years ago

The greatest common factor of 45a^2b^3 and 18a^4b

mojhsa [17]

Answer:

9a²b

Step-by-step explanation:

Hi there!

We need to find the greatest common factor out of 45a²b³ and 18 $a^{4}$ b

We can split apart the monomials to make it easier

45a²b³ is 45*a²b³

18 $a^{4}$ b is 18* $a^{4}$ b

First, let's find the GCF out of 45 and 18 (the number coefficients)

we can find all of the multiples of the 2 numbers:

45 is made up of 9 and 5

9 is made up of 3 and 3

so 3*3*5 is 45

18 is made up of 2 and 9

9 is made up of 3 and 3

so 2*3*3 is 18

3*3 is in both 45 and 18, so 9 is the GCF out of 45 and 18

Now let's find the GCF out of a²b³ and $a^{4}$ b

a²b³ made up of a² and b³

so a²b³ is a*a*b*b*b

$a^{4}$ b is made up of $a^{4}$ and b

so $a^{4}$ b is a*a*a*a*b

a*a*b is in both a²b³ and $a^{4}$ b, so the GCF out of a²b³ and $a^{4}$ b is a²b

Now multiply 9 and a²b together, as they are only the GCF of the parts of the monomials

9*a²b=<u>9a²b</u>

there's the greatest common factor of the 2 monomials

Hope this helps!

7 0

3 years ago

Solve the system 3x + 4y = 8 and y = 3/4x — 2 using any method. Classify the system.

Sergeeva-Olga [200]

3x +4y = 8

y = 3/4x - 2

Substitution Method

3x + 4(3/4x -2) = 8

Distributive Property:

3x + 3x -8 = 8

Simplify:

6x -8 = 8

Add 8 to each side:

6x = 16

Divide both sides by 6"

x = 16/6

x = 2 2/3

Now replace x with that and solve for y:

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

y = 2-2 = 0

y=0

4 0

3 years ago

Read 2 more answers

A television network is deciding whether or not to give its newest television show a spot during prime viewing time at night. If

Alinara [238K]

Answer:

Test statistic z= 1.708

Step-by-step explanation:

given that a television network is deciding whether or not to give its newest television show a spot during prime viewing time at night. If this is to happen, it will have to move one of its most viewed shows to another slot.

Sample size n = 827

Sample proportion p = $\frac{438}{827} \\=0.5297$

$H_0: p =0.5\\H_a: p >0.5$

(right tailed test)

This is because they would be interested if more than half viewers are ready for the change

Test statistic = Z = p difference/std error

p difference = 0.0297

Std error = $\sqrt{\frac{pq}{n} } \\=\sqrt{\frac{0.5*0.5}{827} } \\=0.0174$

Z =1.708

p valu e= 0.9562

Since p >0.05 we fail to reject H0

Test statistic z= 1.708

8 0

3 years ago