3 years ago

Solve my problem, PLEASE!!!!

Mathematics

2 answers:

N76 [4]3 years ago

3 0

Y=-1/3x+5
explanation

notka56 [123]3 years ago

3 0

Answer:

y=-3+15

Step-by-step explanation:

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"In one statistics course, students reported studying an average of 9.92 hours a week, with a standard deviation of 4.54. Treati

Rudik [331]

Answer:

66.28% of students study more than 8 hours

Step-by-step explanation:

The percent of students study more than 8 hour can be calculated as

P(X>8)=?

P(X>8)=P((X-mean)/sd>(8-9.92)/4.54)

The calculated z-score is -0.42.

P(X>8)=P(Z>-0.42)

P(X>8)=P(0<Z<-0.42)+P(0<Z<∞)

P(X>8)=0.1628+0.5=0.6628.

Thus, 66.28% of students study more than 8 hours.

3 0

3 years ago

What is the value of this expression if h<br> = 8,j = -1, and k<br> =<br> -12

Rashid [163]

Answer:

Step-by-step explanation:

The given expression is :

$\dfrac{j^3k}{h^0}$

We need to find the value of this expression when h = 8, j = -1 and k = -12.

Put all the values in the given expression.

$\dfrac{j^3k}{h^0}\\\\=\dfrac{(-1)^3\times (-12)}{(8)^0}\\\\=\dfrac{-1\times -12}{1}\\\\=12$

So, the value of the given expression is 12.

7 0

3 years ago

Help this has to be don today or my grade on it will be a 60

mariarad [96]

Answer:

$\frac{5}{13}$

Step-by-step explanation:

If you have the same denominator, you can just subtract the numerators normally and carry over the denominator.

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Step-by-step explanation:

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