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Zanzabum
3 years ago
13

You work two jobs. You earn $9.80 per hour as a salesperson and $7.84 per hour stocking shelves. Your combined earnings this mon

th are $156.80. Let xx represent the number of hours worked stocking shelves and let yy represent the number of hours worked in sales. Graph the equation that models this situation.
Mathematics
1 answer:
mars1129 [50]3 years ago
5 0
9.80y+7.84x
hope this helps!

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Let mu denote the true average number of minutes of a television commercial. Suppose the hypothesis H0: mu = 2.1 versus Ha: mu &
natka813 [3]

Answer:

A. T > 2.539

Step-by-step explanation:

We have a hypothesis test of the mean, with unknown population standard deviation.

The hypothesis are:

H_0: \mu = 2.1 \\\\H_a: \mu > 2.1

From the hypothesis we can see that the test is right-tailed, so the critical value of t should be a positive value.

The degrees of freedom can be calculated as:

df=n-1=20-1=19

The significance level is 0.01, so the critical value tc should be the one that satisfies:

P(t>t_c)=0.01

Looking up in a t-table, for 19 degrees of freedom, this critical value is tc=2.539.

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3 years ago
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Fynjy0 [20]

Answer:

No it is the ticked one........

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3 years ago
Evaluate the expression if a= -5 and b=-2.<br> a + 3b<br> A:4<br> B:1<br> C:11<br> D: -11
yuradex [85]

Answer:

D.-11

Step-by-step explanation:

5 0
3 years ago
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If the two prisms have equal heights and volumes, what is the length of the x in Polam I?
anastassius [24]

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A

Step-by-step explanation:

Because it is same height

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3 years ago
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What is the GCF of 81 and 36?<br> What is the LCM of 4 and 9?
Mila [183]
The question "What is the LCM and GCF of 36 and 81?" can be split into two questions: "What is the LCM of 36 and 81?" and "What is the GCF of 36 and 81?"

In the question "What is the LCM and GCF of 36 and 81?", LCM is the abbreviation of Least Common Multiple and GCF is the abbreviation of Greatest Common Factor.

To find the LCM, we first list the multiples of 36 and 81 and then we find the smallest multiple they have in common. To find the multiples of any number, you simply multiply the number by 1, then by 2, then by 3 and so on. Here is the beginning list of multiples of 36 and 81:

Multiples of 36: 36, 72, 108, 144, 180, 216, etc.

Multiples of 81: 81, 162, 243, 324, 405, 486, etc.

The least multiple on the two lists that they have in common is the LCM of 36 and 81. Therefore, the LCM of 36 and 81 is 324.
4 0
3 years ago
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