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2 years ago

If you work make 15 an hour for 8 hour shift how much is that

Mathematics

2 answers:

Bad White [126]2 years ago

8 0

120 , multiply 15 by 8

tangare [24]2 years ago

5 0

Answer:

120

Step-by-step explanation:

15*8=120

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PLS HELP

Soloha48 [4]

(6,5)---------------(1,2)-------------------(x2,y2)
6+x2/2=1
5+y2/2=2

6+x2=2
x2=-4
y2=4-5
y2=-1
(-4,-1)

answer is C

3 0

2 years ago

If seven times a number is added to the squares of the number and the result is negative twelve, what are the numbers?

AleksAgata [21]

Let's name the number 'n'. Now write an equation. 7*n +n^2 =12Now you can form a quadratic. n^2 +7n-12=0. Now you can use a myriad of methods to solve it. If you still need help, just message me.

6 0

3 years ago

Joe heard from a reliable source that only 22% of people actually sleep 8 hours or more per night. You do a survey and find 58 o

Juliette [100K]

Answer:

95% Confidence interval: (31.32%,47.04%)

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 148

Number of people who sleep for 8 hours or longer, x = 58

$\hat{p} = \dfrac{x}{n} = \dfrac{58}{148} = 0.3918$

95% Confidence interval:

$\hat{p}\pm z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

Putting the values, we get:

$0.3918\pm 1.96(\sqrt{\dfrac{0.3918(1-0.3918)}{148}})\\\\ = 0.3918\pm 0.0786\\\\=(0.3132,0.4704)=(31.32\%,47.04\%)$

(31.32%,47.04%) is the required 95% confidence interval.

8 0

3 years ago

Which expression is equivalent to (2^3)^-5

Ostrovityanka [42]

Hi!

You didn't list the options, but I think I know the answer. Let me know if my answer isn't listed! :)

$(x^{3} )^{-5}$
We need to multiply the exponents.
3 · -5 = -15

The answer is $2^{-15}$

Hope this helps! :)

3 0

3 years ago

Read 2 more answers

How do solve this equation step by step

Kryger [21]

Answer: 15n³-105n²+2n+16/6n²-42n

Step-by-step explanation:

n+8/3n²-21n +5n/2

2(n+8)+5n(3n²-21n)/2(3n²-21n)

2n+16+15n³-105n²/6n²-42n

15n³-105n²+2n+16/6n²-42n

7 0

3 years ago