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Anuta_ua [19.1K]
2 years ago
11

Kendra made a bar graph showing the number of hours she spent doing homework for different school subjects last month. How many

hours did she spend doing math and science homework combined?
Mathematics
1 answer:
VARVARA [1.3K]2 years ago
3 0

Answer: 54

Step-by-step explanation: Step 1 i checked how many each one has and multiplied it by all of the numbers there were there by using a plus the hours are 54

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A random sampling of a company's monthly operating expenses for n=36 months produced a sample mean of $5474 and a stan-dard devi
lilavasa [31]

Answer with explanation:

Mean of the sample(m) = $ 5474

Standard deviation of the sample (S)=764

Number of observation(n)=36

Z_{90 \text{Percent}}=Z_{0.09}=0.5359

z_{score}=\frac{\Bar x-\mu}{\frac{S}{\sqrt{n}}}\\\\0.5359=\frac{5474- \mu}{\frac{764}{\sqrt{36}}}\\\\0.5359=\frac{5474- \mu}{\frac{764}{6}}\\\\764 \times 0.5359=6 \times (5474- \mu)\\\\409.4276=32844-6 \mu\\\\6 \mu=32844 -409.4276\\\\ 6 \mu=32434.5724\\\\ \mu=\frac{32434.5724}{6}\\\\ \mu=5405.76

So, Mean Monthly Expenses of Population =$ 5405.76, which is 90% upper confidence bound for the company's mean monthly expenses.

4 0
3 years ago
Make sure and read this carefully!
olchik [2.2K]

Answer:

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Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Please help ASAP!!!!
PilotLPTM [1.2K]

Answer:

2/25

Step-by-step explanation:^2 = 1/25

Cubic Root 8 = cubic root = 2^3 = 2

(1/25)*(2) = 2/25

6 0
2 years ago
25 km<br> 7 km<br> 18 km<br> 24 km<br> Find the area!!
Anna35 [415]

Answer:

75600k^4 m^4 Hope that help !

Step-by-step explanation:

1. Take out the constants (25×7×18×24) kkkkmmmm

2. Simplify 25×7=175 (175×18×24)kkkkmmmm

3. Simplify 175×18=3150 (3150×24)kkkkmmmm

4. 3150×24= 75600kkkkmmmm

5. The answer would be 75600k^4 m^4

7 0
2 years ago
Coefficient of (2x+y^2)^5
BigorU [14]
<span>(2x + y2)<span>5 heres you answer your so welcome</span></span>
7 0
3 years ago
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