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murzikaleks [220]
3 years ago
14

Need Help QUICK, Will MARK BRAINLIEST!!!! LOTS OF POINTS

Mathematics
2 answers:
Ksju [112]3 years ago
7 0

Answer:

what is the question???

Step-by-step explanation:

Annette [7]3 years ago
3 0

Answer:

Step-by-step explanation:

Help with what

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Checking my answer again: 11/16 + 1/4
Yuri [45]
15/16 should be the right answer b/c 1/4= 4/16
6 0
2 years ago
To estimate a population mean, the sample size needed to provide a margin of error of 3 or less with a 95% confidence when the p
Over [174]

Answer:

The minimum sample needed to provide a margin of error of 3 or less is 52.

Step-by-step explanation:

The confidence interval for population mean (<em>μ</em>) is:

\bar x\pm z_{\alpha /2}\frac{\sigma}{\sqrt{n}}

The margin of error is:

MOE= z_{\alpha /2}\frac{\sigma}{\sqrt{n}}

<u>Given:</u>

MOE = 3

<em>σ </em>= 11

The critical value for 95% confidence interval is: z_{\alpha /2}=1.96

**Use the <em>z</em>-table for critical values.

Compute the sample size (<em>n</em>) as follows:

MOE= z_{\alpha /2}\frac{\sigma}{\sqrt{n}}\\3=1.96\times \frac{11}{\sqrt{n}}\\n=(\frac{1.96\times11}{3} )^{2}\\=51.65\\\approx52

Thus, the minimum sample needed to provide a margin of error of 3 or less is 52.

7 0
3 years ago
Create a word problem for 2x+10=30
Svetradugi [14.3K]

Answer:

Step-by-step explanation:

There were three boxes of parts. one weighed 10 pounds, and you know the other two weigh the same. All three together weigh 30 pounds. How much do the two weigh?

4 0
3 years ago
A community action committee is planning a block party. The party will be successful only if at least 70 adults and children att
Sergeeva-Olga [200]

Answer:

A. a + c ≥ 70; 15a + 4c ≤ 1000

Step-by-step explanation:

<u>Given data:</u>

A community action committee is planning a block party

The party will be successful if at least 70 adults (a) and children (c) attend

Their budget for the party is $1,000

The cost for each adult will be $15

And the cost for each child will be $4

<u>Solution:</u>

<u />

At least 70 adults and children attend.

So the inequality here is a + c ≥ 70

The budget for the party is $1,000.

So the cost for all adults plus the cost for all children cannot exceed $1,000

And hence the inequality here is; 15a + 4c ≤ 1,000

3 0
3 years ago
Read 2 more answers
What’s the volume of the prism HURRY
noname [10]

Answer:

300

Step-by-step explanation

LxWxH

8 0
2 years ago
Read 2 more answers
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