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Natasha2012 [34]
3 years ago
7

Whoever gets it right ill reward brainlyess answer

Mathematics
2 answers:
zepelin [54]3 years ago
8 0
1. Set up a proportion:
18/1:90/x
2. Cross multiply:
18x=90
3. Solve:
90/18=5
5 hours
irga5000 [103]3 years ago
4 0
The correct answer is 5h
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Factor 4(3x + 1)2 - 5(3x + 1) + 1 completely.
lord [1]
C is the correct answer
5 0
3 years ago
Anyone know the answer?
frosja888 [35]

Answer:

3/4

Step-by-step explanation:

3*3=9

3*4=12

4 0
2 years ago
Read 2 more answers
"You measure 34 dogs' weights, and find they have a mean weight of 67 ounces. Assume the population standard deviation is 13.5 o
liraira [26]

Answer:

The 95% confidence interval for the true population mean dog weight is between 62.46 ounces and 71.54 ounces.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.95}{2} = 0.025

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.025 = 0.975, so z = 1.96

Now, find M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

M = 1.96*\frac{13.5}{\sqrt{34}} = 4.54

The lower end of the interval is the sample mean subtracted by M. So it is 67 - 4.54 = 62.46 ounches.

The upper end of the interval is the sample mean added to M. So it is 67 + 4.54 = 71.54 ounces.

The 95% confidence interval for the true population mean dog weight is between 62.46 ounces and 71.54 ounces.

7 0
3 years ago
What is the ratio of 1/5 to 5/15 ?help​
timama [110]
1/5:1/3? I’m not sure..
3 0
3 years ago
Read 2 more answers
If you borrowed $646 at an interest rate of 5% for 6 years, how much interest will you pay? Round to the nearest tenth if necess
k0ka [10]

Answer:

Total interest you will pay is $103.07.

The total you will pay for interest and loan amount is $749.07

iStep-by-step explanation:

8 0
3 years ago
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