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Deffense [45]
2 years ago
6

Square the number 1 through 20 and 25​

Mathematics
1 answer:
klasskru [66]2 years ago
5 0

Answer:

2=4,3=9,4=16,5=25,6=36,7=49,8=64,9=81,10=100,11=121,12=144,13=169,14=196,15=125,16=256,17=289,18=324,19=361,20=400

Step-by-step explanation:

np

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PLEASE HELP!!!!!!!!
Nataly [62]

Answer:

C. Y=1,200(1-0.035)x

Step-by-step explanation:

6 0
2 years ago
What is the value of 3(4x+5y) - 2(7x-3y) when x = -2 and y = 3
Shkiper50 [21]

Answer:

67

Step-by-step explanation:

Subsitute both given values into the equation then continue to simplify the equation

3(4(-2)+5(3)) -2(7(-2)-3(3))

3(-8+15) -2(-14-9)

3(7) -2(-23)

21 +46

67

6 0
3 years ago
Read 2 more answers
A baker uses chocolate with 75% cocoa for his famous cake. But his supplier delivered 100 lb of chocolate with 70% cocoa, so the
Nonamiya [84]

Answer:

213 1/3

Step-by-step explanation:

Because I know where you got this question from.

4 0
3 years ago
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Suppose that a jewelry store tracked the amount of emeralds they sold each week to more accurately estimate how many emeralds to
RUDIKE [14]

Answer:

The confidence interval for the mean is given by the following formula:

\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}   (1)

And for this case the 95% confidence interval is given by (2.13; 2.37)

We have a point of estimate for the sample mean with this formula:

\bar X = \frac{Upper+ Lower}{2}= \frac{3.37+2.13}{2}= 2.75

And for the margin of error we have the following estimation:

ME= \frac{Upper -Lower}{2}= \frac{3.37-2.13}{2}= 0.62

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

\bar X represent the sample mean

\mu population mean (variable of interest)

s represent the sample standard deviation

n represent the sample size  

Solution to the problem

The confidence interval for the mean is given by the following formula:

\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}   (1)

And for this case the 95% confidence interval is given by (2.13; 2.37)

We have a point of estimate for the sample mean with this formula:

\bar X = \frac{Upper+ Lower}{2}= \frac{3.37+2.13}{2}= 2.75

And for the margin of error we have the following estimation:

ME= \frac{Upper -Lower}{2}= \frac{3.37-2.13}{2}= 0.62

5 0
3 years ago
What is the answer to 18 divided by parentheses 5-2 parentheses
deff fn [24]
18÷(5-2)

18÷3

6 is the answer
6 0
4 years ago
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