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3 years ago

What are square numbers what is a square root give an example of both?

1 answer:

6 0

Square numbers are numbers that have square roots that are whole numbers. In other words, when you take a whole number and multiply it by itself, you get a square number. For instance, if we take 5 and multiply it by itself, we get 25. 25 is an example of a square number.

A square root is the opposite. When you have a square number, you take the square root to find which number multiplied by itself gives you that number. That is it's square root. For instance, if we want the square root of 36, we look for a number that when multiplied by itself gives us 36. 6 would be the answer.

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7. If the area of a square is 64 square centimeters, what's the

Anvisha [2.4K]

Answer:

If you're asking what the perimeter is:

C 32cm

If you're asking what the length of a side is:

A 8cm

Step-by-step explanation:

Area of a square is calculated by length x width.

And all four sides of a square are equal in length.

Area: 8cm×8cm=64cm2

Perimeter: 8cm + 8cm + 8cm + 8cm= 32cm

Another way to find the length of the sides would be to take the square root of 64. I believe that only works with the area of a square though.

√(64)=8

5 0

3 years ago

A recent study of 26 city residents showed that the time they had lived at their present address has a mean of 10.3 years with t

svetlana [45]

Answer:

The 95% confidence interval is $9.15< \mu < 11.45$

Step-by-step explanation:

From the question we are told that

The sample size is n = 26

The mean is $\= x = 10.3$

The standard deviation is $s = 3$

From the question we are told the confidence level is 95% , hence the level of significance is

$\alpha = (100 - 95 ) \%$

=> $\alpha = 0.05$

Generally from the normal distribution table the critical value of $\frac{\alpha }{2}$ is

$Z_{\frac{\alpha }{2} } = 1.96$

Generally the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \frac{\sigma }{\sqrt{n} }$

=> $E = 1.96 * \frac{3}{\sqrt{26} }$

=> $E = 1.1532$

Generally 95% confidence interval is mathematically represented as

$\= x -E < \mu < \=x +E$

=> $10.3 -1.1532 < \mu < 10.3 + 1.1532$

=> $9.15< \mu < 11.45$

7 0

3 years ago

Helppppppppp meee too simplify this <br><br><br>

Daniel [21]

Answer:

30,976

Step-by-step explanation:

=}.

$(11 {}^{3} \times 4 { }^{2} \binom{}{11 {}^{2} } ) {}^{2}$

=}.

$(11 \times 4 {}^{2} ) {}^{2}$

=}.

$121 \times (4 {}^{2} ) {}^{2}$

=}.

$121 \times 256$

=}. 30,976

3 0

2 years ago

Read 2 more answers

Two number cubes each have sides that are labeled 1 to 6. Jude rolls the 2 number cubes. What is the probability that the sum of

AleksAgata [21]

Answer: 3

This is the answer if you think its wrong i don't know its correct i got it right

3 0

4 years ago

At a tournament, the bowling league is providing 160 sandwiches for its members.The table shows the number of different types of

frez [133]

Answer:Roast beef- 32 turkey-80 Vegetarian-48

Step-by-step explanation:

This is the answer because if you divide 160 divide by 5 that gives you 32 for the roast beef. For the turkey you divide 160 and 3 that gives you 80. For the vegetarian you have to add 32 and 80 that gives you 112. Then, you subtract 160 and 112 that gives you 48. To check your answer you add 32, 80, and 48 that gives you 160.

4 0

4 years ago