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4 years ago

Find the length of a square with a perimeter of 48cmeter

Mathematics

2 answers:

poizon [28]4 years ago

8 0

Answer:

Step-by-step explanation:

Perimeter of a square:

4(L)

L = Length

=> 4(L) = 48

=> 4L = 48

=> 4L/4 = 48/4

=> L = 12

The length of the square is 12 cm.

skad [1K]4 years ago

3 0

Answer:

Step-by-step explanation:

Since the lengths of the sides of a square are equal, divide the perimeter by 4

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Problem Solving

LiRa [457]

The sum of the two hamsters weight = 1950g

If hamster1 (x) = hamster2 (y) + 300g

Therefore

1950g = x + y

1950g = x + (x +300g)

1950g - 300g = x + x

1650g = 2x

825g = x

Therefore

Hamster1 = x = 825g
Hamster2 = x + 300g = 1125g

5 0

3 years ago

If someone dives 300 feet in 2 minutes and another person dives 6750 ft in 45 minutes let X represent the time of dive and y rep

Cerrena [4.2K]

300÷2=150 per min, 6750÷45=150, 150 feet per min

6 0

3 years ago

Suppose the speeds of vehicles traveling on a highway are normally distributed and have a known population standard deviation of

ladessa [460]

Answer:

The margin of error for the confidence interval for the population mean with a 98% confidence level is 2.88 miles per hour.

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:

$\alpha = \frac{1-0.98}{2} = 0.01$

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 $1-0.01 = 0.99$ , so $z = 2.326$

Now, find the margin of error 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.

Find the margin of error for the confidence interval for the population mean with a 98% confidence level.

$M = 2.326*\frac{7}{\sqrt{32}} = 2.88$

The margin of error for the confidence interval for the population mean with a 98% confidence level is 2.88 miles per hour.

5 0

3 years ago

(6/x) squared, is equal to?

DiKsa [7]

Six Squares, the answer is 36.

5 0

3 years ago

Read 2 more answers

Helpp<br> graph y +2 <-2/3x+4

skelet666 [1.2K]

Answer:

Graph B

Step-by-step explanation:

Step 1) y+2≤-2/3x+4

Subtract 2 from both sides to get y≤-2/3x+2

Step 2) We know the line will be solid because of a "≤" sign. Use (0,0) to determine which side will be shaded.

0≤0+2 is true so the side that includes the origin should be shaded.

3 0

2 years ago