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2 years ago

Find the are of each square.

Mathematics

1 answer:

Over [174]2 years ago

4 0

Step-by-step explanation:

Just square the given sides.

3^2=9 m^2

4^2=16 m^2

5^2=25 m^2

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1¾-2¼<br>pls give me formula

sweet-ann [11.9K]

Answer:

=7/4 - 9/4 = -2/4

Step-by-step explanation:

1¾ = (4×1+3)/4

2¼ = (4×2+1)/4

5 0

3 years ago

Read 2 more answers

Y= 1/2x+ 2 to make the x the subject.

timofeeve [1]

Answer:

$x=2y-4$

Step-by-step explanation:

$y=\frac{1}{2} x+2$

"To make x the subject" means to have the equation with all the terms in x on one side. As of now, y is the subject of the equation.

You start by subtracting 2 from both sides, you should get the following.

$y-2=\frac{1}{2} x$

Then you multiply by 2 from both sides, you should end up with the following.

$2(y-2)=x$

Therefore, you get the following.

$x=2(y-2)$

Finally, you distribute and get the answer.

$x=2y-4$

5 0

2 years ago

Use the points (2,-5) and (-1,4) and determine the slope using the slope formula

Rama09 [41]

(2,-5),(-1,4)
slope = (4 - (-5) / (-1 - 2) = (4 + 5) / -3 = -9/3 = -3 <==

6 0

3 years ago

A parking lot in the shape of a trapezoid has an area of 12052.1 square meters. The length of one base is 82.4 meters, and the l

vagabundo [1.1K]

82.4+108.6=191 and 12052.1 divided by 191=63.1

So the answer is 63.1

8 0

3 years ago

A professor at a university wants to estimate the average number of hours of sleep the students get during exam week. The profes

balandron [24]

Answer:

The sample size is $n = 2$

Step-by-step explanation:

From the question we are told that

The margin of error is E =4.266

The standard deviation is $\sigma = 2.539$

From the question we are told the confidence level is 99% , hence the level of significance is

$\alpha = (100 - 99 ) \%$

=> $\alpha = 0.01$

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

$Z_{\frac{\alpha }{2} } = 2.58$

Generally the sample size is mathematically represented as

$n = [\frac{Z_{\frac{\alpha }{2} } * \sigma }{E} ] ^2$

=> $n = [\frac{2.58 * 2.539 }{4.266} ] ^2$

=> $n = 2$

6 0

2 years ago