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2 years ago

12

A blueprint shows the master bedroom to be 7 1/2 inches long and 6 inches wide. The scale on the blueprint is 3 in :5 ft. What i

s the area (in sq ft) of the actual bedroom?

2 answers:

Elden [556K]2 years ago

6 0

The area of the bathroom is 453.75

PIT_PIT [208]2 years ago

3 0

Answer:

The area of the bedroom is 453.75 sq ft.

Step-by-step explanation:

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Reduce to simplest form.<br> -3/2 - 3/8

svetlana [45]

Answer:

hope this help you a lot

have a great day

7 0

3 years ago

A sample of students is taken from the school's A honor roll. The school estimates that there are actually 360 students on the A

aliya0001 [1]

Answer:

360 - Y

Step-by-step explanation:

From the information provided in the question, we will understand that the question lacks detailed information.

Given that:

The total number of actual students on the A honor roll = 360

To find the number of students on the A honor roll of 8th graders;

Let denote Y to represent the total number of students who exist on the A honor roll except for the 8th graders.

Then:

The number of 8th graders = all number of students on are on the A honor roll - Y

The number of 8th graders = 360 - Y

If Y is known, then the number of the 8th graders can be fully determined.

5 0

2 years ago

The number of hours a lightbulb burns before failing varies from bulb to bulb. The population distribution of burnout times is s

liubo4ka [24]

ANSWER:

The average burnout time of a large number of bulbs has a sampling distribution that is close to Normal.

STEP-BY-STEP EXPLANATION:

The cental limit theorem states, that id the sample size is large (30 or more), then the sampling distribution of the sample means is approximately normal with mean ц and standar deviation б/ $\sqrt{n}$

Thus the correct answer is the average burnout time of a large number of bulbs has a sampling distribution that is close to Normal.

6 0

3 years ago

If you have an infinite number of red, blue, yellow, and black socks in a drawer, how many socks must you pull out of the drawer

Arada [10]

The worst case is when you pull 4 out and have 4 different colors. the 5th sock MUST match one of these. 5 is the answer

8 0

3 years ago

Prove that if r is any rational number, then 3r2 − 2r + 4 is rational. The following properties may be used in your proof. Prope

ziro4ka [17]

Given:

Expression is

$3r^2-2r+4$

To prove:

If r is any rational number, then $3r^2-2r+4$ is rational.

Step-by-step explanation:

Property 1: Every integer is a rational number. It is Theorem 4.3.1.

Property 2: The sum of any two rational numbers is rational. It is Theorem 4.3.2.

Property 3: The product of any two rational numbers is rational. It is Exercise 15 in Section 4.3.

Let r be any rational number.

We have,

$3r^2-2r+4$

It can be written as

$3(r\times r)-2r+4$

Now,

3, -2 and 4 are rational numbers by property 1.

$r^2=r\times r$ is rational by Property 3.

$3r^2\text{ and }-2r$ are rational by Property 3.

$3r^2+(-2r)+4$ is rational by property 2.

So, $3r^2-2r+4$ is rational.

Hence proved.

6 0

3 years ago