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2 years ago

Jade's room is 24 feet by 12 feet. She makes a scale drawing of 8 inches by 4 inches. What scale did she use?

Mathematics

1 answer:

8_murik_8 [283]2 years ago

5 0

Answer:

d- 1 inch=3 feet

Step-by-step explanation:

24 feet÷_=8 inches, so the blank is 3

and that fits for 12 feet too.

12 feet ÷_=4 inches, so the black is 3

So, D

Hope this helps!

And welcome to the brainly family

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In History, you earned an exam score of X-85 where the exam average was μ-65 with a standard deviation of σ-5. In Biology, you e

topjm [15]

Answer: D. History

Step-by-step explanation:

To answer this question, we need to use the z-score formula written below:

$\frac{x-pop. mean}{stan. devi.}$

Now we'll just plug in the numbers and solve.

History:

$\frac{85-65}{5} = 4$

Biology:

$\frac{90-85}{10} =0.5$

As we can see, history wields a higher z-score than biology, thus leaving us with option D. History

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3 years ago

Which of the following is the constant ratio of the relation shown in the table?

Dafna11 [192]

There is no constant ratio

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3 years ago

Read 2 more answers

The length of a text messaging conversation is normally distributed with a mean of 2 minutes and a standard deviation of 0.5 min

zhenek [66]

Answer:

Let x be a random variable representing the length of a text messaging conversation, then

P(x > 3) = 1 - P(x < 3) = 1 - P(z < (3 - 2)/0.5) = 1 - P(z < 2) = 1 - 0.97725 = 0.02275

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3 years ago

If a computer network has 60 switching nodes, in how many ways can 2 or 3 nodes fail?___________

notka56 [123]

Answer:

There are 35990 ways in which 2 or 3 nodes fail

Step-by-step explanation:

Given : A computer network has 60 switching nodes.

To Find : In how many ways can 2 or 3 nodes fail?

Solution:

We are supposed to find no. of ways can 2 or 3 nodes fail.

So, we will use combination here .

No. of ways can 2 or 3 nodes fail= $^{60}{C_2 +^{60}C_3$

Formula : $^nC_r =\frac{n!}{r!(n-r)!}$

No. of ways can 2 or 3 nodes fail= $\frac{60!}{2!(60-2)!}+\frac{60!}{3!(60-3)!}$

= $35990$

Hence there are 35990 ways in which 2 or 3 nodes fail

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3 years ago

What is the surface area of a sphere with a radius of 12 units?

dexar [7]

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$\blue\textsf{\textbf{\underline{\underline{Question:-}}}}$

What is the volume of a sphere with a radius of 12 units?

$\blue\textsf{\textbf{\underline{\underline{Answer and How to Solve:-}}}}$

$\sf{Formula \ for \ Volume \ of \ a \ sphere \ :$ $\bigstar\boxed{\bold{V=\displaystyle\frac{4}{3} \pi r^3}}$

Where

$\tt{V=Volume}\\\tt{\pi =pi}\\\tt{r=radius}$

Provided Information:-

$\tt{r=12\:units}$

Plug in:-

$\bold{V=\displaystyle\frac{4}{3} \pi (12)^3}$

$\bold{V=\displaystyle\frac{4}{3} \pi (1,728)}$

On further simplification,

$\dashrightarrow\boxed{\boxed{\underline{\bold{V=2304\pi\:m^3}}}}\dashleftarrow$

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2 years ago