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Damm [24]
3 years ago
14

A particular computer takes 12 minutes to download a 36​-minute TV show. How long will it take the computer to download a 2​-hou

r ​movie
Mathematics
1 answer:
Anestetic [448]3 years ago
7 0
<span>A particular computer takes 12 minutes to download a 36​-minute TV show. How long will it take the computer to download a 2​-hour ​movie

that would take 40 minutes</span>
You might be interested in
Simplify:<br><br> 20 - 2 × 8 + 42<br> A. <br> 20<br> B. <br> 160<br> C. <br> 52<br> D. <br> 26
Gnom [1K]

Answer: 46

Step-by-step explanation:

You can simplify this using PEMDAS:

Parentheses

Exponents

Multiplication/division

Addition/subtraction

Move through the steps in that order.

In this case, the first two steps are absent, so multiply first:

20 - 16 + 42

Then, add and subtract:

46.

5 0
3 years ago
Given f(x)=10-2x, find f(7)
mylen [45]

Answer:

f(7)=10-14=-4

Answer=-4

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
A different species of cockroach has weights that are approximately Normally distributed with a mean of 50 grams. After measurin
Ratling [72]

Answer:

The standard deviation of weight for this species of cockroaches is 4.62.

Step-by-step explanation:

Given : A different species of cockroach has weights that are approximately Normally distributed with a mean of 50 grams. After measuring the weights of many of these cockroaches, a lab assistant reports that 14% of the cockroaches weigh more than 55 grams.

To find : What is the approximate standard deviation of weight for this species of cockroaches?

Solution :

We have given,

Mean \mu=50

The sample mean x=55

A lab assistant reports that 14% of the cockroaches weigh more than 55 grams.

i.e. P(X>55)=14%=0.14

The total probability needs to sum up to 1,

P(X\leq 55)=1-P(X>55)

P(X\leq 55)=1-0.14

P(X\leq 55)=0.86

The z-score value of 0.86 using z-score table is z=1.08.

Applying z-score formula,

z=\frac{x-\mu}{\sigma}

Where, \sigma is standard deviation

Substitute the values,

z=\frac{x-\mu}{\sigma}

1.08=\frac{55-50}{\sigma}

1.08=\frac{5}{\sigma}

\sigma=\frac{5}{1.08}

\sigma=4.62

The standard deviation of weight for this species of cockroaches is 4.62.

4 0
3 years ago
Carolyn says that point A and point B represent opposite integers. a. What is the opposite of the integer represent by point A?
zysi [14]

we are given

point-A= -7

point-B=8

(a)

opposite of point-A is negative of point-A value

so,

opposite of point-A is -(-7)

opposite of point-A is 7

opposite of point-B is negative of point-B value

so,

opposite of point-B is -8

opposite of point-B is -8

(b)

we can see that

opposite of point-A is 7

opposite of point-B is -8

they are not equal

so, this argument is FALSE.......Answer

4 0
3 years ago
Write “400 pounds per 340 square feet” as a rate in simplest form
quester [9]
I think its 20 pounds per 17 square feet (simplest form) 
8 0
3 years ago
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