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4 years ago

Can anyone help with this domain and range? Thank you!

Mathematics

1 answer:

nydimaria [60]4 years ago

5 0

Answer:

both are all real numbers. hope i helped!!

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The length of a rectangle is four time its width. If the permeter of the rectangle is 100yd, find i t s length and width.

seropon [69]

Answer:

So let us call the shorter side, i.e the width: 'x'

So each length is four times the width = 4x

The perimeter consists of two widths and two lengths and equals 50 inches.

So:

x+x+4x+4x=50

solve for x:

10x = 50

to find x divide both sides by 10:

10x/10 = 50/10

x=5

So width equals 5 in and length is four times this i.e. 4x5=20

To check: 5+5+20+20=50 !!!!

Step-by-step explanation:

here is your anserw for your work please rate me the most brainlest in let me know if it right

8 0

3 years ago

Brianna received an overall IQ score of 117 on the Wechsler Scale. This means that Brianna has scored approximately____________

Tresset [83]

Using the normal distribution, it is found that the correct option is:

D. 1; 100

In a <em>normal distribution</em> with mean $\mu$ and standard deviation $\sigma$ , the z-score of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

It measures how many standard deviations the measure is from the mean.

In this problem:

The mean on the Wechsler Scale is of 100, hence $\mu = 100$ .

The standard deviation is of 17, hence $\sigma = 17$ .

Brianna had an score of 117, hence $X = 117$

Then:

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{117 - 100}{17}$

$Z = 1$

Hence, the option d is correct.

To learn more about the normal distribution, you can check brainly.com/question/24663213

7 0

3 years ago

HELP PLSSSS FAST!!WILL MARK BRAINIEST IF CORRECT!!!!!

andreev551 [17]

Answer:

that i would have to go with the 1st or 3rd lne

5 0

3 years ago

Tommy went to the store to buy 13 bricks. If he left at 11:00 am and the store is 15 minutes away, what time will Tommy get back

Anon25 [30]

Answer:

11:30

Step-by-step explanation:

The store is 15 mins away, so 30 mins is the round trip.

Have a nice one.

4 0

3 years ago

Read 2 more answers

What goes in the missing spaces? Help me plz

klio [65]

Answer:

6 | 3

30 | 15

40 | 20

56 | 28

Step-by-step explanation:

You need to find out how many spring rolls will feed a single person

$\frac{6}{3}=2$

then use this to multiply by two if you want number of rolls, or divide by two if you want to get number of people that can be fed.

3 0

3 years ago