Ask question

Ask question

All categories

3 years ago

15

Determine the Domain & Range of the Function

1 answer:

Advocard [28]3 years ago

6 0

Answer:

look dude or girl (just incase) I know the answer but since your parents and teachers want the best for you. You need to do it on your own.

Step-by-step explanation:

You might be interested in

Please help me! Show work thank you so much

Nadya [2.5K]

A quadrilaterals angles = 360°

three angles are given, with the fourth as x: 90, 80, 74, x

Add all the angles together and set it equal to 360

90 + 80 + 74 + x = 360

Simplify. Combine like terms

x + 244 = 360

Isolate the x, subtract 244 from both sides

x + 244 (-244) = 360 (-244)

x = 360 - 244

x = 116

116° is your answer

hope this helps

6 0

3 years ago

The greatest common factor of 36 and 45

elena55 [62]

I believe the answer is 9

4 0

4 years ago

Six workers can contruct a kitchen in 17 hours. How long should it take 9 workers to contruct the kitchen

3241004551 [841]

It would be 8 and a half hours.

4 0

3 years ago

According to Scarborough Research, more than 85% of working adults commute by car. Of all U.S. cities, Washington, D.C., and New

tamaranim1 [39]

Answer:

The 99% confidence interval for the mean commute time of all commuters in Washington D.C. area is (22.35, 33.59).

Step-by-step explanation:

The (1 - <em>α</em>) % confidence interval for population mean (<em>μ</em>) is:

$CI=\bar x\pm z_{\alpha /2}\frac{\sigma}{\sqrt{n}}$

Here the population standard deviation (σ) is not provided. So the confidence interval would be computed using the <em>t</em>-distribution.

The (1 - <em>α</em>) % confidence interval for population mean (<em>μ</em>) using the <em>t</em>-distribution is:

$CI=\bar x\pm t_{\alpha /2,(n-1)}\frac{s}{\sqrt{n}}$

Given:

$\bar x=27.97\\s=10.04\\n=25\\t_{\alpha /2, (n-1)}=t_{0.01/2, (25-1)}=t_{0.005, 24}=2.797$

*Use the <em>t</em>-table for the critical value.

Compute the 99% confidence interval as follows:

$CI=27.97\pm 2.797\times\frac{10.04}{\sqrt{25}}\\=27.97\pm5.616\\=(22.354, 33.586)\\\approx(22.35, 33.59)$

Thus, the 99% confidence interval for the mean commute time of all commuters in Washington D.C. area is (22.35, 33.59).

8 0

3 years ago

A,b & c form a triangle where BAC =90 degrees AB=7.5 mm BC=16.7mm find the length of AC giving your answer rounded to 1DP

svet-max [94.6K]

Answer:

18.3mm

Step-by-step explanation:

using pythagoras

AC = $\sqrt{7.5^{2} + 16.7^{2} }$

AC = 18.3 mm

4 0

3 years ago