Ask question

Ask question

All categories

4 years ago

12

Find x 5x-27+7x-32+9x-8

2 answers:

lord [1]4 years ago

7 0

Answer:

21x-67

Step-by-step explanation:

simplify n combine like terms

7x+5x+9x=21x

-27-32-8=-67

now combine the terms: 21x-67

hope this helps

ozzi4 years ago

4 0

Answer:

x=67/21

Step-by-step explanation:

You might be interested in

Find what y equals please (geometry) :)

pychu [463]

Answer: y=31.97°

Explanation: We can use trig ratios to find y and they are SohCahToa.

We can use Sin y, because when y is the reference angle, the 9 cm side is the opposite and the 17cm is always the hypotenuse.

We must take the inverse of Sin (9/17) to get about 31.9657, which we can round to 31.97°.

4 0

3 years ago

Help please I'm not good at math

lisabon 2012 [21]

Answer:

x=-8

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

If the integral of the quantity 4 times x minus 2 and the product of the quantity x and the quantity x plus 1 dx = (A)Ln|x| + (B

faust18 [17]

Answer:

i think 8

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

A tire manufacturer is interested in testing the fuel economy for two different tread patterns. Tires of each tread type are dri

Minchanka [31]

Using the t-distribution, it is found that the 99% confidence interval for the difference is (0.058, 3.462).

We are given the <u>standard deviation for the samples</u>, hence, the t-distribution is used to solve this question.

The standard errors are given by:

$s_A = \frac{1.79}{\sqrt{18}} = 0.4219$

$s_B = \frac{1.95}{\sqrt{18}} = 0.4596$

For the distribution of differences, the <u>mean and the standard error</u> are given by:

$\overline{x} = \mu_A - \mu_B = 23.95 - 22.19 = 1.76$

$s = \sqrt{0.4219^2 + 0.4596^2} = 0.6239$

The interval is given by:

$\overline{x} \pm ts$

The critical value for a <u>two-tailed 99% confidence interval</u> with 18 + 18 - 2 = <u>34 df</u> is t = 2.7284.

Then:

$\overline{x} - ts = 1.76 - 2.7284(0.6239) = 0.058$

$\overline{x} + ts = 1.76 + 2.7284(0.6239) = 3.462$

The 99% confidence interval for the difference is (0.058, 3.462).

For more on the t-distribution, you can check brainly.com/question/16162795

3 0

3 years ago

328 + 457 lodlIEHFlia hwkhf; hoihfehjwhfwhfwhf

kobusy [5.1K]

Answer:

785

Step-by-step explanation:

Please don't spam :)

Hope this helps!

4 0

3 years ago

Read 2 more answers