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2 years ago

Which expression is equivalent to 6(7x - 9)?

Mathematics

1 answer:

Alex_Xolod [135]2 years ago

5 0

Answer:

42x - 54 I think

Step-by-step explanation:

Just simplify it

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A plumber charges 14 of the cost of materials as a labor fee. If the materials for the current job cost $130.00, how much will t

Lena [83]

Answer: The answer is 0.1076923 per dollar.

Step-by-step explanation:

7 0

2 years ago

How can you solve this

natima [27]

Answer:

the answer is 10

Step-by-step explanation:

2x^2-y turns into

2*3^2-8

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2*9-8

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hope this helped if it did reply and do forget to rate thank you

5 0

3 years ago

Simplify. please7−5x−(3+5x) 4 + 10x44−10x10 + 10x

Alenkasestr [34]

Simplify the expression:

7 - 5x - (3 + 5x)

Operate the parentheses. Each term changes its signs because the minus sign represents a -1:

7 - 5x - (3 + 5x) = 7 - 5x - 3 - 5x

Collect like terms:

7 - 5x - (3 + 5x) = 7 - 3 -5x - 5x

Simplify:

7 - 5x - (3 + 5x) = 4 - 10x

Answer: 4 - 10x

8 0

1 year ago

The dataset Restaurant Tips contains data recorded from 157 restaurant bills at a bistro in New York over a two week period and

xz_007 [3.2K]

Answer: ($3.532, $4.166)

Step-by-step explanation:

Given : Significance level : $\alpha: 1-0.90=0.10$

Critical value : $z_{\alpha/2}=1.645$

Sample size : n= 157

Sample mean : $\overline{x}=\$\ 3.849$

Standard deviation : $\sigma= \$\ 2.421$

The confidence interval for population mean is given by :_

$\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

$\text{i.e. }\$\ 3.849\pm (1.64)\dfrac{2.421}{\sqrt{157}}\\\\\approx\$\ 3.849\pm0.317\\\\=(\$\ 3.849-0.317,\$\ 3.849+0.317)=(\$\ 3.532,\$\ 4.166)$

Hence, the 0% confidence interval for the average tip given at this restaurant = ($3.532, $4.166)

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2 years ago

Find the value of x and y given that p//q. Type answers alphabetically, and separate by a comma and a space

butalik [34]

Answer:

Step-by-step explanation:

8 0

3 years ago