All categories

4 years ago

1 -For what value of x is line a parallel to line b

Mathematics

1 answer:

IgorC [24]4 years ago

4 0

Answer:

1) x = 17, line a parallel to line b

2) x = 18, line a parallel to line b

Step-by-step explanation:

If line a parallel to line b then (10x - 40) + 50 = 180

Solve for x

10x - 40 + 50 = 180

Combine like terms

10x + 10 = 180

10x = 170

x = 17

x = 17, line a parallel to line b

-------------------------------------------------

If line a parallel to line b then 5x - 16 = 74

Solve for x

5x - 16 = 74

5x = 90

x = 18

x = 18, line a parallel to line b

You might be interested in

What is the solution to the following equation?

Snowcat [4.5K]

Answer:

A. x=13

Step-by-step explanation:

$x + 11 = 24 \\ x = 24 - 11 \\ x = 13$

5 0

3 years ago

Please help me with the problem

Arisa [49]

Nick is incorrect because he subtracted 3-1 and 3-2. The answer is 1 3/4 It is that distance because 3 2/4-1 3/4=1 3/4.

8 0

3 years ago

When obtaining a confidence interval for a population mean in the case of a finite population of size N and a sample size n whic

Elanso [62]

Answer:

95% Confidence interval for the mean

$142.8 \leq\mu\leq158.4$

Step-by-step explanation:

We have to calculate a 95% confidence interval for the mean of a finite population.

The error is multiplied by the following finite population correction factor:

$cf=\sqrt{\frac{N-n}{N-1} }$

The standard deviation can be estimated as

$\sigma=\frac{s}{\sqrt{n}} \sqrt{\frac{N-n}{N-1} } =\frac{24.4}{\sqrt{32} }* \sqrt{\frac{200-32}{200-1} }=3.963$

The 95% confidence interval has a z value of 1.96, so it becomes:

$M-z*\sigma_c\leq\mu\leq M+z*\sigma_c\\\\150.6-1.96*3.963\leq\mu\leq 150.6+1.96*3.963\\\\ 142.8 \leq\mu\leq 158.4$

5 0

3 years ago

Hi need help PLEASE

Mariulka [41]

The answer is B.

hope i helped

5 0

3 years ago

“I think of a number and divide it by 5. The answer is 20.”

muminat

Answer: 100

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers