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3 years ago

Below are two parallel lines with a third line intersecting them

Mathematics

1 answer:

liq [111]3 years ago

4 0

I’m not sure but since the two lines are parallel then I would say105

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Simplify |−19+9|/3−|14−22|/9.

aliina [53]

Answer:

2¾

Step-by-step explanation:

$\\ \sf \frac{ | - 19 + 9| }{3} - \frac{ |14 - 22| }{9}$

$\\ \sf = \frac{ | - 10| }{3} - \frac{ | - 8| }{9}$

$\\ \sf = \frac{10}{3} - \frac{8}{9}$

$\\ \sf = \frac{30 - 8}{9}$

$\\ \sf = \frac{22}{8}$

$\\ \sf = \frac{11}{4}$

$\\ \sf = 2 \frac{3}{4}$

6 0

3 years ago

1+1+7+8+5+7+1+1+7+5+3+4

Gnesinka [82]

Answer:

a number

Step-by-step explanation:

8 0

4 years ago

Read 2 more answers

What is an equation of a line that passes through the point (3,-1) and has a slope of 2

kogti [31]

Answer:

y=2x-7

Step-by-step explanation:

y-y1=m(x-x1)

y-(-1)=2(x-3)

y+1=2x-6

y=2x-6-1

y=2x-7

8 0

3 years ago

Apply the distributive property to factor out the greatest common factor.<br> 90+27=

solniwko [45]

Answer:

9 (10+3)

Step-by-step explanation:

90 = 9*10 = 9*5*2

27 = 9*3

The greatest common factor is 9

9 (10+3)

6 0

3 years ago

Read 2 more answers

Determine the minimum sample size required when you want to be 99% confident that the sample mean is within 0.50 units of the po

vfiekz [6]

Answer:

b. 224

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.99}{2} = 0.005$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.005 = 0.995$ , so $z = 2.58$

Now, find the margin of error M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

In this problem:

We want to find n, when $M = 0.5, \sigma = 2.9$ So

$M = z*\frac{\sigma}{\sqrt{n}}$

$0.5 = 2.58*\frac{2.9}{\sqrt{n}}$

$0.5\sqrt{n} = 7.482$

$\sqrt{n} = 14.964$

$(\sqrt{n})^{2} = (14.964)^{2}$

$n = 223.9$

The nearest integer number to 223.9 is 224.

So the correct answer is:

b. 224

6 0

3 years ago

Below are two parallel lines with a third line intersecting them￼

Below are two parallel lines with a third line intersecting them