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4 years ago

12

Is this expression a perfect square trinomial?

1 answer:

Katyanochek1 [597]4 years ago

6 0

Yes it is (10x-y)^2 is the answer of it

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I'm not sure how to do this, help?

Andrei [34K]

X*26=180 subtract 26 from 180 then you will find x.

7 0

3 years ago

Sally wants to buy a cell phone. The price of the cell phone she had wanted had increased from $200 last week to $240 this week.

notsponge [240]

20%

200 divided by 5 equals 40

4 0

2 years ago

A survey of 1,000 men and women asked, "Do you earn over $50,000 per year?" The table below shows the responses for males and fe

frutty [35]

Male Female    Total
Income over $50,000   485 385   870
Income below $50,000 65   65 130
<span>Total   550 450   1,000

Probability of being male: 550/1000 = 0.55
Probability of earning over $50,000: 870/1000 = 0.87

0.55 x 0.87 = 0.4785

Probability of being male and earning over $50,000: 485/550 = 0.8818

</span><span>C) No, P(being male | the person earns over $50,000) ≠ P(being male)</span><span>

</span>

7 0

3 years ago

Read 2 more answers

For each question, calculate the slope of a line that passes through the points

LekaFEV [45]

I don’t know it’s hard tho

8 0

3 years ago

A system of equations consists of a line s of the equation y = x – 5 and a line t that passes through the points (0, 2) and (8,

GenaCL600 [577]

Answer:

$\text{The slope of the line t:}\ m=-\dfrac{3}{4}\\\\\text{The y-intercept of the line t:}\ b=2\\\\\text{The equation of a line t in the slope-intercept form:}\ y=-\dfrac{3}{4}x+2$

Step-by-step explanation:

The slope-intercept form of an equation of a line:

$y=mx+b$

m - slope

b - y-intercept → (0, b)

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

We have two points (8, -4) and (0, 2) → b = 2.

Calculate the slope:

$m=\dfrac{2-(-4)}{0-8}=\dfrac{6}{-8}=-\dfrac{3}{4}$

Therefore the equation of a line t in the slope-intercept form is:

$y=-\dfrac{3}{4}x+2$

5 0

3 years ago

Read 2 more answers