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ad-work [718]
3 years ago
12

Write an equation of a line that passes through the point (2,0) and is perpendicular to the line y=−1/2x+3.

Mathematics
1 answer:
KATRIN_1 [288]3 years ago
5 0

Answer:

y = 2x - 4

Step-by-step explanation:

Perpendicular lines have opposite reciprocal slopes, so the line will have a slope of 2.

Plug in the slope and the given point into y = mx + b, and solve for b:

y = mx + b

0 = 2(2) + b

0 = 4 + b

-4 = b

Then, plug in the slope and b into y = mx + b

y = 2x - 4 is the equation of the line

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Andre has enough to fill 3500 in.3.. he decides to change the length of the step so that he will use all of the cement. What wil
Mrac [35]

Answer:

43.75 inches or 43 and 3/4 inches.

Step-by-step explanation:

Ok, thanks for the complement of information.

So, to find the volume of that step, which is a rectangular prism, we would use the simple formula:

V = length *  width * height

In this case, we have the total volume (3,500 cu in), we have the width (10 inches)  and we have the height (8 inches).  But we need to find out the new length in order for him to use all 3,500 cu in of cement.

So, we transform the formula above into:

length = V / (width * height)

then we plug-in the numbers:

length = 3,500 / (8 x 10) = 3,500 / 80 = 43.75

So, the new length of the step would be 43.75 inches or 43 and 3/4 inches.

7 0
3 years ago
Which measurement would not be used to calculate the area of this triangle?
bonufazy [111]

Answer:

Im not sure but i think 2 is the answer

Step-by-step explanation:

5 0
3 years ago
Using data from a study, we find a significant difference in the proportion of fruit flies surviving after 13 days between those
mestny [16]

The hypothesis shows that we have evidence that the proportion surviving after eating organic is higher.

<h3>How to illustrate the information?</h3>

The following can be deduced from the information:

x1 = 275

x2 = 170

n1 = 500

n2 = 500

The sample proportion will be:

p1 = 275/500 = 0.55

p2 = 170/500 = 0.34

The pooled proportion will be:

= (275 + 170)/(500 + 500)

= 0.44

The test statistic is 6.681. It should be noted that the test statistics is a number that's calculated by a statistical test. It shows how the observed data are far from the null hypothesis.

The p value in this scenario is extremely small. The p value is a measurement used to validate a hypothesis against the observed data. Therefore, we have to reject the null hypothesis.

In this case, the hypothesis shows that we have evidence that the proportion surviving after eating organic is higher.

Learn more about hypothesis on:

brainly.com/question/15980493

#SPJ1

8 0
2 years ago
Solve for x: 3 &lt; x + 3 &lt; 6 45 points.
irinina [24]

Answer:

0 < x < 3

Step-by-step explanation:

3 < x + 3 < 6    (Subtract 3 from all terms)

0 < x < 3    (The third option is the answer)

3 0
3 years ago
Read 2 more answers
Y varies directly as x . If y is 2 when x is 8, then the constant of variation is 1/4 . True or False
dedylja [7]

When y = 2, x = 8.

This can be written as: 2/8.

Simplified: 1/4

True


3 0
3 years ago
Read 2 more answers
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