2 years ago

Write a linear equation from the points (-4,-13) and (3,1)

Mathematics

1 answer:

sveta [45]2 years ago

8 0

Y+13=-12(x+4) is the answer

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If AD is the altitude to BC, what is the slope of AD?

anygoal [31]

Answer:

Option (C)

Step-by-step explanation:

If AD is the altitude to BC, both the segments AD and BC will be perpendicular to each other.

By the property of perpendicular lines,

$m_1\times m_2=-1$

where $m_1$ is the slope of the line AD and $m_2$ is the slope of BC.

$m_2=\frac{y_2-y_1}{x_2-x_1}$

$=\frac{8+2}{3-7}$

$=-\frac{5}{2}$

Now from the given property,

$m_1\times (-\frac{2}{5})=-1$

$m_1=\frac{5}{2}$

Therefore, slope of altitude BC = $\frac{5}{2}$

Option (C) will be the answer.

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3 years ago

Employee I has a higher productivity rating than employee II and a measure of the total productivity of the pair of employees is

Schach [20]

Answer:

The variance of the measure of productivity = 141.67(to 2 d.p)

Step-by-step explanation:

The complete question and the step-by step explanation are contained in the files attached to this solution.

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2 years ago

A scientists finds the bones of a dinosaur. What could help the scientists determine the approximate age of the dinosaur bones?

Julli [10]

Answer: B, the index fossils in the area of the bones.

(I do need 1 more brainliest to rank up, so if my answer is correct, that would be great, sorry if I sound rude.)

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2 years ago

Answer ?? It’s multiplicity

EleoNora [17]

I think A is the answer

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2 years ago

Decrease seventy-two hundredths by two tenths. Write the equation used to solve this problem

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0.72
- .20
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0.52 (.20 is two tenths)

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