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3 years ago

What is the slope of the line that passes through these two points (1,2) (2,8) simplify

Mathematics

1 answer:

Nataly_w [17]3 years ago

6 0

Hello!

Step-by-step explanation:

Slope: $\frac{Y^2-Y^1}{X^2-X^1}=\frac{rise}{run}$

$\frac{8-2=6}{2-1=2}=\frac{6}{2}=\frac{6/2}{2/2}=\frac{3}{1}=3$

Slope is 3.

Answer is 3.

Hope this helps!

Thanks!

-Charlie

Have a great day!

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In order to solve the system of equations below, Harvey multiplies each equation by a constant to eliminate the x

Zina [86]

Answer:

14x + 6y = 10

14x + 35y = -77

Step-by-step explanation:

Multiply the top one by 2

14x + 6y = 10

Multiply the bottom one by 7

14x + 35y = -77

His next step is to subtract. You could have done this by multiplying the top one by -2

-14x - 6y = - 10

14x + 35y = -77 Now all you need do is add. The question now becomes what do you do? What answer do you give? I think the expected answer is the top two equations, but if I was actually doing the problem, I'd use the bottom 2.

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3 years ago

claim: the mean pulse rate (in beats per minute) of adult males is equal to 6969 bpm. for a random sample of 125125 adult ma

RoseWind [281]

Answer:

t=0.21

Step-by-step explanation:

Given $\bar x=69.2, s=10.9, n=125$ and a population mean $\mu=69$ .

#We state our hypothesis as:

$H_o:\mu=69\\\\H_a:\mu\neq 69$

The evidence available should validate either the null or alternative hypothesis.

#We calculate the test statistic as:

$t=\frac{\bar x-\mu_}{s/\sqrt{n}}\\\\\\=\frac{69.2-69}{10.9/\sqrt{125}}\\\\\\=0.2051$

$\approx0.21$

Hence, the test statistic is t=0.21

4 0

3 years ago

Can someone help me? Thank you!

olga_2 [115]

Answer:

I believe that the one that is NOT true is Option, letter C. Pls mark brainliest.

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3 years ago

Read 2 more answers

Solve the triangle give the measure of angle G

zalisa [80]

Answer:

G = 46 degrees

Step-by-step explanation:

Here, we want to find the measure of angle G

Mathematically, as we can see, what we have is a right triangle

For a right triangle , the sum of angles is 90 degrees

Thus, if we add the two internal angles, we get 90 degrees

Hence;

44 + G = 90

G = 90-44

G = 46 degrees

4 0

3 years ago

A quadrilateral has vertices A, B, C, and D. A line of reflection is drawn so that A is 6 units away from the line, B is 4 units

Kryger [21]

Answer:

The correct option is O B'

Step-by-step explanation:

We have a quadrilateral with vertices A, B, C and D. A line of reflection is drawn so that A is 6 units away from the line, B is 4 units away from the line, C is 7 units away from the line and D is 9 units away from the line.

Now we perform the reflection and we obtain a new quadrilateral A'B'C'D'.

In order to apply the reflection to the original quadrilateral ABCD, we perform the reflection to all of its points, particularly to its vertices.

Wherever we have a point X and a line of reflection L and we perform the reflection, the new point X' will keep its original distance from the line of reflection (this is an important concept in order to understand the exercise).

I will attach a drawing with an example.

Finally, we only have to look at the vertices and its original distances to answer the question.

The vertice that is closest to the line of reflection is B (the distance is 4 units). We answer O B'

8 0

3 years ago