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3 years ago

Calculate the slope of the line through the points M(-2, -1) and N(0, -13).

Mathematics

1 answer:

galina1969 [7]3 years ago

6 0

Answer:-6

Step-by-step explanation:

to solve for slope, you have to do (y1-y2)/(x1-x2)

in this problem, that turns into (-1-(-13))/(-2-0)

which is (-1+13)/(-2-0) which is 12/-2 which is -6, your answer

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Solve using elimination.<br> 4x + y = -5<br> 8x + 3y = -19

umka21 [38]

I’ll help you with yours if you help me with mine

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3 years ago

Sea World has 9 aquariums with small fish in them and the number of fish in each tank are shown below: 45, 10, 48, 19, 36, 25, 6

crimeas [40]

Answer:

Step-by-step explanation:

To find the range, subtract the lowest number from the highest number

Arrange the numbers from least to greatest

45, 10, 48, 19, 36, 25, 63, 14, 37

10, 14, 19, 25, 36, 37, 45, 48, 63

The highest number is 63, and the lowest is 10

Now, subtract the lowest (10) from the highest (63)

highest - lowest

63-10

So, the range of the number of fish is 53

4 0

4 years ago

What percent of 8 is 6

vodomira [7]

if we take 6 to be the 100%, what is 8 off of it in percentage?

$\begin{array}{ccll} amount&\%\\ \cline{1-2} 6&100\\ 8&x \end{array}\implies \cfrac{6}{8}=\cfrac{100}{x}\implies \cfrac{3}{4}=\cfrac{100}{x} \\\\\\ 3x=400\implies x=\cfrac{400}{3}\implies x=133.\overline{3}$

8 0

3 years ago

AB is tangent to the circle at B. M∠A=40 and mBC=130. <br> a. Find x <br> b. Find y

soldi70 [24.7K]

The values for x and y are respectively given as

x = 50
y= 90

This is further explained below.

<h3>What is the values for x and y ?</h3>

Generally, the equation for secent is mathematically given as

$secent = \frac{big arc - small arc}{2}$

Therefore

$40 = \frac{130-x}{2}$

80 = 130-x

x = 50

b) To Solve for y Now we find a measure of arc CD

ArcCD = 360-130-50

ArcCD = 180

In conclusion,(1/2) of the arc measure is equal to the angle that is on and inside a circle.

y = 180/2

y= 90