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Leno4ka [110]
1 year ago
12

Calculate the rate of change (slope) for the given line. 20 2 о

Mathematics
2 answers:
kati45 [8]1 year ago
8 0

Answer:

\sf slope =\dfrac{-3}{2}

Step-by-step explanation:

To find the slope, mark any two point on the line.

  (-2, 4)  ; (2 , -2)

\sf x_1 = -2 ; \  y_1 = 4 \\\\x_2 = 2 ; \ y_2 = -2 \\\\ \boxed{\bf Slope = \dfrac{y_2-y_1}{x_2-x_1}}

           \sf = \dfrac{-2-4}{2-[-2]}\\\\=\dfrac{-6}{2+2}\\\\=\dfrac{-6}{4}\\\\=\dfrac{-3}{2}

ruslelena [56]1 year ago
8 0

Answer:

Slope is equal to -3/2.

Step-by-step explanation:

Finds two points on an exact point. For the case of demonstration, I'll use (2, -2) and (0, 1).

Now, you can either use a formula, or do the rise-over-run method. For the formula, it would be (y2 - y1) / (x2 - x1) = slope.

For this example, the equation would be (1 - (-2) / (0 - 2). Cancel out the negatives in the numerator, and you'd get (3) / (-2). This is equivalent to -3/2.

For the rise over run method, you count how many units it goes down and over. Using the same points, to get from one to the other, you need to go down three units and to the right to. Since we're decreasing, the three is negative. The "rise," or whatever increase/decrease it is, will go in the numerator, while the "run" will go in the denominator.

This would also get you -3/2. Ask your teacher whether or not they're fine with the rise-over-run method, because a few teachers require algebraic use.

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The Japanese 5 yen coin has a hole in the middle. If the diameter of the coin is 22 mm and the diameter of the hole is 5 mm, how
Yanka [14]

Answer:

4.4mm

Step-by-step explanation:

Circumference of circle

2 Pi r

Diameter of coin = 22mm

Therefore the radius = 11mm

Therfroe the outer edge (circumference)

= 2 Pi r

= 2 x Pi x 11

=69.11mm

For the inner edge

Diameter = 5

Radius = 2.5

Therefroe inner edge (circumference)

= 2 Pi r

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The difference is

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7 0
3 years ago
Ebba is buying bulk fabric.
-Dominant- [34]

Answer:

To find the cost per yard, divide the cost by the amount:

p: 6.25 / 6.5 = 0.96  -->  The cost per yard is $0.96

r: 3 /4 = 0.75  -->  The cost per yard is $0.75

b: 8.1 /8.5 = 0.95  -->  The cost per yard is $0.95

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In order from cheapest to most expensive:

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8 0
3 years ago
The freezing point of methanol is -97.6. What is the freezing point of methanol in Fahrenheit
motikmotik

Answer:

-143.68°F

Step-by-step explanation:

Celsius to Fahrenheit Conversion Formula: F = 1.8C + 32

Simply plug in <em>c</em> as -97.6:

F = 1.8(-97.6) + 32

F = -175.68 + 32

F = -143.68

3 0
3 years ago
Read 2 more answers
Please help I’ll mark you as brainliest if correct!
Luden [163]
It would be B. I took a test with this
7 0
2 years ago
Bonny's grandparents travel.
lisabon 2012 [21]

Answer:

they sent about 260 / exactly 260

Step-by-step explanation:

Bonny's grandparents travel.

They sent her 138 cards from the United State, and 122 from Europe.

1. About how many cards have they sent her?

2. Exactly how many cards have they sent her?

138 + 122 = 260

7 0
3 years ago
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