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kow [346]
3 years ago
15

When

Mathematics
1 answer:
bekas [8.4K]3 years ago
6 0
The correct answer is w=8x2 - y
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A line with a slope of -2 passes through the points (0,d) and (-8,9). What is the value of d?
Verizon [17]

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

We have m = -2 and the points (0, d) and (-8, 9). Substitute:

\dfrac{9-d}{-8-0}=-2\\\\\dfrac{9-d}{-8}=-2\qquad\text{multiply both sides by (-8)}\\\\9-d=16\qquad\text{subtract 9 from both sides}\\\\-d=7\qquad\text{change the signs}\\\\\boxed{d=-7}

4 0
3 years ago
Find the slope (4, -1) and (-2, 3)
Yuliya22 [10]
Answer: -2/3

3-(-1) over
-2-4
This equals 4/-6 which reduces to -2/3
5 0
2 years ago
Read 2 more answers
Please help me out with this
Anettt [7]

Answer:

81.75 ft²

Step-by-step explanation:

The area (A) of a trapezoid is calculated using the formula

A = \frac{1}{2} h (a + b)

where a, b are the parallel bases and h is the perpendicular height

Calculate h using the right triangle and the sine ratio

sin30° = \frac{opposite }{hypotenuse} = \frac{h}{10}

Multiply both sides by 10

10 × sin30° = h, thus

h = 5

a = 12 and b = 8.7 + 12 = 20.7, hence

A = \frac{1}{2} × 5 × (12 + 20.7)

   = 0.5 × 5 ×32.7

   = 81.75 ft²

7 0
3 years ago
Ria was given $42.30 to babysit for 2.5 hours. How much did she get for one hour?
Law Incorporation [45]

Answer:

$16.92

Step-by-step explanation:

Just divide 42.30 by 2.5 and it will give you the answer

8 0
3 years ago
Please will give brainliest and thanks for the problem
8_murik_8 [283]

Answer:

x=6

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
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