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3 years ago

Help? I'd Appreciate it!

Mathematics

1 answer:

kondor19780726 [428]3 years ago

8 0

<u>Answer</u>

y = (1/2)x - 1

<u>Explanation</u>

The first step is to get the gradient of the line.

The two points in the line are; (2,0) and (-2, -2).

Gradient = (-2 - 0)/(-2, - 2)

= -2/-4

= 1/2

To get the function we use one of the point (2,0) and a general point (x,y).

1/2 = (y - 0)/(x - 2)

1/2 = y/(x - 2)

(x - 2) = 2y

2y = x - 2

y = (1/2)x - 1

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What is 32% in fraction form

givi [52]

32% can be made into a fraction simply by placing it over 100 and simplifying.
32/100 can be simplified into 8/25.
Answer: (8/25)

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Find the slope of each line

lesya692 [45]

Answer:

1) m = -1/3

2) m = 3

3) m = -3/2

4) m = 3/2

5) m = 5/3

6) m = 7/3

7) m = -6/2 (or -3)

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3 years ago

7. Given b= 4, c = 10, and A = 34 degrees, use the Law of Cosines to solve for a. Round your answer to the nearest whole number.

egoroff_w [7]

Answer: (7) 7.0 (8) 17.3 (9) 64.7°

<u>Step-by-step explanation:</u>

Law of Cosines is: a² = b² + c² - 2bc · cos A

or: b² = a² + c² - 2ac · cos B

or: c² = a² + b² - 2ab · cos C

7) b = 4, c = 10, ∠A = 34

a² = b² + c² - 2bc · cos A

= 4² + 10² - 2(4)(10) · cos 34°

= 16 + 100 - 80 (0.829)

= 116 - 66.323

= 49.677

a = $\sqrt{49.677}$

a = 7.0

8) a = 11, b = 8, ∠C = 131

c² = a² + b² - 2ab · cos C

= 11² + 8² - 2(11)(8) · cos 131°

= 121 + 64 - 176 (-0.656)

= 185 + 115

= 300

c = $\sqrt{300}$

c = 17.3

9) a = 10.5, b = 5.9, c = 9.6

9.6² = 10.5² + 5.9² - 2(10.5)(5.9) · cos C

92.16 = 110.25 + 34.81 - 2(10.5)(5.9) · cos C

92.16 = 145.06 - 123.9 cos C

-52.9 = -123.9 cos C

0.427 = cos C

cos⁻¹ (0.427) = C

64.7° = C

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3 years ago

(01.02 LC)

ANTONII [103]

<h2>Answer:</h2><h2>x = -15</h2><h2>Hope this helps!!</h2>

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3 years ago

Multiply each of the following numbers 7.32, and 0.006 by 10, 100, and 1,000. Then explain the pattern you can use to find the p

dangina [55]

7.32

10 = 73.2

100 = 732

1000 = 7320

0.006

10 = 0.06

100 = 0.6

1000 = 6

The decimal place moves to the right depending on how many zeros the number has.

For example, if you had 0.6 multiplied by 100, you would move 2 decimal places to the right because 100 has two zeros.

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3 years ago