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lukranit [14]
4 years ago
14

Determine the unknown side lengths’ to the nearest tenth. for the first question and also please help with question 6

Mathematics
1 answer:
Levart [38]4 years ago
7 0

Answer:

z =15cm and

y=9.0cm

Step-by-step explanation:

Use sine rule

12/ sin53 = z / sin 90

Z = 12 x sin 90 / sin 53

Z = 15cm

To find y the angle opposite to y will be 180-(90+53)=37º

So

15/sin 90= y/sin37

y= 15 x sin37 /sin 90

y = 9.0cm

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What is the equation of the line that goes through the points (- 2, 1) and (0, 4) ? (Write your answer in standard form .)
tekilochka [14]

Answer:

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Step-by-step explanation:

The slope of the line that goes through the points (-2, 1) and (0, 4) is

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The slope of the line that goes through the points (x, y) and (0, 4) is

\frac{4-y}{0-x} = \frac{4-y}{-x}

So \frac{3}{2}=\frac{4-y}{-x}\\-3x=2(4-y)=8-2y\\3x-2y+8=0

5 0
2 years ago
The rectangle shown has a perimeter of 156 cm and the given area. Its length is 6 more than five times its width.
Stells [14]
P=156 cm
l=6+5w
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156=2(6+6w)
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8 0
3 years ago
Find the missing side of this right triangle.
Alborosie

Answer:

13

Step-by-step explanation:

it's a 5,12,13 triangle

and we can find the sides by Pythagorean theorem:

a^2 + b^2 = root of c

25 + 144 = 169

root of 169 = 13

3 0
3 years ago
Express the area A of a right triangle as a function of the height h if the base of the triangle is twice it's height
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Step-by-step explanation:

4 0
1 year ago
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