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natulia [17]
3 years ago
15

A line goes through the points (-3,-6) and (6,9). Find the slope

Mathematics
1 answer:
aliya0001 [1]3 years ago
3 0

Answer:

5/3

Step-by-step explanation:

slope = (difference in y)/(difference in x) = (-6 - 9)/(-3 - 6) = -15/(-9) = 5/3

Answer: 5/3

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Please help me. Noura is redecorating her house. She needs to work out the area of the wall around her triangular window in orde
Vinvika [58]

Answer:

a. 277.3 m²

b. $307.86

Step-by-step explanation:

a. Area of the wall to be painted = area of rectangle - area of triangle

= L × W + ½×a×b×sin θ

L = 17 m

W = 14 m

a = 8.7 m

b = 9.5 m

θ = 72°

Plug in the values into the equation

Area of the wall = (17×14) + (½*8.7×9.5×sin 72)

Area of the wall = 238 + 39.3024105

Area of the wall to paint ≈ 277.3 m²

b. 20 liters of paint of 1 container cost $21.99

If 1 liter of paint covers 1m², therefore,

277.3 m² will need = 277.3 × 1 = 277.3 liters of paint.

20 liters = 1 container of paint

277.3 liters = 277.3/20 = 13.865 ≈ 14 containers

1 container = $21.99

14 containers = 21.99 × 14 = $307.86

8 0
2 years ago
Which best represents the solution for the inequality-100 > -5y
Ira Lisetskai [31]
Y > 20

Hope this helps! Message back for an explanation:)
8 0
3 years ago
Please help 40 POINTS
Kamila [148]

Answer:

2.66l

Step-by-step explanation:

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6 0
2 years ago
Read 2 more answers
Simplify: − 7( 21 − 16) + 3(9) (24 − 18)
Mekhanik [1.2K]
The answer to the problem is 127
6 0
3 years ago
Read 2 more answers
Find the conjugate and product of<br><br>2-i5 ​
WITCHER [35]

Answer: 2+i5,\ 29

Step-by-step explanation:

Given

Complex number is 2-i5

Its conjugate is obtained by changing the sign of the original number i.e. 2+i5

The product of the two numbers is

\Rightarrow (2-i5)(2+i5)=2^2-(5i)^2\quad \quad [(x+y)(x-y)=x^2-y^2]\\\\\Rightarrow (2-i5)(2+i5)=4-25i^2\\\\\Rightarrow (2-i5)(2+i5)=4+25=29

3 0
2 years ago
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