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mrs_skeptik [129]
3 years ago
13

What is the value of h?

Mathematics
2 answers:
4vir4ik [10]3 years ago
4 0

Answer:

h=9

Step-by-step explanation:

(3h+18)° + (15h)° =180 because they form straight agle together

Solve for h:

3h+18 + 15h =180

18h=180-18

h= 162/18

h=9

Andreyy893 years ago
3 0

Answer:

3h+18°+15h= 180°(straight angle)

=>18h+18= 180°

=>18h= 180-18° = 162°

=>h= 162°/18= 9

option B

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The answer is D

Step-by-step explanation:

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3 years ago
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Need help.
aev [14]

Answer:

1. y= 3x+7

2.y=1/2 x -1

Step-by-step explanation:

1.

Parallel lines have the same gradient.In the equation given,

y= 3x+5 , the slope is 3

So now, you find the equation of a line passing through point (-1,4) with m=3

m=Δ y/Δx

3= y-4/ x--1

3= y-4 /x+1

3(x+1) = y-4

3x+3 =y-4

3x+3+4=y

⇒⇒ y= 3x+7   is the equation.

2.

Two lines that are perpendicular to each other have the product of their slopes to be -1

Given equation to be y= -2x +8 then, m₁ = -2

Finding m₂ will be;

m₁ *m₂ = -1

-2 * m₂ = -1

-2 m₂ = -1

m₂ = -1/-2 = 1/2

So writing the equation of the perpendicular line with m₂ =1/2 , point (-4,-3)

will be;

m=Δy/Δx

1/2=y--3/x--4

1/2 = y+3/x+4

x+4 = 2( y+3)

x+4 = 2(y+3)

x+4 =2y+6

x+4-6=2y

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5 0
3 years ago
Sara needs $90 to have enough money and Rachel needs $405 to have enough money. If they combine their money they will have enoug
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Answer: The price of item is $495.

Step-by-step explanation:

Since we have given that

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Amount that Rachel have = $405

If they combine their money they will have enough to buy item.

So, Price of item would be

Amount that Sara have + Amount that Rachel have

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Hence, the price of item is $495.

5 0
3 years ago
Simplify the following expression. 4 (x-2) - 3 (x-2)​
Alex17521 [72]

Answer: x-2

Step-by-step explanation:

Given

4(x-2)-3(x-2)

Distributive property

=4x-8-3x+6

Move the like terms together

=4x-3x-8+6

combine like terms. REMEMBER you need to change signs if it is negative signs outside

=x-(8-6)

Simplify

=x-2

Hope this helps!! :)

Please let me know if you have any question.

3 0
3 years ago
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