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aksik [14]
3 years ago
14

Help me please I don’t know the answer

Mathematics
1 answer:
Rom4ik [11]3 years ago
6 0

Answer:

The area of a circle is 28.26 yd 2

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What is the slope of a line perpendicular to the line whose equation is 3x+6y=-183x+6y=−18. Fully reduce your answer.
schepotkina [342]

Answer:

2

Step-by-step explanation:

The given equation of line is

3x+6y=-18

We need to find the slope of a line which is perpendicular to the given line.

The given equation can be rewritten as

3x+6y+18=0      ...(i)

If a line is defined as ax+bx+c=0, then the slope of the line is  

m=-\dfrac{a}{b}

In equation (i), a=3, b=6 and c=18. So, slope of the line is

m_1=-\dfrac{3}{6}=-\dfrac{1}{2}

Let m_2 be the slope of perpendicular line.

We know that product of two perpendicular line is -1.

m_1\cdot m_2=-1

(-\dfrac{1}{2})\cdot m_2=-1

Multiply both sides by -2.

m_2=2

Therefore, the slope of perpendicular line is 2.

6 0
3 years ago
H + 14.8 = −14.8 solve for h
Slav-nsk [51]

Answer:

h= -29.6

Step-by-step explanation:

trust me!!

7 0
2 years ago
Read 2 more answers
Subtract (4x^2 + x + 8) - (2x^2 + 3x - 1)
Ludmilka [50]

Answer:

2x^2-2x+9

Step-by-step explanation:

5 0
3 years ago
How do you solve this ?
quester [9]
3x + 7 > 4x + 3

subtract 3x from both sides

7 > x + 3

7 - 3 > x

x < 4
8 0
3 years ago
the total entry price of the top of the Eiffel Tower during the low season of 95 Euros for 4 students and five teachers the tota
tamaranim1 [39]

Answer:

74.30

Step-by-step explanation:

Let s = entry price for a student

Let t = entry price for a teacher

4s +5t = 95

6s+10t = 173

I will use elimination to solve this problem.

Multiply the first equation by -2

-2(4s +5t) = -2*95

Distribute

-8s - 10t = -190

Add this equation to the second equation to eliminate t

-8s - 10t = -190

6s+10t = 173

----------------------

-2s = -17

Divide by -2

-2s/-2 = -17/-2

s = 8.50

Now we need to find t

4s +5t = 95

Substitute s=8.50

4(8.50) +5(t) = 95

34 +5t = 95

Subtract 34 from each side

34-34 +5t = 95-34

5t = 61

Divide by 5

5t/5 = 61/5

t = 12.20

We want to find the cost for 3 students and 4 teachers

3s+4t

3(8.50) + 4(12.20)

25.50 + 48.80

74.30


6 0
3 years ago
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