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enot [183]
3 years ago
8

Ill give you brainliest>>>Write an equation of the line passing through the point (5, 2) that is perpendicular to the l

ine −x+3y=12.
The equation of the line is y= x+
Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
6 0

y= mx+b

(16, -7) = (x,y)

2(16) - 3y = 12

32 - 3y = 12

32 - 12 = 3y

20/3 = y

6.6 = y

2x-3(-7) = 12

2x+21 = 12

2x = 12 - 21

x = -9/2

Insert the values into y = mx + b

solve for m and then solve for b

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A mining company estimates that the marginal cost of extracting x tons of copper ore from a mine is 0.6 + 0.008x, measured in th
Serhud [2]

Answer:

The cost of extracting the first 50 tons of copper is $151,000.

Step-by-step explanation:

Start-up costs of $150,000.

For the 50 tons of cooper.

C(x) = 0.6 + 0.008x

So

C(50) = 0.6 + 0.008*50 = 1

1 thousand dollars.

So

$150,000 + $1,000 = $151,000

The cost of extracting the first 50 tons of copper is $151,000.

8 0
3 years ago
Calculate the Area of each of the following Figures:​
kotegsom [21]

Answer:

2.2.1 Area = 12.6 cm²

2.2.2 Area = 12 cm²

Step-by-step explanation:

<u></u>

<u>2.2.1:</u>

The radius of the big circle is half the length of the square = 2.5 cm

The radius of the small circle is half of 3 cm = 1.5 cm

The area of the shaded portion is = Area of big circle - Area of small circle

π × 2.5²-π × 1.5² = 12.6 cm²

<u>2.2.2</u>

To find length BD (the height of the parallelogram) we need to use the Pythagorean theorem:

BD = √(5²-3²) = 4

Area = base x height = 3x4 = 12 cm²

3 0
1 year ago
Find the slope of the line
adoni [48]

Answer:

m = (6-5)/(4-1)

m = 1/3

.............

3 0
2 years ago
If 2:7 is expressed in the form for 4. Find the value of x.​
Lelechka [254]

Answer:

x = 14

Step-by-step explanation:

Given that,

2:7 is expressed in the form for 4:x.

We need to find the value of x.

2:7 must be equated to 4:x.

So,

2:7=4:x\\\\or\\\\\dfrac{2}{7}=\dfrac{4}{x}\\\\x=\dfrac{7\times 4}{2}\\\\x=14

So, the value of x is equal to 14.

5 0
2 years ago
247.80÷5=? rounded and what would you get if you÷ the? by 5
cricket20 [7]
257.80÷5=49.56 ≈50
50÷5=10
5 0
3 years ago
Read 2 more answers
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