All categories

3 years ago

Can someone help me with this question ASAP

Mathematics

1 answer:

sattari [20]3 years ago

3 0

Let m be the slope:

m=(y₂-y₁)/(x₂-x₁)

solve for c:

1/6=(9-c)/(1-7)

1/6=(9-c)/-6

-1=9-c

-10=-c

c=10

You might be interested in

A fence is to be built to enclose a rectangular area of 240 square feet. The fence along three sides is to be made of material t

aniked [119]

Answer:

$18.97 \text{ and }12.65\text{ft}$

Step-by-step explanation:

GIVEN: A fence is to be built to enclose a rectangular area of $240$ square feet. The fence along three sides is to be made of material that costs $6$ dollars per foot, and the material for the fourth side costs $12$ dollars per foot.

TO FIND: Find the dimensions of the enclosure that is most economical to construct.

SOLUTION:

Area of rectangular fence $=240\text{ sq. ft}$

let the length of fence $=x$

let the width of fence $=y$

let $x$ be the smaller side

Area of rectangular fence enclosure $=xy$

$xy=240$

$y=\frac{240}{x}$

cost of fence along three sides $=6 \text{ dollars per feet}$

cost of fence along fourth side $=12 \text{ dollars per feet}$

length of fence $=2x+2y$

cost of fence building $=6(2x+y)+12y$

$=12x+18y$

putting value of $y$

$=12x+18\times\frac{240}{x}$

$=12x+4320x^{-1}$

to find minimum value differentiating the equation

$12-\frac{4320}{x^{2} }=0$

$x^{2} =\frac{4320}{12}$

$x^{2} =360$

$x=18.97\text{ft}$

$y=12.65\text{ft}$

Hence the dimensions of the enclosure that is most economical to construct are $18.97\text{ft}$ and $12.65\text{ft}$

8 0

2 years ago

Agh. i'm so silly...please can anyone help me? i feel so lost.

Arlecino [84]

It is 29 because a right angle is 90 so the equation should be 61 plus x=90 so you could just subtract and it would be 29

6 0

2 years ago

What is the solution of -27 = m/9 ? A. -243 B. -3 C. 3 D. 243

asambeis [7]

Answer: m = -243

Explanation:

• Solve

-27 = m/9

•Multiply 9 by 27

m/9 * -27

• Result

m = -243

8 0

3 years ago

Read 2 more answers

2 inches is equal to 300 miles if you drive 450 miles how many inches does it represent on the map

Lunna [17]

Answer:

300 / 2 = 450 / x

x = 900 / 300

x = 3 inches

Step-by-step explanation:

7 0

2 years ago

Find the distance between point (2, 7) and line y=1/3x-1/3.

oee [108]

2 = x. 7 = y

2 = 1/3 * 7 -1/3
1/3 * 7 to get 7/3
2 = 7/3 - 1/3 to get 6/3
Divide both sides by 2
2 = 2
Sorry if my math is wrong

8 0

3 years ago