All categories

3 years ago

Find the equation of a line that runs through

Mathematics

1 answer:

Alborosie3 years ago

8 0

Answer:

Step-by-step explanation:

equation of a line

y - y1 = m(x -x1)

where (x1, y1) is a point on the line and m is the slope

since it is parallel to the line 3x + y = -7, put in y = mx + b form to find the slope

y = -3x - 7, therefore m = -3

y - 1 = -3(x - 2)

You might be interested in

A flat rectangular piece of aluminum has a perimeter of 70 inches. The length is 11 inches longer than the width. Find the width

rodikova [14]

perimeter = 2L +2w

L = w+11

70 = 2(w+11) +2w

70 = 2w+22+2w

70= 4w + 22

48 = 4w

w=48/4 = 12

width = 12

length = 12+11 = 23

2x12 = 24

2x23 = 46

46+24 = 40

length = 23 inches, width = 12 inches

Answer is D

5 0

3 years ago

Read 2 more answers

Pleaseee help me out !!!

Dahasolnce [82]

Answer:

y = 16

Step-by-step explanation:

y = 11 - x

of x is -5, subtitute it into the equation

y = 11 - (-5)

y = 11 + 5

y = 16

8 0

2 years ago

Read 2 more answers

Given sin theta= 6/11 and sec theta < 0, find cos theta and tan theta.

bekas [8.4K]

Answer: option a.

Step-by-step explanation:

By definition, we know that:

$cos^2(\theta)=1-sen^2(\theta)\\\\tan(\theta)=\frac{sin(\theta)}{cos(\theta)}$

Substitute $sin(\theta)=\frac{6}{11}$ into the first equation, solve for the cosine and simplify. Then, you obtain:

$cos(\theta)=\±\sqrt{1-(\frac{6}{11})^2}\\\\cos(\theta)=\±\sqrt{\frac{85}{121}}\\\\ cos(\theta)=\±\frac{\sqrt{85}}{11}$

As $sec\theta$ then $cos\theta$ :

$cos(\theta)=-\frac{\sqrt{85}}{11}$

Now we can find $tan\theta$ :

$tan\theta=\frac{\frac{6}{11}}{-\frac{\sqrt{85}}{11}}\\\\tan\theta=-\frac{6\sqrt{85}}{85}$

4 0

3 years ago

Read 2 more answers

Could you help me again and explain how you do it please I will give you 50 points

Keith_Richards [23]

Answer:

9 meters sorry if thats wrong

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

The dog has gone 5/8 of the way across the yard. How much farther does it have to go to reach the gate?

tigry1 [53]

<span>Well if one assumes that the dog is starting at one side opposite the gate and is heading directly for it, then it has 3/8 of the yard to go. However since one cannot know where the dog has started his movement toward the gate then the answer would not be solvable without more information.</span>

7 0

3 years ago