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just olya [345]
2 years ago
10

The equation of line QR is x + 2y = 2. What is the equation of a line perpendicular to line QR in slope-intercept form that cont

ains point (5, 6)?
A) y = negative one halfx + seventeen halves
B) y = 2x − 4
C) y = negative one halfx + seven halves
D) y = 2x + 16
Mathematics
1 answer:
Elza [17]2 years ago
7 0

Answer:

y = 2x-4

Step-by-step explanation:

x + 2y = 2

The slope intercept form is

y = mx+b where m is the slope and b is the y intercept

First find the slope of the line

2y = -x+2

Divide by 2

y = -1/2x +1

The slope of this line is -1/2

We want a line that is perpendicular, which is the negative reciprocal

-1 /(-1/2) = 2

The slope intercept form is

y = mx+b where m is the slope and b is the y intercept

y = 2x+b

Substitute the point into the line

6 = 2(5)+b

6 = 10+b

6-10 =b

-4=b

y = 2x-4

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Will give brainiest! Please help!
IrinaK [193]

Answer:

The ratio of salmon to total fish caught is 9 over 25.

Step-by-step explanation:

Start with what we know. We have 200 total fish caught and 36% are salmon. The rest is just mumble jumble so don't pay attention to that.

All we have to do is find 36% of 200, and the easiest way to do that is by first knowing that 36% of 100 is 36 so if we double that it will give us 36% of 200.

36 x 2 = 72

So, the ratio of salmon to total fish caught is 72 over 200. But, in simplest form is 9 over 25 because 72/200 divided by 4/4 = 9/25.

Hope this helps! If you have any additional questions please don't hesitate tp ask me or your teacher to be sure you really master this subject. Stay safe and please mark brainliest!

8 0
2 years ago
Use the diagram that awnser the questions.
CaHeK987 [17]
Part A
 The first thing we must do in this case is to hide the slopes of each line.
 line m:
 m = (- 4-3) / (0 - (- 4))
 m = -7 / 4
 Line n:
 n = (- 2-2) / (3-1)
 n = -4 / 2
 n = -2
 Answer:
 Lines m and n are not parallel because their slopes are different.

 Part B:
 
We look for the slope of the K line:
 k = (1 - (- 3)) / (4 - (- 3))
 k = 4/7
 We observe that it is true that:
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8 0
3 years ago
Read 2 more answers
Twelve Divided by the sum of a number and five
fredd [130]
12/x+5
x represents “a number” because it’s unknown and the + sign is because the words sum
6 0
3 years ago
The attic shown is a triangular prism. Insulation will be placed inside the walls, not including the floor. Find the surface are
maria [59]

Answer:

1,125\ ft^{2}

Step-by-step explanation:

we know that

The surface area of the triangular prism that will be covered with insulation is equal to the area of the two triangular faces plus the two lateral rectangular faces

so

SA=2[\frac{1}{2}(15)(15)]+2[(30)(15)]= 1,125\ ft^{2}

3 0
3 years ago
Mark drove 50 percent of the distance.
Lapatulllka [165]
Break everything into 8ths.

50% = 1/2=4/8

4/8+1/8=5/8
the remaining distance is 8/8-5/8. so 3/8, not 1/4
6 0
3 years ago
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