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Ulleksa [173]
2 years ago
10

A line has a slope of -2 and contains the points (3,5) and (4, y). The value of y is

Mathematics
1 answer:
stira [4]2 years ago
8 0

Answer:

y = 3

Step-by-step explanation:

Here we have:

change in y             y - 5

----------------- = -2 = ----------    or

change in x              4 - 3

 y - 5

---------- = -2, or y - 5 = -2.  Thus, y = 3

      1

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Identify an equation in slope-intercept form for the line parallel to y=5x+2 that passes through (-6,-1).
Roman55 [17]

Answer:

D

Step-by-step explanation:

gradient for the line y=5x+2 = 5  from y=mx+c where m =gradient

parallel lines have equal gradients thus M2=5

equation for line passing through point (-6,-1) and gradient , m=5 will be

(change in y/change in x)=M2

(y--1/x--6)=5

y+1/x+6 =5

y+1=5(x+6)

y+1=5x+30

y=5x+29

3 0
2 years ago
The two lines represent the amount of water overtime in two tanks that are the same size. Which container is feeling more quickl
Margaret [11]

Answer:

Tank A is filling quicker

Step-by-step explanation:

You can tell this by looking at the slope of each line. Since the slope of line A is larger and going up faster, that tells you that tank A is filling faster than tank B

7 0
3 years ago
1. Determine whether line KM and line ST are Parallel, Pers
Andrews [41]

Answer:

Since the slope of KM and ST are different, they are not parallel

Step-by-step explanation:

Slope of line KM = \frac{5}{8}

 Slope of ST = -\frac{8}{5}

Determine whether the lines are perpendicular;

Solution:

We can use the slope of a line to determine whether they are perpendicular or parallel to one another.

Parallel lines do not meet one another

Perpendicular lines cross one another at an angle of 90°

Two lines are parallel if their slopes are the same;

  Since the slope of KM and ST are different, they are not parallel

7 0
2 years ago
What is the value of 7P5?<br><br> A.5040<br> B.2520<br> C.42<br> D.21
Marizza181 [45]
The answer is <span>B.2520
</span>
For permutation P we will use:
nPr = n!/(n-r)!
7P5 = ?
n = 7
r = 5
7P5 = 7!/(7-5)!
       = (7 * 6 * 5 * 4 * 3 * 2 * 1)/2!
       = 5040/(1 * 2)
       = 5040/2
       = 2520
5 0
3 years ago
When twice a number is subtracted from 34, the result is 16. Find the number.
Schach [20]

Answer:

9

Step-by-step explanation:

34 - 16 = 18

18 ÷ 2 = 9

you're welcome! I'm a 6th grader btw!

7 0
2 years ago
Read 2 more answers
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