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mote1985 [20]
3 years ago
9

What is the y-intercept of the equation of the line that is perpendicular to the line y = 3/5 x + 10 and passes through the poin

t (15, –5)?
The equation of the line in slope-intercept form is y = -5/3x+ ? ____

Mathematics
1 answer:
murzikaleks [220]3 years ago
7 0

The slope of the given line is the coefficient of x, 3/5. The slope of the perpendicular line is the negative reciprocal of that:

... m = -1/(3/5) = -5/3

The point-slope form of the equation of a line can be written as

... y = m(x -h) +k . . . . .for slope m and point (h, k)

Using the values we are given for the perpendicular line, its equation is

... y = (-5/3)(x -15) -5

Simplifying gives

... y = (-5/3)x +20

The y-intercept of the perpendicular line is 20.

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There are 132 counters in a bag. The ratio of green counters to purple
DedPeter [7]

9514 1404 393

Answer:

  77 purple counters

Step-by-step explanation:

There are a total of 5+7=12 ratio units, so each stands for 132/12 = 11 counters. The 7 ratio units representing the purple counters stand for ...

  11 × 7 = 77 purple counters

4 0
2 years ago
Help limited time!!!
CaHeK987 [17]

Answer:

c

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Please help me please help me
Gelneren [198K]
(a)
the list would be
-20, -12, -8, -1, 1, 5, 10
the other intergers would have to be greater than 1 in order to be on the correct side and cause 1 to be in the middle. They could be anything but 5 and 10 because these were already chosen.

(b)
the list would be like before
-3 was not included so one of the chosen would be -3 and the other would have to be less than -3 but not -8, -12, or -20 beacuse those were already chosen
8 0
3 years ago
-8 + 2n + 14 = 4n - 16
Triss [41]

Answer:

n=10

Step-by-step explanation:

I don't know if you are trying to fun 'n' but if you are seeing if they are equal, they are not

-6n+14 = 4n-16.

but if you are trying to find n,

n = 10.

8 0
2 years ago
Read 2 more answers
What is the range of the exponential function shown below f(x)=2•7^x
Gemiola [76]

This is rather a sneaky question. You don't know exactly what numbers you can use and what numbers not.

For example, are you allowed to use x = -  3. The answer is yes

f(-3) = 2*7^(-3) = 2/7^3 = 2/147.

How about 0? If there is going to be a problem, zero is usually the number that causes the problem.

f(0) = 2*7^(0) = 2 * 1 = 2 and in this case 0 is just fine.

How about positive numbers? No they are all good.

So the range is -∞ < y < ∞

4 0
3 years ago
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