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Finger [1]
2 years ago
11

Instructions: y varies indirectly with x. If y = 7 when x = -4, find y when a H 2. Use the forward slash (i.e.

Mathematics
1 answer:
WARRIOR [948]2 years ago
6 0

By using the given information about the inverse relation, we will get:

  • Equation: y = -28/x
  • Solution: y = -14

<h3>How to get the relation between x and y?</h3>

First, we know that y varies indirectly with x, then we can write the relation as:

y = k/x.

Where k is a constant.

Then, we know that when y = 7, we have x = -4.

Replacing these we can find the value of k:

7 = k/(-4)

7*(-4) = k = -28

Then the relation between x and y is:

y = -28/x.

Now, we want to find the value of y when x = 2, then we just replace that in the above equation:

y = -28/2 = -14

So we have:

  • Equation: y = -28/x
  • Solution: y = -14

If you want to learn more about indirect variation:

brainly.com/question/6499629

#SPJ1

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Smallest Zero of f(x+5)=x^2+3x+30
WARRIOR [948]
Hey there
_________________
The correct answer is:
f(x+5)=(x+5)^2+3(x+5)-10

f(x+5)=x^2+10x+25+3x+15-10

f(x+5)=x^2+13x+30  and f(x+5)=x^2+kx+30 so

k=13

Now factor x^2+13x+30

Find j and k such that jk=ac=30 and j+k+b=13 so j and k are 10 and 3 so

(x+3)(x+10)

So the two zeros occur when x=-3 and -10 the smallest of which is:

x=-10

___________________________
Hope this helps you
3 0
4 years ago
Read 2 more answers
A 31-foot board is cut into two pieces so that three times the length of the longer piece is 4 times the length of the shorter p
Sonja [21]

Answer:

675

Step-by-step explanation:

Hope this answer helps you :)

Have a great day

Mark brainliest

6 0
3 years ago
What is y=2x+3 graphed
sergiy2304 [10]

Answer:

y=2x−3 is in slope intercept form for a linear equation, y=mx+b , where m is the slope and b is the y-intercept. The y-intercept is the point at which x=0 and y=−3 , which is point (0,−3) You can plot this point on your graph. The slope is can be described as riserun , and can be written as 21 .

7 0
3 years ago
How do you write an integer to describe 3 miles below sea level
nignag [31]
-3 mi

Hope I helped!!!
7 0
3 years ago
Read 2 more answers
For each problem, select the answer from the two choices.
Veseljchak [2.6K]

Answer:

  1. a. More than 20
  2. b. Less than 10
  3. b. Less than 0.2

Step-by-step explanation:

  1. 212.5
  2. 9.7
  3. 0.1608

Hope it helped you

7 0
3 years ago
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