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Anton [14]
3 years ago
10

Last year my homeroom class

Mathematics
2 answers:
IrinaVladis [17]3 years ago
6 0

Answer:

12%

Step-by-step explanation:

Crazy boy [7]3 years ago
6 0

The formula is (new minus original)/ original

New = 22

Original = 25

22 - 25 = -3

-3 / 25 = -.12, or -12 percent. The percent decrease was 12 percent because the negative sign (-) indicates a decrease.

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I don’t understand the question and I can’t find anything in my notes to help
lara [203]

Step-by-step explanation:

The problem states that you have a linear function so expect your equation to have this form:

y = mx + b

where m is the slope and b is the y-intercept. You are also given two points: P1(5, 6) and P2(14, 60). Use these points to solve for the slope m.

m = (y2 - y1) / (x2 - x1) = (60 - 6)/(14 - 5)

= 54/9 = 6

So our equation now becomes

y = 6m + b

To solve for b, plug in the values of P1:

6 = 6(5) + b ---> b = -24

Therefore, our equation is

y = 6m - 24

The rest of the points are

(8, 24)

(11, 42)

7 0
3 years ago
How many points on the graph represent a relative minimum? please help
Tasya [4]
<h3>Answer:  1</h3>

Point B is the only relative minimum here.

===========================================================

Explanation:

A relative minimum is a valley point, or lowest point, in a given neighborhood. Points to the left and right of the valley point must be larger than the relative min (or else you'd have some other lower point to negate its relative min-ness).

Point B is the only point that fits the description mentioned in the first paragraph. For a certain neighborhood, B is the lowest valley point so that's why we have a relative min here.

There's only 1 such valley point in this graph.

--------------

Side notes:

  • Points A and D are relative maximums since they are the highest point in their respective regions. They represent the highest peaks of their corresponding mountains.
  • Points A, C and E are x intercepts or roots. This is where the graph either touches the x axis or crosses the x axis.
  • The phrasing "a certain neighborhood" is admittedly vague. It depends on further context of the problem. There are multiple ways to set up a region or interval of points to consider. Though visually you can probably spot a relative min fairly quickly by just looking at the valley points.
  • If you have a possible relative min, look directly to the left and right of this point. if you can find a lower point, then the candidate point is <u>not</u> a relative min.
8 0
2 years ago
A train travels 15 miles per hour faster than a car. If the train covers 100 miles in the same time the car covers 75 miles, wha
Assoli18 [71]
The train is going 60 mph and the train is going 45 mph
5 0
3 years ago
Read 2 more answers
Help pls!!!
expeople1 [14]
That is a good definition
5 0
2 years ago
What equation has an x intercept of (-4,0) and y intercept of (0,9)
Arlecino [84]

In the linear format of y=ax+b, b is the y-intercept hence it is 9.

y=ax+9

Then insert (-4,0) which would then be

0=-4a+9

-9=-4a

9/4=a

Thus the answer is y=9/4x+9 which can also be described as 9/4x-y=-9

6 0
3 years ago
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