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Zigmanuir [339]
3 years ago
6

A parallelogram with sides s and t has perimeter 2s+2t. Kelly is decorating the edge of her parallelogram-shaped craft table. Th

e tabletop has sides that are 30 inches and 14.5 inches.
What is the perimeter of the tabletop?
Mathematics
1 answer:
Vladimir [108]3 years ago
7 0

Answer:

34.5

Step-by-step explanation:

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PLEASE HELP
marta [7]
Let's begin by putting together some equations:

Seth has charges $39 and then $13 per hour. Since "hour" is our variable, let's write that as $13h where h = the number of hours.

Seth = 39 + 13h, $39 plus $13 times the number of hours

Malcolm charges $55 and then $11 per hour. So:

Malcolm = 55 + 11h, $55 plus $11 times the number of hours

Our goal is to find out how many hours both have to work before they charge the same amount. So let's set our Seth and Malcolm equations equal to one another.

39 + 13h = 55 + 11h, because we want to solve for h to see the number of hours.

First let's subtract 39 from each side:

(39 + 13h) - 39 = (55 + 11h) - 39
13h = 16 + 11h

Now let's subtract 11h from each side:

(13h) - 11h = (16 + 11h) - 11h
2h = 16

Simplify and solve for h by dividing each side by two:

(2h)/2 = (16)/2
h = 8

So Malcolm and Seth would have to work for 8 hours before both earn the same amount. After 8 hours, Seth would earn more than Malcolm. Before 8 hours, Malcolm would earn more than Seth.
3 0
4 years ago
Suppose that a recent article stated that the mean time spent in jail by a first-time convicted burglar is 2.5 years. A study wa
Viefleur [7K]

Answer:

sigma should be used

Step-by-step explanation:

Given that The mean length of time in jail from the survey was four years with a standard deviation of 1.9 years.

The above given is for sample of 27 size.

For hypothesis test to compare mean of sample with population we can use either population std dev or sample std dev.

But once population std deviation is given, we use only that as that would be more reliable.

So here we can use population std deviation 1.4 only.

If population std deviation is used we can use normality and do Z test

4 0
3 years ago
Which of the following is not the correct form of the quadratic equation
Firdavs [7]

Answer:

the squared form

*********************

5 0
3 years ago
Let point C be between V and W on VW Given that VW = 61, VC = z + 13, and CW = z + 8, solve for z.
LenKa [72]
VW = VC + CW
61 = z + 13 + z + 8 = 2z + 21
2z = 61 - 21 = 40
z = 40/2 = 20
z = 20.
3 0
3 years ago
Subtract. negative 10.0 minus left parenthesis negative 2.3 right parenthesis
finlep [7]

If you mean -10.0 - (-2.3) then the answer is -7.7

6 0
3 years ago
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