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Juliette [100K]
4 years ago
7

The perimeter of a rectangle is 24 feet . Find the length if the width is 2 feet what is the length

Mathematics
1 answer:
IRINA_888 [86]4 years ago
3 0

Answer:

length=10 feet

Step-by-step explanation:

if you take your 2 widths and add them its 4. then take your perimiter and subtract 4 from it then divide by 2 which is 10 feet

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What are the solutions to the equation startfraction w over 2 w minus 3 endfraction = startfraction 4 over w endfraction?
spayn [35]
Over 4 because I just took the test
5 0
2 years ago
The population at Bishop High School is 2000 students in 2011. Every year the population decreases by 50 students
Artemon [7]

Answer:

  • Let p be the population at t be the number of years since 2011.  Then, p=2000-50t
  • The projected population of the high school in 2015=1800
  • In <u>2019</u> the population be 1600 students

Step-by-step explanation:

Given: The population at Bishop High School students in 2011 =2000

Also,  Every year the population decreases by 50 students which implies the rate of decrease in population is constant.

So, the function is a linear function.

Let p be the population at t be the number of years since 2011.

Then, p=2000-50t

So at t=0, p=2000

In year 2015, t=4, substitute t=4 in the above equation ,we get

p=2000-50(4)\\\Rightarrow\ p=2000-200\\\Rightarrow\ p=1800

Hence, the projected population of the high school in 2015=1800

Now, put p=1600 in the function , we get

1600=2000-50t\\\Rightarrow50t=2000-1600\\\Rightarrow50t=400\\\Rightarrow\ t=\frac{400}{50}\\\Rightarrow\ t=8

Now, 2011+8=2019

Hence, in <u>2019</u> the population be 1600 students




6 0
3 years ago
The life of light bulbs is distributed normally. The variance of the lifetime is 900 and the mean lifetime of a bulb is 520 hour
Alex73 [517]

Answer:

0.969

Step-by-step explanation:

Given that:

Mean lifetime (m) = 520 hours

Variance = 900

Hence, standard deviation (s) = √900 = 30

Probability that bulb will last for at most 576 hours

X ≤ 576

Obtain the standardized score :

Using the relation :

Zscore = (x - m) / s

Zscore = (576 - 520) / 30

Zscore = 56 / 30

Zscore = 1.867

P(Z ≤ 1.867) : using the z probability calculator ;

P(Z ≤ 1.867) = 0.96905

Hence, P(Z ≤ 1.867) = 0.969

8 0
3 years ago
Idk how to do this please help me it’d be really appreciated
Pani-rosa [81]

You want to compute the total area of the figure. The figure is composed by four 6x4 rectangles, and two 4x4 squares.

The area of one rectangle is 6\cdot 4 = 24

The area of one square is 4\cdot 4 = 16

You have four rectangles and two squares, so the answer is

4\cdot 24 + 2 \cdot 16 = 96+32=128

6 0
3 years ago
Our points are labeled on the number line.
BartSMP [9]

438467385378732452386236532168498329

6 0
3 years ago
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