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8090 [49]
3 years ago
15

A dance floor is in the shape of a rectangle.

Mathematics
2 answers:
inn [45]3 years ago
6 0

Answer:

P= 74

Step-by-step explanation:

For a rectangle with width w and length L, the perimeter P is defined as P=2W+2L

W=16

L=21

P= 2 x 16 + 2 x 21 =

P=74

Nataliya [291]3 years ago
6 0

Answer:

The perimeter is 74 meters

Step-by-step explanation:

By definition the perimeter of a rectangle is the sum of the lengths of its 4 sides.

The formula for calculating the perimeter of a rectangle is as follows:

P = 2w + 2L

Where P is the perimeter, w is the width and L is the length.

In this case we want to find P and we know that:

w =16\ meters

L =21\ meters

Therefore:

P = 2(16) + 2(21)

P = 74\ m

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Middle school mathematics what is the answer as a ratio
Sergio [31]

Answer:

24 :28

Step-by-step explanation:

So you add up all the numbers and then you subtract what you are not wanting to get.

Hope that makes sense and helps!!:) Brainliest??


5 0
3 years ago
An engineer has designed a valve that will regulate water pressure on an automobile engine. The valve was tested on 240240 engin
mojhsa [17]

Answer:

p-value = 0.1213  (to 4-decimal places)

Step-by-step explanation:

Given:

N = 240

mean  = 7.5

s = 1.0

Solution

With N=240 and using the central limit theorem, distribution can be approximated as normal.

Let

Null hypothesis H0, mu = 7.6

Alternate hypothesis, mu not equal to 7.6  (two-tail test)

for

Alpha = 0.1 (two sided)

Z = sqrt(N)(mean – mu)/s = sqrt(240)(7.5-7.6)/1.0 = -1.54919

p-value  

= P(|Z|>1.54919)  

= 2P(Z>1.54919)

= 2(1-P(Z<1.54919)

=2(1-0.9393)     (using normal distribution table)

=0.12134

Since alpha = 0.1 < p-value (0.1213), H0 that mean = 7.6 is not rejected.

5 0
3 years ago
Which is greater? X + -6 or X + -2<br>​
irina1246 [14]
X is just a place holder so it really depends if you know what x is but for right now let’s say it’s 0
Ok so -6 is less than -2 so the larger the negative number is the less it is if that makes sense so the greater number is -2
So x+-2 is greater
3 0
2 years ago
Read 2 more answers
30 POINTS PLEASE ANSWER ASAP. The Diagram shows the front wooden wall of the warehouse in the shape of a trapezoid with a rectan
jolli1 [7]

Answer:

900 sq ft

Step-by-step explanation:

The area of a trapezoid is (Base 1 + Base 2) * height/2. So to plug the numbers in...

(30+60)20/2

90*20/2

1800/2

900 sq ft

8 0
3 years ago
What is the rule for the reflection?
mote1985 [20]

Answer:

Step-by-step explanation:

it’s the last one

6 0
3 years ago
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