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Aleks [24]
3 years ago
5

The area of a rectangle is 24 square cm. the length of the rectangle is 8 cm. find the perimeter

Mathematics
1 answer:
telo118 [61]3 years ago
6 0
The perimeter is 22 cm

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The width of a rectangle is 3 less than twice the length ,x. if the area of the rectangle is 43 square feet,
mart [117]
W = 2L - 3

43 = L × ( 2L - 3 )
43 = 2L^2 - 3L
2L^2 - 3L - 43 = 0
L = 5.447 , L = - 3.9471

w = 2(5.447) - 3
w = 7.894

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4 0
3 years ago
Prove tan(x - (π / 4)) = (sin x – cos x) / (cos x + sin x) by filling in the reasons in the table below.
Mrac [35]

No way to know what reasons you're supposed to choose from...

By definition of tangent,

\tan\left(x-\dfrac\pi4\right)=\dfrac{\sin\left(x-\frac\pi4\right)}{\cos\left(x-\frac\pi4\right)}

The angle sum identities give

\tan\left(x-\dfrac\pi4\right)=\dfrac{\sin x\cos\frac\pi4-\cos x\sin\frac\pi4}{\cos x\cos\frac\pi4+\sin x\sin\frac\pi4}

cos\dfrac\pi4=\sin\dfrac\pi4=\dfrac1{\sqrt2}, so we can cancel those terms to get

\tan\left(x-\dfrac\pi4\right)=\dfrac{\sin x-\cos x}{\sin x+\cos x}

as required.

8 0
3 years ago
For one month, Terry recorded the time at which her school bus arrived. She organized her results in a frequency table. Find the
bulgar [2K]

Answer:

Experimental Probability is found:

P = 11/24

Step-by-step explanation:

Experimental Probability can be defined as the ration of the number of times (frequency) a desirable event has occurred, to the Total number of time (total frequency) the activity has been performed.

Probability = P = Frequency of an event / Total Frequency

To find the total frequency, we add all three of the given frequencies:

Total Frequency = 10 + 11 + 3

Total Frequency = 24

Frequency of the event (times bus arrived between 8:20 to 8:24) = 11

So, experimental probabilty is found as:

P = 11/24

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3 years ago
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Andy will spend 12$ in wire.

We know this because he wants 25 ft of wire and there are 300 inches in 25ft

In the chart it says 150 inches is 6$ so if we multiply that by 2 we get the price for 300 inches which is 12$

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3 0
3 years ago
Exit Ticket
miskamm [114]

Throughout this, I'm assuming that the scale is: 1 square = 1

Not 100% sure if my answers are correct.

Question 1:

The x coordinate must be 2 and the y coordinate must be -1.

Question 2:

The x coordinate would be -2 and the y coordinate would be -1.

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2 years ago
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