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Nuetrik [128]
3 years ago
7

2. The perimeter of a rectangle is 72 cm. The width of the rectangle is 16 cm. What is the area of the rectangle?​

Mathematics
1 answer:
tresset_1 [31]3 years ago
3 0
ANSWER
320cm ²

STEP BY STEP
2 widths (16) should equal 32, so you should have 40cm left. Divide 40 by 2 to get one length. Length = 20, width = 16.

So to find the area, you multiply length times width. 20 x 16 = 320

The area is 320cm ²
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Is my answer correct? if not please correct me
guapka [62]

Answer:

Yes it is

Step-by-step explanation:


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3 years ago
The range of the function y=secx-2 is all reals except<br><br> -1 1 -3 -2
Umnica [9.8K]

Answer:

For a function y = f(x), the range is the set of all the possible values of y.

In the question you wrote:

y = secx - 2

This can be interpreted as:

y = sec(x - 2)

or

y = sec(x) - 2

So let's see each case (these are kinda the same)

If the function is:

y = sec(x - 2)

Firs remember that:

sec(x) = 1/cos(x)

then we can rewrite:

y = 1/cos(x - 2)

notice that the function cos(x) has the range -1 ≤ y ≤ 1

Then for the two extremes we have:

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Notice that for:

y = 1/cos(x - 2)

y can never be in the range  -1 < x < 1

As the denominator cant be larger, in absolute value, than 1.

Then we can conclude that the range is all reals except the interval:

-1 < y < 1

If instead the function was:

y = sec(x) - 2

y = 1/cos(x) - 2

Then with the same reasoning, the range will be the set of all real values except:

-1 - 2 < y < 1 - 2

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6 0
3 years ago
Wilma can mow a lawn in 3 hours. If Kyle helps her with another mower, the lawn can be mowed in 2 hours. how long would it take
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Answer:

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Step-by-step explanation:

(4, 3) (7, 9)     M = Slope

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M=\frac{6}{3}           Slope needs to be simplified into a whole number

M=2          

4 0
2 years ago
OK I NEED HELP I DONT KNOW THIS​
DiKsa [7]

Answer: what the question based on?

Step-by-step explanation:

4 0
2 years ago
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