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dalvyx [7]
3 years ago
10

Smart phone sales since 1990

Mathematics
1 answer:
garri49 [273]3 years ago
5 0

Answer:

the last one is linear

the throwing a baseball in the air is quadratic

half life of a pesticide is exponential

thats all i know

Step-by-step explanation:

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Evaluate csc(-315°).
Maru [420]

Answer:

\frac{2}{\sqrt{2} } = \sqrt{2}

Step-by-step explanation:

Notice from the attached image that -315 degrees is the same as 45 degrees.

Recall as well that the csc function is defined as the reciprocal of the sine function: csc(x)=\frac{1}{sin(x)}

Then, you need to evaluate \frac{1}{sin(45)} = 1/\frac{\sqrt{2} }{2} = \frac{2}{\sqrt{2} } =\sqrt{2}

8 0
3 years ago
If two is added to four times a certain number, the result <br> is 26. What is the number?
olga2289 [7]
The number is 8 because 4 times 8 equals 24 plus 2 is 26
6 0
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Describe the transformation <br> (x,y) to (y-2, x+2)
djverab [1.8K]
Move to the right 2 points and move down two points
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2 years ago
Subtract: 8 3/8 - 3 1/4<br><br> Answers: <br> A: 5 1/8<br> B: 5 5/8<br> C: 5 1/4<br> D: 5 1/2
Flura [38]
I believe the answer is D
6 0
3 years ago
A square piece of paper is folded in half vertically. The resulting figure has a perimeter of 21 in. What is the number of units
Rudiy27

Perimeter is adding all 4 sides together.

To find the length and width divide total perimeter by 2:

21 / 2 = 10.5

We now know the length of 1 side and the width of 1 side need to equal 10.5.

Since the original piece was a square we also know the width needs to equal 1/2 of the length.


So we have L + 1/2L = 10.5

Add the common terms 1 L + 1/2 L = 1 and 1/2 L

To Find L divide 10.5 by 1-1/2, which equals 7

To find the width subtract 7 from 10.5, which equals 3.5

So the paper is now 3.5 inches by 7 inches.

4 0
3 years ago
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