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olga nikolaevna [1]
3 years ago
6

What is f ( -2) for f f(x) = 1/2 x2

Mathematics
1 answer:
sergij07 [2.7K]3 years ago
7 0
I think 20 ft bc microwaves are cool
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A science test, which is worth 100 points, consists of 24 questions. Each question is worth either 3 points or 5 points. If x is
aniked [119]

Answer:

10 three-point questions and 14 five-point questions.

Step-by-step explanation:

x+y = 24

3x+5y = 100

We can solve this system of equations using elimination. In order to do this, let's first multiply the first equation by 3...

3x+3y=72

3x+5y=100

Now, subtract the first equation from the second equation...

2y=28

Divide both sides by 2

y=14

Plug this back into any of the equations to solve for x...

x+14=24

x=10

There were 10 three-point questions and 14 five-point questions

7 0
2 years ago
Juan had 8 points in a trivia game he answered 3 more questions correctly for 2 points
Rashid [163]

Answer:

the answer is 14 pts total.

Step-by-step explanation:

multiply 3x2....you would get 6. Add 6+8...you would get 14.

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2 years ago
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What is the value of s?<br> units
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5 0
3 years ago
Which of the following predictions is most likely true
Sunny_sXe [5.5K]
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Find the measure of x.<br> X<br> 55°<br> 80<br> X<br> = [ ?<br> ]<br> Round to the nearest tenth.
NARA [144]
<h3>Answer:  139.5</h3>

Work Shown:

cos(angle) = adjacent/hypotenuse

cos(55) = 80/x

x*cos(55) = 80

x = 80/cos(55)

x = 139.4757 approximately

x = 139.5

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2 years ago
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