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LenaWriter [7]
4 years ago
8

This question is really hard can someone please help out? Thank you so much !!!

Mathematics
1 answer:
atroni [7]4 years ago
3 0

Answer: Option 4: -2sin(x + pi/2) - 1

Step-by-step explanation:

When this equation is graphed, the y-intercept is -3 which is what the image shows. None of the others have a y-intercept at -3.

Hope this helps!

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3x-5y=60<br> 4x+5y=-4<br> what is the system of linear equation
Sergeu [11.5K]

(3x-5y=60)

4x+5y=-4

3(8)-5(7.2)=60

4(8)+5(-7.2)=-4

7x=56

÷7. ÷7

x=8

3(8)-5y=60

4(8)+5y=-4

32+5y=-4

-32. -32

5y=-36

÷5. ÷5

y=7.2

4 0
3 years ago
A car is traveling at a rate of 90 kilometers per hour. What is the car's rate in kilometers per minute? How many kilometers wil
loris [4]

90k/60minutes, the car travels 3/2 kilometers in a minute. 20 x 3/2 is 30 kilometers that the car travels in 20 minutes.

4 0
3 years ago
What is 5% of 3,000?
Elan Coil [88]

Answer:


Step-by-step explanation:

5% of 3,000 is 150

4 0
3 years ago
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Which statement describes the end behavior of the exponential function f(x) = 2x – 3?
Shtirlitz [24]

The correct answer is a. for very high x-values, f(x) moves towards positive infinity.


This can always be determined by two factors.

1) is it linear or something else?

2) Is the lead coefficient positive or negative.


In this case, since the x is not being raised to a power or is not raised to a power itself, we know that there are no asymptotes. That takes care of #1 for us.


As for #2, since the coefficient of x (which is the highest power here) is positive, that means it continues to get bigger. If it were negative it would be the opposite. So, the correct answer is that as x gets bigger, f(x) moves towards positive infinity.

6 0
3 years ago
Please help me please !!!!!
ahrayia [7]

Answer: D; 2.72

Step-by-step explanation:

solve for n...

5.6 + 1.4n = 2.4n + 2.88 (expanding brackets)

2.72 = 1n

n = 2.72

3 0
3 years ago
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