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storchak [24]
3 years ago
5

Please help me!!!!!!!!!

Mathematics
1 answer:
Hitman42 [59]3 years ago
5 0

Answer:

y=25x+1150

Step-by-step explanation:

1425-1275=150

150/6=25 so 25 dollars per month

1275-5(25)

1275-125=1150

y=25x+1150

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By factoring, identify the zeros of the quadratic function f (x) = x²-9x-22
vovikov84 [41]

Answer:

x= -2, x= +11

Step-by-step explanation:

I hope this is right!

To factorise, we need two numbers that add to make -9 and multiply together to make -22.

2 - 11 works, so we put it in the brackets in this order.

(x + 2) (x - 11)

so x + 2 = 0 and x - 11 =0

but we could also simplify this to say that x could be either -2 or + 11.

I hope this helps.

Have a lovely day.

7 0
2 years ago
A dolphin went 15 feet below sea level to catch a fish. A shark went twice as deep, then swam down an additional 10 feet to catc
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Answer:

im not 100% sure but i pretty sure its 2.

Step-by-step explanation:

5 0
3 years ago
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A jar of natural peanut butter normally cost four dollars today it's on sale for $3.60 what is the percentage of the discount
kakasveta [241]
$4 is the original price of the jar consisting of peanut butter so therefor it = 100%. It's for sale at $3.60, so we divide $4 by 100% so we get the percentage for each cent and then we times it by 3.60 to get the percentage for $3.60 which is 90%. Now we subtract 90% from 100% to get the discounted percentage for 40cents :)

5 0
3 years ago
What’s the amplitude and the period of this function?
Iteru [2.4K]

The amplitude and the period of the function are 3 and 2, respectively.

<h3>What are the amplitude and the period of a sinusoidal function?</h3>

Sinusoidal functions are periodic bounded functions whose form is described below:

y = A · sin (2π · t / T + Ф) + y'

Where:

  • y' - Midpoint
  • A - Amplitude
  • t - Time
  • Ф - Phase
  • T - Period

The period is the horizontal distance between two consecutive peaks or two consecutive bottoms and the amplitude is equal to the half of the distance between a peak and a consecutive bottom. Hence, the amplitude and the period are, respectively:

Amplitude

A = 0.5 · [2 - (- 4)]

A = 3

Period

T = 2 · [0.75 - (- 0.25)]

T = 2

To learn more on sinusoidal functions: brainly.com/question/24336803

#SPJ1

6 0
2 years ago
Marco spends 25% of his monthly income on his car. He earned $2,000 last month. How much did Marco spend on his car last month?​
lord [1]
$500 25% of 2,000 is 500
5 0
3 years ago
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