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Nadya [2.5K]
3 years ago
12

WILL GIVE BRAINLIEST Subtract 9x^2+7x-2 from 8x-10

Mathematics
1 answer:
konstantin123 [22]3 years ago
6 0

Answer:

x − 9 x ^2 − 8

Step-by-step explanation:

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Harold wrote this equation to model the level of water in a pool over time. The variable x represents time in hours. f(x) = 3,50
lina2011 [118]

Answer:

The water level is falling.

The initial level of water in the pool was 3,500 units

The water was 2,600 units high after 4 hours.

Step-by-step explanation:

The given function that models the water level is

f(x)=3,500-225x

where x represents time in hours.

The function represents a straight line that has slope m=-225

Since the slope is negative, it means the water level is falling.

The initial level of water in the pool can found when we put x=0 into the function.

f(0)=3,500-225(0)


f(0)=3,500, hence the initial level is 3,500.


To determine the level of water in the pool after 14 hours, we put x=14 into the equation to get;

f(14)=3,500-225(14)

f(14)=3,500-3150


f(14)=350


To determine the water level after 4 hours we put x=4

f(4)=3,500-225(4)

f(4)=3,500-900

f(14)=2,600


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3 years ago
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An 18 fluid ounce bottle of lotion costs $10.99, what is the price per fluid ounce?
irinina [24]

35

Step-by-step explanation:

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3 years ago
A=1/2(2x6)x4 i need helppp !!
Nostrana [21]

Answer:

A=24

Step-by-step explanation:

First, we do the equations in the brackets(2x6) which is 12.

Before that, there is a 1/2 which means dividing whatever is inside the brackets by 2 which then becomes 6.

Then we x4 so the answer is 24.

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2 years ago
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Math help 100 points <br><br> ALSO CHECK OUT MY PROFILE (MANY UNANSWERED QUESTIONS)!!!!!
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Midpoint formula:
( \frac{x1 + x2}{2}   \:  \frac{y1 + y2}{2} )
1. Point 1 (-2,2)
Point 2 (4,-1)

Midpoint: (-2+4/2, 2-1/2)
(2/2, 1/2)
(1, 1/2)

2. Point 1 (-3,-5)
Point 2 (2, 5)

Midpoint: (-3+2/2, -5+5/2)
(-1/2, 0)

Distance between two points formula:

\sqrt{(x2 - x1) {}^{2} + (y2 - y1) {}^{2}  }
1. Point 1 (-2, 2)
Point 2 (4, -1)

\sqrt{(4 + 2) {}^{2}  + ( - 1 - 2) {}^{2} }
\sqrt{6 {}^{2} + ( - 3) {}^{2}  }
\sqrt{36 + 9}
\sqrt{45}
6.7
2. Point 1 (1, 2)
Point 2 (4, 7)

\sqrt{(4 - 1) {}^{2} + (7 - 2) {}^{2}  }
\sqrt{3 {}^{2} + 5 {}^{2}  }
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Please help, in the middle of test :)
Fed [463]

Answer:

3/4

Step-by-step explanation:

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