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Natasha_Volkova [10]
2 years ago
11

What is the difference of the fractions? Use the number line to help find the answer.

Mathematics
1 answer:
Vedmedyk [2.9K]2 years ago
3 0

Answer:

-11/20

Step-by-step explanation:

\frac{1}{5} - \frac{3}{4} = \frac{?}{?}

first you want to get a common denominator (number on the bottom)

\frac{4}{20} - \frac{15}{20} = \frac{?}{?}

now you can subtract the numerators (number on tope) (also don't touch bottom)

it ~equals = -\frac{11}{20} ~~because ~4-15 ~is -11

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3x2 - 4x + 2
Oksana_A [137]

Answer:

c

Step-by-step explanation:

A quadratic trinomial has the form of ax² + bx + c

e.g. 3x² + 4x + 2

A quadratic binomial has the form of ax² + bx

e.g. 3x² + 4x

A cubic binomial has the form : ax³ + bx

3x³ + 4x

6 0
2 years ago
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


4 0
3 years ago
Read 2 more answers
Help me for brainlist
LUCKY_DIMON [66]

Answer:

c

Step-by-step explanation:

Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)

3 0
3 years ago
Type the expression that results from the following series of steps:
kvv77 [185]

Answer:

\frac{x - 3}{6}

Step-by-step explanation:

First, subtract 3 from x

This will get you the expression x - 3

Now, divide this by 6.

This will get you the expression \frac{x - 3}{6}

So, the final expression from the steps is \frac{x - 3}{6}

3 0
2 years ago
Help please If f(x) = -3x - 5 and g(x) = 4x-2, find (1-9)(x).
Mandarinka [93]

9514 1404 393

Answer:

  -7x -3

Step-by-step explanation:

(f -g)(x) = f(x) -g(x) = (-3x -5) -(4x -2)

(f -g)(x) = -3x -5 -4x +2 = (-3-4)x +(-5+2)

(f -g)(x) = -7x -3

4 0
3 years ago
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