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3 years ago

What is the reciprocal of 3/4? How can you be sure it is the reciprocal?

2 answers:

3 0

To find the reciprocal of a fraction, just fill it over. Therefore, the reciprocal of 3/4= 4/3. We can be sure that this is the reciprocal because any number multiplied by its reciprocal gives the product of 1:
$\frac{3}{4} \times \frac{4}{3} = 1$

dimulka [17.4K]3 years ago

3 0

To find the reciprocal of a fraction, we want to switch the numerator and the denominator to get the improper fraction 4/3.

Just switch the places of the numbers.

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Question : <br> 3x-9y+12=?

PSYCHO15rus [73]

Simplifyiing
the greatest common factor is 3 so

3x - 9y + 12 = 3(x - 3y + 4)

5 0

3 years ago

What is the average rate of change of f(x), represented by the table of values, over the interval [-3,4]

77julia77 [94]

Answer:

Average rate of change = 3

Step-by-step explanation:

We know that the average rate of change is basically a measure of the slope of the secant line in the closed interval [a, b].

here a = -3 and b = 4

f(b) = f(4) = 27

f(a) = f(-3) = 6

⇒ Average rate of change = f(b) - f(a) / b - a

= (27 - 6) / (4 - (-3))

= 21 / 7

= 3

Therefore, Average rate of change = 3

6 0

2 years ago

A 20 foot ladder leaning against a wall is used to reach a window that is 17 feet above the ground. How far from the wall is the

Liono4ka [1.6K]

Answer:

The wall is 10.5 foot far from the bottom of the ladder.

Step-by-step explanation:

Given:

Height of the ladder leaning against wall (Hypotenuse) = 20 foot.

Height from where the window is above from the ground (Leg1) = 17 feet.

To find the distance of the bottom of the ladder far from the wall (Leg2) = ?

Now, by using the pythagorean theorem:

$Hypotenuse^{2} = (Leg1)^{2} + (Leg2)^{2}$

$20^{2} =17^{2}+(Leg2) ^{2}$

$400=289+(Leg2)^{2}$

$400-289=(Leg2)^{2}$

$111=(Leg2)^{2}$

by squaring both sides

$Leg2=10.535$

10.535 foot rounded nearest tenth is 10.5 foot.

Therefore, the wall is 10.5 foot far from the bottom of the ladder.

6 0

3 years ago

How many ways are there to make $20 using $10-bills, $5-bills and/or $1-bills?

Maslowich

Answer: 8

Step-by-step explanation: 10+10

10+5+5

5+5+5+5

10+1+1+1+1+1+1+1+1+1+1

1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1

5+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1

5+5+1+1+1+1+1+1+1+1+1+1

5+5+5+1+1+1+1+1

10+5+1+1+1+1+1

4 0

3 years ago

Estimate the area of the figure below

USPshnik [31]

Answer:

I think this is the answer 36 unit

5 0

3 years ago