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Natasha_Volkova [10]
3 years ago
14

Given that (8,4) is on the graph of f(x), find the corresponding point for the function f(4x).

Mathematics
2 answers:
Aliun [14]3 years ago
8 0
The given point is (8,4) which means we know f(8) = 4. 

We don't know any outputs for f(4x) other than the output of 4 which was stated with f(8) = 4. So f(4x) = 4 for some input x. In order for 4x to be equal to 8, that x value must be 2. 

f(4x) = f(8)
f(4*2) = f(8)

So the point (2,4) is on the graph of f(4x)
Plugging in x = 2 leads to f(4x) = f(4*2) = f(8) = 4
LekaFEV [45]3 years ago
5 0
\bf \stackrel{f(x)}{(8~~,~~4)}\qquad \qquad \qquad \stackrel{f(4x)}{(4(8)~~,~~4)}\implies (32,4)
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1 1/2= v + 3/4 (that's 1 and a half, not 11 over 2)<br> what is v?
Irina-Kira [14]

Answer:

The value of v is 3/4.

Step-by-step explanation:

First, you have to convert mixed number into improper fraction :

1 \frac{1}{2} \\  =  \frac{2 \times 1 + 1}{2}  \\  =  \frac{3}{2}

In order to find the value of v, you have to substract 3/4 to both sides :

\frac{3}{2}  = v +  \frac{3}{4}

\frac{3}{2}  -  \frac{3}{4}  = v +  \frac{3}{4}  -  \frac{3}{4}

v =  \frac{3 \times 2}{2 \times 2}  -  \frac{3}{4}

v =  \frac{6}{4}  -  \frac{3}{4}

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8 0
3 years ago
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omeli [17]
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6 0
3 years ago
Marlo uses 252 lb of gravel to cover a garden plot of 36 ft2. clear check how many pounds of gravel does it take to cover one sq
timama [110]

7 lb will cover an area of 1 square foot, while 315 lb will cover an area of 45 square feet.

From given question,

252 lb = 36 ft²             ..........(1)

The number of pound for an area of 1 square foot is calculated as follows:

x = 1 ft²                       .......(2)

The area and the amount of gravel are illustrations of proportions.

From (1) and (2) we get an equation,

⇒ x × 36 = 252 × 1

⇒ x = 252/36

⇒ x = 7 lb

We need to find the area that could be covered with 315 lb of gravel

The area to be covered with 315 lb gravel is calculated as follows:

315 lb = y               ............(3)

From (1) and (3) we get an equation,

⇒ y × 252 = 36 × 315

⇒ y = 45 ft²

Therefore, 7 lb will cover an area of 1 square foot, while 315 lb will cover an area of 45 square feet.

Learn more about the proportions here:

brainly.com/question/13114933

#SPJ4

4 0
11 months ago
Select al solutions to the inequality 8t&lt; -2t+20
DENIUS [597]

Step-by-step explanation:

the answer is E

which 2

its easy bro

6 0
3 years ago
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