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igomit [66]
3 years ago
11

If f(x)=-3+7 and g(x)=-7+3, what is the value of f(-3) - g(3)

Mathematics
1 answer:
Andreyy893 years ago
6 0
F(x) = -3 + 7 = 4
g(x) = -7 + 3 = -4

f(-3) - g(3) = 4 - (-4) = 4 + 4 = 8
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Find f(3) and interpret its meaning.
anyanavicka [17]

Answer:

f(3) = 425

f(3) is the elevation of a mountain climber after 3 hours of climbing.

Step-by-step explanation:

So we are given a line that relates time to elevation. We are also given that the equation of the line is f(x) = 125x + 50. From looking at the graph given, we can see that x is the time, in hours, and y, or f(x), is the height, in feet. We are asked to find f(3) and interpret it's meaning.

To find f(3), we would have to find what f(x) is when x = 3. To do this, lets plug in 3 for x into the given equation:

f(3) = 125(3) + 50 = 425

So f(3) = 425. Now, we already know that x is the time in hours and y, or f(x), is the elevation in feet. We set x to 3 when solving for f(3). We have also found that f(3), or y when x = 3, is 425. So f(3), or 425, is the elevation after 3 hours.

I hope you find my answer and explanation to be helpful. Happy studying.

7 0
3 years ago
What is the value of x in the equation −x = 2 − 3x + 6?
Wittaler [7]
-x = 2 - 3x + 6

Add 3x to both sides.

-x + 3x = 2 + 6

Simplify.

2x = 8

Divide both sides by 2.

x = 4

~Hope I helped!~
7 0
3 years ago
Three pounds of bananas cost $1.77.
bearhunter [10]

Answer:

1.77/3=0.59

Step-by-step explanation:

If 3 lbs of bananas cost $1.77 we find the amount of each lbs of bananas by dividing 1.77 by 3.

from there we get 0.59,

therefore each lbs of bananas costs $0.59

and 10 lbs of bananas cost $5.90

4 0
2 years ago
Read 2 more answers
For a science report, Doug is measuring widths of mushrooms with a ruler that divides inches as shown. To determine each width,
Serga [27]
From the 3 options listed, both 5.25 in and 6.5 in could be measures found using a ruler with eighth inches marked, because those decimals can be written in terms of eighth fractions.

5.25 $in $ \rightarrow (5 + 0.25) $in $ \rightarrow (5 +  \frac{2}{8} ) $in$ \\ 
6.5 $in $ \rightarrow (6 + 0.5) $in $ \rightarrow (5 +  \frac{4}{8} ) $in$

The other option, 7.1 in, is not a possibility because 0.1 cannot be written as a fraction of 8 that is marked on the ruler.
7 0
3 years ago
55 times 4 and time 3 equals what?
mina [271]

Answer:

55 times 4 =220

220 times 3 =660

7 0
2 years ago
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