I will mark BRAINILY to first correct answer!! EXTRA POINTSSS!

Mathematics

1 answer:

n200080 [17]3 years ago

7 0

D. 147 i hope it’s right if not i’m so sorry!

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A surgery asks 25 people if they prefer brand A of brand B laundry detergent. The data show that 12 people prefer brand A. Write

SVETLANKA909090 [29]

Answer:

13 to 25

13:25

$\frac{13}{25}$

Step-by-step explanation:

All of these show the ratio 13/25

Hope this helps!

8 0

3 years ago

Consider the piecewise-defined function given by the graph. What are these values?

maksim [4K]

Answers:

f(-3) = -1

f(-1) = 2

f(3) = 5

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Explanations:

Draw a vertical line through -3 on the x axis. Make sure this vertical line crosses the orange graph. Mark this point of intersection and then draw a horizontal line from this point to the y axis. You should find that it touches -1 on the y axis. Check out the attached image to see this process in action.

Those steps basically say that x = -3 leads to y = -1. Since y = f(x), this means f(-3) = -1

Through similar steps, you should find that f(-1) = 2 and f(3) = 5

Note that the open hole/circle does not count. So if you land on an open hole, just keep going until you hit a closed circle on the other piece of the graph.