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Snezhnost [94]
2 years ago
14

If f(x) = 2x^2+3 and g(x)= 5x, evaluate the following: a. f(g(x)) b. g(g(3)) c. g(f(-2))

Mathematics
1 answer:
marissa [1.9K]2 years ago
8 0

Answer:

A = 50x^2+3

B = 75

C = 55

Step-by-step explanation:

f(x)=2x^2+3\\g(x)=5x

A. f(g(x))

2(5x)^2+3\\2(25x^2)+3\\=50x^2+3

B. g(g(3))

5(5(3))\\5(15)\\=75

C. g(f(-2))

g(2(-2)^2+3)\\g(8+3)\\g(11)\\5(11)\\=55

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7. how many tiles measuring
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Answer:

245 tiles

Step-by-step explanation:

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<u>Note</u>

Strictly speaking we have to find out how many tiles can be fitted in the length and breadth of the bathroom. Since the bathroom is 350 cm wide, we can fit 350/20cm = 17.5 tiles. However, there is no concept of 1/2 tile so the question has an ambiguity. along the width, we can fit 280/10 = 14 tiles

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2 years ago
Applying Inverse Properties In Exercise,apply the inverse properties of logarithmic and exponential functions to simplify the ex
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