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3 years ago

Given f(x)2x and g(x) = x^2+3 , find f(g(x)).

Mathematics

1 answer:

MakcuM [25]3 years ago

8 0

Answer:

2x^2 + 6.

Step-by-step explanation:

Replace the x in f(x) by g(x):

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

= 2x^2 + 6.

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Cindy can waterproof 400 ft2 of decking with 2 gallons of sealant. How many gallons should Florence buy for a 1200 ft2 deck?

Scrat [10]

400*3=1200
2*3=5
Answer is 6 gallons

7 0

3 years ago

Find the area of a rectangle with dimensions 3/8 ft x 3/4 ft.

Monica [59]

Answer:

0.02612898 m2 ( im so sorry if this is wrong im new at this =))

Step-by-step explanation:

((3/8) foot) x (3/4) foot =

0.02612898 m2

7 0

3 years ago

Two pumps can fill a pool tank in 26 hours when working together. Alone, the second pump takes twice as long as the first to fil

vesna_86 [32]

Answer:

Step-by-step explanation:

Let's say

d1 the outflow of the first pump

d2 the outflow of the second pump

V=1 is the volume of the tank

Since the second pump takes twice as long as the first to fill the tank,

$V=1=k*d_1*t\\V=1=k*d_2*(2*t)\\==>\ d_1=2*d_2\\\\$

Two pumps can fill a pool tank in 26 hours when working together:

$V=1=k*(d_1+d_2)*26 \ ==> V=1=k*(3*d_2)*26 \ ==>k=\dfrac{1}{3*d_2*26} \\\\$

How long does it take the first pump alone to fill the tank:

$V=1=k*d_1*t=k*2*d_2*t=k*3d_2*26\\2*t=3*26\\\\t=\frac{3*26}{2} \\\\t=3*13\\\\t=39\ (hours)$

4 0

3 years ago

Express the following ratio in simplest form $0.45 : $4.50

yaroslaw [1]

Answer:

1 : 10

Step-by-step explanation:

5 0

3 years ago

Find the mean of the data set.<br><br> –6 3 –2 6 7 –3 –5 8

daser333 [38]

To find the mean in a set of data you need to add all the numbers and divide by the number of digits.

–6 + 3 + –2 + 6 + 7 + –3 + –5+ 8 = 8

8 divided by 8 because there are 8 numbers which equals 1

So your final answer is <u>1 </u>

4 0

3 years ago