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inna [77]
3 years ago
6

F(x)3x+5/x what is f(a+2)

Mathematics
2 answers:
wolverine [178]3 years ago
8 0

Answer:

f(a+2) equals:

\dfrac{3a^2+12a+17}{a+2}

Step-by-step explanation:

We are given

f(x)=3x+\dfrac{5}{x}

We have to find the value of f(a+2)

substituting a+2 in place of x in f(x), we get

f(a+2)=3(a+2)+\dfrac{5}{a+2} \\\\f(a+2)=\dfrac{3(a+2)^2+5}{a+2} \\\\f(a+2)=\dfrac{3(a^2+4+4a)+5}{a+2} \\\\f(a+2)=\dfrac{3a^2+12+12a+5}{a+2} \\\\f(a+2)=\dfrac{3a^2+12a+17}{a+2}

Hence, f(a+2) equals:

\dfrac{3a^2+12a+17}{a+2}

Natalija [7]3 years ago
4 0
F(X) = (3x + 5)/X
F(a + 2) = (3(a + 2) + 5)/(a + 2)
F(a + 2) = (3a + 6 + 5)/(a+2)
F(a + 2) = (3a + 11)/(a + 2).

This would be the final solution.
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Drew's van is 200 centimeters tall. The height limit for a bridge is 3
horrorfan [7]

Answer:

1. 100cm

2. 300.1cm

3. 200cm

4. 400cm

5. 299.00cm

Step-by-step explanation:

300-200=100

300+0.01=301

300-100=200

300+100=400

300-0.01=299.99

4 0
3 years ago
Which of the following offer better value for money?
Stels [109]

Answer:

40 teabags for 0.96 (this is the most british question I've ever saw)

Step-by-step explanation:

1.62 / 60 = 0.027 (price per teabag)

0.96 / 40= 0.024 (price per teabag)

40 teabags for 0.96 is the better deal

5 0
2 years ago
Sue Mitchell weighed 8 lb. 13 oz. when she was born. She now weighs 93 lb. 5
ra1l [238]

Answer:

Weight gain = 84 lb 5 oz

Average weight gain = 6 lb 5 oz

Step-by-step explanation:

lb means pounds

16 oz = 1 pound

Convert the weight to pounds

Weight when she was born = 8 lb. 13 oz

= 8 pounds + 0.8125 pounds

= 8.8125 pounds

Present weight = 93 lb. 5

oz

= 93 pounds + 0.3125 pounds

= 93.3125 pounds

How much has she gained since birth

Weight gain = Present weight - Weight when she was born

= 93.3125 pounds - 8.8125 pounds

= 84.5 pounds

= 84 lb 5 oz

Weight gain = 84 lb 5 oz

what has been her average weight for each year if she is 13 year old

Average weight gain = Weight gain / 13

= 84.5 pounds / 13

= 6.5 pounds

= 6 lb 5 oz

Average weight gain = 6 lb 5 oz

8 0
2 years ago
Please answer theses questions NEED THEM FAST please
scoundrel [369]
1)

C ≈ 3.14 • 9
C ≈ 28.26
The circumference is 28.3 cm to the nearest tenth of a centimeter

2)

C ≈ 3.14 (2 • 13)
C ≈ 3.14 • 26
C ≈ 81.64
The circumference is 81.6 in to the nearest tenth of a inch

3)

C = 3.14 (13)
C = 40.82
C = 40.8

4)

C = 3.14 (2 • 5)
C = 3.14 (10)
C = 31.4

5)

C = 3.14 (2 • 1.5)
C = 3.14(3)
C = 9.42
C = 9.4
6 0
2 years ago
Find the value of 15 - 8 ÷ 2.
Mamont248 [21]

8÷2= 4

15-4= 11

  1. First you divide 8 by 2.
  2. The you subtract 15 minus 4 and the answer will be 11.
5 0
3 years ago
Read 2 more answers
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