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Artist 52 [7]
3 years ago
13

If f(x) = √ x + 11, what is f (20)?

Mathematics
1 answer:
mylen [45]3 years ago
8 0

Answer:

2sqrt(5)+11

Step-by-step explanation:

f(x)=sqrt(x)+11

f(20)=sqrt(20)+11

f(20)=sqrt(4*5)+11

f(20)=sqrt(4)*sqrt(5)+11

f(20)=2*sqrt(5)+11

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skad [1K]

Answer:

For #2: It's C. 17 nickels and 15 quarters.

Step-by-step explanation:

17*5= 85

15*25= 375

375+85= 460

add in the decimal:

17* 5 cents= $.85

15* 25 cents= $3.75

$3.75+ $.85= $4.60

7 0
3 years ago
Bernadette works at a Car Lot in Buffalo selling used cars. Each month Bernadette receives $2000 plus she receives a 5% commissi
natta225 [31]

Answer:

The total amount of money Bernadette earned in April was $6200

Step-by-step explanation:

Let us solve the question

∵ Each month Bernadette receives $2000

∵ She also receives a 5% commission for all of her sales

∴ She earns each month = 2000 + 5% of her sales

∵ In April, Bernadette sold $84,000 worth of used cars

→ Multiply it by 5% to find her commission

∴ Her commission = 5% × 84,000

→ Change 5% to decimal by divide it by 100

∵ 5% = 5 ÷ 100 = 0.05

∴ Her commission = 0.05 × 84,000

∴ Her commission = $4200

→ Add her commission to her fixed amount to find her salary in April

∵ She earned in April = 2000 + 4200

∴ She earned in April = 6200

∴ The total amount of money Bernadette earned in April was $6200

3 0
3 years ago
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Find the surface area of the composite figure. Round the answer to the nearest tenth.
Svetllana [295]

Answer:

3+4+5+11= 56

Step-by-step explanation:

3 0
3 years ago
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Answer:

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Step-by-step explanation:

6(2a²b-3ab²-5ab³)

6a(2ab-3b²-5b³)

6ab(2a-3b-5b²)

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