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Fiesta28 [93]
2 years ago
11

Simplify (3√-5 +2)(4√-12 -1) Thank you in advance Full steps so I can understand!

Mathematics
2 answers:
Shkiper50 [21]2 years ago
5 0

Answer:

12√60 - 3√-5 + 8√-24  -2

Step-by-step explanation:

Use the distributive property

Multiply each by the other term outside their parantheses

for example multiply 3√-5 by 4√-12 and 3√-5 by -1.

Lina20 [59]2 years ago
5 0

Answer:

√

28

√

4

=

2

7

⋅

2

√

7

14

√

7

14

√

7

Explanation:

28

is the same as

2

×

14

witch in turn is the same as

2

2

×

7

Write as

7

√

2

2

×

7

Taking the

2

2

'outside' the square root changes it from

2

2

to

2

7

√

2

2

×

7

=

7

×

2

×

√

7

14

√

7

Step-by-step explanation:

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How do you do this question?
polet [3.4K]

Answer:

7

Step-by-step explanation:

1 / ((n + 1) + 2)³ ≤ 0.001

1 / (n + 3)³ ≤ 0.001

(n + 3)³ ≥ 1000

n + 3 ≥ 10

n ≥ 7

6 0
3 years ago
4 pencils and 3 crayons are 20.9 inches. 5 pencils and 4 crayons are 26.5 inches. Each pencil is the same length as the other pe
erastova [34]

Answer:

The length of the pencils is 4.1 inches and for the crayons 1.5 inches

Step-by-step explanation:

We can solve by means of a 2x2 system of equations, we have to:

let "x" be the length of the pencils

let "y" be the length of the crayons

4 * x + 3 * y = 20.9

5 * x + 4 * y = 26.5 => x = (26.5 - 4 * y) / 5

Replacing:

4 * (26.5 - 4 * y) / 5 + 3 * y = 20.9

21.2 - 3.2 * y + 3 * y = 20.9

-0.2 * y = 20.9 - 21.2

y = -0.3 / -0.2

y = 1.5

now for x:

x = (26.5 - 4 * 1.5) / 5

x = 4.1

This means that the length of the pencils is 4.1 inches and for the crayons 1.5 inches

5 0
3 years ago
Below is the table of values of a function. Write the output when the input is n.
attashe74 [19]

Answer:

output = n + 2

Step-by-step explanation:

from the table of input/ output values

2 → 4 is 2 + 2 = 4

5 → 7 is 5 + 2 = 7

9 → 11 is 9 + 2 = 11

Thus to obtain the output add 2 to the input

When input is n then output is n + 2

3 0
2 years ago
What is the geometric mean of 6 and 9
Dmitry [639]
6+9=15
15 Divided by 2=7.5
Therefore your answer will be 7.5
4 0
3 years ago
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On February 13th you deposit you’re bank account .on April 12th you withdraw $125 and on May 6th you deposit$25.how much money d
timama [110]
How much was deposited into the bank account?
7 0
3 years ago
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