Write a Doubles fact you can use to find the sum. Write the sum 2+3

Mathematics

1 answer:

In-s [12.5K]3 years ago

6 0

3+3 is the answer to this

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What is the fourth root of -16?

Zarrin [17]

Answer:

The answer to your question is 2i

Step-by-step explanation:

$\sqrt[4]{-16}$

- Get the prime factors of -16

- 16 2

- 8 2

- 4 2

- 2 2

16 = 2⁴

- Express the -16 as a power

$\sqrt[4]{-2^{4}} or \sqrt[4]{2^{4}i^{2}}$

Remember that -1 = i²

- Get the fourth root of -16

6 0

3 years ago

How many different 11-letter arrangements can be made using the letters in the word Firecracker?

zhenek [66]

Answer:

Total number of arrangements = 1,663,200

Step-by-step explanation:

Given:

11 - letter

FIRECRACKER

F = 1

I = 1

R = 3

E = 2

C = 2

A =1

K = 1

Find:

Total number of arrangements = ?

Computation:

Note: Repeated letter will be avoid.

$Number\ of\ arrangements = \frac{!11}{!3 \times !2 \times !2}\\\\Number\ of\ arrangements = \frac{!11}{!3 \times !2 \times !2} \\\\Number\ of\ arrangements = \frac{11 \times 10 \times 9 \times 8 \times 7 \times 6 \times 5 \times 4 \times 3}{3 \times 2 \times 2 } \\\\Number\ of\ arrangements = 1,663,200$