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11111nata11111 [884]
3 years ago
8

Solve for the value of x in: x^2+ 6x + 25 = 0

Mathematics
1 answer:
Julli [10]3 years ago
3 0

Answer:

- \frac{3}{13}  +   \frac{2 \sqrt{79} }{13} i

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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

Total number of arrangements = 1,663,200

6 0
4 years ago
The ratio of John's money to Jimmy's money is 5:8. Jimmy spent 1/4
erma4kov [3.2K]

Answer:

a. $3600

b. 6:5

Step-by-step explanation:

Put the question into an equation:

8x - 1/4 x 8x = 5x + 450

(simplify before solving) 6x = 5x + 450

(solve) 6x-5x = 450

x = 450

This means that Jimmy had 8 x 450 $ to start with = 3600

you can check this by subtracting a quarter of 3600 from 3600 and also multiplying 450 by 5 and then obtaining their difference. You get 450!

Now ratio of new amounts:

Jimmy now has: $2700

John still has: $2250

so ratio is 2700:2250

simplify to 6:5

Hope this helps

Please mark brainiest

3 0
4 years ago
How many are 16 x 16 ?​
yan [13]

Answer:

256

Step-by-step explanation:

16 ×16= 256

Hope it works out for you

7 0
4 years ago
Read 2 more answers
If 52 is 130% of a number, is the number greater or less than 52? explain.
Natasha2012 [34]
Let, the number = x
Then, x * 130% = 52
x * 1.30 = 52
x = 52/1.30
x = 40

So, the number is less than 52

Hope this helps!
3 0
3 years ago
Find the slope and y-intercept and tell me if its proportional or non-proportional.​
weqwewe [10]

Answer:

Slope: 6

Y-intercept: 0

Proportional

Step-by-step explanation:

The equation for this table is y = 6x + 0 or just y = 6x.

y         =            6x           +                0

y-value          slope (x-value)           y-intercept

Proportional because it crosses (0,0) on the graph.

6 0
3 years ago
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