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Brrunno [24]
3 years ago
8

What all numbers whose absolute value is 6

Mathematics
1 answer:
GalinKa [24]3 years ago
3 0

Answer:

6, -6

Explanation:

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The expression 3x2−5x2simplifies to −2x2<br><br> is this true?
Helga [31]

Answer:

I dont think so I would look at it as how did they get the -2

5 0
3 years ago
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A California licence plate consists of a sequence of seven symbols: number, letter, letter, letter, number, number, number, wher
tino4ka555 [31]

Answer:

There is a 44.73% probability that all symbols are different.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

There are 26 total letters and 10 total digits.

The plate has the following format:

number, letter, letter, letter, number, number, number

Total outcomes

Each number can have 10 values.

Each letter can have 26 values.

There are four numbers and 3 letters.

So there are

10^{4}*26^{3} = 175760000 possible plates

Desired outcomes

We cannot have repeated values.

So, for example, the first number can be any of the 10 digits. The second can be any of them, bar the first one. So 9 possible digits

The same logic for the letters, 26, then 25, then 24.

So there are

10*26*25*24*9*8*7 = 78624000 plates in which all symbols are different.

(a) What is the probability that all symbols are different

P = \frac{78624000}{175760000} = 0.4473

There is a 44.73% probability that all symbols are different.

7 0
3 years ago
Rewrite with only sin x and cos x. (6 points) cos 2x - sin x
velikii [3]

Answer:

The answer is a. cos2x - sin2x - sin x. Use the rule: cos2x = (cos^2)x - (sin^2)x. So, substitute cos2x in the expression: cos2x - sinx = ((cos^2)x - (sin^2)x) - sinx = (cos^2)x - (sin^2)x - sinx. Therefore, choice a. is correct choice.

4 0
3 years ago
Classify each statement based on whether a positive or negative rational number represents it. elevation of 3,234 feet above sea
Leya [2.2K]

Answer:

elevation of 3,234 feet above sea level   Positive

losing $32.50   Negative  

depositing $230 in an account    Positive

withdrawing $2,432 from an account   Negative

2°C below 0°C  Negative

10 floors above ground level   Positive

Step-by-step explanation:

elevation of 3,234 feet above sea level   Positive   This is above ground

losing $32.50   Negative     it is less than you had

depositing $230 in an account    Positive   putting money in

withdrawing $2,432 from an account   Negative   taking money out

2°C below 0°C    less than 0

10 floors above ground level      above 0

6 0
3 years ago
What's the radius of a circle with an area on 123 square ft
Citrus2011 [14]

The radius of the circle is the square root of (123/pi) = 6.257 feet to 3 decimal places.

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3 years ago
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