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expeople1 [14]
2 years ago
10

Solve the equation for x. Write your answers as fractions. x^2 = 49/100 The solutions to the equation are____and____?

Mathematics
1 answer:
exis [7]2 years ago
4 0

Answer:

Step-by-step explanation:

x^2 = (49/100)

x = (7/10) and -(7/10)

If x = (7/10), then x^2 = 49/100

If x = -(7/10), then x^2 = 49/100

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50/250 = 1/5 = 0.20 = 20%

Answer: 20%

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In the exam 45% students failed and 550 students were successful. The total number of students appeared in the exam.
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1000

Step-by-step explanation:

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2 years ago
A license plate is to consist of 5 digits followed by 5 uppercase letters. Determine the number of different license plates poss
EastWind [94]

Answer:

5.3044992\times 10^{10}

Step-by-step explanation:

We are given that a license plate consist of 5 digits and 5 uppercase letters

Digits used=0,1,2,..9

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Repetition is not allowed

Total number of odd digits=(1,3,5,7,9)=5

The first place filled by 5

Second place filled by 4

Third place filled by 8

Fourth place filled by 7

Fifth place filled by 6

Sixth place filled by 26

Seventh place filled by 25

Eighth place filled by 24

Ninth place filled by 23

Tenth place filled by 22

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7 0
3 years ago
A researcher wants to estimate the mean commute time of residents in Westchester County. The researcher samples 40 commuters and
Ksenya-84 [330]

Answer:

21.759

Step-by-step explanation:

Given that :

Mean (m) = 25

Standard deviation (s) = 12.5

Sample size (n) = 40

α = 90%

The confidence interval is obtained using the relation:

Mean ± Zcritical * s/sqrt(n)

Zcritical at 90% confidence interval = 1.64

25 ± 1.64 * (12.5/sqrt(40))

Lower boundary : 25 - 1.64(1.9764235) = 21.75866546

Upper boundary : 25 + 1.64(1.9764235) = 28.24133454

(21.759, 28.241)

Hence, lower bound of confidence interval is : 21.759

4 0
2 years ago
Divide polynomial by the monomial. Simplify answer completely.
forsale [732]

Answer:

Hi my lil bunny!

❀ _____.______❀_______._____ ❀

- ( 6x + 1 - \frac{2}{5x} ) or it could be - \frac{30x^2 + 5x -2}{5x}

Step-by-step explanation: Factor the numerator and denominator and cancel the common factors. OR Move the negative in front of the fraction.

Try both of them because they both could be right.

❀ _____.______❀_______._____ ❀

Hope this helped you.

Could you maybe give brainliest..?

7 0
3 years ago
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