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choli [55]
2 years ago
14

} " align="absmiddle" class="latex-formula">
what's the answer po?
​
Mathematics
1 answer:
damaskus [11]2 years ago
3 0
<h3>Solution:</h3>

1 -  {25x}^{2}  \\  =  (1)^{2}  - (5x {)}^{2}  \\  = (1 - 5x)(1 + 5x)

<h3>Answer:</h3>

(1 - 5x)(1 + 5x)

Hope it helps.

Do comment if you have any query.

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When Harper commutes to work, the amount of time it takes her to arrive is normally distributed with a mean of 24 minutes and a
Korvikt [17]

Answer:

\mu -2\sigma = 24-2*3= 18

\mu -2\sigma = 24+2*3= 30

So then we can conclude that we expect the middle 95% of the values within 18 and 30 minutes for this case

Step-by-step explanation:

For this case we can define the random variable X as the amount of time it takes her to arrive to work and we know that the distribution for X is given by:

X \sim N(\mu = 24, \sigma =3)

And we want to use the empirical rule to estimate the middle 95% of her commute times. And the empirical rule states that we have 68% of the values within one deviation from the mean, 95% of the values within two deviations from the mean and 99.7 % of the values within 3 deviations from the mean. And we can find the limits on this way:

\mu -2\sigma = 24-2*3= 18

\mu -2\sigma = 24+2*3= 30

So then we can conclude that we expect the middle 95% of the values within 18 and 30 minutes for this case

7 0
3 years ago
Ten students were polled about their favorite foods. Four students voted for pizza, three students voted for chicken, two voted
Natali5045456 [20]

Answer:

D

Step-by-step explanation:

Pizza+Tacos+spaghetti+Chicken=10

Pizza+Chicken=7

8 0
2 years ago
Read 2 more answers
Simplify: −3 • −26<br><br> A. −78<br> B. −68<br> C. 68<br> D. 78
hammer [34]
-3 x -26 = 78

meaning the answer is D.

The reason the answer is D, is because two negatives when multiplied or divided become positive. Only when multiplied or divided does this occur.
3 0
1 year ago
Solve the equation<br> 7h-5(3h-8) = 72
frosja888 [35]

Answer:

h = -4

Step-by-step explanation:

7h-5(3h-8) = 72

Distribute

7h - 15h +40 = 72

Combine like terms

-8h +40 = 72

Subtract 40 from each side

-8h+40-40 = 72-40

-8h = 32

Divide each side by -8

-8h/-8 = -32/-8

h = -4

3 0
3 years ago
Read 2 more answers
please help me on this I'm struggling on this thanks for your helping of you answer.please show your work:-)
PilotLPTM [1.2K]
A. is 1/4 so that would be 25%
sorry thats all i know
6 0
3 years ago
Read 2 more answers
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