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Ronch [10]
2 years ago
9

What are the solutions of the quadratic equation? 3x? - 23x + 40 = 0

Mathematics
1 answer:
Aleks04 [339]2 years ago
4 0
The correct answer would be 2
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Angle BCD is a circumscribed angle of circle A. Angle BAC measures 53°.
Pachacha [2.7K]

Answer:

please refer the the photo bellow

answer is C. 74 degree

Step-by-step explanation:

8 0
3 years ago
When Hailey commutes to work, the amount of time it takes her to arrive is normally distributed with a mean of 21 minutes and a
miskamm [114]

Answer: 135 days

Step-by-step explanation:

Since the amount of time it takes her to arrive is normally distributed, then according to the central limit theorem,

z = (x - µ)/σ

Where

x = sample mean

µ = population mean

σ = standard deviation

From the information given,

µ = 21 minutes

σ = 3.5 minutes

the probability that her commute would be between 19 and 26 minutes is expressed as

P(19 ≤ x ≤ 26)

For (19 ≤ x),

z = (19 - 21)/3.5 = - 0.57

Looking at the normal distribution table, the probability corresponding to the z score is 0.28

For (x ≤ 26),

z = (26 - 21)/3.5 = 1.43

Looking at the normal distribution table, the probability corresponding to the z score is 0.92

Therefore,

P(19 ≤ x ≤ 26) = 0.92 - 28 = 0.64

The number of times that her commute would be between 19 and 26 minutes is

0.64 × 211 = 135 days

8 0
3 years ago
KLMN is a parallelogram. Identify m∠N.
Aleonysh [2.5K]
80 degrees hope it helps
8 0
3 years ago
Maria earns $5.00 per hour. How much will she earn if she works 7 hours?
stealth61 [152]

Multiply the money * the hours

5*7= 35

Answer : $35

3 0
3 years ago
Read 2 more answers
If we reject the null hypothesis in a test using analysis of variance, we are concluding that
Bond [772]
You would be concluding that <span>the populations from which our samples come are different. I hope this helps.</span>
7 0
3 years ago
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