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Gala2k [10]
1 year ago
11

Which of the following represents all solutions to the equation 1/3x^2 +10 = 7

Mathematics
2 answers:
fredd [130]1 year ago
5 0

Answer:

1 +-3i

Step-by-step explanation:

ahrayia [7]1 year ago
5 0

Answer:

answer is 1) x=±3i

Step-by-step explanation:

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What is the probability of rolling a number less than 4 on a number cube labeled 1 through 6?
Leya [2.2K]
No matter the number of times you rolled the dice, the probability of getting a number is always 1/6. But here we can choose 4 numbers ( 1 to 4) hence the probability P( 1 or 2 or 3 or 4) = 4/6 2/3  = 0.6667 = 66.67% (A)


4 0
3 years ago
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9. If ground beef costs $4.98 for 3 pounds, then what is the unit rate (cost per
Drupady [299]

Answer:

1.66 pounds

Step-by-step explanation:

4.98 dollars divided by 3 pounds

4 0
3 years ago
In a company, 37% of 1500 employees are females.work out the number of males in the company.
a_sh-v [17]
Formula:

y = p\% \times x
p = 37\% \div 100 = 0.37
y = 0.37 \times 1500 = 555
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there are 945 men working

6 0
3 years ago
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NikAS [45]
I see a blank black screen...
3 0
2 years ago
Answer the question for a normal random variable x with mean μ and standard deviation σ specified below. (Round your answer to o
vladimir2022 [97]

Answer:

x = 63.6

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X and also the area to its left. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X, which is the area to its right.

In this problem, we have that:

\mu = 38, \sigma = 11

Find a value of x that has area 0.01 to its right

This is x when Z has a pvalue of 1-0.01 = 0.99. So it is X when Z = 2.3267.

Z = \frac{X - \mu}{\sigma}

2.3267 = \frac{X - 38}{11}

X - 38 = 11*2.3267

X = 63.6

So x = 63.6

6 0
3 years ago
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