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Svetach [21]
3 years ago
12

Write the system of equations represented by the matrix.

Mathematics
2 answers:
bagirrra123 [75]3 years ago
5 0

Answer: c

Step-by-step explanation:

NARA [144]3 years ago
3 0
The answer is C...........

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For the 405 highway that car pass through a checkpoint, assume the speeds are normally distributed such that μ= 61 miles per hou
Strike441 [17]

Answer:

Z = 1

Step-by-step explanation:

Z - score

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. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 61, \sigma = 4

Calculate the Z value for the next car that passes through the checkpoint will be traveling slower than 65 miles per hour.

This is Z when X = 65. So

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

Z = \frac{65 - 61}{4}

Z = 1

4 0
3 years ago
Someone please help me, will be marked as brainliest answer !!!!!!
Alecsey [184]

Answer:

2.2

Step-by-step explanation:

2.189 to 2 significant figures is 2.2

5 0
3 years ago
Read 2 more answers
In how many ways can you select a committee of four students of a group of nine students?
egoroff_w [7]

Answer:

126

Step-by-step explanation:

n! / (r! (n-r)!)

In this case n = 9 and r = 4

9!/ (4! * (9-4)!)

9!/ (4! * 5!)

= 126

9! = 9x8x7x6x5x4x3x2x1

7 0
3 years ago
Sub to pewdiepie. Help make him number one again. ​
Vladimir [108]

Answer:

make me brainliest i have been subbed for a couple yrs not joking

Step-by-step explanation:

6 0
3 years ago
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the population of Glendale this year is 3,200 more than half of last year's population. the population this year is 26,300 which
zmey [24]
26,300 = 1/2x + 3200......with x being last years population
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3 years ago
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