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olga2289 [7]
2 years ago
13

PLS HELP QUICK I WILL GIVE BRAINLIEST

Mathematics
2 answers:
Volgvan2 years ago
7 0

Answer:

B

Step-by-step explanation:

The equation for B equals a negative answer

drek231 [11]2 years ago
3 0

Answer:

sorry i read wrong it is B xd

Step-by-step explanation:

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A sample of 75 information systems managers had an average hourly income of $40.75 with a standard deviation of $7.00. The 95% c
IrinaVladis [17]

Answer: c. 39.14 to 42.36

Step-by-step explanation:

We want to determine a 95% confidence interval for the average hourly wage (in $) of all information system managers

Number of sample, n = 75

Mean, u = $40.75

Standard deviation, s = $7.00

For a confidence level of 95%, the corresponding z value is 1.96. This is determined from the normal distribution table.

We will apply the formula

Confidence interval

= mean +/- z ×standard deviation/√n

It becomes

40.75 +/- 1.96 × 7/√75

= 40.75 ± 1.96 × 0.82

= 40.75 + 1.6072

The lower end of the confidence interval is 40.75 - 1.6072 =39.14

The upper end of the confidence interval is 40.75 + 1.6072 =42.36

6 0
4 years ago
What is the scale factor from ALMN to AOPQ?
Nitella [24]

Answer:

D

Step-by-step explanation:

There 2 ways to interpret this problem.

From the info given:

These two triangles are congruent by SSS and congruent triangles have congruent or equal side lengths so the answer have to be 1.

If the triangles are similar, the side lengths form a proportion of that

\frac{3}{3}   = \frac{3}{3}

So the ratio or scale factor is 1.

6 0
3 years ago
What is the area of the triangle. in square centimeters? reward is brainly
Romashka-Z-Leto [24]
It is 5.9 meters and 590 centimeters
7 0
3 years ago
2.
Tems11 [23]

the answer is 154/3cm^2

4 0
3 years ago
Read 2 more answers
Of the runners in a marathon through Northeastern Pennsylvania, 94.12% finished the race. If 2,125 runners started the race, how
Vera_Pavlovna [14]
2125 started.....94.12% finished

94.12% of 2125 = 
0.9412(2125) = 2000.05 finished


8 0
4 years ago
Read 2 more answers
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