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3 years ago

Write your expression for 25 less than 53 and 5

Mathematics

1 answer:

Lilit [14]3 years ago

4 0

(53 +5) - 25 = 33

In math terms, "less than" means to subtract from something. "And" means to add something.

53 and 5 make 58

25 less than 58 is 33

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A 90% confidence interval for the average salary of all CEOs in the electronics industry was constructed using the results of a

Stella [2.4K]

Answer:

b) We are 90% confident that the mean salary of all CEOs in the electronics industry falls in the interval $139,048 to $154,144.

Step-by-step explanation:

Confidence interval:

Confidence level of x%

We build from a sample.

Between a and b.

Intepretation: We are x% sure that the population mean is between a and b.

In this question:

90%

45 CEO's

Between ($139,048, $154,144).

We are 90% sure that the mean salary of all CEO's falls within this interval.

The correct answer is:

b) We are 90% confident that the mean salary of all CEOs in the electronics industry falls in the interval $139,048 to $154,144.

4 0

3 years ago

How many solutions exist for -2|3x − 1| = 0? A. 0 B. 1 C. 2 D. 3

Svetllana [295]

Answer:

B. 1

Step-by-step explanation:

-2|3x − 1| = 0

Divide by -2

|3x − 1| = 0

There is only one solution since 3x-1 must equal 0

3x = 1

x = 1/3

6 0

3 years ago

Read 2 more answers

Which is the midpoint of the segment joining (12, 2) and (-5, – 7)?

Rainbow [258]

Answer:

$m(x, y)=(\frac{7}{2} , -\frac{5}{2} )$

Step-by-step explanation:

Midpoint of line segment is calculated as

$m(x, y)=(\frac{x_1+x_2}{2} , \frac{y_1+y_2}{2} )$ -----------(1)

Here

$(x_1, y_1) = (12,2) \ \ and \ \ (x_2, y_2) = (-5, -7)$

Substituting values in equation (1)

$m(x, y)=(\frac{12-5}{2} , \frac{2-7}{2} )$

$m(x, y)=(\frac{7}{2} , -\frac{5}{2} )$

3 0

3 years ago

There is a bag with only red marbles and blue marbles.

Lostsunrise [7]

Answer:

60 marbles in total

Step-by-step explanation:

Find how many marbles there are in total by dividing 42 by 0.7:

42/0.7

= 60

So, there are 60 marbles in total

8 0

3 years ago

Please help me with this question?

Softa [21]

Answer:

Step-by-step explanation:

5 - 26 = -21

7 0

3 years ago

Read 2 more answers