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3 years ago

Solve the expression. 2^3 + 17 - 3g4 = ?

Mathematics

1 answer:

Xelga [282]3 years ago

6 0

2^3 +17-3g•4
8+17-12g
25-12g

Hope this helps :)

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If f(x) = 2x2 - x, find f(-3). 15 21 39

elixir [45]

I believe its 21 sorry if im wrong

5 0

3 years ago

Read 2 more answers

The mean salary of 5 employees is $33700. The median is $34600. The mode is $35600. If the median paid employee gets a $3500 rai

fgiga [73]

Step-by-step explanation:

Given:

Mean = 33700

Median = 34600

Mode = 35600

The mean is the average, the median is the middle number, and the mode is the most common number.

First, we need to find the new mean (average) if one of the employees gets a 3500 raise. The average is the total salary divided by number of employees:

(5 × 33700 + 3500) / 5 = 34400

The mode is the most common number in a set. Since there are only five employees, and the mode is different than the median, then the two highest earners must have the same salary. The salaries from smallest to largest is therefore:

?, ?, 34600, 35600, 35600

When the median gets the 3500 raise, the set becomes:

?, ?, 35600, 35600, 38100

So the new median is 35600.

The most common number is still 35600. So the mode hasn't changed: 35600.

4 0

3 years ago

A noted psychic was tested for extrasensory perception. The psychic was presented with 2 0 0 cards face down and asked to determ

Natasha2012 [34]

Answer:

C. P- value < 0.04 0.05

Step-by-step explanation:

hello,

we were given the sample size, n = 200

also the probability that the psychic correctly identifies the symbol on the 200 card is

$p=\frac{50}{200}= 0.25$

using the large sample Z- statistic, we have

$Z=\frac{p- 0.20}{\sqrt{0.2(1-0.2)/200} }$

= $\frac{0.25-0.20}{\sqrt{0.16/200}}$

= 1.7678

thus the P - value for the hypothesis test is P(Z > 1.7678) = 0.039.

from the above, we conclude that the P- value < 0.04, 0.05

3 0

3 years ago

How do I solve/ set up equation? Will give brainliest pls help

slamgirl [31]

Answer:

See below ~

Step-by-step explanation:

Finding x

2x - 28 = x/2
3/2x = 28
3x = 56
x = 56/3 = 18.66666667

The exact side length of the small square is 18.66666667 cm and the exact side length of the big square is 37.3333334 cm.
The approximate side length of the small square is 18.7 cm and the approximate side length of the big square is 37.3 cm.

4 0

1 year ago

When designing a building, you must be sure that the building can withstand hurricane force winds, which have a velocity of 73mi

Vesnalui [34]

Answer- 42646.50 pounds

Area of flat surface = Area of rectangle + area of triangle

= 12.9*25 + 1/2* 7.2* 25

= 162.5 feet^2

Force exerted by wind =0 .004 * Area * velocity^2

= 42646.50 pounds

5 0

3 years ago