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Umnica [9.8K]
3 years ago
14

Х A number decreased by 4 is greater than 13.

Mathematics
1 answer:
balandron [24]3 years ago
6 0

Answer:

17

Step-by-step explanation:

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Determine the IQR of this data then indicate whether the data set contains any outliers . Explain how you determined this
slega [8]
Place the values in ascending order first:

4, 10, 10, 11, 12, 12, 12, 12, 13, 13, 15, 15, 17, 18, 19, 20

There are 16 values

IQR is 3/4th term - 1/4th term

The 12th value is 15 while the 4th value is 11

Therefore IQR = 15-11 which is 4

I would say the outlier is 4.

Justification: Figure out the mean with the value of 4 then discount it to see whether the mean is affected by the outlier.
6 0
3 years ago
Solve for W.<br><br> 4w-4+2(5w+8)=-2(w+3)<br><br> Simplify your answer as much as possible.
gayaneshka [121]

Answer:

w = -\frac{9}{8}

Step-by-step explanation:

The question is  4w-4+2(5w+8)=-2(w+3)

We can first use distributive property to simplify, the distributive property is  a(b+c)=ab+ac

Thus we have:

4w-4+2(5w+8)=-2(w+3)\\4w-4+10w+16=-2w-6

<em>Now we combine like terms and simplify to get the final answer for w</em><em>.</em>

4w-4+10w+16=-2w-6\\14w+12=-2w-6\\14w+2w=-6-12\\16w=-18\\w=\frac{-18}{16}\\w=-\frac{9}{8}

Thus, w = -\frac{9}{8}

8 0
3 years ago
Read 2 more answers
A line passes through the points (–1, –5) and (4, 5). The point (a, 1) is also on the line.
leva [86]
Find the equation of the line through <span>the points (–1, –5) and (4, 5).  First, find the slope:  m = rise / run = 5/10 = 1/2.

Then the equation is y-5=(1/2)(x-4).  If (a,1) is on this line, (a,1) must satisfy the given equation.  Let y=1 and solve for x:

1-5 = (1/2)(x-4)   Mult both sides by 2 to get -2 = x-4.   Then x = -4+2 = -2

So (-2,1) is also on the line.</span>
4 0
4 years ago
Read 2 more answers
Help me out with this math problem for 50 points!!!
spin [16.1K]

Answer:

A = 84 ft^{3}

Step-by-step explanation:

To find the area of a trapezoid, use this equation:

A = \frac{a+b}{2}h

a = top base

b = bottom base

h = height

Let's classify all the sides:

a = 4 ft

b = 10 ft

h = 12 ft

Now, let's plug all these into the equation:

A = \frac{4+10}{2} (12)

A = \frac{14}{2}(12)                                    Add what's in the numerator

A = 7(12)                                      Divide 14 by 2

A = 84 ft^{3}                                     Multiply 7 by 12

So, the area of the trapezoid is 84 ft^{3}.

Hope this helps!!

8 0
2 years ago
Read 2 more answers
. a bag contains 2 white marbles and seven purple marbles. Two marbles are drawn at random. One marble is drwan and not replaced
Mashutka [201]
1) the probability of drawing a white marble is 1 out of 9. purple is 8out of 9
2) the probability of drawing two white marbles is 2out of 9
3) two purple because every time you draw if you put it back in the probability doesn't change
7 0
3 years ago
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