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Stolb23 [73]
3 years ago
14

Simplify: -14cd-2c^2d^2+15cd+9c^2d^2-15cd

Mathematics
1 answer:
MaRussiya [10]3 years ago
7 0

7c^2d^2-14cd

Hope this helps a bunch!!!!!!!!!!!!

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Pren recorded this data set, which contains an outlier. 204, 216, 111, 224, 230, 211, 210, 198, 200, 218 What numbers represent
melamori03 [73]

Answer:

The correct option is D.

Step-by-step explanation:

The given data is

204, 216, 111, 224, 230, 211, 210, 198, 200, 218

Arrange the data in ascending order,

111, 198, 200, 204, 210, 211, 216, 218, 224, 230

The range is the difference between maximum value and minimum value.

Range=\text{upper limit}-\text{lower limit}

Range=230-111=119

Divide the data it two equal parts.

(111, 198, 200, 204, 210), (211, 216, 218, 224, 230)

Now divide the each in two equal parts.

(111, 198), 200, (204, 210), (211, 216), 218, (224, 230)

The mid value of first part is 200 and the mid value of second part is 218.

\text{lower quartile}=Q_1=200

\text{Upper quartile}=Q_3=218

Therefore option D is correct.

5 0
3 years ago
Read 2 more answers
the distance between two cities on a map is 4 inches. if the map scale is 1 inch : 10 miles how far apart are the actual cities?
Bas_tet [7]

The cities are 40 miles apart

8 0
3 years ago
Read 2 more answers
in Sean's fish tank there are six times as many goldfish as Guppies. There are a total of 21 fish in the tank. How many more gol
Verizon [17]
15 more. There are 3 guppies and 18 goldfish. Because 3+18=21 and 3x6=18
4 0
3 years ago
Does anyone know how to do this ??? <br> -view attachment
cricket20 [7]

As soon as I read this, the words "law of cosines" popped
into my head.  I don't have a good intuitive feeling for the
law of cosines, but I went and looked it up (you probably
could have done that), and I found that it's exactly what
you need for this problem.

The "law of cosines" relates the lengths of the sides of any
triangle to the cosine of one of its angles ... just what we need,
since we know all the sides, and we want to find one of the angles.

To find angle-B, the law of cosines says

       b² = a² + c² - 2 a c cosine(B)

B  =  angle-B
b  =  the side opposite angle-B = 1.4
a, c = the other 2 sides = 1 and 1.9

                  (1.4)² = (1)² + (1.9)² - (2 x 1 x 1.9) cos(B)

                 1.96  =  (1) + (3.61)  -  (3.8) cos(B)

Add  3.8 cos(B)  from each side:

                 1.96 + 3.8 cos(B) = 4.61

Subtract  1.96  from each side:

                             3.8 cos(B) =  2.65

Divide each side by  3.8 :

                                  cos(B)  =  0.69737  (rounded)

Whipping out the
trusty calculator:
                                 B  = the angle whose cosine is 0.69737

                                      =  45.784° .

Now, for the first time, I'll take a deep breath, then hold it
while I look back at the question and see whether this is
anywhere near one of the choices ...

By gosh !  Choice 'B' is  45.8° !                    yay !
I'll bet that's it !

8 0
3 years ago
A trader made a profit of 24% by selling an article for 3,720cedis how much should he have sold it to make a profit of 48%​
arsen [322]
The answer is 7440
24%=3720
48%= 3720*2
48% = 7440
6 0
3 years ago
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