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Sever21 [200]
3 years ago
12

Which system is most easily solved by graphing and why?

Mathematics
1 answer:
inn [45]3 years ago
8 0

Answer:

System A should be solved by elimination because you can easily cancel out the 3m to solve.

System B should be solved by substitution.  Since the an equation for the y value is given, you can easily substitute it into the other equation.

System C should be solved by graphing.  You don't have to worry about any slopes or intercepts to graph.  You can graph it using only whole numbers.

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Solve quadratic equation (x-3)^2+5=14
laiz [17]

Answer:

the Answer is 14=5+2^(3-x)

Step-by-step explanation:

6 0
3 years ago
The height of dachshuds is usually 1/3 their length. If Molly is 20 inches long how tall is she?
Llana [10]
The question is asking for 1/3 of Molly’s length, which is 20 inches. The word of in this context indicates multiplication, which means you should multiply 20 by 1/3.
1/3 x 20 = 6.666666 (repeating) or 6.7 (rounded)
Therefore, Molly is 6.7 inches tall.
6 0
3 years ago
PLZ HELP I NEED THIS TODAY!!!!Write an expression for the perimeter of the triangle shown below: A triangle is shown with side l
qaws [65]
All you have to do is combine like terms here...all the x's and then all the constants.  2.3x + 2x -.2x = 4.1x; 14 + 15 = 29, so the perimeter is 4.1x + 29,  A above.
8 0
3 years ago
Student grades on a chemistry exam were: 77, 78, 76, 81, 86, 51, 79, 82, 84, 99
IrinaK [193]

Answer:

Step-by-step explanation:

A) Stem-and-leaf plot

stem          leaf

5                 1

7                 6,7,8,9

8                 1,2,4,6

9                  9

B) Outlier

Could consider 51 an outlier.

3 0
3 years ago
You and your friends have just measured the heights of your dogs. The heights are 600mm, 470mm, 170mm, 430mm and 300mm. Find out
Rufina [12.5K]

Answer:

To find the mean, you have to add all numbers together and divide them by the number of data points.

let me show what I mean:

The heights of the dogs are 600,470,170, 430,300.

Step-by-step explanation:

600+470+170+430+300.

1970.

Now we have to divide 1,970 by 5 ( because we are given 5 data points)

The mean is:

1970/5=394

Variance: First, arrange the data from least to greatest.

s2 = 27130

Standard Deviation: 164.71187

3 0
3 years ago
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