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lesya [120]
3 years ago
6

1/3 + ( -2 1/4) Solve this equation and show your work! answer has to be a number!

Mathematics
2 answers:
Sedbober [7]3 years ago
5 0

Answer:

<em>-1.9</em>

Step-by-step explanation:

<em>i used a calculator and the answer was -1.91666666667 and i just cut it down to -1.9 was it right?? im not sure..So you dont have to use that answer!!</em>

algol133 years ago
4 0

Answer:

-1.91666666667

Step-by-step explanation:

1/3 + ( -2 1/4)

1/3 -2 1/4 = -1.91666666667

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What equation is the inverse of y=7x^2-10?
tangare [24]

Answer:

Option 2: y = ±sqrt(\frac{x+10}{7})

Step-by-step explanation:

y = 7x^2 - 10

         To find the inverse of a function, you must swap the y and x.

x = 7y^2 - 10

         Now I will just simplify to have y by itself on the left hand side.

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8 0
3 years ago
If a normal distribution has a mean of 44 and a standard deviation of 8, what is the zscore for a value of 50
Misha Larkins [42]

Answer:

0.75

Step-by-step explanation:

Z-score tells the no. of standard deviations a data point is from the mean.

the formula for z score is given by

z-score= (data value - mean) / standard deviation

Given:

mean=44

standard deviation= 8

data point=50

putting the values of mean(44), standard deviation(8) and given data value(50) in the above equation

z-score= (50-44)/8

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3 years ago
Milley wants to solve the following equations using the method of elimination:
timurjin [86]
She should multiply y = x - 2 by -4...that way one x will be -4x and the other will be 4x   and they will cancel out when added.

answer is -4
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3 years ago
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