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daser333 [38]
3 years ago
15

I am having trouble learning how to convert an equation to standard form can someone please explain this to me? ( my teacher ten

ds to make the lesson very broad ) ty!

Mathematics
1 answer:
Molodets [167]3 years ago
3 0
First, you have to simplify the equation:
y+3 = 3(x+5)
y+3=3x+15
So you multiply what’s inside the brackets (x+5) by the factor (3). So 3•x=3x, 3•5=15.
Then you rearrange the equation as necessary to convert it into standard form, which is Ax + By = C
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Factor 5x4 - 30x2 - 135.
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Answer:

-175

Step-by-step explanation:

5x4=20

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I hope this helps!

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what are the missing variables?
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3 years ago
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Leya [2.2K]

Answer:

a. The point estimate of the difference between the mean number of miles that Buffalo residents travel per day and the mean number of miles that Boston residentstravel per day is 88

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Step-by-step explanation:

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Therefore, the difference of miles=n1+n2-2=50+40-2=88

The point estimate of the difference between the mean number of miles that Buffalo residents travel per day and the mean number of miles that Boston residentstravel per day is 88.

b. The critical value of t at 95% confidence level and DoF=88 is 1.987

The interval:(x1-x2)+ (critical value* std error)

=3.9-(1.987*1.67),3.9+(1.987*1.67)

Difference between mean=(0.58171,7.21829)

The 95% confidence interval for the difference between the two population means is (0.58171,7.21829)

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3 years ago
How to find the equation of a circle
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