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olchik [2.2K]
3 years ago
8

324.8 rounded to the nearest ten

Mathematics
2 answers:
White raven [17]3 years ago
6 0

Answer:

Step-by-step explanation:

so you take the eight and round it so then it makes a zero and the 4 becomes a 5

natta225 [31]3 years ago
4 0

Answer:

320

Step-by-step explanation:

320

As your rounding to the ten place if your number is above five you round up if its below you round down.

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Thirty-five miles per hour the same rate as?<br>150 f/min<br>1500 f/min<br>2200 f/min<br>3080 f/min
kodGreya [7K]
35\frac{mile}{hour}=?\frac{feet}{minute}\\\\&#10;1\ mile=\ 5280\ feet\\&#10;1\ hour\ =\ 60\ minute\\\\&#10;35\frac{mile}{hour}*\frac{5280}{60}=\frac{35*5280}{60}=\boxed{3080\frac{feet}{minute}}
6 0
4 years ago
How do you convert improper fractions to proper fractions
Jobisdone [24]

Answer:

Step- for example, 27/6. The fraction bar means you need to divide 27 by 6.

Divide 27 by 6. The answer is 4, with a remainder of 3. Use the answer as the whole number part of the mixed number, and place the remainder over the original denominator: 4 3/6.

5 0
3 years ago
Read 2 more answers
The graph of which functions has an axis of symmetry at x = -1/4?
prisoha [69]

Answer:

2x^2 + x - 1

If I did anything you didn't understand let me know so I can explain.  

Step-by-step explanation:

All of them are quadratics so let's use that.

The first one is 2x^2 + x - 1.  To find the axis of symmetry the strategy is usually to find the two zeroes of a quadratic and pick the number between them.  Something to  notice though is that 2x^2 + x - 1 is just 2x^2 + x sshifted down 1, so they both have the same axis of symmetry.  So I am going to ignore the constant, because then finding the zeroes is much much simpler.  I am going to do this with all opions.

So 2x^2 + x - 1 I am just going to use 2x^2 + x.  If you factor out an x you get x(2x + 1)  So now we have it in factored form and we know the zeroes are 0 and -1/2.  The number directly in between these is -1/4, so the axis of symmetry is x = -1/4.  I don't know if there is only one with that axis of symmetry so i am going to check the rest.

2x^2 - x + 1 means we are only going to look at 2x^2 - x.  factoring we get x(2x - 1) so the zeroes are 0 and 1/2, so the axis of symmetry is at 1/4.

x^2 + 2x - 1 we only use x^2 + 2x.  Factored form is x(x+2) so zeroes are 0 and -2 whichh means axis of symmetry is -1

x^2 - 2x + 1 has the same axis of symmetry as x^2 - 2x, which has zeros at 0 and 2 so the axis of symmetry is at 1.

So yep, it was just the first one.

7 0
3 years ago
Read 2 more answers
Determine the intercepts of the line 3x+2y=5
julsineya [31]
Y intercept:

y = (-3x + 5)/2

x intercept;

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hope this helps
5 0
3 years ago
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Please Help!!!!!! Use what you've learned today about the sum of the interior angles of triangles and quadrilaterals to determin
sveta [45]

Answer:

m = 116

x = 24

y = 76

z = 40

Step-by-step explanation:

For startes the interior angles of triangles always add up to 180 degrees.

That means....

73 + 83 + x = 180

z + m + x = 180

z + y + 64 = 180

Another important fact is that two angles that are intersected by a line in the case 64 and m always add up to 180 degrees.

So m + 64 = 180

Let's start with 73 + 83 + x = 180

If you add 73 and 83 you get 156

x + 156 = 180 then subtract 156 from both sides and

x = 24

Then use m + 64 = 180 subtract 64 from both sides and

m = 116

z + m + x = 180 become

z + 116 + 24 = 180

Add 116 and 24 and you get 140

z + 140 = 180 subtract 140 from both sides and

z = 40

Check to make sure m + x + z = 180

24 + 40 + 116 = 180

z + y + 64 = 180 becomes

y + 40 + 64 = 180

40 + 64 = 104 so

y + 104 = 180 subtract 104 from both sides and

y = 76

Congratulations you have found all of the angles!

6 0
3 years ago
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