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Svetradugi [14.3K]
3 years ago
8

If the mean of 10 numbers is 45, what is their sum?

Mathematics
1 answer:
Yakvenalex [24]3 years ago
6 0
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Help me out please :)
Veseljchak [2.6K]

Answer: -6 is the answer

Step-by-step explanation:

4 0
3 years ago
A quadrilateral is dilated by a scale factor of 2. It's original side measures are 7, 14, 21, and 28.
algol13

Answer:

14,28,42 and 56

Step-by-step explanation:

Multiply all lengths by 2 as the quadrilateral is dilated by a scale factor of 2

6 0
3 years ago
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What is the equation of the line passing through the points (4, -7.5) and (6, -3.5) in slope-intercept form?
Ratling [72]

Answer:

Your answer will be

y=2x-15.5

Step-by-step explanation:

Hi, there you must know the slope-intercept form which is

y=mx+b

m=slope

b=y-intercept

You can also use

the slope formula which is

\frac{y_2-y_1}{x_2-x_1}

in this case

it will look like this

\frac{-7.5-(-3.5)}{6-4}=\frac{-4}{2}=-2

So the slope is -2

Now we will find the y-intercept

-7.5=2(4)+b

-7.5=8+b   Subtract 8 both sides

-15.5=b

Your y-intercept is -15.5

Hope this helps

6 0
3 years ago
Geometry help please show work due soon !
Thepotemich [5.8K]
R is 4 if I'm wrong sorry
4 0
3 years ago
What is the sum of the interior angles of a regular hexagon?
9966 [12]

<span>sum of the interior angles of a polygon = (n - 2) x 180
</span>hexagon has 6 sides , in this case n = 6
so
(6-2) x 180
= 4 x 180
= 720

answer
<span>c. 720</span>
7 0
3 years ago
Read 2 more answers
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