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V125BC [204]
3 years ago
15

Identify the domain and range. y = –1.5x²

Mathematics
1 answer:
Nadya [2.5K]3 years ago
6 0
<span>
since y = –1.5x² its domain is  R=] -infinity,  infinity[
the inverse of y
</span>–1/1.5 y = x² , and x = sqrt ((–1/1.5) y) , and f^-1 (x) = sqrt ((–1/1.5) x)
its domain is –1/1.5) x>=0, so x<=0, 
from where, the range of y = –1.5x² is the interval ]-infinity, 0]
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Graph the line with slope -2 passing through the point (3,4)
Maurinko [17]

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Step-by-step explanation: In this problem, we're asked to graph the line that contains the point (3,4) and has a slope of -2.

We would start things off by plotting our point, (3,4).

If you need a review on plotting points, take a look below.

<u />

<u>The first number in our point represents the x coordinate or how far we move to the left or right from the origin.</u>

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<u>The second number in our point represents the y coordinate or how far we move up or down from the origin.</u>

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So we go over 3 units and up 4 units and call that point A.

In order to graph a line however, we need two points

and that's where our slope comes in.

Remember that <em>slope</em> means <em>rise</em> over <em>run</em>. So from our original point that we have already plotted, we rise -2 units and run 1 unit.

When you have a slope that's an integer like -2, just put it over 1.

After rising 2 units and running 1 unit, plot your second point

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You could if you wanted to continue to plot more and more points but we just need at least two points to graph a line.

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8 0
3 years ago
A laundry basket contains 3 red socks and 33 pink socks.
DochEvi [55]

Answer:

1/3

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If 2 out of the 6 socks are red then the odds of you picking one randomly are 2/6 which equals 1/3

6 0
2 years ago
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What is the sum of the sequence 1+3+5+7+...+99<br> Use Gauss's approach to find the following sum.
jenyasd209 [6]
Gauss's approach is to add the same sequence in reverse order, namely

S=1+3+5+7+......+95+97+99
S=99+97+95+......+7+5+3+1
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=> sum = (2S)/2 = 5000/2=2500.
5 0
3 years ago
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Irina18 [472]

Answer:

6π Km

Step-by-step explanation:

The arc length is calculated as

arc = circumference of circle × fraction of circle

    = 2πr × \frac{120}{360}

   = 2π × 9 × \frac{1}{3}

   = 18π × \frac{1}{3}

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6 0
3 years ago
100 = 10 to the power of what
Greeley [361]

Answer:

10 to the power of 2

Step-by-step explanation:

5 0
3 years ago
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