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ioda
4 years ago
14

Solve -2x+5y-9 when y=1

Mathematics
1 answer:
bija089 [108]4 years ago
5 0
Hello there.

<span>Solve -2x+5y-9 when y=

Just c</span><span>ombine like terms
and you'll get 

</span>=<span><span>−<span>2x</span></span>−<span>3</span></span>
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Find the distance between points p(2,2) q(7,4) to the nearest tenth
Greeley [361]
If you know the horizontal distances between the two points is a positive 5, and the vertical distance is a positive 2. By using the distance formula, you can come up with sqrt(5^2+2^2) = <span>5.38516480713, which to the nearest tenth would be 5.4</span>
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3 years ago
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Please help ASAP!
madreJ [45]
If I’m not mistaken it’s $22.74 I apologize if I’m wrong.
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The distribution of annual profit at a chain of stores was approximately normal with mean \mu = \$66{,}000μ=$66,000mu, equals, d
Pepsi [2]

Answer:

The closest to the maximum profit is  x = \$ 83682

Step-by-step explanation:

From the question we are told that

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   The standard deviation is  \sigma  = \$ 21000

   The percentage of profit is  20%

Generally the closest to the maximum annual profit at a store where the executives conducted an audit is mathematically evaluated  as follows

     P(X >  x ) =  0.20

=>  P(X >  x ) = P(\frac{X -x}{\sigma }  >  \frac{x -66000}{21000} ) =  0.20

From the z-table  the z-score for  0.20  is  

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So

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4 0
4 years ago
I need help on the last part!
stellarik [79]

Answer:

0; (0, 0); 144; (3, 144)

Step-by-step explanation:

Y = distance (m)

X = time (hr)

X = 48x

If a car travels for 0 hours, it will travel __ mile(s).

y = 48x

Plug in 0 hours for x (time in hours)

y = 48(0)

Any number mutliplied by 0 equals 0

y = 0

If a car travels for 0 hours, it will travel 0 miles. This means it will pass through the point (0, 0).

(0, 0) limits our options to graphs B and D

Car travels 144 miles in 3 hours

To find how many miles it travels in 1 hour, divide 144 miles by 3 hours

144 ÷ 3 = 48

In 1 hour, a car travels 48 miles

If 48 × 3 = 144, then 48 × 4 = ?

48 × 4 = 192

When looking at graph D, there are 4 lines above 0

Counting by 48, it perfectly fits 192 by the fourth line

From (0, 0), if we move 3 units to the right we can find the third vertical line intersecting

Since the lines are counted by 48 and we are looking at the third line: 48 × 3 = 144

Use the slope to move 3 units to the right of the origin and 144 unit(s) up to the find the point (3, 144) that can be used to graph the relationship

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3 years ago
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What is r/15 &gt; -3
Sever21 [200]
I'm gonna do this 2 ways because I'm not sure what you mean about the line. I'm going to indicate greater than or equal to with >=.

1st I'll solve for

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Next I'll solve for

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So depending on if that is a 3 or -3 that is how you would do it....

So did I read the problem right?
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