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3 years ago

What is the largest rectangular area that can be enclosed with 64m of fence?

Mathematics

1 answer:

antiseptic1488 [7]3 years ago

4 0

So yu look at the 0 put it in the same thing so divide that by 77 and then 98

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George saves 18% of his total gross weekly earnings from his 2 part-time jobs here in $6.25 per hour from one part-time job and

Sonbull [250]

His total earnings would be (18%)[$6.25(hours in 1st job) + $7.50(hours in 2nd job)]. However, we know that his total hours is 40 hours, so if we let the number of hours he spends in his 1st job be x, the number of hours in the 2nd is (40 - x).
Then his total earnings would be $(0.18)(6.25x+7.50(40-x))$ . This means that we need to know the time he spends in 1 job (either the first or the second will do).

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3 years ago

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Determine the center and radius of the following circle equation:

blagie [28]

Answer: Center: (-7,6)

Radius: 4

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3 years ago

What Part Of The Expression Below Should Be Calculated First?<br><br>8+{22×[15+(14×2)]}

weeeeeb [17]

14*2 would be calculated first

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3 years ago

Read The Question On The PNG

cricket20 [7]

Answer:

Step-by-step explanation:

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3 years ago

Guysss plsss HEELPPP ME ILL MARK BRAINLIEST PLLLSSSSSS HELP

Vitek1552 [10]

Answer:

$y=-2\,(x-6)^2+246$

with the video game cost of x = $6

This agrees with the last option in the list of possible answers

Step-by-step explanation:

Recall that the maximum of a parabola resides at its vertex. So let's find the x and y position of that vertex, by using first the fact that the x value of the vertex of a parabola of general form:

$y=ax^2+bx+c$

is given by:

$x_{vertex}=\frac{-b}{2\,a}$

In our case, the quadratic expression that generates the parabola is:

$y=-2x^2+24x+174$

then the x-position of its vertex is:

$x_{vertex}=\frac{-b}{2\,a}\\x_{vertex}=\frac{-24}{2\,(-2)}\\x_{vertex}=\frac{-24}{-4)}\\x_{vertex}=6$

This is the price of the video game that produces the maximum profit (x = $6). Now let's find the y-position of the vertex using the actual equation for this value of x:

$y=-2x^2+24x+174\\y_{vertex}=-2\,(6)^2+24\,(6)+174\\y_{vertex}=-72+144+174\\y_{vertex}=246$

This value is the highest weekly profit (y = $246).

Now, recall that we can write the equation of the parabola in what is called "vertex form" using the actual values of the vertex position $(x_{vertex},y_{vertex})$ :

$y-y_{vertex}=a\,(x-x_{vertex})^2\\y-246=-2\,(x-6)^2\\y=-2\,(x-6)^2+246$

Therefore the answer is:

$y=-2\,(x-6)^2+246$

with the video game cost of x = $6

6 0

3 years ago