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aniked [119]
2 years ago
7

A box with an open top is to be constructed from a rectangular piece of cardboard with dimensions W = 14 in. by L = 20 in. by cu

tting out equal squares of side x at each corner and then folding up the sides.
I found the function that models the volume V of the box
V(x) =4x^3-68x^2+280x

But I'm having trouble with finding the the values of x for which the volume is greater than 210 in^3. (Round your answer to three decimal places.)

AND finding the largest volume that such a box can have. (Round your answer to three decimal places.)
Mathematics
1 answer:
d1i1m1o1n [39]2 years ago
7 0
VOLUME IS L × W × H

KNOW THAT OKAY 

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Based on the family the graph below belongs to, which equation could represent the graph?
Ostrovityanka [42]

Answer:

Equation 1 is the equation which represents the graph.

Step-by-step explanation:

6 0
2 years ago
Y=2(x+1)^2 has how many real roots
oee [108]

The equation y= 2(x+1)^2 has one real root and that is x=-1.

What is real roots of the equation?

    We are aware that when we resolve a linear or quadratic equation, we always arrive at the value variable of the equation, or, to put it another way, we always locate the equation's solution. This "solution" is what we refer to as the real roots. For instance, when the equation X^2-7x+12=0 is solved, the actual roots are 3 and 4.

Here given,

=> y = 2(x+1)^2

Take y=0 then,

=> 2(x+1)^2=0

=> (x+1)^2=0

=>(x+1)=0

=> x=-1

Hence the given equation has one real root and that is x=-1.

To learn more about real roots refer the below link

brainly.com/question/24147137

#SPJ1

8 0
1 year ago
Read 2 more answers
What is the exact value of cos7pi/12
777dan777 [17]

(sqrt2 - sqrt6)/4 = - 0.259

cos ((7pi)/12) = cos 105 = - 0.259

5 0
2 years ago
Sierra left $17.75 as a tip for a waiter. This was 20% of the bill before the tip. How much was her total bill before the tip
iris [78.8K]

Answer:

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Step-by-step explanation:

I believe you should just add 17.75+80%=31.95

4 0
2 years ago
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A figure is created by using four semicircles and a rectangle. which is closest to the area of the figure? ​
Katena32 [7]

Step-by-step explanation:

area of rrctangle:

12×8= 96cm²

now if rectangle dissapears and then we "glue" what's left, we gonna get two circles

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another circles radius is 4cm,so area is:

16π≈50.25

sum of all areas: S≈96+113.04+50.25≈259.28cm2

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2 years ago
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