What is the length of TW? Please help me with this.

GuDViN [60]

First of all we will understand the question!!

The question is saying that you are given a function and you have to find the value of x which will give the maximum profit... Lets solve it by finding the extrema using the vertex

 $\rm \: p(x) = - 5 {x}^{2} + 30x + 8$ 

Identify the coefficients a and b of the quadratic function

 $\rm \: p(x) = { - 5x}^{2} + 30x + 8 \\ \rm \: a = - 5 \: and \: b \: = 30$ 

Since a<0, the function has the maximum value at x, calculated by substituting a and b into x=-b/2a

$\rm \: x = \frac{30}{ 2 \times (- 5)}$

Solve the equation for x

$\rm \: x = 3$

The maximum of the quadratic function is at x=3

3 0

1 year ago

If 5% more than a is b, and b is 15% less than, what is the ratio of a to c? Please answer quickly.

Cerrena [4.2K]

Answer: 24 5 + 9 = 15 + 9 = 24

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Help please it is simple

Ira Lisetskai [31]

Answer:

22 Inches Squared

Step-by-step explanation:

$A=2(wl+hl+hw)$

l = 1

w = 5

h = 1

$A=2(5*1+1*1+1*5)\\A=2(5+1+5)\\A=2(11)\\A=22$

The surface area should be 22in^2.

Brainilest appreciated.

7 0

3 years ago

Read 2 more answers

True or false: f(x) represents a function. A. True B. False

pav-90 [236]

Answer:

A.) True

Step-by-step explanation:

A set of outputs and inputs becomes a function when there is only one output per input. In this case, each "x" value only has one "y" value, making it a function.

8 0

2 years ago

At Chester’s Bakery, a box of 12 donuts sells for $8.50. What is the unit price of the donuts in the box, rounded to the nearest

sergiy2304 [10]

You would take 8.50 and divide it by 12.
to get $0.71

7 0

3 years ago