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neonofarm [45]
3 years ago
8

POINTS PLZ HELP

Mathematics
2 answers:
Savatey [412]3 years ago
8 0

Answer:$12,800

Step-by-step explanation:

Add 400 to every n in the equation, I’ll be using y for the “p(n)” part cus it always confuses me like that.

Y=52(400)-0.05 x 400^2

=20,800 - 0.05 x 160,000

=20,800 - 8,000

=12,800

Sunny_sXe [5.5K]3 years ago
7 0

Answer:

G

Step-by-step explanation:

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What is the degree of polynomial 2x^7+4-5x^8-4x
MAVERICK [17]

Answer:

15

Step-by-step explanation:

7+8

7 0
3 years ago
A quality control manager at a factory selects 7 light bulbs at random for inspection out of every
shutvik [7]

Answer:

350 lightbulbs

Step-by-step explanation:

First find the number of batches made.

20,000 divided by 400 = 50

This means that there are 50 batches in which 7 light bulbs will be selected at random to be inspected.

We can multiply the number of batches to the lightbulbs being inspected.

50 times 7 = 350

Therefore, 350 lightbulbs will be inspected.

Please tell me if I am incorrect :)

6 0
3 years ago
A psychology professor wants to know whether verbal ability is related to memory quality in current first-year students at her s
alexgriva [62]

Answer:

The  variable are

A and  B

Step-by-step explanation:

Generally we can define a variable as a name of a placeholder representing a value  now considering the option to be selected from we see that

    The students' verbal SAT scores is a variable  because it is a phrase or a place holder that represent a value (in the is case a  numerical value)  which the score its self

    The second option  The students' percentage of words that were correctly recognized on the original list is also a variable because it is a placeholder of a name (in this case a phrase ) that represented the actual value itself

  The  third option The 75 students is not a variable because it is not representing any value but itself is the value

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8 0
3 years ago
A summer camp has 400 ft of float line with which to rope off three adjacent rectangular areas of a lake for swimming? lessons,
Rashid [163]

Answer:

a) A = x*(400 - 4*x)

b) domain of function A(x) is ( 0 , 100 )

c) dimension of swimming section x = 30 ft maximizes area.

Step-by-step explanation:

Given:

- Total length of float-line used L = 400 ft

- Inner sections length x

Find:

a) Express the total area A as a function of x

b) Find the domain of the function

c) Using the graph, find the dimensions that leads to largest area

Solution:

- The amount of side length of the rectangle can be calculated from the total length given y:

                                 y = L - x - x - x - x

                                 y = L - 4*x

                                 y = 400 - 4*x

- The area of a rectangle is as follows:

                                 A = x*y

- Replace y with the expression derived first:

                                A = x*(400 - 4*x)

- To find the domain of the function we know that A >= 0:

                                 400*x - 4x^2 > 0

                                 x(400 - 4x) > 0

                                 x > 0 , 400 - 4*x < 0

                                 x < 100

- Hence, the domain of function A(x) is ( 0 , 100 )

- From the graph given, we can see that Area is maximum when x = 30 ft. Denoted by the turning point of the graph.

- Hence, the dimension of swimming section x = 30 ft maximizes area.

5 0
3 years ago
HELPPPPPPPP
Lynna [10]
Yes, you are correct, the answer is y = 20x + 40. 40 is the y-intercept value and 20 is the slope because that is the fee that must be payed every month, or x amount of times.
7 0
3 years ago
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