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LUCKY_DIMON [66]
3 years ago
8

PLZ PLZ PLZ ANSWER THIS!!!!

Mathematics
1 answer:
snow_lady [41]3 years ago
5 0

Answer:

a.

Step-by-step explanation:

girls 60/50

boys 40/50

40/50 is 10

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Simplify the expression 256b − b by combining like terms.
iris [78.8K]

Answer:

255b

Step-by-step explanation:

subtract 256b by b

7 0
3 years ago
An aquarium tank that measures 2.4 m high, 6 m long, and 1.5 m wide is completely filled with water. The density of water is 1,0
notsponge [240]

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Step-by-step explanation:

4 0
3 years ago
6.) the following function represents the profit P(n) in dollars that a concert promoter makes by selling tickets for n dollars
marissa [1.9K]
For Part A, what to do first is to equate the given equation to zero in order to find your x intercepts (zeroes)

0=-250n^2+3,250n-9,000 after factoring out, we get

-250(n-4)(n-9) and these are your zero values.

For Part B, you need to square the function from the general equation Ax^2+Bx+C=0. So to do that, we use the equated form of the equation 0=-250n^2+3,250n-9,000 and in order to have a positive value of 250n^2, we divide both sides by -1

250n^2-3,250n+9,000=0

to simplify, we divide it by 250 to get n^2-13n+36=0 or n^2-13n = -36 (this form is easier in order to complete the square, ax^2+bx=c)

in squaring, we need to apply <span><span><span>(<span>b/2</span>)^2 to both sides where our b is -13 so,
(-13/2)^2 is 169/4

so the equation now becomes n^2-13n+169/4 = 25/4 or to simplify, we apply the concept of a perfect square binomial, so the equation turns out like this 

(n-13/2)^2 = 25/4 then to find the value of n, we apply the square root to both sides to obtain n-13/2 = 5/2 and n is 9. This gives us the confirmation from Part A. 

For Part C, since the function is a binomial so the graph is a parabola. The axis of symmetry would be x=5.

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7 0
3 years ago
1. Determine the value of y, if x is 5 for the function y = x2 -9.
user100 [1]
Sub in 5 for x
y=(5)2 -9
y= 10-9
y= 1
4 0
3 years ago
Which point on the number line is located at approximately 13/17
Dmitry_Shevchenko [17]
A number line consists only of one axis, conventionally a horizontal axis. Just create a line, and scale it according to practicality and your preference. Usually, it has an interval of 1 unit. But for this case, since it is in fraction form, the interval should be smaller so that you can see clearly where it is located. 

In decimal form, 13/17 is equal to 0.7647058824. Let's just round this off to 0.764, that can suffice already. So, you would expect it to be between 0.7 and 0.8 on the number line. Just estimate visually where it is located. Since, it is more than 0.75, the dot would be just slightly closer to 0.8 than 0.7. The exact location is shown in the attached picture.

7 0
3 years ago
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