MATHEMATICS MIDDLE SCHOOL

Using the polynomials Q = 3 x2 + 5 x - 2, R = 2 - x2 , and S = 2 x + 5, perform the indicated operation. Q - [ R + S ]

Answers

Answer 1
Answer:

Answer:

4x^2 + 3x - 9

Step-by-step explanation:

First, add together functions R(x) and S(x).  Stack them vertically and combine like terms:

R(x) = 2 - x^2

S(x) = 2x + 5

------------------

(R+S)(x) = -x^2 + 2x + 7

Now subtract the above result from Q(x):

Q(x) - (R(x) + S(x)) =  3x^2 + 5x - 2  + x^2 - 2x - 7, or 4x^2 + 3x - 9

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In pattern number 9,12,15,18,21 what come next

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after 21 comes 24 and just keep adding three
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The length of a rectangle is 2 inches more than twice its width. Write an equation relating to its length of the rectangle to its width w.

Answers

L=2w+2. (2 times width plus 2 inches)
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A container holds 5 l of fluid. does it hold more or less than 500ml of fluid

Answers

if a container holds 5 l of fluids then all you do is 500/5 which equals to 100 so the container does NOT hold more than 500ml of fluids
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How to solve question 59

I NEED HELP

Answers

Answer: (a) 0.87x

              (b) 0.87x = 174

              (c) 200 players

Step-by-step explanation:

\nLet x be the total number of players who signed up for the season,

\nsince 13% dropped , it implies that 13% of x dropped out , which means 0.13x dropped out.

\nTo know the players who finished the league , it implies

\nx - 0.13x = 0.87x

\nThis means that 0.87x finished the league

\n(a) The expression for the number of players who finished the season will therefore be 0.87x , this is as a result of subtracting those that dropped out (0.13x) from those that signed up ( x)

\n(b)  The equation to represent the number of players who signed up for the soccer will thus be:

\n\nx - 0.13x = 174 , since it was given that 174 finished the league, this implies

\n0.87x = 174

\n(c) Solving the equation, we have

\n0.87x = 174

\n0,87x / 0.87 = 174 / 0.87

\nx = 200

\nTherefore 200 players signed up for the league

Step-by-step explanation:

a. 87% finished the season because 13% dropped

b. 100×174 = 87x

c. 17400 = 87x ➡ x = 17400 ÷ 87 ➡ x = 200 player signed up for the soccer league.

What is 15.75 divided by 0.25 using a Giant One

Answers

The answer to the question will be 63.
You can either do that in long form or compact method of division. I did that in compact method on a looseleaf and the answer I got is 63. I think compact method would be the easiest to find the answer. So when you complete the division you would be sure to receive the answer 63. 

Hope that Helped! :D

What three ways do u write 15638 using only hundreds tens ones

Answers

Question is vague, but here are some ideas. 
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312 * 50 + 38 = 15638 
78 * 200 + 38 = 15638
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