MATHEMATICS MIDDLE SCHOOL

(5×^2-4x-1)-(4x^2-4) how do i simplify this

Answers

Answer 1
Answer: simplify whatever is in the parenthesis:

(5×^2-4x-1) and (4x^2-4) 

after that subtract the numbers you got from both parenthesis after simplifying

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What is 0 divided by 0

Answers

The answer you are looking for does not exsist, for there is no equation 0%0, thus your answer is itself,zero,
sincerily,lazylegion! hope this helped.
0÷0 = 0÷0 
it cant be solved

An average person's heart beats about 103,680 times a day. write and solve an equation to find about how many times the average person's heart beats in one minute.I really need help on this math

Answers

24 hours in 1 day
60 minutes in one hour

60x24=1,440 minutes in a day

103,680/1,440 = 72 beats per minute
60x24=1,440

103,680/1,440=72 beats per minute


an average human heart beats 72 to 80 beats per minute 

What is 18/42 in it's simplest form?

Answers

(18)/(42)=(3\cdot6)/(7\cdot6)=(3)/(7)
Well, you can divide both numbers by 6.
18/6=3
42/6=7.
You have the simplest form in the simplest way!!
Your answer is 3/7.
Hope this helped!! 

PLEASE ANSWER! DOING ANOTHER QUICK TEST! REAL QUICK! MUST BE CORRECT! POINTS WILL BE GIVEN!

Answers

-6 * (-20)

  -6
-20
-------
120 (Two negatives = a positive!)

Ramona creates 16 paintings each month. About how many paintings will she create in 3 years?

Answers

she will have 576 paintings in 3 years
U know that there is 12 months in a year and she creates 16 each month so 12x16=192 and then u want to multiply 192 by 3 because 192 is the amount she makes in a year

5–2•3+6(9+1)=? Geometry Math.​

Answers

Answer:

59

Step-by-step explanation:

5 - 2 • 3 + 6(9 + 1) =

Use the correct order of operations.

Do the addition in the parentheses first.

= 5 - 2 • 3 + 6(10)

Now do the multiplications in the order they appear from left to right.

= 5 - 6 + 60

Now do additions and subtractions in the order they appear from left to right.

= -1 + 60

= 59
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