2 years ago

Is the expression 3x+2x−4 in simplest form

Mathematics

2 answers:

stich3 [128]2 years ago

7 0

No, because you would have to simplify like terms. Which the simplest form would be
5x-4

klio [65]2 years ago

6 0

No, because you can add the 3x and the 2x. They can be added together because they have the same unit. It's like saying I have 3apples plus 2 apples, but I can actually just say I have 5 apples.

3x+2x-4 in simplest form is 5x-4.

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Simplify the expression 6x + 9 + 3x -x by combining like terms?

Arte-miy333 [17]

Answer:

Group the like terms

6x + 3x - x + 9

Work out the x values together and then add the 9

9x - x + 9

8x + 9

your final answer should be about 8x + 9 as it cannot be simplified anymore

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3 years ago

A player shoots a basketball from a height of 6 feet. The equation, h = -16t^2 + 25t + 6, gives the height, h , of the basketbal

noname [10]

Answer:

$\boxed {\boxed {\sf 7.5 \ feet}}$

Step-by-step explanation:

We are given this function for the height (h) after t seconds:

$h=-16t^2+25t+6$

Seconds is t and we want to find the height after 1.5 seconds. Plug 1.5 in for t.

$h= -16(1.5)^2+25(1.5)+6$

Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction.

Solve the exponent first.

(1.5)²= 1.5*1.5=2.25

$h= -16(2.25)+25(1.5)+6$

Multiply.

$h= -36+25(1.5)+6$

$h= -36+37.5+6$

Add.

$h=1.5+6=7.5$

This is already rounded to the nearest tenth, so it is the answer.

After 1.5 seconds, the basketball is at a height of 7.5 feet.

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2 years ago