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KIM [24]
2 years ago
12

FOR AN EXAM DUE TODAY!!! Simplify the polynomial. 3x – 2x2 + 4 – x2 + x + -

Mathematics
1 answer:
Mashutka [201]2 years ago
7 0

Answer:

{ \tt{ \blue{  - {3x}^{2} + 4x + 4 }}}

Step-by-step explanation:

{ \tt{3x -  {2x}^{2}  + 4 -  {x}^{2} + x }} \\

» Collect second degree terms (x² coefficients) together and first degree terms (x coefficients) and constants

= { \tt{( - 2 - 1) {x}^{2} + (3 + 1)x + 4 }} \\  = { \boxed{ \tt{ \:  -  {3x}^{2}  + 4x + 4}}}

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Mr. Yasin paid a total of 9.43 to buy three boxes of cereal. If he paid 3.99 for the 1st box and 2.97 for the 2nd box how much d
Vikentia [17]

Answer:

$2.47

Step-by-step explanation:

Pretend if Mr. Yasin didn't pay for the 3rd box, find out how much he had left after paying for the first 2 boxes.

9.43 - 3.99 - 2.97 = 2.47

8 0
2 years ago
I don't get this problem from maths.
NeTakaya

Answer:

100/3 or 33.33

Step-by-step explanation: If the perimeter of the whole figure is 220, we can use that number to solve the equations on the trapezoid.

2(2x-3) + 2(4) + 2(4x+1)

4x - 6 + 8 + 8x + 2

12x + 2

Now we have to set the equation equal to the perimeter to find the value of x

12x + 2 = 220

12x = 218

x = 109/6

Since we are only finding the length of PS, we will plug x into its equation (2x - 3).

2(109/6) - 3

109/3 - 3

109/3 - 9/3

100/3



4 0
3 years ago
Read 2 more answers
16 divided by 4 * 2<br><br> (PLZ EXPLAIN STEPS)
GalinKa [24]

16/4*2

Note that you follow the Right to left rule.

Divide: 16/4 = 4

Multiply 4 x 2 = 8

8 is your answer

hope this helps

Note: You do not follow PEMDAS, because there is no parenthesis, and there is only multiply and divide.


4 0
3 years ago
Identify the number that does not belong with the other three. explain your reasoning?
ch4aika [34]
<h2>Good evening </h2>

<em><u>Answer</u></em>:

<h2>The strange number here is √48</h2>

<em><u>Step-by-step explanation:</u></em>

√(48)=6,928203230276...

so, √(48) is an irrational number and all the 3 others are rationals.

:)

8 0
2 years ago
Find a formula for an for the arithmetic sequence.
Otrada [13]

Answer:

a_{n} = a + 2(n-1)

Step-by-step explanation:

a_{5}= a_{1} + 4d  \\4 = -4 +4d\\8= 4d\\d= 2\\\\Therefore    \\a_{n} = a_{1} + 2(n-1)

4 0
3 years ago
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