Parenthesis
Exponent
Multiplication
Division
Addition
Subtraction
(left to right)
4²-(3.1+6.4)+4.5
According to PEMDAS, we will do what is inside the parenthesis.
3.1+6.4 = 9.5
<em>4²-9.5+4.5</em>
Then we do figure out the exponent.
4² = (4)(4) = 16
<em>16-9.5+4.5</em>
Then we do subtraction then addition because PEMDAS also tells us we should do adding and subtracting from left to right. In this expression, subtracting is on the left side so we should do that first.
16-9.5 = 6.5
<em>6.5 + 4.5 = 11</em>
11 is your answer :)
Absolute value is just the distance the number is from 0 on a number line.
So -282 is 282 units away from zero.
Answer:
X^2+6x+5=0
Step-by-step explanation:
Ax+By+C=0 is what you follow for getting the general form. In this case, you go from descending order and x^2 is the highest point/degree. Therefore, x^2+6x+5=0. Hope this helps!
First, write an equation
x+7.9= 8.3
Now solve for x.
x=0.4
Answer:
8
Percentile
How I solved it:
60% of 20 is 12 and therefore 20 - 12 = 8 or 40%
