Step-by-step explanation:
Area of the circle=
3.14•(17)²/4
=226.865in²
Area of the rectangle=length•width
=(8•15)in²
=120in²
Area of the shaded portion=Area of the circle-Area of a rectangle
=(226.865-120)in²
=106.865in²
=106.87in² to the nearest hundredth
48:32 or 48/32, depending on how your teacher wants you to write it.
1.2 for the first question
30 for the second question
<span>4a+7b+3a-2b+2a
Substitute all of the variables for the numbers given
4(-5)+7(3)+3(-5)-2(3)+2(-5)
Multiply all of the variables by their coefficient
-20+21-15-6-10
Combine like terms
Final Answer: -30
</span>
÷
The first thing you must do it to solve the fractions inside the parentheses first
which is
because you must get a common denominator in order to solve. The common denominator is 6. So you must multiply in order to get 6.
Then you do the other fraction:
which is
because 15 is the common denominator and you must multiply the denominator to get 15, thus, you must multiply by the same amount for the numerator. So now it is
÷
but when dividing, you just need to flip-flop the second fraction and then multiply across. Now it is
But to simplify, you find a common factor which is 3.
45÷3=15 and 6÷3=2 which is now
You answer is C)
