2x^2+7x-4
you need distribute all the numbers in parenthesis.
Answer: There are 152 adults and 87 children.
Step-by-step explanation:
Let x= Number of adults
y= Number of children
As per given, we have
x+y = 239 (i)
15x+5.50y= 2758.50 (ii)
Multiply 5.50 on both sides of (i) , we get
5.50x+5.50y=1314.5 (iii)
Subtract (iii) from (ii), we get
9.5x = 1444
⇒ x = 152
Put value of x in (i) , we get
152+y=239
⇒ y= 239-152
⇒ y= 87
Hence, there are 152 adults and 87 children.
Answer:
Step-by-step explanation:
Information that we know about the square:
side length: 
which can asol be expressed as: 
we can use this information to calculate the area by the formula for the area of a square:
we subtitute the side length:
the square root and the squared exponent cancel each other out (because they are opposite operations) and since this is an area it must have squared units:
The exact value of the area of the square is 
Answer:
A. 12.8%
Step-by-step explanation:
Because you need to minus the actual number from the estimate number then you divide the answer you get from the actual number then you move down two decimal spaces. Then you will get 12.8%.
Answer:
i dont know this man if i did would help
Step-by-step explanation:
