14
Step-by-step explanation:
Her brother is 9 and she is 14.
say she is 14, 14+2=16 a perfect square.
14-10=4 which is the square root of 16.
So she is 14 and her brother is 9.
(He is a perfect square too, by the way.)
The mean would be -6.2
hope this helps :D
Solve for :
Now if , we have and
On the other hand, if , then and
Answer:
1 is multiplication
2 is division
3 is parentheses
4 is exponents
5 is parentheses
6 is exponents
7 is G.
8 is F.
9 is H.
10 is A.
11 is C.
12 is E.
13 is D.
14 is B.
Step-by-step explanation:
PEMDAS
parentheses
exponents
multiplication
division
addition
subtraction
do it in that order. but multiplication and division are on the same level so whichever comes firsts gets solved first and addition and subtraction are on the same level so whichever that come first gets solved first
The ans is choice D. since there nothing under 5x, imagine there is a 1 under. After that, you can simply cross multiply, so it would be 1(6+8x)= 2(5x). 6+8x= 10x now combine like terms so subtract 8x from both sides and divide 6 by 2 and you will get 3