Answer: Assuming the a2 is a with an exponent of 2 and a3 is a with an exponent of 3, the answer is 2a^6-2a^5
Step-by-step explanation: the number after the ^ means to the power of
Answer:
x = -2
y = 6
Step-by-step explanation:
i multiplied the 1st equation by 3 and the 2nd by 5 to get the y-terms to zero out
12x + 15y = 66
+ <u>35x - 15y = -160</u>
47x = -94
x = -94/47
x = -2
substitute -2 for 'x' to solve for 'y':
4(-2) + 5y = 22
-8 + 5y = 22
5y = 30
y = 6
Answer:

Step-by-step explanation:
Rewrite the system of equations as:

Subtract the second equation from the first to isolate
:

Plug in
into any of the equations above and solve for
:

Verify that the solution pair
works 
Therefore, the solution to this system of equations is:

Cube both sides
remember PEMDAS
parentheses
Exponents
Multiplication
Division
Addition
Subtraction
Answer:
An ostrich egg is 4 pounds, therefore, an ostrich egg is not greater than 5 pounds.
Step-by-step explanation:
Convert the ounces to pound.
1 pound = 16 ounces
Next, divide.
64 ÷ 16 = 4.
4 < 5
So, an ostrich isn't greater than 5 pounds
Have a wonderful day!