Answer:
4 nickels to 1 dime
Step-by-step explanation:
the steps are in the pic above I gotta get this to 20 characters bye!
4/5 to get a rational number bc it would be 5. hope it helps.
Answer:
Prime
Step-by-step explanation:
x² + 20x − 36
You must find a pair of numbers that multiply to give -36 and add to give +20.
The likely candidates are 2 and 18, and they must have opposite signs to give a negative product.
+2 × (-18) = -36; +2 + (-18) = -16
-2 × 18 = -36; -2 + 8 = +16
Neither combination gives +20 as the sum.
The expression can't be factored with rational numbers.
The expression is prime.
What do you need help with. I am really good in math