Answer:
8x+6y=48
x+y=7
multiply bottom equation by 6:
8x+6y=48
6x+6y=42
subtract equations:
2x=6
divide 6 by 2:
x=3
therefore:
y=4
The answer is 29 and 31 because by the definition of a prime number it is a natural number that is greater than 1 and has no positive divisors other than 1 and itself.
Answer:
it doesn't represent anything
Step-by-step explanation:
here is an example, Consider that your grandmother is a firm believer in saving money and refuses to give gift cards or cash at holidays. Instead, she gives all of the grandchildren $500 invested in five-year CDs (Certificates of Deposit) with compound interest figured twice a year and a 2% interest rate. Set aside the delayed gratification for a moment -- The question is, how much money will the CD be worth in 5 years? That is where compound interest kicks in.
Filling in the compound interest formula of A=P(1+r/n)^nt, your holiday gift looks like this: A = 500(1+.022)^25. Following the order of operations, we calculate the amount in the parenthesis first to get A = 500(1.01)^25. From there, we input the exponents to get A = 500(1.10). Now in our final calculation, the final value is A = $550. At the end of 5 years, your CD will be worth $550.
X⁴ - 12x² + 36
This is the equivalent expression.
(x²-6)²
1) (x²-6)*(x²-6)
2) x²(x²) + x²(-6) -6(x²) -6(-6) (distributive multiplication)
3) x⁴ - 6x² - 6x² + 36 = x⁴ - 12x² + 36 (group together figures that are the same value)
