Answer: -2
Step-by-step explanation:
3x+2y=16
x+y=4 multiply by -2
-2x-2y=-8
3x+2y=16 ------a
-2x-2y=-8 -------b
Add equation a and b
(3x+-2x)+(2y+-2y) = 16+(-8)
x+0=8 (y has been eliminated)
(4^4 * 4^3) / 4^5 =
when multiplying exponents with the same base, add the exponents
(4^4 * 4^3 = 4^(4 + 3) = 4^7
now we have 4^7 / 4^5
when dividing exponents with the same base, u subtract the exponents.
4^7 / 4^5 = 4^(7-5) = 4^2 <===
Answer:
1) 5/2
2) c = - 1 /2
Step-by-step explanation:
1) 3^b = 9 root 3
Write in exponential form
write the expression in exponential form with the base of 3
3^b = 3 ^ 5/2
Since the bases are the same , set the exponents eqaul
b = 5/2
Therefore, your answer is 5/2
2) 3 ^ c = 1/√3
Write in exponential form
Write the expression in exponential form with the base of 3
3^c = 3 ^ -1/2
Since the bases are the same , set the exponents equal
c = - 1/2
Therefore, the answer is c = - 1/2
Answer:
13.392
Step-by-step explanation:
(3.1×1000000)(.00000432)
