Answer:
C
Step-by-step explanation:
We have the expression:

Rewriting this yields:

Therefore, our answer is C.
Answer:
B
Step-by-step explanation:
use quadratic formula: (-b ±√b²-4ac) ÷ 2a
a = 10, b = -9, c = -6
Answer:
21
Step-by-step explanation:
y= 2/3 x
so, x= 3/2y
when y= 14
x= 3/2×14 = 21
Answer:87
Step-by-step explanation:
Answer:
2 * 10 ^-4
Step-by-step explanation:
We need the first number to be between 1 and less than 10
.0002
2 * 10 ^ exponent
We move the decimal 4 places to the right. Since we move it to the right the exponent is negative and is the number of places we moved the decimal
2 * 10 ^-4