The unit rate of the parachutist change in height is 11 feet per second.
• In Mathematics, Unitary method is a technique for solving a question by first finding the value of a single unit and then finding the required value by multiplying the number by value of single unit .
• We use unitary method to find the ratio of one thing with respect to other thing.
• There are two types of unitary method one is Direct Variation and the other is Inverse variation.
We have the rate of descend as 44 feet in 4 sec.
So, in 1 second it will be = 44 / 4 = 11 feet.
Which is the unit rate.
Therefore, the unit rate of descend for the parachutist is 11 feet per second.
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Since the quantity under a square root must be greater than or equal to zero, you would solve for x by subtracting two, to get that 1/3x must be greater than or equal to zero, then divide by 1/3 on both sides to get that x must be greater than or -6, so the last answer is correct
Answer: No solution
Explanation: It is completely parallel. If it intersects, it has 1 solution. If it is exactly the same, giving the appearance of one line, it has infinite. When it’s parallel, it has none.
<span> a + b = 7
10a + b + 9 = 10b + a
9a - 9b = -9
9a = 9b - 9
a = b - 1
Plugging back into the original equation:
(b - 1) + b = 7
2b - 1 = 7
2b = 8
b = 4
a = 3
34 </span>
