Answer:
1st answer
Step-by-step explanation:
From pythagorus theorem.
Since hypotenuse

Answer:
(c) 9
Step-by-step explanation:
You can't have a repeated x-value in a function.
8 is taken by (8, 7)
7 is taken by (7,-6)
-4 is taken by (-4, 5)
9 is the only number that is not taken by any other point yet.
Remember that for a relationship to be a function it can't have repeated x-values. However, it doesn't matter to have the same x and y values!
Hope this helped!
Probably 6
I may be wrong but try it
Answer: Choice D
b greater-than 3 and StartFraction 2 over 15 EndFraction
In other words,
b > 3 & 2/15
or

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Explanation:
Let's convert the mixed number 2 & 3/5 into an improper fraction.
We'll use the rule
a & b/c = (a*c + b)/c
In this case, a = 2, b = 3, c = 5
So,
a & b/c = (a*c + b)/c
2 & 3/5 = (2*5 + 3)/5
2 & 3/5 = (10 + 3)/5
2 & 3/5 = 13/5
The inequality
is the same as 
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Let's multiply both sides by 15 to clear out the fractions

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Now isolate the variable b

Side note: Another way to go from 47/15 to 3 & 2/15 is to notice how
47/15 = 3 remainder 2
The 3 is the whole part while 2 helps form the fractional part. The denominator stays at 15 the whole time.
Simplify 3/2t to 3t/2
16 - 2t = 3t/2 + 9
Multiply both sides by 2
32 - 4t = 3t + 18
Add 4t to both sideds
32 = 3t + 18 + 4t
Simplify 3t + 18 + 4t to 7t + 18
32 = 7t + 18
Subtract 18 from both sides
32 - 18 = 7t
Simplify 32 - 18 to 14
14 = 7t
Divide both sides by 7
14/7 = t
Simplify 14/7 to 2
2 = t
Switch sides
<u>t = 2</u>