Answer:
√(23)
Step-by-step explanation:
The Pythagorean Theorem is a² + b² = c²
so...
a = 7
b = 3
7² + 3² = c²
14 + 9 = c²
√(23) = c
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Answer:
kora is 13
Step-by-step explanation:
venla is 5 years older than kora
18-5=13
Answer:
Part 1) 
Part 2) 
Step-by-step explanation:
The picture of the question in the attached figure
Part 1
Find the length side AB
we know that
----> by SOH (opposite side divided by the hypotenuse)
substitute the given values

solve for AB

Part 2
Find the length side AC
we know that
----> by TOA (opposite side divided by the adjacent side)
substitute the given values

solve for AC

notice the first term is -10, and the common difference is 3, so we add 3 to get the next term.

check the picture below.
The answer is 3.... 4*3=12 6*3 =18