In the triangle below, the value of a is 12.6. True False
1 answer:
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Answer:
√7
Step-by-step explanation:
Let :
AC = x
BD = y ; AD = 3 - y
Since, AD = BC
Then BC = 3 - y
Taking △BDC a d applying Pythagoras
Hypotenus² = opposite² + adjacent²
BC² = CD² + BD²
(3 - y)² = (√3)² + y²
9 - 6y + y² = 3 + y²
-6y + y² - y² = 3 - 9
-6y = - 6
y = 1
AD = 3 - y ; AD = 3 - 1 = 2
Taking △ADC
AC² = CD² + AD²
AC² = (√3)² + 2²
AC² = 3 + 4
AC² = 7
AC = √7
Answer:
A is the answer. ( -5 , 3 ) ∪ ( 3 , ∞ )
Step-by-step explanation:
given f(x) = , g(x) = √x+5
asked to find fg(x)
f(√x+5)
√+5