Answer:
127.3 ft
Step-by-step explanation:
Our triangle has legs 90, 90, x. This is a special triangle when the hypotenuse is just one of the legs times the , thus 90
. This is rounded to 127.3. Please mark as brainlienst.
PLZ HELP IM IN 8TH GRADE
2 answers:
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Answer:
k = 9
Step-by-step explanation:
Consider the pattern on the right side , that is
= k(k + 2) + 1 = k² + 2k + 1
Equating
k² + 2k + 1 = 100 ( subtract 100 from both sides )
k² + 2k - 99 = 0 ← in standard form
(k + 11)(k - 9) = 0 ← in factored form
Equate each factor to zero and solve for k
k + 11 = 0 ⇒ k = - 11
k - 9 = 0 ⇒ k = 9
But k > 0 , then k = 9