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Minchanka [31]
3 years ago
9

Find the legth of the missing side of the triangle

Mathematics
1 answer:
IrinaK [193]3 years ago
6 0

Answer:

What are the sides of the triangle you know? If its a right triangle you use the pythagorean theorem which is a^2+b^2=c^2 with c being the hypotensue.

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Factorise x(squared) + 7x - 30
Sergeu [11.5K]
X^2+7x-30
what we do is we find what 2 number multiply to get -30 and add to get 7
factor 30
30=2 times 3 times 5
we know that is has to be negative eventually so one is negative and one is positivie so we do2 factors and add
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10 and -3
add
10-3=7
checks
10 times -3=-30

so we put those in
(x-3)(x+10)
factored
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Serga [27]
Is there more to this question?
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3 years ago
What is the area of the shaded region? Explain please for both #9 and #12
Alja [10]
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5 0
3 years ago
You are hiking in Marin, and stop to stand on the edge of a cliff overlooking the Pacific ocean. You see a sailboat down in the
Bas_tet [7]

Answer:

Step-by-step explanation:

on the edge of a cliff overlooking the Pacific ocean. You see a sailboat down in the water below you. The angle of depression to the sailboat is 28◦ . A quick tells you that the cliff you’re standing on is 150ft. How far away from the boat are you, in feet, rounded to one decimal place?(30pts)

We solve using the Trigonometric function of TANGENT

tan 28 = 150/x

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