2 years ago

Can you please help me with my question

Mathematics

1 answer:

Reika [66]2 years ago

4 0

The answer:
First: sec(-pi) is sec(pi)
And sec(pi) is -1

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Answer:

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3 years ago

Find the measure of ∠C if ∠A = 3 2 x + 20 ∠B = 7 2 x + 20 ∠C = 5 2 x + 40 ∠D = 3 2 x + 10 A) 65° B) 76° C) 95° D) 115°

Rudiy27

The sum of the angles of a quadrilateral is 360°.
$\left(\dfrac{3}{2}x+20\right)+\left(\dfrac{7}{2}x+20\right)+\left(\dfrac{5}{2}x+40\right)+\left(\dfrac{3}{2}x+10\right)=360\\\\9x+90=360\\\\x=\dfrac{270}{9}=30$

Given that x=30, the measure of ∠C is
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The appropriate choice is ...
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2 years ago

Solve the expression x^2-100=0

enot [183]

Answer:

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Step-by-step explanation:

Given

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x² = 100 ( take the square root of both sides )

x = ± $\sqrt{100}$ ← note plus or minus, hence

x = ± 10

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Can you please help me with my question​

Can you please help me with my question