Establish the identity.sec 4 x - tan 4 x = sec 2 x + tan 2 x
What will be an ideal response?
sec 4 x - tan 4 x = (sec 2 x + tan 2 x)(sec 2 x - tan 2 x) = (sec 2 x + tan 2 x)(1) = sec 2 x + tan 2 x.
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The two triangles below are similar. Find the unknown side lengths.
A. x = 18 B. x = 14 C. x = 12 D. x = 6
Solve the given differential equation.D2y + 6 Dy + 9y = 0
A. y = c1e-3x + c2 B. y = (c1 + c2x)e3x C. y = (c1 + c2x)e-3x D. y = ce-3x
Solve the application and answer with a complete sentence. Round to the nearest tenth of a percent if necessary.On a biology test, a student got 25 questions correct but did not pass. On a second attempt, the student got 36 questions correct. What was the percent of increase?
A. There was a 44% increase. B. There was a 56% increase. C. There was a 11% increase. D. There was a 30.6% increase.
Provide an appropriate response.The federal government sells bonds that are called treasury bonds.
A. True B. False