Edward C.

Precalculus Trigonometry

05/21/20

If tan α = − 21/20 and cot β = 12 /5 for a second-quadrant angle α and a third-quadrant angle β, find the following

sin(α + β) cos(α + β)tan(α + β)sin(α − β)cos(α − β)tan(α − β)

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Calculus Precalculus

05/20/20

Write the first five terms of the sequence defined recursively.

Use the pattern to write the nth term of the the sequence as a function of n. (Assume that n begins with one.)a1=4, ak+1 = -akoptions a. an = 4nb. an = 4(-1)nc. an = (-4)nd. an = (-4)n-1e. ... more

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Trigonometry

05/20/20

Round 3 radians to the nearest degree.

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Math Precalculus Pre Calculus

05/18/20

Suppose $22,800 is invested in a daily compounded account at 6.97%. Approximately how long will it take for the balance to reach $51,300 ?

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Calculus

05/16/20

Please help!! Very hard calc question.

Let φ: [0,π] → ℝ; x ↦ φ(x) = x –√(2)sin(x). Find the global extreme values of φ on [0,π].(The only thing under the sqr rt is 2)

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Precalculus

05/15/20

Select all that apply

(A). Which of the following functions have 3 in their domain? (Select all that apply)h(x)= square root of x-6f(x)= x2-3xg(x)= x-3/x(B). For the functions from part (A) that do have 3 in their... more

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Geometry

05/15/20

Find the value of X for the Parallelogram below:

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Calculus

05/14/20

the volume V of a sphere of radius r is given by V=4/3πr^3. if a spherical balloon is being inflated at the rate of 100π in^3/min, how fast is its radius increasing at the instant its diameter... more

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Calculus Precalculus

05/14/20

Find each indefinite integral and check the result by differentiating.

1) ∫(3x+5)2(3)dx2) ∫(x2-1)5(2x)dxthank you in advance

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Answers •2

Algebra 1 Algebra 2 Precalculus

05/14/20

Math Question. Urgent!! #40

The boys have a small game going in the back room. Mr. X decides to pull out and finds he has $194. If he has four times as many $1 bills as $5 bills, one-fifth as many $2 as $5 bills, and the same... more

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Algebra 1

05/13/20

One number is 6 more than another. Their product is 520. Find the numbers.

I just need to know if my answer is right could anyone help please .

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Trigonometry

05/13/20

Prove the identity

Prove the identitysin(x + π/2 ) = cos xshow works

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Calculus

05/12/20

How do I solve this?

a function f has the first derivative f'(x)=(x+2)x^2(x-1)^3(x-4)^4on which interval does the function increase?for which values of x does the function have a local max and for which a local min?

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Algebra 2

05/12/20

Write an equation of the parabola that passes through the point (62,−490) and has x-intercepts −8 and 72. Then find the average rate of change from x=−8 to x=2.

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Precalculus Sat Math

05/12/20

Find an equation of the line that satisfies the given conditions. Through (−1, −3); perpendicular to the line 2x + 7y + 8 = 0

Find an equation of the line that satisfies the given conditions.Through (−1, −3); perpendicular to the line 2x + 7y + 8 = 0

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Math Calculus Precalculus

05/08/20

Really really need assistance and help. Thank you in advance..

Use geometry to evaluate where .

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Math Calculus Precalculus

05/08/20

I really need help with math homework. Please and thank you!

If the graph of f '(x) is continuous and decreasing with an x-intercept at x = c, which of the following must be true? Options: 1) The graph of f has a relative maximum at x = c. 2) The graph... more

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Calculus

05/07/20