02/13/21

How fast (in knots) is the distance between the ships changing at 7 PM?
At noon, ship A is 40 nautical miles due west of ship B. Ship A is sailing west at 20 knots and ship B is sailing north at 16 knots. How fast (in knots) is the distance between the ships changing... more
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02/12/21

Find the interval(s) where the function is increasing and the interval(s) where it is decreasing. (Enter your answers using interval notation.) f(x)=7x+5
Find the interval(s) where the function is increasing and the interval(s) where it is decreasing. (Enter your answers using interval notation. If an answer cannot be expressed as an interval, enter... more
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02/10/21

Right Triangle Trig Pt. 2
A survey team is trying to estimate the height of a mountain above a level plain. From one point on the plain, they observe that the angle of elevation to the top of the mountain is 25∘. From a... more
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02/10/21

A manicure and a back rub together costs $18. A back rub and a facial together costs $19. A manicure and a facial together costs $21. What is the cost of the back rub?
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02/10/21

The rate at which a garden uses water is measured in thousands of gallons. If the usage rate is given by f(x), where x is the number of hours past midnight, which of the following gives the daily...

The rate at which a garden uses water is measured in thousands of gallons. If the usage rate is given by f(x), where x is the number of hours past midnight, which of the following gives the daily... more
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02/10/21

Determine the volume of the doorknob created.
On a lathe, a woodworker is creating doorknobs.Of the doorknob, find the volume. Which methods is it possible to use? Are there any restrictions on when you can use them? The curve he will rotate... more
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02/10/21

f(x) = −8x + 7; a = −2
Compute f ′(a) algebraically for the given value of a.
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02/08/21

Ethan needs to produce 2000 milliliters of 65% alcohol solution At his disposal he has 80% solution and 60% alcohol solution How much of each does he need in order to produce his desired solution
He needs ___ milliliters of 80% solution He needs ___ milliliters of 60% solution
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02/08/21

Please answer algebra word problem

The senior classes at High School A and High School B planned separate trips to the local amusement park. The senior class at High School A rented and filled 12 vans and 11 buses with 429 students.... more
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02/08/21

Word Problem. l
Monica deposits $760 into a savings account that pays 6.2% per year. If the account compounds quarterly, find the time it takes to triple her investment.
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02/08/21

trigonometry right triangle
Note: Triangle may not be drawn to scale.Suppose a = 9 and b = 10.Find an exact value for each of the following trig functions.sin(A) =    cos(A) =    tan(A) =    sec(A) =    csc(A) =    cot(A) =  
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02/08/21

trigonometry homework help
A truck leaves its present location and travels along a bearing of N42°W for 40 miles.How far North and West of its original position is it? Round your answers to two decimal places.North; _______... more
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02/07/21

Find the exact values of the six trigonometric functions of 𝜃 if 𝜃 is in standard position and P is on the terminal side.
Find the exact values of the six trigonometric functions of 𝜃 if 𝜃 is in standard position and P is on the terminal side.P(−3, −5)
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02/06/21

What does this mean?
Write an equation for a function that has a graph with the given characteristics.The shape of y=5√x shifted left 6 units and shifted up 3 units.
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02/06/21

Express as a trigonometric function of one angle. cos 16° cos 48° − sin 16° sin 48°
Express as a trigonometric function of one angle.cos 16° cos 48° − sin 16° sin 48°
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02/06/21

Express as a sum or difference. (Use the Product-to-Sum formulas.)
Express as a sum or difference. (Use the Product-to-Sum formulas.)sin(-2x) cos 9x
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02/06/21

Use fundamental identities to find the values of the trigonometric functions for the given conditions.
sin𝜃 = -4/5 and sec 𝜃 >0sin𝜃 =cos𝜃 =tan𝜃 =csc𝜃 =sec𝜃 =cot𝜃 =
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02/06/21

A cylindrical storage tank has a depth of 8 ft and a radius measuring 2 ft.

A cylindrical storage tank has a depth of 8 ft and a radius measuring 2 ft. The tank needs to be painted. If 1 pint of paint covers 40 ft2 and you can only purchase full pints of paint, how many... more
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02/06/21

Verify the identity algebraically. Use a graphing utility to check your result graphically.
5 sin(𝜃) csc(𝜃) − 5 sin2(𝜃) = 5 cos2(𝜃)Use the Reciprocal and Pythagorean Identities, and then simplify. (Simplify your answers completely.)5 sin(𝜃) csc(𝜃) − 5 sin2(𝜃) = __________ - 5 sin2(𝜃)=... more
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02/06/21

Find all solutions of the eq in the interval [0, 2𝜋) algebraically. Use the table feature of a graphing utility to check your answers numerically. (Enter your answers as a comma-separated list.)
sin2(x) + cos(x) + 1 = 0x =
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02/04/21

If cot ( x ) = 3 10 (in Quadrant-I), find sin ( 2 x )
any help will be great :)
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02/04/21

If cos α = 0.945 and cos β = 0.817 with both angles’ terminal rays in Quadrant-I, find the values of (a) cos ( β − α ) = (b) sin ( β − α ) =
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02/04/21

Find the marginal cost, marginal revenue, and marginal profit functions.
C(x) = 4x2 R(x) = x3 + 5x + 15Marginal Cost= Marginal Revenue= Marginal Profit= Find all values of x for which the marginal profit is zerox=__
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02/04/21

Math problem!!!
Item 7Solve the system of linear equations by elimination.4x−3y=85x−2y=−11
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02/04/21

A market is supplied n thousands of crates of watermelons daily when it is sold at d dollars per crate and the supply equation is pn - 3p - 100n - 100 = 0.
If the daily supply is decreasing by 250 crates per day, at what rate is the price changing when the daily supply is 5000 crates?
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