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05/12/23

An airplane is flying on a compass heading (bearing) of 330° at 320 mph. A wind is blowing with the bearing 300° at 40 mph.

An airplane is flying on a compass heading (bearing) of 330° at 320 mph. A wind is blowing with the bearing 300° at 40 mph. (a) Find the component form of the velocity of the airplane.... more

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Precalculus Math Algebra 1 Algebra 2

05/12/23

Find a unit vector in the direction of the given vector. v=<5,10> (Type your answer in the form ai + bj. Simplify your answer. Type an exact answer, using radicals as needed.)

Find a unit vector in the direction of the given vector.v=<5,10>(Type your answer in the form ai + bj. Simplify your answer. Type an exact answer, using radicals as needed.)

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Precalculus Math Algebra 1 Algebra 2

05/12/23

Prove the identity. cos3x=4cos3x−3cosx

Prove the identity.cos3x=4cos3x−3cosx

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Precalculus Math Algebra 1 Algebra 2

05/12/23

Find the vector projection of u onto v. Then write u as the sum of two orthogonal vectors, one of which is projvu. u=〈−2,3〉, v=〈5,6〉

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Precalculus Math Algebra 1 Algebra 2

05/12/23

Find an equation in standard form for the hyperbola that satisfies the given conditions. Foci (−5,5) and (3,5), transverse axis endpoints (−4,5) and (2,5).

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Precalculus Math Algebra 1 Algebra 2

05/12/23

Find an equation in standard form for the ellipse that satisfies the given conditions. Minor axis endpoints (0,±5), major axis length 14

Find an equation in standard form for the ellipse that satisfies the given conditions.Minor axis endpoints (0,±5), major axis length 14

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Precalculus Math Algebra 1 Algebra 2

05/12/23

Prove that the graph of the equation is a parabola, and find its vertex, focus, and directrix. x^2+2x−y+2=0

Prove that the graph of the equation is a parabola, and find its vertex, focus, and directrix.x^2+2x−y+2=0

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Precalculus Math Calculus Sat Math

05/12/23

Which of the following is guaranteed by the Intermediate Value Theorem, if f is a continuous function on the closed interval [−13, −5] where f(−13) = 4 and f(−5) = 11?

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Precalculus Math Calculus Sat Math

05/12/23

How to tell which limit is an indeterminate form?

a)b)c)

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Precalculus Math Calculus Sat Math

05/12/23

How to Evaluate the limit as x approaches 0 of ln of the quantity 1 minus x squared close quantity over x.

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Precalculus

05/12/23

precalc question

The MMS magnitude M of an earthquake with energy S is given by the formula M=23log(SS0).Earthquake A had an MMS magnitude of 4.5. The energy released in Earthquake B was 1280 times the energy in... more

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Precalculus Math Calculus Sat Math

05/12/23

Let g be a function of x such that g(4) = −1 and g ′(4) = 2. Find the linearization of g(4).

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Precalculus Math Calculus Sat Math

05/12/23

Plz explain, thx

The radius r, height h, and volume V of a cone are related by the equation How is related to and if neither r nor h is constant?

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Precalculus

05/11/23

precalc question

A population of fruit flies grows exponentially. At the beginning of the experiment, the population size is 400. After 21 hours, the population size is 546. a) Find the doubling time for this... more

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Precalculus

05/09/23

Precalculus question

At the beginning of an experiment, a scientist has 272 grams of radioactive goo. After 225 minutes, her sample has decayed to 17 grams. What is the half-life of the goo in minutes? Find a... more

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Precalculus Calculus

05/09/23

Find the Maximized Rent in $

The manager of a 100-unit apartment complex knows from experience that all units will be occupied if the rent is $500 per month. A market survey suggests that, on average, one additional unit will... more

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Precalculus Math Science Algebra 1

05/09/23

Box-and-whiskers, algebra

Construct a box-and-whisker plot of the following numbers:70, 55, 43, 66, 32, 35, 48, 68, 69, 39, 31, 52

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Precalculus Math Science Algebra 1

05/09/23

Word problem, algebra

Blues vary inversely as purples cubed. When there are 250 blues, there are 2 purples. How many blues are present when there are 5 purples?

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Precalculus Math Science Algebra 1

05/09/23

Distance, algebra

The distance a body falls varies directly as the square of the time that it falls. If it falls 972 meters in 18 seconds, how fa will it fall in 2 seconds?

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Precalculus Math Science Algebra 1

05/09/23

Intrest, money, algebra

Gretchen deposited $7000 in an account that earns 2% interest compounded annually..(a) Write an equation that expresses the amount of money in the account as a function of n, where n equals the... more

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Precalculus

05/09/23

Precalculus question

Find the time required for an investment of 5000 dollars to grow to 6500 dollars at an interest rate of 7.5 percent per year, compounded quarterly. Your answer is t= years.

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Precalculus

05/09/23

pre calc question

The doubling period of a bacterial population is 10 minutes. At time t=110 minutes, the bacterial population was 50000.What was the initial population at time t=0? Find the size of the... more

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Precalculus

05/09/23

Precalculus question

At the beginning of an experiment, a scientist has 236 grams of radioactive goo. After 105 minutes, her sample has decayed to 7.375 grams. What is the half-life of the goo in minutes? Find a... more

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Precalculus Science Algebra 1 Algebra 2

05/08/23

Word problem, algebra

Pressure varies inversely as volume. When the pressure is 16 pascals, the volume is 84 liters. What would the volume be if the pressure is reduced to 12 pascals?

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Precalculus

05/08/23

Precalculus question

A can of soda at 39 °F is removed from a refrigerator and placed in a room where the air temperature is 68 °F. After 13 minutes, the temperature of the can has risen to 49 °F. How many minutes... more

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An airplane is flying on a compass heading​ (bearing) of 330° at 320 mph. A wind is blowing with the bearing 300° at 40 mph.

Find a unit vector in the direction of the given vector. v=<5,10> ​(Type your answer in the form ai​ + bj. Simplify your answer. Type an exact​ answer, using radicals as​ needed.)

Prove the identity. cos3x=4cos3x−3cosx

Find the vector projection of u onto v. Then write u as the sum of two orthogonal​ vectors, one of which is projvu. u=〈−2​,3〉​, v=〈5​,6〉

Find an equation in standard form for the hyperbola that satisfies the given conditions. Foci ​(−5​,5​) and ​(3​,5​), transverse axis endpoints ​(−4​,5​) and ​(2​,5​).

Find an equation in standard form for the ellipse that satisfies the given conditions. Minor axis endpoints ​(0,±5​), major axis length 14

Prove that the graph of the equation is a​ parabola, and find its​ vertex, focus, and directrix. x^2+2x−y+2=0

Which of the following is guaranteed by the Intermediate Value Theorem, if f is a continuous function on the closed interval [−13, −5] where f(−13) = 4 and f(−5) = 11?

How to tell which limit is an indeterminate form?

How to Evaluate the limit as x approaches 0 of ln of the quantity 1 minus x squared close quantity over x.

precalc question

Let g be a function of x such that g(4) = −1 and g ′(4) = 2. Find the linearization of g(4).

Plz explain, thx

precalc question

Precalculus question

Find the Maximized Rent in $

Box-and-whiskers, algebra

Word problem, algebra

Distance, algebra

Intrest, money, algebra

Precalculus question

pre calc question

Precalculus question

Word problem, algebra

Precalculus question

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An airplane is flying on a compass heading (bearing) of 330° at 320 mph. A wind is blowing with the bearing 300° at 40 mph.

Find a unit vector in the direction of the given vector. v=<5,10> (Type your answer in the form ai + bj. Simplify your answer. Type an exact answer, using radicals as needed.)

Find the vector projection of u onto v. Then write u as the sum of two orthogonal vectors, one of which is projvu. u=〈−2,3〉, v=〈5,6〉

Find an equation in standard form for the hyperbola that satisfies the given conditions. Foci (−5,5) and (3,5), transverse axis endpoints (−4,5) and (2,5).

Find an equation in standard form for the ellipse that satisfies the given conditions. Minor axis endpoints (0,±5), major axis length 14

Prove that the graph of the equation is a parabola, and find its vertex, focus, and directrix. x^2+2x−y+2=0