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Precalculus

12/02/23

Find a unit vector in the direction of the given vector. Verify that the result has a magnitude of 1.

w = 7j − 4i

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Precalculus

12/02/23

find the component form of v given its magnitude and the angle it makes with the positive x-axis.

magnitude: ||v|| = 7/8angle: 150 degrees

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Precalculus

12/02/23

Find the component form of v, where u = 4i − j and w = i + 2j.

v = u - 4w

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Precalculus

12/02/23

Find the component form of v, where u = 2i − j and w = i + 2j.

v = u + 2w

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Precalculus

12/02/23

The initial and terminal points of a vector are given. Write the vector as a linear combination of the standard unit vectors i and j.

initial point: (0,1)terminal point: (9-3,7)

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Precalculus

12/02/23

The initial and terminal points of a vector are given. Write the vector as a linear combination of the standard unit vectors i and j.

initial point: (-1,5)terminal point: (9,-9)

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Precalculus

12/01/23

Finding Limits from a graph

This question shows a graph y=b(x) an exponential graph that is does not have an reflection over x or y but has the point (3,0) and Horizontal Asymptote of -2. What is the limits as it x goes to... more

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Precalculus

12/01/23

precalculus 12 grade

Given tree function , which expression equal (k o b o z) (x)?b(x)=9x , k(x)=x^4-2, z(x)=I5xIanswers I 5((9x)^4-2)I (9I5xI^4)-2I5(9(x^4-2))I5(9x)^4I-2

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Precalculus

12/01/23

precalculus 12 grade

Given the three function, which expression equals (f o c o m)(x)?c(x)=9/x+9 f(x)-x^4 m(x)= 2IxIanswers : 9/2IxI^4+99/(2IxI)^4+92I9/x^4+9I(9/2IxI+9)^4

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Precalculus Calculus

11/30/23

pre calc 3.5 question

A projectile fired from the point (0,0) at an angle to the positive x-axis has a trajectory given by y=Cx - (1 + C²) (g/2) (x/v)². in this formula, x is the horizontal distance in meters, y is the... more

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Precalculus

11/30/23

Fill in the blank to complete the trigonometric formula. sin u cos v =

Fill in the blank to complete the trigonometric formula.sin u cos v =

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Precalculus

11/29/23

pre calcccccccccc

Suppose that the manufacturer of a gas clothes dryer has found that when the unit price is p dollars, the revenue R (in dollars) is R(p)=−6p2+18,000p.(a) At what prices p is revenue zero?(b) For... more

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Precalculus

11/28/23

Roots of Polynomial

Find a polynomial p∈Z[x] of the lowest degree with leading coefficient 1 such that p(1+∛2) = 0.Determine all roots of p.

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Precalculus

11/28/23

expoential and Logarithmic Models

The half-life of Radium-226 is 1590 years. If a sample contains 100 mg, how many mg will remain after 1000 years?

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Precalculus

11/28/23

Exponentialand Logarithmic Models

You go to the doctor and he gives you 15 milligrams of radioactive dye. After 16 minutes, 6.75 milligrams of dye remain in your system. To leave the doctor's office, you must pass through a... more

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Precalculus Math

11/27/23

How do I do this and what are the answers?

Combined, there are 187 Asians, Africans, Europeans, and Americans in a village. The number of Asians exceeds the number of Africans and Europeans by 81. The difference between the number of... more

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Precalculus Math

11/27/23

Combined, there are 187 Asians, Africans, Europeans, and Americans in a village.

The number of Asians exceeds the number of Africans and Europeans by 81. The difference between the number of Europeans and Americans is 12. If the number of Africans is doubled, their... more

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Precalculus

11/27/23

Homework question help

The radioactive element carbon-14 has a half-life of 5750 years. A scientist determined that the bones from a mastodon had lost 81.5% of their carbon-14. How old were the bones at the time they... more

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Precalculus Biology Calculus Physics

11/26/23

Two parallel wires question

Two parallel wires separated by 4.0 cm repel each other with a force per unit length 2.0 × 10-4 N/m. The current in one wire is 5.0 A. (a) Find the current in the other wire. (b) Are the currents... more

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Precalculus Science Biology Calculus

11/26/23

Parallel Wires Question Physics

Two long, parallel wires separated by 2.50 cm carry in opposite directions. The current in on wire is 1.25 A, and the current in the other is 3.50 A. (a) Find the magnitude of the force per unit... more

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Precalculus Science Biology Calculus

11/26/23

Magnetic field question

The magnetic field 40.0 cm away from a long, straight wire carrying current 2.00 A is 1.00 μT. (a) At what distance is it 0.100 μT? (b) at one instant, the two conductors in a long household... more

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Precalculus Math Science Calculus

11/26/23

Directionality Physics 2 Question

A long, straight wire lies on a horizontal table in the xy-plane and carries a current of 1.20 μA in the positive x-direction along the x-axis. A proton is traveling in the negative x-direction at... more

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Precalculus Math Biology Calculus

11/26/23

Earth’s magnetic field question

The orientation of small satellites is often controlled using toque from current-carrying coils in Earth’s magnetic field. Suppose a multiturn coil has a cross-sectional area of 6.36 × 10-4 m2,... more

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Precalculus Math Biology Calculus

11/26/23

Physics II Question

At a certain location, Earth has a magnetic field of 0.60 × 10-4 T, pointing 75° below the horizontal in a north-south plane. A 10.0 m long straight wire carries a 15 A current. (a) If the current... more

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Precalculus Math Biology Calculus

11/26/23

Magnetic Field Question

A laboratory electromagnet produces a magnetic field of magnitude 1.50 T. A proton moves through this field with a speed of 6.00 × 106 m/s. (a) Find the magnitude of the maximum magnetic force that... more

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Find a unit vector in the direction of the given vector. Verify that the result has a magnitude of 1.

find the component form of v given its magnitude and the angle it makes with the positive x-axis.

Find the component form of v, where u = 4i − j and w = i + 2j.

Find the component form of v, where u = 2i − j and w = i + 2j.

The initial and terminal points of a vector are given. Write the vector as a linear combination of the standard unit vectors i and j.

The initial and terminal points of a vector are given. Write the vector as a linear combination of the standard unit vectors i and j.

Finding Limits from a graph

precalculus 12 grade

precalculus 12 grade

pre calc 3.5 question

Fill in the blank to complete the trigonometric formula. sin u cos v =

pre calcccccccccc

Roots of Polynomial

expoential and Logarithmic Models

Exponentialand Logarithmic Models

How do I do this and what are the answers?

​Combined, there are 187 ​Asians, Africans,​ Europeans, and Americans in a village.

Homework question help

Two parallel wires question

Parallel Wires Question Physics

Magnetic field question

Directionality Physics 2 Question

Earth’s magnetic field question

Physics II Question

Magnetic Field Question

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Combined, there are 187 Asians, Africans, Europeans, and Americans in a village.