15,254 Answered Questions for the topic precalculus

Precalculus Trigonometry

05/05/23

Can someone explain step by step how to solve?
A cruise ship is traveling south, approximately 22mph when it hit a gulf stream flowing east of 4mphA)what is the vector component for the cruise ship?(show work B)what is the vector component for... more
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Precalculus

05/04/23

Augmented matrix
Write the augmented matrix of the system and use it to solve the system. If the system has an infinite number of solutions, express them in terms of the parameter z.-15x+15y+2z= 13727x-25y-3z=... more
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Precalculus

05/04/23

Row reduction question

Solve the system by row reduction.- 15x - 2y = - 710x + 2y = 7How would I go about solving this?
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Precalculus Trigonometry

05/03/23

For what values of t and s does the equality ⟨−(3𝑡+3),4𝑠−6𝑡⟩=⟨3𝑠+5𝑡,2𝑡−1⟩hold true? s= ? t=? At these values, the resulting vector is____?
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Precalculus Trigonometry

05/03/23

For what values of 𝑡 t and 𝑠 s does the equality ⟨−(3𝑡+3),4𝑠−6𝑡⟩=⟨3𝑠+5𝑡,2𝑡−1⟩ hold true? t= and s= At these values, the resulting vector is .
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Precalculus Trigonometry

05/03/23

Helppp???????!?!
A cruise ship he’s traveling south, approximately 22mph when it hit a gulf stream flowing east of 4mphA)what is the vector component for the cruise ship?(show work B)what is the vector component... more
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Precalculus Trigonometry

05/03/23

Need help???!?!??
Use the vectors on the graph to answer questions below A) find the vector component of aB)find the vector of component bc)find -3a+2b place answer in linear combination.D)find the dot product... more
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Precalculus Math Science Algebra 1

05/03/23

Distance rate and time

Sally left the city for vacation. Dan left 8 hours later going 40 mph faster to catch up. After 7 hours Dan caught up. What was Sally's average speed?
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Precalculus Math Science Algebra 1

05/03/23

Distance, rate, and time

A cargo plane flew from the US across the Atlantic at two hundred seventeen mph, and flew back to the US at two hundred thirty-seven mph. Given that the first trip took two hours longer, how long... more
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Precalculus Math Science Algebra 1

05/03/23

Distance, rate, and time
Alyssa left downtown Houston, and three hours later, Joan left going 54 mph faster to catch up. After another two hours, Joan caught up. Find Alyssa's average speed.
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Precalculus Math Science Algebra 1

05/03/23

Distance, rate, and time
Melanie left Greensboro traveling sixty-nine mph. Sally, to catch up, left some time later driving at seventy-eight mph. Sally caught up after three hours. How long was Melanie driving before Sally... more
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Precalculus

05/03/23

Will someone please help me with these two Pre Calculus questions?
The expression tanX+1/1-tanX can be rewritten as which of the following?A. tan (x - (5π/4))B. tan (x + (3π/4))C. tan (x + (7π/4))D. tan (x - (7π/4))What is the exact value of sin(195°)?A. (√2 +... more
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Precalculus Math Science Algebra 1

05/03/23

Distance, rate, and time
Jessica traveled to burbank by car. Going there took 5 hours, and the return trip lasted 8 hours. Jessica averaged a speed of 53 mph while returning. Find the average speed of the trip there.
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Precalculus

05/03/23

Will somebody please help me with these Pre Calculus questions?
The expression tanX+1/1-tanX can be rewritten as which of the following?A. tan (x - (5π/4))B. tan (x + (3π/4))C. tan (x + (7π/4))D. tan (x - (7π/4))What is the exact value of sin(195°)?A. (√2 +... more
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Precalculus

05/03/23

Tutor was a no show
Hi. The tutor scheduled a session but then was a no show. We waited 10 minutes inside the waiting room and he did not show up. Just want to make sure we will not be getting charged for it. ... more
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Precalculus Trigonometry

05/03/23

Suppose u ¯ = ⟨ 3 , − 3 ⟩ and v ¯ = ⟨ 15 , − 3 ⟩ are two vectors that form the sides of a parallelogram. Then the lengths of the two diagonals of the parallelogram are?
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Precalculus

05/03/23

Find an equation for the conic section with the given properties. The hyperbola with vertices V1(−1, −3) and V2(3, −3) and foci F1(−3, −3) and F2(5, −3)
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Precalculus Math Calculus Trigonometry

05/02/23

What is conic section?

give a simple definition of conic section.Discuss an application of the conic that you find most interesting.Include an example of a mathematical equation that models the application How does it... more
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Precalculus Math

05/02/23

What is conic section?

What is conic section? Discuss an application of the conic that you find most interesting.Include an example of a mathematical equation that models the applicationHow does it apply to the real world? more
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Precalculus Math Science Algebra 1

05/02/23

Coin word equation

Michelle has a purse that contains 7 silver coins and 5 gold coins. She draws one coin at random and then draws a second coin. What is the probability that the first coin is gold and the second... more
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Precalculus Math Science Algebra 1

05/02/23

Money word equation

During the sale, the price of the used car was marked down 10 percent. If the sale price of the used car was $1800, what was the price of the used car originally?
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Precalculus Math Science Algebra 1

05/02/23

Money word equation

Gerald peered into his wallet and found $270 in $10 and $20 bills. If there were 6 more $10 bills than $20 bills, how many of each did he have?
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Precalculus Math Science Algebra 1

05/02/23

Word equation, algebra one
A northbound train left at midnight. Three hours later, a southbound train left the same station. At 6 a.m. the two trains were 330 miles apart. Find the rate of each train if the northbound train... more
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Precalculus

05/02/23

Will someone please help me with these calculus questions?

What is a coterminal angle of ​16⁢π/3A. 150°B. 240°C. 315°D. 1035°For what value of θ is cscθ undefined?A. 0°B. 45°C. 90°D. 270°
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Precalculus

05/01/23

Will someone please help me with these two calculus questions
Determine the angle between 0 and 2π that is coterminal to 750°.A. 4π/3B. 11π/6C. 2π/3D. π/6Three friends are camping in the woods with their tents in a triangular arrangement. Tent 1 is 76 feet... more
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