09/26/19

passes through (8,3) and has vertex at (-5,9)

What is the radius of the unknown planet?

You are on a pleasure cruise through the universe and you crash in the ocean of an unknown planet. Your spaceship floats on the water and its top is 21 feet above the surface of the water. You swim... more

09/24/19

find the height of the antenna

There is an antenna on the top of a building. From a location 400 feet from the base of the building, the angle of elevation to the top of the building is measured to be 36°. From the same... more

Specific Question About Solving: In a TV, the screen height is 0.75 times the screen width. It measures 39 inches diagonally, what is the screen width?

I’ve seen the solution to this problem, but am confused as to why a certain step is taken. w^2+0.75w^2=1521 becomes w^2+0.5625w^2=1521Why/How does 0.75w^2 become 0.5625w^2 in solving this problem?... more

09/23/19

What is c(n)=-7+6(n-1) to the fourth term

09/23/19

An equation of the parabola is y=

P(-1,0) Q(2,0) V(1,-2)but the vertex isn’t completely in the center of the parabola. Not sure what to do I don’t know how to find it without the vertex

09/23/19

Solving a system with 3 variables

A collection of nickles, dimes, and quarters consists of 21 coins with a total of $2.45. If the number of dimes equals the number of nickles, find the number of each type of coin

09/23/19

Find a solution to the system of equations by finding the reduced row-echelon form of the augmented matrix for the system of equations.

Find a solution to the system of equations by finding the reduced row-echelon form of the augmented matrix for the system of equations. a. c. b. d.          Please select the best answer... more

What is the transpose of the 2x2 matrix I?

09/23/19

im struggling for geometry would love an answer for this question

on a coordinate plane, each point on ST is defined by coordinate (x,y). the segment is roatated 90 counterclockwise to create ST. which of the following defines a point ST that corresponds to point... more

Find the domain. F(x)=(x+2)(x-2)/x^2+4

09/22/19

What is the correct way of solving?

<A is a supplement of <B, <A is a complement of <C & m<B = 124. Find m<B + m<C

Solve the equation algebraically. 4√x+x=1

Solve the equation algebraically. 6√x+x=3

09/22/19

Pre algebra word problem

A trucks enters a highway driving 60 mph a car enters the highway at the same place 6 minutes later and drives 67 mph in the same direction from the time the car enters the highway how long will it... more

How many miles is City A from City B?

Wilma drove at an average speed of 40 mi/h from her home in City A to visit her sister in City B. She stayed in City B 25 hours, and on the trip back averaged 40 mi/h. She returned home 48 hours... more

09/21/19

Word problem calculus

A truck enters a highway driving 60 mph a car enters the highway at the same place 7 minutes later and drives 68 mph in the same direction from the time the car enters the highway how long will it... more

09/21/19

What is the answer for this question?

For the following exercises, use this scenario: A wireless carrier offers the following plans that a person is considering. The Family Plan: $90 monthly fee, unlimited talk and text on up to 8... more

09/21/19

Word problem calculus

A truck enters a highway driving 60 mph a car enters the highway at the same place 13 minutes later and drives 74 mph in the same direction from the time the car enters the highway how long will it... more

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