Question

A ball is thrown vertically upward with an initial velocity of 80 feet per second. The distance s (in feet) of the ball from the ground after t seconds is s=80t-16t^2

(a) The ball will strike the ground when t is 5 seconds.

(b) The ball is more then 36 feet above the ground for the time t when __<t<___?

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Math
Algebra

Other

Related Algebra Q&A

Find answers to questions asked by students like you.

Q: I need help with number 78

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and s...

Q: la3 126 Divide the following: Preview

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question s...

Q: Find the length and width

A: Find the length and width of the rectangle

Q: + X Content C http:://elearning.kctcs.edu/ultra/courses/_493515589_1/cl/outline Hawkes Learning MAT ...

A: simplification.

Q: In Phoenix, rental of a U-Haul 24-foot moving truck for 6 hours costs $39.95 plus $0.56 per mile. Th...

A: Consider the given question,(a)Let x represent the number of miles driven.Given 24-foot moving truck...

Q: The area of a triangle is 36 square feet. The height of the triangle is 1 foot shorter than its base...

A: From given, the height of the triangle is 1 foot shorter than its base, h=b-1.

Q: Draw the graph. What is the solution of the system? -12x+4y=12 3x - y = 0

A: For -12x+4y=12 we solve for y.For y=3x+3 make a table. 

Q: A flagpole is supported by a wire fastened 36ft from its base. The wire is 12ft longer than the heig...

A: Let ‘x’ be the length of the wire and ‘y’ be the height of the pole.According to the question,

Q: A force of 50 pounds stretches a spring 5 inches. (A) how far will a force of 20 pounds stretch the ...

A: To determine the following parts.(A). How far will a force of 20 pounds stretch the spring?(B). what...

Q: Solve the following systems of equations by graphing -2x+4y=12 y=1/2x

A: Given equation is

Q: Graph 4x-y=6              X+2y=6 What is the solution of the system?

A: Click to see the answer

Q: For  question 11. Once I plug in -3, for x and 4 for y after that I am not sure what todo?

A: Given,

Q: Factor by using the appropriate substitution. 3(x-8)2 -5(x-8)-2

A: Consider the given expression:

Q: If an investment company pays 6% compounded semiannually, how much should you deposit now to have $1...

A: Compound interest formula:

Q: Factor out a negative real number from the polynomial and then write the polynomial factor in standa...

A: GCF of -4x^2-8x+20 is -4.

Q: please solve and show your work

A: Consider the given problem to be solved:

Q: Solve for x. Enter your answer as a decimal rounded to the nearest tenth. -2x + 1 = 2/5

A: Subtract 1. Subtract using LCD. 

Q: x+4/5=4

A: Cross multiply by 5. 

Q: An object is thrown downward, with an initial speed of 16 ft/s, from the top of a building 320 ft hi...

A: v=initial speed= -16 ft/s [given]When the object hits the ground then it will cover 320 ft. So, d=32...

Q: Solve the system by the elimination method  1/2x + 1/4y= 1/6 -1/5x- 1/4y= -1/60

A: Given,

Q: please solve and show your work

A: To simplify the expression and convert exponents to positive exponents.

Q: Jeff recently drove to visit his parents who live 288 miles away. On his way there his average speed...

A: Refer to the question we have been provided with the information that  jeff drove 288 miles to meet ...

Q: write the equation for a line form, y=mx+b for a line that passes through the points (2,8) and (10,-...

A: Obtain the slope of the line that passes through the points (2,8) and (10,–4) as follows.

Q: The value of a brand new car is $31, 000 and the value depreciates 25% every year Write a function t...

A: Given thatInitial value of the car is $31000Depreciation rate is 25%

Q: How do I plot -7+i and 8-6i os it on the -7 and 8 since -6 is on th imaginary line

A: To plot these complex numbers, we need to draw a complex plane.Complex Plane: Here, X-axis is the re...

Q: Use synthetic division to decide whether the given number k is a zero of the polynomial function. If...

A: For synthetic division we find the coefficients of x^2+3x+2.That is 1,3,2

Q: 1/2t+6=-7

A: Click to see the answer

Q: Multiply rational expressions (h^2+5h-6) × 10h^2/2h^2+12h

A: Multiply rational expressions

Q: A railroad crew can lay 6 miles of track each day. They need to lay 168 miles of track. The length, ...

A: According to the given information,

Q: Suppose than an object that is originally at room temperature of 30 Celsius is placed in a freezer. ...

A: Given:

Q: What are the blanks?

A: Given: -

Q: White a polynomial f(x) that satisfies the given conditions. Degree 3 polynomial with integer coeffi...

A: Given zeros of a polynomial,

Q: I am stuck on this equation and unsure how to solve. Here is the equationSolve by system of equation...

A: Given system of equations are 

Q: Write each fraction in terms of the LCM of the denominators. 5x x2 − 49 ,  x − 1 7x −...

A: Given the fractions,

Q: please solve and show your work

A: Given fraction is,  

Q: I need help with number 51

A: By algebra of limits , we have the following result 

Q: The accompanying data were compiled by the admissions office at a college during the past 5 years. T...

A: The values in the following table is required for calculating the equation of least squares line.

Q: How many gallons of 25% alcohol solution and 45% solution must be mixed together to get 7 gallons of...

A: To determine the gallons of 25% alcohol solution and gallons of 45% alcohol solution must be mixed-t...

Q: please solve it and show your work

A: Simplify the given expressions as follows.

Q: Factor the trinomial with a negative leading coefficient  3+2x-8x2

A: Given,

Q: Solve the system by the elimination method -5x+3y= 1.2 -4x+6y= 4.2

A: The given system of equations is,

Q: 5. (a) Use modular arithmetic to show that if an integer a is not divisible by 3, then a2 = 1 (mod 3...

A: To prove the given statements (using arithmetic modulo 3)

Q: My NotesAsk Your Teacher   Let A and B be subsets of a universal set U and suppose n(U) = 360, n(...

A: It is given that A and B are subsets of the universal set U.

Q: the first choice is growing or decaying.

A: Click to see the answer

Q: Given that g(x) = -2xˆ2 + 8x -4 / xˆ2 + 2 a) Identify the horizontal asymptotes (if any)? b) If the ...

A: Refer to the question we have to find the horizontal asymptote for the provided function as,

Q: If  g⁢(t)=-7t3, evaluate g(2t).

A: Given: -

Q: evaluate f(x)=2x2+3X-1   using the following value: f(a +h)-f(a)/h

A: Click to see the answer

Q: Solve a quardratic expression by factoring x3+18x2+45x=0

A: Firstly, we factor out x from given equation

Q: The table below contains the average public school classroom teacher's salaries, S, for an 11-year p...

A: t=number of years after 1990.So to find t we will subtract 1990 from each year.

Q: 

A: Click to see the answer