MATHEMATICS HIGH SCHOOL

if its length is 2x-3 feet and its width is 5x+1 feet, what is the actual length and width of the rectangle ? ( a rectangle has an area of 1281 square feet.)

Answers

Answer 1
Answer: ( 2x - 3) X ( 5x +1) = 1281

*it's a quadratic

10x² -13x -3 = 1281  * move 1281 to the left side to equal zero

10x² -13x - 1284= 0
 

and solve to look for the zeros....

Do you know how to?

Related Questions

If you put $150 in a savings account that paid 6% compounded monthly, how much interest would you earn in five years?
Courtney reads around 110 words per minute. She procrastinated and now has less than a week to finish her reading assignment. If the book she needs to finish has another 820 pages left and each page has around 350 words, how many hours can Courtney complete her assignment?
Which expression is equivalent to -36 minus 8?
The tuition costs, C, for a local community college are modeled by C(h) = 250 + 200h, where h represents the number of credit hours taken. The local state university has tuition costs, S, modeled by the function S(h) = 300 + 180h. How many credit hours will a student have to take for the two tuition costs to be equal? Round the answer to the nearest tenth of an hour. 250 + 200h = 300 + 180h 250 + 200h = 300 + 180h − 180h − 180h 250 + 20h = 300 h = credit hours
The triangles are similar. If QR = 9, QP = 6, and TU = 19, find TS. Round to the nearest tenth.

In Bear Creek Bay in July, high tide is at 1:00 pm. The water level at high tide is 7 feet at high tide and 1 foot at low tide. Assuming the next high tide is exactly 12 hours later and the height of the water can be modeled by a cosine curve, find an equation for Bear Creek Bay's water level in July as a function of time (t).

Answers

Final answer:

The equation for Bear Creek Bay's water level in July as a function of time (t) is h = 3*cos(2*pi*t/12) + 4.

Explanation:

To find an equation for Bear Creek Bay's water level in July as a function of time (t), we can use a cosine curve since the height of the water can be modeled by it.

Based on the given information, we know that the water level is 7 feet at high tide and 1 foot at low tide. We also know that the next high tide is exactly 12 hours later.

Using the cosine function, where the amplitude (A) is (7 - 1)/2 = 3 and the period (T) is 12 hours, the equation for Bear Creek Bay's water level (h) as a function of time (t) is:

h = 3*cos(2*pi*t/12) + 4

Learn more about Equation for water level in Bear Creek Bay in July here:

brainly.com/question/316036

#SPJ12

if employee a logged 120 hours of travel in four years and employee b logged hours of travel at a 20% higher rate, how many more hours did employee b have than employee a after 1.5 years

Answers

Traveled hours by a in four years = 120
Traveled hours by b in four years = (120/100) * 120
                                                      = 144
Excessive hours traveled by b in 4 years           = 144 - 120
                                                                           = 24
Excessive hours traveled by b in 1.5 years        = (24/4) * 1.5
                                                                           = 9 hours

Is the algebraic expression 19s-19 in simplest form?

Answers

The algebraic expression 19s - 19 is in the simplest form.

A ball was kicked into the air from a balcony 20 feet above the ground, and the ball's height above the ground, in feet, t seconds after the ball was kicked is given by the equation h(t)=-16t^2+32t+20.what was the maximum height,in feet, of the ball above the ground after it was kicked

Answers

9.2222222222222222222222222222222222222222222222222222

The mean age of 5 people in a room is 27 years.A person enters the room.
The mean age is now 27.
What is the age of the person who entered the room?

Answers

Answer:

thee answer is 27

Step-by-step explanation:

As the first part was 27 and the second pARTR 27 NO MATHS NEED TO BE INCLUDED AS 27 IS THE CORRECT

The answer is 135
27 x 5=135

Which is greater 6.8 or 8.6?

Answers

8.6 because 8 is bigger than 6
8.6 is greater than 6.8 because the whole number in front of the decimal point (8) is greater than the whole number in front of the decimal point (6).
Other Questions
How to use integers in word problems
A merchant buys an old carpet for $25.00. He spends $15.00 to have it restored to goodcondition and then sells the rug for $50.00. What is the percent profit on his total investment?
Does anybody know the answer to this question please I need help?!
What is the loss percentage incurred by a company when it buys an asset for rs. 1,50,000 and sells it for rs. 75,500?