9) A rectangle has a base of 4x

2. A circular patio has a diameter of 18 feet. How

lisabon 2012 [21]

Answer: So to cover the patio it would take 255 whole tiles. 254.469 if you want to be exact.

Step-by-step explanation:

When finding flooring needed we are finding for area. We know the formula for finding the area of a circle is A= $\pi r^{2}$ so we plug in our known variables...

we know r because radius is half of diameter and diameter was given in problem. So half of 18 is 9.

r=9

A= $\pi 9^{2}$

A= $\pi$ 81

A=254.469

8 0

3 years ago

What is the quotient 4-x/x^2+5x-6 divided by x^2-11x+28/x^2+7x+6 in simplified form?

sashaice [31]

$\dfrac{4-x}{x^2+5x-6}:\dfrac{x^2-11x+28}{x^2+7x+6}=(*)$

$4-x=-(x-4)\\\\x^2+5x-6=x^2+6x-x-6=x(x+6)-1(x+6)=(x+6)(x-1)\\\\x^2-11x+28=x^2-7x-4x+28=x(x-7)-4(x-7)\\=(x-7)(x-4)\\\\x^2+7x+6=x^2+6x+x+6=x(x+6)+1(x+6)=(x+6)(x+1)\\\\(*)=\dfrac{-(x-4)}{(x+6)(x-1)}:\dfrac{(x-7)(x-4)}{(x+6)(x+1)}$
$=\dfrac{-(x-4)}{(x+6)(x-1)}\cdot\dfrac{(x+6)(x+1)}{(x-7)(x-4)}=\dfrac{-1}{x-1}\cdot\dfrac{x+1}{x-7}\\\\=-\dfrac{x+1}{x^2-7x-x+7}=-\dfrac{x+1}{x^2-8x+7}$

7 0

3 years ago

I need help does anyone know?

Ne4ueva [31]

Answer:

Step-by-step explanation:

Its 80 ounces

4 0

3 years ago

Read 2 more answers

If the rate of inflation is 1.9% per yeta, the future price p(t) in dollars of a certain item can be modeled by the following ex

crimeas [40]

Answer:

P(0) = 2000

P(10) = 2414

Step-by-step explanation:

The price for today is given by P(t) when t=0. Put 0 where t is, and do the arithmetic.

P(0) = 2000·1.019^0 = 2000

The price in 10 years is given by P(t) when t=10. Put 10 where t is, and do the arithmetic.

P(10) = 2000·1.019^10 ≈ 2000·1.207096 ≈ 2414

5 0

3 years ago

Ruby buys 24 books and 5 pens.she pays with a 500 rupee note and get rs90 as change.shania bought 12 books and 10 pens for rs280

just olya [345]

The cost of one pen is Rs 15.

It is given that Ruby paid with a 500 rupee note and got Rs 90 back.

This means that she spent 410 rupees.

Therefore the cost of 24 books and 5 pens is Rs 410.

Let the cost of books be x and the cost of pens be y.

Therefore, we can form the following equations:

24x + 5y = 410 (1)

12x + 10y = 280 (2)

We have to find the value of y.

Multiply the second equation by 2:

24x + 20y = 560 (3)

Now subtract the first equation from the third equation:

24x + 20y - 24x - 5y = 560 - 410

15y = 150

y = 15.

The variable y represents the cost of one pen.

This means that the cost of one pen is Rs 15.

Therefore, we have found that the cost of one pen is Rs 15.

Learn more about solving a system of equations here: brainly.com/question/13729904

#SPJ4

7 0

2 years ago

9) A rectangle has a base of 4x – 3 and a