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3 years ago

Find a polynomial that describes the area of the lawn which kevin has to mow in his front yard 6x+5,4x-9

Mathematics

1 answer:

Likurg_2 [28]3 years ago

7 0

Answer:

$Area=24x^2-34x-45$

Step-by-step explanation:

Length and width of the yard are $(6x+5)$ and $(4x-9)$ .

$Area=length\times width\\\\Area=(6x+5)\times (4x-9)\\\\Area=24x^2+20x-54x-45\\\\Area=24x^2-34x-45$

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A cellphone company charges $60 for a cellphone and a monthly rate to use the phone.Regina will pay $1,140 for a 24-month cellph

Alinara [238K]

The monthly rate is $45 for this cellphone plan.

Step-by-step explanation:

Given,

Amount charged for cell phone = $60

Amount paid by Regina for 24 month plan = $1140

Number of months = 24

Let,

m be the monthly rate for cellphone plan

Number of months * Monthly rate + cellphone charges = Amount paid

$24m+60=1140\\24m=1140-60\\24m=1080$

Dividing both sides by 24

$\frac{24m}{24}=\frac{1080}{24}\\m=45$

The monthly rate is $45 for this cellphone plan.

Keywords: subtraction, division

Learn more about subtraction at:

#LearnwithBrainly

7 0

3 years ago

A bag is filled with 200 silver coins and 123 gold coins. What is the theoretical probability of not pulling out a silver coin

Simora [160]

62% because 200 silver coins out of 323 (total of all coins) is .619..., resulting in 62%

4 0

3 years ago

Six more than four times a number is -26

bearhunter [10]

4x + 6 = -26

I'm not sure if your supposed to solve, but I will anyways :)

4x + 6 = -26
-6 -6
4x = -32
x = -8

Hope this helps!

5 0

3 years ago

Solve the proportion 2/5=x/3

Slav-nsk [51]

Answer:

1.2

Step-by-step explanation:

1.2/3 is 40 percent

2/5 is 40 percent

used guess and check took me 1 minute

8 0

3 years ago

Holes <br> X=<br><br> Vertical Asymptotes<br> X=

eduard

Answer:

Step-by-step explanation:

$f(x)=\dfrac{x^2+11x+18}{x^2+19x+90}\\\\\text{DOMAIN:}\\\\x^2+19x+90\neq0\\\\x^2+9x+10x+90\neq0\\\\x(x+9)+10(x+9)\neq0\\\\(x+9)(x+10)\neq0\iff x+9\neq0\ \wedge\ x+10\neq0\\\\x\neq-9\ \wedge\ x\neq-10$

$\\\\\text{Therefore the vertical asymptotes are:}\\\\x=-9\ and\ x=-10.$

7 0

4 years ago