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3 years ago

Factor the equation.

Mathematics

1 answer:

barxatty [35]3 years ago

3 0

X² - 11x + 18

find factors of x² and 18 that will give you -11x

x² - 11x + 18
x -9
x -2

(x - 9)(x -2) is your answer

if you are finding the x, place each parenthesis equal to zero

x - 9 = 0
x - 9 (+9) = 0 (+9)
x = 9

x - 2 = 0
x - 2 (+2) = 0 (+2)
x = 2

x = 2, 9

hope this helps

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Number 15 please logarithms algebra two

juin [17]

Answer:

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Step-by-step explanation:

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3 years ago

Write the digit of eighty five thousand nine hundred and ten

Eddi Din [679]

Answer:

85,910

You get this because whenever there are three digits after a number you add a comma as seen in the number there are three digits after 85 so you add a comma.

Hope it helps bai!

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3 years ago

Read 2 more answers

John traveled 80% of the way from yellow-town to green-fields by train at an average speed of 80 miles per hour. the rest of the

zaharov [31]

Pick 100 km for D...
This would yield T=100 minutes 

Using the question stem we calculate 80 km were traveled in 1h (or 60 minutes).... 

This leaves us with 40 minutes (2/3 of an hour) to travel 20km..... 

R*T=D 

R*2/3=20 

R=30 

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3 0

4 years ago

a cookie baker has an automatic mixer that turns out a sheet of dough in the shape of a square 12 inches wide. His cookie cutter

iragen [17]

Answer:

All the sizes that satisfy $kd^2 =144$

Step-by-step explanation:

To answer this question we first need to find the minimum wasted area of the dough.

Let us call the diameter of the cookie $d$ , and $a$ the length of the dough sheet, then the $n$ number of cookies that fit into length $a$ will be

$n = \dfrac{a}{d}$

and therefore, the number that will fit into the whole square sheet will be

$n^2 = \dfrac{a^2}{d^2}$

Since the area of each cookie is

$A = \pi \frac{d^2}{4}$

the area of n^2 cookies will be

$A_n = n^2\pi \frac{d^2}{4}$ ,

which is the area of all the cookies cut out from the dough sheet; therefore, after the cutting, the area left will be

(1). $\text{area left}= a^2-n^2\pi \frac{d^2}{4}$

putting in the value of $n^2$ we get

$a^2- \dfrac{a^2}{d^2}\pi \frac{d^2}{4}$

which simplifies to

area left = a^2( 1 - (π/4))

putting in a = 12 we get

area left = 30.902 in^2.

Going back to equation (1) we find that

a^2-n^2(πd^2/4) =30.902

12^2- n^2(πd^2/4) =30.902

and if we call k = n^2, we get

12^2- k(πd^2/4) =30.902

113.098 = k(πd^2/4)

simplifiying this gives

kd^2 = 144.

As a reminder, k here is the number of cookies cut from the dough sheet.

Hence, our cookie diameter must satisfy kd^2 = 144, meaning larger the diameter of the cookies less of the should you cut out to satisfy the above equality.

8 0

4 years ago

18-5y=y+4 how do you do this

Ipatiy [6.2K]

18 - 5y = y + 4
Step 1: Simplify both sides of the equation.
18 - 5y = y + 4
Simplify: (show steps)
-5y + 18 = y + 4
Step 2: Subtract y from both sides
-5y + 18 - y = y + 4 - y
6y + 18 = 4
Step 3: subtract 18 from both sides
-6y + 18 - 18 = 4 - 18
-6y = -14
Step 4: divide both sides by -6
-6y/-6 = -14/-6
y=7/3
Use Mathway and Mathpapa for all algebra questions mathpapa will answer it and show how it got the answer with colored numbers to make it easier to explain it.

3 0

3 years ago