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3 years ago

Factored version of y^2-2y-15

Mathematics

1 answer:

marin [14]3 years ago

3 0

Answer: (y-5)(y+3)

// If the coefficient of the y^2 is 1 and equation has integer-solution, than 15 must be divisible to that solution. Fermat's Theorem consequence

It's obvious that y=5 is solution.

// If x1 and x2 are solution to quadratic equation, ay^2+bx+c, where a is 1, then x1*x2=c. Fermat's Theorem

Divide equation by (y-5), If you cannot do this look for other obvious solutions.

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A paint mixture was formed by mixing exactly 3 colors of paint. By volume, the mixture was x% blue paint, y% green paint, and z%

sergeinik [125]

Answer:

Both statements are sufficient to answer the question

Step-by-step explanation:

Given:

- The paint mixture has following proportions:

Total volume of paint = T

Blue: x*T / 100

Green: y*T/100

Red: z*T/100

Find:

Statement 1: x = y

Statement: z = 60

Which of the above statement is sufficient to calculate the amount of green paint used

Solution:

Statement 1:

- The amount of blue paint used is:

1 gallon = x*T / 100

- x = y,

1 gallon = y*T / 100

Hence,

Amount of green paint used is 1 gallon

- The statement is sufficient

Statement 2:

- The amount of red paint used is:

3 gallon = z*T / 100

T = 300 / z = 300 / 60 = 5 gallons

T = R + B + G

G = T - R - B

G = 5 - 3 - 1

G = 1 gallons

Hence,

Amount of green paint used is 1 gallon

- The statement is sufficient

5 0

3 years ago

Help mee is guyssssss

MissTica

Answer: 7
7 is the middle number when the number are out from least to greatest. Hope that helps!!

6 0

3 years ago

Read 2 more answers

Help please easy points

Tanya [424]

Answer:

y=2x

Step-by-step explanation:

We need to first find the slope. Lets get two points and apply the slope formula.

(1,2) and (2,4)

Rise: 2

Run: 4

Slope: 2

Then, lets use the standard way of showing a linear equation.

y=mx+b

y=2x+0

4 0

2 years ago

Read 2 more answers

Stan's, marks, and wayne's ages are consecutive whole numbers. stan is the youngest, and wayne is the oldest. the sum of their a

White raven [17]

Stan's, Mark's and Wayne's ages are 35 , 36 and 37 years respectively.

Explanation

Stan's, Mark's and Wayne's ages are consecutive whole numbers and Stan is the youngest and Wayne is the oldest.

So, lets assume that Stan's, Mark's and Wayne's ages are $n, n+1$ and $n+2$

Given that, the sum of their ages is 108. So, the equation will be.....

$n+(n+1)+(n+2)=108\\ \\ 3n+3=108\\ \\ 3n=108-3=105\\ \\ n=\frac{105}{3}=35$

So, Stan's age is 35 years , Mark's age is (35+1)= 36 years and Wayne's age is (35+2)= 37 years.

4 0

4 years ago

Problem #2

e-lub [12.9K]

The perpetual inventory system is an inventory management method that records when stock is sold or received in real-time.

<h3>How to depict thejournal?</h3>

a. Debit Accounts Receivable 12000

Credit Sales 12000

Debit Cost of Merchandise Sold 6500

Credit Merchandise Inventory 6500

b. Debit Cash 9500

Credit Sales 9500

Debit Cost of Merchandise Sold 5300

Credit Merchandise Inventory 5300

c. Debit Cash 2900

Credit Sales 2900

Debit Cost of Merchandise Sold 1700

Credit Merchandise Inventory 1700

d. Debit Credit Card Expense 385

Credit Cash 385

e. Debit Credit Card Expense 75

Credit Cash 75

Learn more about journal on:

brainly.com/question/14279491

#SPJ1

6 0

2 years ago