3 years ago

Does anyone know how to do this question ??

Mathematics

1 answer:

Viktor [21]3 years ago

4 0

Y^2-9^2

(y-9)(y+9)

To see if its right:

y*y+y*9-9*y-9*9
y^2+9y-9y-81
y^2-9^2

You might be interested in

The set of numbers that includes the whole numbers and their opposites is called the set of _____.

Misha Larkins [42]

The answer is an integer

5 0

3 years ago

Read 2 more answers

Is root -2 a irrational number? plz explain

Bogdan [553]

Answer:

yes

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

We use the formula V = πr2h to find the volume of a cylinder. Make h the subject of the formula.

Gennadij [26K]

Answer:

V / ( pi r^2) = h

Step-by-step explanation:

V = pi r^2 h

Divide each side by pi r^2

V / ( pi r^2) = pi r^2 h / pi r^2

V / ( pi r^2) = h

7 0

2 years ago

The ice cream store offers schools a discount of 12% for the month of June. The school decides to purchase ice cream bars for th

lilavasa [31]

Answer:

Divide the number of ice-cream bars into the number of people. Example: say you have 20 ice cream bars and 10 people you divide 20/10 and get 2 ice cream bars per person

Step-by-step explanation:

Are you also a simp for draco? :3

6 0

3 years ago

How is adding 6+3 like adding 60+30

storchak [24]

Answer:

because your just adding a zero at the end.

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers