3 years ago

Factorise y^2 - 16 (y squared)

Mathematics

2 answers:

cricket20 [7]3 years ago

8 0

$y^2-16=y^2-4^2=(y-4)(y+4)\\\\\text{used}\ a^2-b^2=(a-b)(a+b)$

Mila [183]3 years ago

3 0

Sqrt(y^2) = y
sqrt(16) = 4
-4y + 4y = 0
The answer is
(y-4)(y+4)

You might be interested in

Without drawing the graphs, find the points of intersection of the lines:

tankabanditka [31]

The answer is (4,7) :)

4 0

3 years ago

A clothing store buys jeans for $12 and marks them up %200 before selling them to customers. What is the selling price of jeans?

zaharov [31]

I would multiply $12 times 200%

5 0

2 years ago

The volume of this cylinder is 1,909.92384 cubic millimeters. What is the radius? Use n=3.14 and round your answer to the neares

klemol [59]

Remember that the volume of a cylinder is

$\begin{gathered} V=\pi\cdot r^2\cdot h \\ \end{gathered}$

so we have that

$r=\sqrt[]{\frac{V}{\pi\cdot h}}=\sqrt[]{\frac{1909.92384}{3.14\cdot6.6}}=\sqrt[]{92.12}=9.6$

so the radius is 9.6 milimeters

6 0

1 year ago

Jennifer needs to use a ladder to clean a second floor window on a building. If the window is 13 ft above the ground and the bas

BigorU [14]

By using the Pythagoras theorem, the length of the ladder will be 13.6 feet.

<h3>What is a Pythagoras theorem?</h3>

The Pythagoras theorem states that the sum of two squares equals the squared of the longest side.

The Pythagoras theorem formula is given as

H² = P² + B²

Jennifer needs to use a ladder to clean a second-floor window on a building.

If the window is 13 ft above the ground and the base of the ladder is 4 ft from the building.

Then the length of the ladder will be

H² = 13² + 4²

H² = 169 + 16

H² = 185

H = 13.6 ft

More about the Pythagoras theorem link is given below.

brainly.com/question/343682

#SPJ1

7 0

2 years ago

Identify the equation in the following table

yan [13]

The answer is c y=3x-1 if you just plug in the numbers you can see if it is equal

6 0

2 years ago