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2 years ago

Please help 50 points! Simplify the expressed

Mathematics

1 answer:

LenKa [72]2 years ago

3 0

Answer:

Step-by-step explanation:

$\frac{x^{2} -x-12}{x+4} * \frac{2x^{2}-32 }{x^{2} -8x+16}$ rewrite as multiplication

$\frac{x^{2} +3x-4x-12}{x+4} * \frac{2(x^{2}-16) }{x^{2} -8x+16}$ look to factor

$\frac{x(x+3)-4(x+3)}{x+4} * \frac{2(x-4)(x+4) }{(x-4)^{2}}$ , difference of 2 squares and perfect square

$\frac{(x+3)(x-4)}{x+4} * \frac{2(x-4)(x+4) }{(x-4)^{2}}$ , finish factoring and simplify

2(x+3)

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I need the thing for the square pizza ill give brainlest to who gets its right

baherus [9]

Answer:

A) The square pizza gives you more delicious (XD) pizza. And 24 (225-201) more pizza.

B) There's more crust on the square pizza then on the circle one, according to 60>50!

Step-by-step explanation:

A)First, let's calculate the area of the round pizza.

We need to find out the radius, and radius= $\frac{diameter}{2}$

So radius=16/2, which is 8.

And a circle's area is $\pi r^{2}$ , so the equation for this round pizza is:

$\pi (8)^{2}$

=64 $\pi$

≅201 $inch^{2}$

Second, we calculate the square pizza's area, which is pretty easy since the equation for a square is: $(Side Length)^{2}$ .

So for this square pizza, the area would be:

$(15)^{2}$

=225 $inch^{2}$

Lastly, we compare the two, 225>201, so the square pizza gives you more delicious (XD) pizza. And 24 (225-201) more pizza.

B)So this problem is actually asking you to find the circumference of the circle and perimeter of the square.

Let's start off with the circle, the formula for circumference is:

$\pi (d)$

We already have the d, (diameter), which is 16, so the circumference of this circle pizza is:

16 $\pi$

≅50 inch

Then we find the a square's, the equation for perimeter is:

4 (side length)

=4(15)

=60 inch

So happily, we found out there's more crust on the square pizza then on the circle one, according to 60>50!

Hoped I helped! And hope you can get full credit with my will elongated answer XD.

6 0

2 years ago

3) Find the value of FD. bited F 12 12 13x - 16 E 4x+11 D

vlada-n [284]

The Length of FD = 26 cm

According to the given information

FE = FC = 12cm

As FE, FC both are radius of circle

The tangent segments to a circle from a external point are equal

Hence

CD = ED

13x - 16 = 4x + 11

13x - 4x = 11 + 16

9x = 27

x = 27/9

x = 3

CD = 13x - 16

= 13 × 3 - 16

= 23 cm

ED = 4x + 11

= 4 × 3 + 11

= 23 cm

In Triangle FED

FE is perpendicular to ED

According to Pythagoras Theorem

$FD^{2}= FE^{2}+ED^{2}$

= $12^{2}+ 23^{2}$

= 673

FD = 26 cm approx.

The Length of FD = 26 cm

To know more about Pythagoras Theorem

brainly.com/question/343682

#SPJ1

8 0

1 year ago

What is the ratio and percent of the rectangle below is shaded

kvv77 [185]

Answer:

choice C) 1:3 and 33 1/3%

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Please answer quickly with little explanation

eimsori [14]

What’s the question

6 0

2 years ago

24 cm ,18cm ,c We are looking for c

Ierofanga [76]

Step-by-step explanation:

we can find the value of c by Pythagoras theorem

according to Pythagoras theorem

h² = a² + b²

where

h = hypotenuse (i.e. longest side of a right angled triangle)

a = side

b = base

so, we have to find h or hypotenuse here

h² = (24)² + (18)²

h = 576 + 324 = 900

h² = √900 = 30

c = 30

therefore, value of c is 30.

Hope this answer helps you dear!

3 0

2 years ago