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You should "math" because it is essential in today's world: it's used to design everything in your phone, to animate all your video games, to make special effects in movies more realistic, to make electric cars...

If you know math, you'll find a job in all the R&D departments of big tech companies.

It's your choice: you can be a sheep, and just use what others create for you, using their math knowledge. Or you can be the one who will create and design.

Linarose, but u forgot about the coefficient of friction between the box and the pizza that removes an amount of cheeze and/or toppings from the pizza, thereby reomoving some of the pizza. Plus the question never specifies WHEN he got the pizzas, so by now they could all have been eaten, or he could have ordered more.

2.19444444 ?

x² + 22 x + 40

Because there are two plus signs in the problem, there must be one plus sign in each factor.

The problem is to find two numbers whose product is 40 and whose sum is 22; 20 and 2.

(x + 20)(x + 2)

add the two together as in regular math. 32+12= 44. then put the neg. sign in front of answer : -44

When there is constant velocity there is no acceleration; thus, acceleration = 0 m/s².

(I am assuming that the direction does not change, when you say that it has a constant speed.)

i'd say 3... 2+1=3

I'd say thats about 1.7 pizzas since the delivery dude prob got hungery on the way.

If a jiffy is 1/100 of a second, then there are 100 jiffies in each second and 6000 jiffies in a minute.

50 words / minute  =  50 words / 6000 jiffies  =  1 word / 120 jiffies

This means that it takes 120 jiffies to type one word.

A formula for the surface area of a cone is:  SA  =  πr² + πr√(h² + r²)

Substituting:  SA  =  π(7)² + π(7)√( (24)² + (7)² )

                     SA  =  49π + 7π√( 576 + 49 )

                     SA  =  49π + 7π√(625)

                     SA  =  49π + 7x25π 

                     SA  =  49π + 175π 

                     SA  =  224π 

 the answer to life the universe and everything: 42

its 42pi cm^2

A pain to answer.

(-6/2) - (7/5)

Write both fractions with the common denominator of 10:

(-30/10) - (14/10)  

=  -44/10  = -22/5

if you can make 2 2/6 pencils in 1/2 a minute, you can make twice that many in 1 minute:

2 x (2 2/6)  =  4 4/6  =  4 2/3 pencils every minute.  

(-1/3)(4)  =  (-1/3)(4/1)  =  -4/3

-4/3 - 6                         Need to get a common denominator =  6.      6 = 18/3

=  -4/3 - 18/3

=  -22/3

"linear" means "in a straight line".

A linear equation is one, which when graphed, results in a picture of a straight line.

67.5% = .675

30.5% = .305

.675/.305 = about 2.213

When cosx = 0 , sin(cos(x)) will = 0

And cosx = 0  at  pi/2 and 3pi/2   (restricting ourselves to [0,2pi])

Find the invSin of both sides:

invSin( sin ( cos (x) ) ) = invSin( 0 )

cos(x)  =  0

Find the invCos of both sides:

invCos( cos(x) )  =  invCos( 0 )

x  =  90° or 270°  (and suitable multiples)

the answer to your answer is 0.777778