3 years ago

If x=-3,what is the value of |x-4|-x^2

Mathematics

1 answer:

Shtirlitz [24]3 years ago

5 0

(Answer is in photo):

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The volume of a cylinder of radius 3r and height 6r is given by TT(3r)2(6r). Simplify the expression.

OLga [1]

Answer: $\pi 36r^{2}$

Step-by-step explanation:

ALRIGHT ARE YOU READY FOR EPIC MATH TIME?

because i know i am. so lets get this bread.

WATCH: we have $\pi (3r)2(6r)$

interesting... that first character is called pi. maybe i should have said, "lets get this pi".

so now lets do some algebra. i am going to work from right to left. lets multiply 6r by 2. that gives us 12r. now we have... $\pi (3r)(12r)$

WE ARE MAKING EPIC PROGRESS, AREN'T WE?

lets multiply 12r by 3r. then we have....

$\pi 36r^{2}$

notice how i multiplied 12 by 3 and also r by r (which gives 36 and $r^{2}$ respectively)

so your simplified expression is: $\pi 36r^{2}$

6 0

3 years ago

The line plots show the results of a survey of 12 boys and 12 girls about how many hours they spent reading for pleasure the pre

lana66690 [7]

Answer:

The range for boys is 0-12 and the mean is 5.1

The range for girls is 2-8 and the mean is 5.3

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

PLZ HELP FAST!!!! WILLL GIVEE BRANILIESTTTTT!!Which of the following best describes the pyramid represented by this net? square

DedPeter [7]

Answer:

How can send/put/mark someone braniliest

7 0

3 years ago

Which of the following would you add to each side of the equation x-9=12 to get the variable by itself?

VLD [36.1K]

X-9=12
x-9+9=12+9
You need to add 9 to each side of the equation.
x=21

6 0

3 years ago

Only number 7 please hurry

Stella [2.4K]

Answer:

pretty sure its B and C

Step-by-step explanation:

because they have a common multiplier of 2.5 and are similar triangles

18 x 2.5 = 45

20 x 2.5 = 50

4 0

3 years ago