Simplify 3√125. Thanks!

Answers

Answer 1

Answer: if you mean
3 times square root of 125 then go to AAA
if you mean ∛125 then go to BBBB

AAAAAA
3 times √125=3 times 5√5=15√5

BBBBBBB
∛125=5 or -5

Answer 2

Answer: 3 divide 125
3 divide 25 x 5
3 x 5 divide 5

equal 15/5 or 33.541019

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2x + y = −33x + 2y = −8
1,060,060 in expanded form

Write a unit rate for the situation. Round to the nearest hundredth if necessary.driving 140 mi in 2 h 45 min

Answers

a unit rate for this one could be in mph (miles per hour)

140/2.75 (45 mins is 0.75 of an hour)

50.91 mph

How do I solve this?

Answers

area=LW
perimiter=2(L+W)

aera=36
P=25

36=LW
25=2(L+W)

25=2(L+W)
divide both sides by 2
12.5=L+W
minus W
12.5-W=L

sub for L
36=W(12.5-W)
36=12.5W-W^2
minus (12.5W-W^2) both sides
0=W^2-12.5W+36
use quadratic formula

if you have
ax^2+bx+c=0
x= $\frac{-b+/- \sqrt{b^(2)-4ac} }{2a}$

a=1
b=-12.5
c=36

W= $\frac{-(-12.5)+/- \sqrt{(-12.5)^(2)-4(1)(36)} }{2(1)}$
W= $(12.5+/- √(156.25-144) )/(2)$
W= $(12.5+/- √(12.25) )/(2)$
aprox
W=8 or 4.5

sub
12.5-W=L

12.5-8=L=4.5
12.5-4.5=L=8
either way

the dimentions are 4.5cm by 8 cm

$\sf\nP=2L+2W=25 \sf\nA=LW=36\n\nFind\ the\ value\ of\ one\ of\ the\ variables\ in\ terms\ of\ the\ other. \sf\n36=LW\nW= (36)/(L)\n\nSubstitute.\nP=25\n=2L+2W\n=2L+2( (36)/(L) )\n=2L+ (72)/(L) \n\nMake\ them\ have\ a\ common\ denominator.\n2L+(72)/(L)\n= (2L)/(1) +(72)/(L)\n=(2L^2)/(L)+ (72)/(L) \n= (2L^2+72)/(L) \n\nMultiply\ L\ on\ the\ other\ side.\n25L=2L^2+72\n0=2L^2-25L+72\n\nUse\ the\ quadratic\ formula.\n L=\frac{-b+/- \sqrt{b^(2)-4ac} }{2a}\nax^2+bx+c$
$a=2\nb=-25\nc=72\n\n L=\frac{-(-25) +/- \sqrt{(-25)^(2)-4(2)(72)} }{2(2)} \n =(25+/- √(625-576) )/(4) \n =(25+/- √(49) )/(4)\n =(25(+/-)7)/(4) \n\n\sf\ We\ now\ have\ two\ options.\n(1) L=(25+7)/(4)= (32)/(4) =8\n(2)L=(25-7)/(4)= (18)/(4) =4.5\n\n\sf\ Either\ W\ is\ 8\ and\ L\ is\ 4.5\ or\ W\ is\ 4.5\ and\ L\ is\ 8.\ It\ doesn't\ matter.\n\n{\boxed{The\ dimensions\ are\ 8\ cm\ by\ 4.5\ cm.}$

Which is an example of an experiment?

Answers

Answer:

Step-by-step explanation:

Its trying something new and that is basically what an experiment is.

Answer:

THE ANSWER IS D

Step-by-step explanation:

What is the value of 4^6 over 4^6 ?

Answers

Remark
If you know the answer to

6/6 then you know the answer to 4^6 / 4^6

Both are equal to one. You could expand 4^6 to get a numerical answer.

4^6 = 4096

4096 / 4096 = 1

Edit
See comment posted by the asker.
Well you could do it one of 2 ways.

4 * 4 * 4 * 4 * 4 * 4
4 * 4 * 4 * 4 * 4 * 4 * 4 * 4 You can do the cancellation to get

1
4*4

1/16 That's one way

or

you could do this as

4^6
4^8

1/(4^ (8 - 6) ) = 1/4^2
1 / 4^2 = 1/16 <<<<<< answer

Rule
When the bases are the same and the powers are different and you are dividing you can always subtract the powers.

isn't it just one since
_4^6_
4^6
simplifies to _4096_
4096
which equals one?

bicyclist Mario Cipollini pedaled one stage of the 1999 tour de France in about 3.9 hours If he traveled about 195 kilometers what was his average speed in kilometers per hour

Answers

v=195/3.9=50 km/h

is the answer

Last year, there were 380 students at woodland middle school.This year, the student population will increase by 5%. What will be the school's increased student population

Answers

380 is 100%
this year will increase 5%
100% + 5 % = 105% = 1.05
1.05 * 380 = 399

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