All Answers 358509 Answers

Guest:

a gas tank holds 18 gallons and is 3/4 full before a trip and after the trip the tank was 1/3 full how many gallons were wasted

debby:

what symbol on the calculator shows the power of the number

Quote:

4x^2+24x+32

Cody:

b/-3 +12= 23 Solve for b

732fanarmham:

:D 86-(-33*-7-|-73|)

Gabriella1D1502:

Leah is buying curtains for her bedroom window. She wants the curtains to hang from the top of the window to the floor. The window is 4 feet high. The bottom of the window is 2.5 feet above the floor. What curtain length should Leah buy?????

Gabriella1D1502:

Olivia ties 2.5 feet of ribbon onto one balloon. How many yards of ribbon does Olivia need for 18 balloons?

Stu:

a) How do I simplify 27^ -1x^ -1 / y^ -2?

27^-1x^-1 / y^-2 = y² / 27x

Please note:I used the 'sup' button above the smilies to write this.

b) What are rules for + - / * when you've a negative ^ -1 on a fraction bottom?
I am not sure what you mean but if the +- is not a part of the index you leave it alone.

c) As above when the ^ -1 is on top, is there time not to flip it or it cannot be flipped?
Well, they would all have to be factors in the numerator and the denominator.
for example
140206 neg indices.JPG

d) Does simplify have the ability to remove all negative powers in all equations?
Yes, I guess so - but it might be long and messy.

Princess Sophie E:

A ladder rests with its foot on smooth horizontal ground and its upper end against a smooth vertical wall.
The ladder is uniformed and weighs 300N and inclined to the wall at an angle x. What horizontal force must be applied to the foot of the ladder to prevent it from slipping if
a) x=30degrees
b) x=arctan(3/4)

AngelIshtar7:

Ranges from 6.57 to 7.93. Write the desired point ± tolerance statement. How do I do this?

debby:

what symbol on the calculator shows the power of the number