11/02/13
Solve by the square root property. (-x^2+1)^2 = 4
how do i solve this?
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09/14/13
Find the x-int(if possible), y-int and axis of symmetry of the quadratic function. a) y=f(x)=x^2-6x+9 b)y=g(x)=x^2-x-2 c) y=h(x)=2x^2+x-6 d) y=j(x)=9-x^2
i dont know how to solve these
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08/10/13
A skier moving 6.0m/s forward begins to slow down, accelerating at -2.0m/s^2 for 1.5s. What is the skier's velocity at the end of the 1.5s?
Here's what I did but I don't know another way of solving this without using point slope form.
(0, 6)
(1.5, y)
y-y1=m(x-x1)
y-6=-2(1.5-0)
y-6= -3
y=3m/s
velocity =3m/s forward
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06/15/13
how do i simplify (2ab^-2c^-4)^-5 /(16a^-3bc^5)^2
forget how to do this
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06/13/13
a cylinder has a surface area of 402 cm^2. The height is three times greater than the radius. What is the height of the cylinder?
what i did:
402 = 2πr^2+2πr(3r)
how do i separate r?
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06/13/13
How is x+2 a factor of 5x+10?
I don't get how to factor 5x+10 to get a factor of x+2
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06/12/13
Find all integers k so that the trinomial can be factored. 3x^2+kx-1
i don't get what i'm supposed to do
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A cylinder of radius 6 cm and height 18 cm is full of water. What must be the height of a cone with radius 9cm to hold the same amount of water?
dont know how to do
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3
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06/09/13
suppose the radius and height of a cylinder are both doubled. by how much is the surface area increased, by how much is the volume increased
i dont get how to find the answer
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Earns hourly rate for 35h work and increased rate for overtime. He worked 39h and received $787.20, next worked 41h and received $844.80. hourly and overtime?
what is the rate for hourly and overtime
I don't know how to set up this question.
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3
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Abby's investment at 14% earned the same interest as Steve's which was $1500 less but at 18%. How much did steve invest?
How do i set up this question?
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04/08/13
write the equation of the line in standard form, that passes through the given point and is parallel to the given: P95,-20; 3y+1=-4x
what i did:
3y+1=-4x
slope=-4/3
(y+2=-4/3x-20)3
3y+6=-4x-20
4x+3y=-26
find the slope of 0.2x+2.3=1.4y
i dont know how to solve questions like these with decimals
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find the value of c so that the graph of 3x-c=2y has a y-intercept of (0,5)
How do you solve this?
04/07/13
rewrite the point-slope equation in standard form y-1 =1/3(x+2)
should i convert it to slope-int form first or expand it?? I'm not sure how to solve this
02/17/13
f(x) =2x-1 a) Determine the range value when the domain value is 0. b) Determine the domain value when the range value is 5.
I don't remember how to solve this!
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02/17/13
function g(x) =-x+3 a)Determine the range value when the domain value is -2 b)Determine the domain value when the range value is 0
I don't remember how to do the question
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01/27/13
A cylinder has the SA of 308 cm^2. The height is two times greater than the radius. What is the height of the cylinder?
I'm not sure how to solve this.
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01/27/13
Farmer Joe says "I'll trade with you 3 horses for 20 pigs, 4 frogs for 1 duck, 3 cows for 8 pigs and 35 ducks for 4 horses." how many frogs for 1 cow?
I forget how I can get the answer by converting all at once
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