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3 years ago

Is 6th grade hard of so tell, me.

Mathematics

2 answers:

Amanda [17]3 years ago

6 0

I'm a sixth grader and don't worry if your a good student then it will be a breeze

mrs_skeptik [129]3 years ago

5 0

Yeah, but it gets better if you have someone sit and explain something you don't understand or if have your parents find a tutor if you needed help like I did

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What is the x-intercept of the line with the equation 8x-1/3y=16

Maslowich

One thing is you need to get x on one side and y on the other :)
8x-1/3y=16
Just like any equation you subtract 8x
8x-1/3y=16
-8x -8x
-1/3y=16-8x
Now you want y all alone. So you divide. To me I think you divide by -3. But you might want to check and divided by
by -1/3 (just in case)
-1/3y=16-8x
 -3
y=-5.33(3 is repeating) - 2.6666667x

I really do this help you out! :D

6 0

4 years ago

Find KJL (5x-2) (9x-62)

KiRa [710]

Answer:

45x^2-328x+124

Step-by-step explanation:

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3 years ago

I need help klcan you draw it , thanks

NARA [144]

Answer:

Step-by-step explanation:

I think it may look like this?

8 0

2 years ago

22: A 2.0 kg object moves along the x-axis under the influence of an unknown force. Its potential energy due to the force is U(x

aleksandr82 [10.1K]

Answer: a) -13.25 N, b) 1.78 m/sec

Step-by-step explanation:

Since we have given that

$U(x)=ax^4+bx^2$

where

$a=2.5\ J/m^4\\\\b=12\ J/m^2$

As we know that

$F=\dfrac{-dU}{dx}=-(4ax^3+2bx)$

Here, x= 0.5 m

So, it becomes,

$F=-(4\times 2.5\times (0.5)^3+2\times 12\times 0.5)=-13.25\ N$

Now, we need to find the velocity when it crosses the origin,

$F=mg\\\\F=m\dfrac{dv}{dt}\\\\F=mv\dfrac{dv}{dx}\\\\-(4ax^3+2bx)dx=mvdv\\\\\int\limits^{0.5}_0 {-(4ax^3+2bx)} \, dx =\int\limits {mv} \, dv\\\\ \dfrac{-4ax^4}{4}+\dfrac{2bx^2}{2}|_0^{0.5}=\dfrac{mv^2}{2}\\\\ax^4+bx^2|_0^{0.5}=\dfrac{mv^2}{2}\\\\2.5(0.5)^4+12(0.5)^2=\dfrac{2v^2}{2}\\\\0.15625+3=v^2\\\\3.15625=v^2\\\\\sqrt{3.15625}=v\\\\v=1.78$

Hence, a) -13.25 N, b) 1.78 m/sec

7 0

4 years ago

Jorge bought a crate of floor tiles for 95.94 the crate had 6 boxes of floor tiles each box contained 20 floor tiles

geniusboy [140]

The answer is

6 boxes x 20 tiles/box = 120 tiles

Price was $95.94

$95.94/120Tiles = $.7995/Tile = ~ 80 cents per til

7 0

3 years ago