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3 years ago

How can you tell which point represents the greater number?

Mathematics

1 answer:

vodka [1.7K]3 years ago

6 0

Answer:

Point B represents the greater number because it is farther to the right.

Step-by-step explanation:

the greater numbers are to the right plz give me brainlest

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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

Combine the like terms to create an equivalent expression 3y+6-y

FinnZ [79.3K]

Answer: 3y-y+6=2y+6

Step-by-step explanation:

3y-y =2y and that leaves only 6 to add on . And your answer is 2y+6

6 0

4 years ago

Find the nonpermissable replacement for the variable in this expression 3x over 5x+2

kotegsom [21]

5x + 2 is a denominator.
A denominator cannot equal zero since division by zero is undefined.
Set the denominator equal to zero and solve for x to find which value of x makes the denominator zero.

5x + 2 = 0

5x = -2

x = -2/5

The non-permissible replacement for the variable is -2/5.

5 0

4 years ago

Round 737.88 to the nearest tenth place?<br>

LenKa [72]

Answer:

737.9

Step-by-step explanation:

8 is the hundredth place in 737.88, and 8 rounds up. So, the answer is 737.9

4 0

4 years ago

Read 2 more answers

5 1/6 minus 1 2/3 PLZ HELP NOW<br>