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Luda [366]
3 years ago
6

Click on the TRUE statements. (can be more than 1)

Mathematics
2 answers:
ale4655 [162]3 years ago
6 0

Answer:

Answers 2, 3, and 5 are correct

Step-by-step explanation:

<u>BELOW ARE THE EQUATIONS FOR EACH:</u>

2.) D=M÷V

3.) M=D*V

5.) V=M÷D

Sedbober [7]3 years ago
5 0

The true statements are:

2) To find density, divide the mass by the volume.

3) To find mass, multiply the density times the volume.

5) To find volume, divide the mass by the density.


The equation for density is D=m/V (where D is density, m is mass, and V is volume).  

To find the equation for mass, solve for the m variable in the equation by multiplying both sides by V.  The equation is m=DV.

To find the equation for volume, solve for the V variable in the equation by multiplying both sides by V and then dividing both sides by D.  The equation is V=m/D.


Hope this helps!!

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Evaluate the line integral, where C is the given curve. (x + 4y) dx + x2 dy, C C consists of line segments from (0, 0) to (4, 1)
zubka84 [21]

Parameterize the line segments (call them C_1 and C_2, respectively, by

\vec r_1(t)=(1-t)(0,0)+t(4,1)=(4t,t)

\vec r_2(t)=(1-t)(4,1)+t(5,0)=(4+t,1-t)

both with 0\le t\le1. Then

\displaystyle\int_C(x+4y)\,\mathrm dx+x^2\,\mathrm dy

=\displaystyle\int_0^1\bigg((4t+4t)(4)+(4t)^2(1)\bigg)\,\mathrm dt+\int_0^1\bigg((4+t+4(1-t))(1)+(4+t)^2(-1)\bigg)\,\mathrm dt

=\displaystyle\int_0^115t^2+21t-8\,\mathrm dt=\boxed{\frac{15}2}

6 0
3 years ago
Expand and simplify (2x^2)(4x+5)-8x(x^2-2)
Olegator [25]
The answer would be 10x^2 + 16x

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5 0
3 years ago
During the summer, you work 30 hours per week at a gas station and earn $8.75 per hour. You also work as a landscaper for $11 pe
Lena [83]
You need to work about 12.5 hours because from your gas station job, since you work 30 hours every week, times that by 8.75$ which equals 262.5$ at the end of the week, so subtract 262.5 from 400 which is 137.5, then you need to dived that by 11 since its $ per hour, after doing that you get 12.5 hours, so you would have to work 12.5 hours at your landscaper job
8 0
3 years ago
Nind reeds
Usimov [2.4K]

Answer:

42 gallons.

Step-by-step explanation:

count every inch *2 and calculate gallons

3 0
2 years ago
I need help with this!
lisabon 2012 [21]

Answer:

angle j = 90

angle k = 29

angle L = 61

Step-by-step explanation:

180 = 90 + (4x-19) + (5x+1)

90 = 9x - 18

108 = 9x

x = 12

3 0
3 years ago
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