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Division of rational numbers

8. Evaluate the line integral R
C
(xy + y + z)ds along the curve r(t) = 2ti + tj + (2 − 2t)k, 0 ≤ t ≤ 1

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How can I solve this question step by step

If the annual increase in the population be 20% and the present population be 10,000. What will be the population after 3 years hence?

a.16000

b.17280

c.14400

d.17820

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If 15 is added to a number then it is increased by 20%. Find the Original number?

a. 55

b.65

c.75

d.90

e. None of the above

General Aptitude question from gate.

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\left[\frac{5}{8}+3\right]+\left[\frac{10}{8}+3\right]+\left[\frac{15}{8}+3\right]+...+\left[\frac{40}{8}+3\right] 

writing summation series in sigma notation

What is law of gravitation

Solve for d.

d + 2 = 98

d = ?

1. Please help me twitch this problem

s=t/p+q solve gor q

q(p)=2.5/p+3.3; q'(5)

find the length of longest pipe that can be carried level around a right angle corner of the two intersecting corridors are the width of 4 feet and 6 feet by calculus 

6×3÷3+2-4÷2×6=

Graph the new position of each point using the translation given.

1. 8 units right and 5 units down

2. A hot-air balloonist, rising vertically with a constant velocity of magnitude 5.00 m / s, releases a sandbag at an instant when the balloon is 40.0 m above the ground. After the sandbag is released, it is in free fall.

(a) Compute the position and velocity of the sandbag at 0.250 s and 1.00s after its release.

(b) How many seconds after its release does the bag strike the ground?

(c) With what magnitude of velocity does it strike the ground?

(d) What is the greatest height above the ground that the sandbag reaches?

G(q)= (1+q^-1)^2

find G'(q)

please explain and show all work

8.  It takes 250 cal to raise the temperature of a metallic ring from 20C to  30C. If the ring has a mass of 85g, what is the specific heat of the metal? 

   ____ cal/gC

A. A bookmark has a perimeter of 28 centimeters. Its area is 33 square centimeters. What are the dimensions of the bookmark?

B. Each side of a square classroom is 6 yards long. The school wants to replace the carpet in the classroom with new carpet that costs $50.00 per square yard. How much will the new carpet cost?

C. The sum of two numbers is 68. The difference of the two numbers is 6. What are the two numbers?

A decision tree is a:

a) matrix representation of alternatives.
b) graphical representation of alternatives.
c) algebraic representation of alternatives.
d) tabular representation of alternatives

a particle moving a long a straight line with acceleration function a(t) = 3t + 8, initial v(0) = -2 & initial position s(0) = 1.

What is the velocity at any time t? and what is the position of the function at any time t?

Find the volume of a cube if one side is 16cm.

How many bones are in our body?

1:  206

2:  390

3:  208

1. Use substitution to determine which choice is the solution of the following system of equation.

1. Solve the following system of equations by using substitution.

1. Use substitution to determine which choice is the solution of the following system of equations.

Solve the system of equations by the substitutionmethod
-x+3y=6
-3x+8y=17

Solve the following system of equations by the substitutionmethod.

x - y = 0

x - y - 2 = 0

What is the solution set?

1. Use substitution to determine which choice is the solution of the following system of equation .

1. Please help me thank you