can do questions where N and E are small but I can not understand this example my lecturer has done where E=39423 AND N=46927 I cannot workout how he got 21166. How do you do this when the numbers are so large? Also at the end he set 21166=1x26^3 +5x26^2+8x26+2 I can't see how he broke the number down into multiples of 26 in order to get the... show more
14 mins ago
Be the first one to answer
• Edit
• We are experiencing some problems, please try again.
• ### A conical reservoir is 12ft deep and the radius at the brim is 3ft. If water is being poured at 2cubic ft per min, how fast is the radius?

at the water level increasing when the volume of the water in the reservoir is 9pi/2 cubic ft? I got 1/18pi but the answer is supposed to be 2/9pi
19 mins ago
• Edit
• We are experiencing some problems, please try again.
• ### Are there non-trivial solution for these homogeneous systems? X1 + 2X2 - 3X3 =0 2X1 + 5X2 + 2X3 = 0 3X1 - X2 - 4X3 = 0 7X1 + 8X2 - 8X3 =0?

20 mins ago
Be the first one to answer
• Edit
• We are experiencing some problems, please try again.
• ### Analytic Geometry problem?

3- I am not understanding how the answer is C instead of D. 4- the given equation in the question is line r and option D says line r is parallel to line of equation y=-2x ,, Didnt understand how.
31 mins ago
Be the first one to answer
• Edit
• We are experiencing some problems, please try again.
• ### Calculus question?

A balloon rises at a rate of 4 meters per second from a point on the ground 40 meters from an observer. What is the rate of change of the angle of elevation (in rad/sec) when the balloon is 40 meters above the ground?
32 mins ago
• Edit
• We are experiencing some problems, please try again.
• ### A point P moves along the graph ((x^2) +4)y=8 so that its x-coordinate is changing at a rate of 3 units per second.?

At what rate is its y-coordinate changing when x=2?
36 mins ago
• Edit
• We are experiencing some problems, please try again.
• ### Find the coordinates of a point on the x-axis if the sum of the squares of its distances from (1,2) and (4,3) is a minimum?

1 hour ago
• Edit
• We are experiencing some problems, please try again.
• ### A rectangular plot of land is to be enclosed by a fence and then divided into 2 plots by another fence joining the midpoints of the 2?

opposite sides. If the total fenced area is to be 24 square yards, what dimensions will minimize the length of the fence used? It's supposed to be 6 x 4, but I can't figure out how to get there... Please help! Thanks so much!!!
1 hour ago
• Edit
• We are experiencing some problems, please try again.
• ### 4. Find the products in the trigonometric form: (a) (2 + i)(√3 + i√2)(√3 − i√2) (b) (1/2− i((√3)/2)^7?

2 hours ago
• Edit
• We are experiencing some problems, please try again.
• ### Solve over the set of complex numbers: (a) z^3 = i (b) z^5 = −i (c) z^2 = √(3) + i (d) z^3 − 9 = 0 (e) z^6 − 7iz^3 + 8 = 0?

2 hours ago
• Edit
• We are experiencing some problems, please try again.
• ### 2. Find the trigonometric form for the complex numbers: (a) z =√(3) + i (b) z = 5 (c) z = −√(2) − i√(2)?

2 hours ago
• Edit
• We are experiencing some problems, please try again.
• ### 1. Find all complex number z = x + iy such that: (a) |z| = 1 (b) π ≤ tan−1 (y/x) ≤ 3π/2?

2 hours ago
• Edit
• We are experiencing some problems, please try again.
• ### Help me with this math problem now.. show your work.?

The digits 2, 4, ,6, and 8 are placed in the following multiplication problem so the resulting product is as large as possible. Which digit must be placed in the units pace of the smaller factor? Show your work. 🤔 ▢▢*▢▢
3 hours ago
• Edit
• We are experiencing some problems, please try again.
• ### Find the area of the triangle:?

3 hours ago
• Edit
• We are experiencing some problems, please try again.
• ### The area of a triangle is33 square units.If the base is 5 units more than3 times the height,then find the length of the base and the height.?

3 hours ago
• Edit
• We are experiencing some problems, please try again.
• ### The store buys in batches of 100, and pays the company \$800 for each batch of 100 sold. The cost for the company to make..?

3 hours ago
• Edit
• We are experiencing some problems, please try again.
• ### Math help?

In △ABC, m∠A = α, m∠B = β, m∠C = γ. AB = c, AC = b, BC = a. Find the remaining parts of each triangle if the following parts are given. 1) a=21.4, c=4.28, β=86.3º 2) a=103, c=159, γ=104º
3 hours ago
• Edit
• We are experiencing some problems, please try again.
• ### Doesn't f equal Ma?

4 hours ago
• Edit
• We are experiencing some problems, please try again.

5 hours ago
• Edit