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Alan3354 answered: 30963 problems
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Polygons/600755: Describe one way to find the measure of an interior angke of a regular 32 sided polygon. 1 solutions Answer 379463 by Alan3354(30983)   on 2012-04-18 19:46:35 (Show Source): You can put this solution on YOUR website! Describe one way to find the measure of an interior angke of a regular 32 sided polygon. ------------- The sum of exterior angles of all polygons is 360 degs Ext = 360/32 Int = 180 - Ext

Radicals/600756: whats the answer to 4 over square root of 3 1 solutions Answer 379462 by Alan3354(30983)   on 2012-04-18 19:42:03 (Show Source): You can put this solution on YOUR website! whats the answer to 4 over square root of 3 ----------- It depends on the question.

Equations/600693: 1. SQR(x+20)=x 2.SQR(10x)-(2)SQR(5x-25)=0 Solve each of the following. Check for extraneous solutions. What I know is; 1. x+20=x^2 That's as far as I know. I don't know how to check for extraneous solutions. 1 solutions Answer 379461 by Alan3354(30983)   on 2012-04-18 19:41:15 (Show Source): You can put this solution on YOUR website! 1. SQR(x+20)=x 2.SQR(10x)-(2)SQR(5x-25)=0 Solve each of the following. Check for extraneous solutions. What I know is; 1. x+20=x^2 That's as far as I know. I don't know how to check for extraneous solutions. ------------ x+20=x^2 (x-5)*(x+4) = 0 x = -4 x = 5 ------- Check each answer to see if it works. They both work --> no extraneous solutions. ====================== 2.SQR(10x)-(2)SQR(5x-25)=0 SQR(10x) = (2)SQR(5x-25) Square both sides 10x = 4*(5x - 25) etc

Trigonometry-basics/600726: hello tutors i really need help with this problem. what is the expression of tan (-220) is equivalent to ? 1 solutions Answer 379459 by Alan3354(30983)   on 2012-04-18 19:36:38 (Show Source): You can put this solution on YOUR website! what is the expression of tan (-220) is equivalent to ? -------- Add 360 --> 140 degs tan(140) =~ -0.8390996

test/600745: Solve for x 5x+3x 1 solutions Answer 379456 by Alan3354(30983)   on 2012-04-18 19:25:52 (Show Source): You can put this solution on YOUR website! Solve for x 5x+3x --------------- It's not an equation, so there's nothing to solve.

Trigonometry-basics/600742: what is the expression csc x ÷ cot x equivalent to ? 1 solutions Answer 379454 by Alan3354(30983)   on 2012-04-18 19:23:36 (Show Source): You can put this solution on YOUR website! what is the expression csc x ÷ cot x equivalent to ? -------------- = csc*tan

Triangles/600659: If the lengths of an isoselese are 6, 6 and 10 what is the angle of the obtuse angle? 1 solutions Answer 379421 by Alan3354(30983)   on 2012-04-18 16:45:03 (Show Source): You can put this solution on YOUR website! If the lengths of an isoselese are 6, 6 and 10 what is the angle of the obtuse angle? ------------ The 2 acute angles are arccos(5/6) =~ 33.557 degs Tha obtuse angle = 180 - 2*33.57 = ~112.885 degs

Trigonometry-basics/600653: graph y=3sin(2x)=1 i know tbe amplitude is 3 but the 2x is confusing me i understand when you have to graph for ex 3sin(x)+1 1 solutions Answer 379418 by Alan3354(30983)   on 2012-04-18 16:35:14 (Show Source): You can put this solution on YOUR website! graph y=3sin(2x)=1 --------- Too many equal signs

Pythagorean-theorem/600656: 108 square plus 81 square equals c squared. How do you solve this? 1 solutions Answer 379417 by Alan3354(30983)   on 2012-04-18 16:33:45 (Show Source): You can put this solution on YOUR website! 108 square plus 81 square equals c squared. How do you solve this? -------------- ------ Square them, add them, take the square root.

Travel_Word_Problems/600619: Michael runs 3.5 miles in 30 minutes. If he continues at this rate for 2 hours, determine his rate of change. 1 solutions Answer 379408 by Alan3354(30983)   on 2012-04-18 16:05:25 (Show Source): You can put this solution on YOUR website! Michael runs 3.5 miles in 30 minutes. If he continues at this rate for 2 hours, determine his rate of change. ---------------- It's not clear what you mean. Rate of change of what? His rate of change of position is 7 mi/hr. The rate of change of his speed is zero.

Triangles/600622: An isosceles triangle has vertices at (2,0), (6,0), and (4,8). What is the length of the altitude? 1 solutions Answer 379401 by Alan3354(30983)   on 2012-04-18 15:29:22 (Show Source): You can put this solution on YOUR website! 8, from the vertex between the 2 equal sides. ------- The other 2 are ~ 3.88057

Linear-equations/600582: Find the slope, if it exists, of the line containg the pair of points (7,5) and 8,-7) 1 solutions Answer 379383 by Alan3354(30983)   on 2012-04-18 13:49:20 (Show Source): You can put this solution on YOUR website! Find the slope, if it exists, of the line containg the pair of points (7,5) and 8,-7) ----------- Slope, m = diffy/diffx

Numbers_Word_Problems/600544: I am in both the 3 times and the 5 times-tables. The sum of my two digits is 3. What am I? 1 solutions Answer 379382 by Alan3354(30983)   on 2012-04-18 13:41:24 (Show Source): You can put this solution on YOUR website! 30

test/600502: If the hypotenuse of a right triangle is 13 and the length of the legs are 12 and 5, what is the measure of angle B 1 solutions Answer 379371 by Alan3354(30983)   on 2012-04-18 09:44:30 (Show Source): You can put this solution on YOUR website! duplicate

Triangles/600501: if the hypotenuse of a right triangle is 13 and the length of the legs are 12 and 5, what is the measure of angle B. 1 solutions Answer 379370 by Alan3354(30983)   on 2012-04-18 09:43:57 (Show Source): You can put this solution on YOUR website! if the hypotenuse of a right triangle is 13 and the length of the legs are 12 and 5, what is the measure of angle B. -------------- The smallest angle = arcsin(5/13) =~ 22.62 degs The other one is 90 - 22.62 degs I don't know which is labeled B.

Polynomials-and-rational-expressions/600468: Multiply . Simply if possible 1. (3a+2d) (c+5d) 2. (E-6f) (2q-3h) 3. (2x+5) (3x+3) 1 solutions Answer 379368 by Alan3354(30983)   on 2012-04-18 09:34:55 (Show Source): You can put this solution on YOUR website! Multiply . Simply if possible 1. (3a+2d) (c+5d) = 3a*(c+5d) + 2d*(c+5d) = 3ac + 15ad + 2cd + 10d^2 ------------------- 2. (E-6f) (2q-3h) 3. (2x+5) (3x+3) --------- Do 2 & 3 the same way. email via the Thank You note to check your work, or to assist

Pythagorean-theorem/600467: Using pythagorean theorem, what is the distance between "A(0,0) B(-3,4) 1 solutions Answer 379367 by Alan3354(30983)   on 2012-04-18 09:30:35 (Show Source): You can put this solution on YOUR website! Using pythagorean theorem, what is the distance between "A(0,0) B(-3,4) ---------- It's the 3, 4, 5 right triangle.

Systems-of-equations/600495: Evaluate: | 0 0 7 0 | | 2 1 -3 4 | | 3 -2 2 5 | |-1 5 2 2 | 1 solutions Answer 379366 by Alan3354(30983)   on 2012-04-18 09:23:29 (Show Source): You can put this solution on YOUR website! The determinant is 63

test/600470: All steps please! 1 solutions Answer 379365 by Alan3354(30983)   on 2012-04-18 09:19:13 (Show Source): You can put this solution on YOUR website! All steps please! ------------ Left, right, left, right ??

Circles/600487: a pizza is 30 cm in diameter. it is cut into 12 equal pieces. what is the area of one piece? 1 solutions Answer 379364 by Alan3354(30983)   on 2012-04-18 09:17:11 (Show Source): You can put this solution on YOUR website! a pizza is 30 cm in diameter. it is cut into 12 equal pieces. what is the area of one piece? --------- r = 15 cm Each piece =

Trigonometry-basics/600374: simplify the expression: sin5pie/3 cos5pie/3-cos5pie/3 sin pie/3 1 solutions Answer 379300 by Alan3354(30983)   on 2012-04-17 22:59:25 (Show Source): You can put this solution on YOUR website! simplify the expression: sin5pie/3 cos5pie/3-cos5pie/3 sin pie/3 ---------- It's the Greek letter pi, not the dessert, pie.

Travel_Word_Problems/600380: A plane travels from LA to NY at an average speed of 600 mph. On the way back from NY to LA it travels at an average speed of 400 mph. What is the average speed of the entire trip? 1 solutions Answer 379298 by Alan3354(30983)   on 2012-04-17 22:57:05 (Show Source): You can put this solution on YOUR website! A plane travels from LA to NY at an average speed of 600 mph. On the way back from NY to LA it travels at an average speed of 400 mph. What is the average speed of the entire trip? -------------- Avg speed for a RT, or 2 segments of equal length is 2*600*400/(600 + 400) = 480 mph ------------ The distance is not relevant.

Polynomials-and-rational-expressions/600308: how to solve 12x squared minus 75 1 solutions Answer 379262 by Alan3354(30983)   on 2012-04-17 21:28:12 (Show Source): You can put this solution on YOUR website! how to solve 12x squared minus 75 --------------- It's not an equation, so there's nothing to solve.

Expressions-with-variables/600287: Isolate P in the formula P(Q+6)=P-12 1 solutions Answer 379250 by Alan3354(30983)   on 2012-04-17 21:12:45 (Show Source): You can put this solution on YOUR website! Isolate P in the formula P(Q+6)=P-12 ----- P(Q+6)=P-12 PQ+6P - P = -12 PQ + 5P = -12 P(Q+5) = -12 P = -12/(Q+5)

logarithm/600323: log16 32+x=3? 1 solutions Answer 379247 by Alan3354(30983)   on 2012-04-17 21:09:24 (Show Source): You can put this solution on YOUR website! duplicate

Square-cubic-other-roots/600329: I have the question 75 squared + 65 squared = c Squared and I rounded it to get 17 and im wondering if I did that correctly? 1 solutions Answer 379246 by Alan3354(30983)   on 2012-04-17 21:08:47 (Show Source): You can put this solution on YOUR website! I have the question 75 squared + 65 squared = c Squared and I rounded it to get 17 and im wondering if I did that correctly? ------------ Did you solve for c? How did you get 17? c =~ 99.247

logarithm/600325: How do you solve log16 32=x+3? ive tried 16^x+3=32 1 solutions Answer 379238 by Alan3354(30983)   on 2012-04-17 20:53:58 (Show Source): You can put this solution on YOUR website! How do you solve log16 32=x+3? is a constant --------- =~ 1.25 x =~ -1.75

Quadratic-relations-and-conic-sections/600313: 13xx+13yy=49. I need to decide if it is an ellipse, parabola, hyperbola, or a circle. Once I decide I need to put into the right equation and be able to graph it. 1 solutions Answer 379237 by Alan3354(30983)   on 2012-04-17 20:50:18 (Show Source): You can put this solution on YOUR website! 13xx+13yy=49. I need to decide if it is an ellipse, parabola, hyperbola, or a circle. Once I decide I need to put into the right equation and be able to graph it. ---------------- I think you mean A circle, center at the Origin, radius sqrt(49/13)

Travel_Word_Problems/600260: How long will it take a ship traveling 35 mph to go 2.5 miles? Thank- you. 1 solutions Answer 379232 by Alan3354(30983)   on 2012-04-17 19:59:27 (Show Source): You can put this solution on YOUR website! How long will it take a ship traveling 35 mph to go 2.5 miles? -------- d = r*t t = d/r

Surface-area/600147: Area of a triangle A=8.5yds 6.1yds 1 solutions Answer 379209 by Alan3354(30983)   on 2012-04-17 16:44:32 (Show Source): You can put this solution on YOUR website! Area of a triangle A=8.5yds 6.1yds ------------ I don't know what that means.

Geometry_Word_Problems/600149: Dolores is on a bridge that is 45 feet above a lake. She sees a boat at a angle of depression. What is Delores’s approximate horizontal distance from the boat? A. 26 feet B. 32 feet C. 90 feet D. 78 feet 1 solutions Answer 379207 by Alan3354(30983)   on 2012-04-17 16:29:25 (Show Source): You can put this solution on YOUR website! Dolores is on a bridge that is 45 feet above a lake. She sees a boat at a angle of depression. What is Delores’s approximate horizontal distance from the boat? ----------------- d = horiz distance tan(angle) = 45/d d = 45/tan(angle) feet