用戶48836

[匿名]

回覆: 4

2020-11-01 12:53 pm

prove that a + b ≤ |a| + |b|?

Mcc

回覆: 4

2020-08-25 11:04 pm

Factor Theorem problem?

[匿名]

回覆: 3

2020-08-21 10:16 pm

surd qns, hopefully can seek help help?

[匿名]

回覆: 33

2020-08-21 10:52 pm

why is 110 divisible by 10?

[匿名]

回覆: 3

2020-08-17 3:30 pm

In how many different ways can 7 boys and 7 girls be seated alternatively in a row from left to right?

[匿名]

回覆: 2

2018-10-01 3:22 am

A,B is square matrices of the order n. Prove that if A and B are skew symmetric, and AB+BA = 0 then AB is also skew symmetric?

[匿名]

回覆: 3

2018-09-09 6:28 pm

Are these statements true or false (Mathematics) ?

[匿名]

回覆: 9

2018-08-24 11:53 pm

Simplify sin(x/2)-cos(x/2)=1?

[匿名]

回覆: 6

2018-08-24 8:22 am

Two balls are drawn simultaneously at random; 6 red, 4 white & 5 blues. What is P(one is white and one is red)?

[匿名]

回覆: 2

2018-03-11 3:14 pm

The mean rent of an apartment is $780. You randomly select 9 apartments. Compute the probability that the mean rent is less than $825.?

[匿名]

回覆: 3

2017-10-30 6:02 am

Can you solve this logartihm problem?

[匿名]

回覆: 4

2017-10-29 4:53 pm

Make F the subject. C=5 (F-32)/9 give answer in form aC+b/c where a,b,c are all positive integers.help?

[匿名]

回覆: 6

2017-10-15 7:50 am

Can you solve these math problems?

[匿名]

回覆: 5

2017-09-11 11:32 am

is 1/x-y the same thing as 1/x - 1/y?

[匿名]

回覆: 6

2017-08-30 12:22 pm

An airplane flies at 800km/h for one-third of its flight and averages 700km/h for the rest. What is the average speed, in km? Show working?

[匿名]

回覆: 6

2017-08-30 5:32 pm

remainder when 2 to the power of 220 is divided by 7. Please show simple step by step working that a twelve year old would understand,thanks?

[匿名]

回覆: 2

2017-08-16 10:35 am

Any Help ??? George is loading freight into an elevator. He notices that the weight limit is 1000 lbs. He knows that he weighs 210 lbs.?

[匿名]

回覆: 2

2017-05-09 4:39 am

F varies jointly as q1 and q2 and inversely as the square of d. if F =45 when q1 = 15, q2=15, and d=5, find F when q1=8, q2=4, and d=4?

[匿名]

回覆: 4

2017-05-08 9:40 am

Math trouble help 9/x+5 - 6/ x-5?

[匿名]

回覆: 3

2017-05-06 3:00 am

Can you only do trigonometry with right triangles? Or can you do it with other types of triangles as well?

[匿名]

回覆: 1

2017-04-29 2:42 am

Algebra 2.?

[匿名]

回覆: 2

2017-04-27 11:04 am

The error function, erf(x), is defined by the following?

[匿名]

回覆: 4

2017-04-07 1:22 pm

Am I screwed for calc 1?

[匿名]

回覆: 2

2017-03-31 9:43 am

5600/((pi*d^2)/4)=15000 for d show steps please?

[匿名]

回覆: 4

2017-03-29 6:46 pm

Maths answer?

[匿名]

回覆: 2

2017-03-25 6:10 am

16^(x+2) = 8^-x? Solve for x?

[匿名]

回覆: 4

2017-03-24 10:44 am

Does this series converge or diverge? I know 1 diverges, but what about 0; my guts are telling me it converges.?

[匿名]

回覆: 1

2017-03-19 6:49 am

probability question?

[匿名]

回覆: 3

2017-03-10 11:50 am

How many inches is 1080x1920px?

Smile

回覆: 3

2017-03-10 11:54 am

Maths help, thanks?

[匿名]

回覆: 6

2017-03-07 10:00 pm

is the number 3 still relevant?

[匿名]

回覆: 3

2017-02-21 7:25 pm

Find the value of x, x^15 = 32768.. Please help?

[匿名]

回覆: 3

2017-02-15 7:38 am

How do I find the maximum area of the rectangle?

[匿名]

回覆: 13

2017-02-11 3:40 am

a bag has 5 red marbles, 6 blue marbles, and 4 black marbles.?

[匿名]

回覆: 2

2017-01-20 5:20 pm

Math word problem help?

[匿名]

回覆: 4

2017-01-03 7:01 am

Discriminant of 2x2-4x-6=0?

[匿名]

回覆: 6

2016-12-22 5:36 am

SAT question?

[匿名]

回覆: 1

2016-11-01 6:36 pm

Will the determinant of a matrix with zeros in diagonal always be zero even after row operations?

mhiaa

回覆: 4

2016-10-31 5:01 am

Please help an idiot?

[匿名]

回覆: 3

2016-09-28 4:00 am

A fellow classmate mistakenly thinks that cos(45°) = 0.5 and sin(45°) = 0.5. Explain why he might think this and why it is not possible.?

[匿名]

回覆: 2

2016-09-23 10:48 pm

Use the midpoint formula to determine the midpoint of the segment with endpoints A(-5, 12) and B(-8, 5).?

[匿名]

回覆: 2

2016-09-23 10:34 pm

Write the equation of the line that goes through the point (-4, 5) and is perpendicular to the given line: y = 4x - 1.?

[匿名]

回覆: 2

2016-09-10 2:29 am

integrate e^(-3x) tan(e^(-3x)) dx?

Kai Wai

回覆: 2

2016-08-16 8:27 am

If A is proportional to sinθ (0<θ<π/2) , then is A also proportional to θ ? Thanks!!!?

[匿名]

回覆: 2

2016-08-08 1:38 am

What maths is involved in cryptography?

[匿名]

回覆: 4

2016-08-03 6:45 am

Easy algebra 1 word problem that I don't get please help?

[匿名]

回覆: 7

2016-07-31 5:16 pm

Use a double-angle formula to rewrite the expression. 14 sin^2 x − 7?

[匿名]

回覆: 6

2016-07-31 4:12 pm

A man is 6 feet 2 inches tall. To find the height of a tree, the shadow of the man and the shadow of the tree were measured.?

[匿名]

回覆: 4

2016-07-30 3:24 am

Hello, How can I factor this: 3x^2+16x+5 I tried several times, but still no solution! Thank you?

[匿名]

回覆: 2

2016-07-28 8:32 pm

INTEGRATE 9^x...?