1. Mathematics
(6 - 2) - (6 - 9) / (-3 + (-3))
- 3 1/2.
- 4.
- 4 1/2.
S
SirPitz asked · 5 Mar 2026
Isn't this - 7/6?
1. Mathematics - Q&A
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1. Mathematics
What is 10! / 8!?
- 1.25, because 10/8 = 1.25, dividing the arguments of the factorials gives 1.25 which is not how factorial division works
- 2, because 10 - 8 = 2, subtracting the factorial arguments gives the difference but not the ratio of factorials here
- 90, because 10!/8! = 10 x 9 = 90, the remaining factors after cancellation are 10 and 9 which multiply to 90
S
Stavros asked · 4 Mar 2026
What is 10! / 8!?
1. Mathematics
What is the area of the trapezium shown?
- 24 cm^2
- 27 cm^2
- Area cannot be calculated from information given.
E
Elia asked · 12 Feb 2026
but after have analized the drowning, the real drowing, after some calculations is different from that...the left side, is inclined whit negative value (le lef side gone to the right of the upper base, like that ________ \ \____________\) because the right angle is about 62.7 degrees so the long of the base of that triangol is little above 2.1, 7-2.01 =4.99 that means what I have wrote
1. Mathematics
Find the curved surface area of a cylinder diameter 20cm and length 10cm.
- 200 cm^2
- 628 cm^2
- 400 cm^2
O
omar.alrayes asked · 23 May 2012
Please write your comment here.
Elia: Surface area of cylinder is equal to circumference moltiply by height. So C=2*pi*r=d*pi and eight is h, so Surface=2*pi*r*h=d*pi*h=20*3.14*10=628
1. Mathematics
What is the ratio of 5 feet to 30 inches?
- 1 : 6
- 5 : 3
- 2 : 1
S
Stun asked · 15 Nov 2015
How can I do that??
Elia: You need first to convert feet to inch so 5 feet in 60 inch because 1 feet it's 12 inch so 5x12=60 (in metric system you need do divide 1 feet by 1 inch so 1feet=30.48cm 1inch=2.54cm so 30.48/2.54=12, now you moltiply 12 x 5 = 60). Than the task ask you what is the ratio of 5 feet to 30 inch so, you know that 5 feet is 60 inch, so the ratio of 60 inch to 30 inch is 60/30 = 2:1
1. Mathematics
A right angled triangle has sides 6cm, 8cm and 10 cm. What is the sine of the angle between the 8cm side and the 10 cm side?
- 0.6
- 0.75
- 0.8
W
Wisedavy asked · 13 Mar 2023
How do i go about it
riccio_ruffo_44: you need to divide the opposite side/ adiacent side (6/10=0.6)
1. Mathematics
In a flight control system, the control cable is allowed an elongation of 3% due to wear. The length from the manufacturer is 78cm, what is its maximum used length?
- 2.34 cm
- 78.34 cm
- 80.34 cm
S
sidewinder asked · 7 Mar 2024
Why isn't 80.34cm? I didn't understand it.
Eddz25: elongation is the process of lengthening something, thus the length of the cable is increased by 3%. therefore 3% of 78 is 2.34. The new length is 78+2.34 = 80.34cm
1. Mathematics
What is 738 in binary coded decimal?
- 1011110010
- 111100010
- 11100111000
D
D.kerec asked · 15 Oct 2016
101110001 how this isnt right?
Eddz25: the anser is wrong, it should be 1011100010
1. Mathematics
The surface area of a cone whose height is 10 cm and diameter is 8 cm is
- 40pi cm2 .
- 80pi cm2.
- 120pi cm2 .
G
giovanni asked · 11 Apr 2017
how?? the lateral surface of a cone??
Eddz25: answer is wrong, it should be 59 pi
1. Mathematics
If you bought a second hand car worth 4500 british pounds after getting 15% discount. How much did the car cost originally?
- 3800 british pounds
- 5300 british pounds
- 6000 british pounds
P
pB1B2 asked · 13 Nov 2016
explain pls
BWeekes: This person has posted several almost identical questions and all are wrong in the exact same way.
1. Mathematics
If you bought a TV set worth 30 british pounds after getting 15% discount. How much discount did you get?
- 5 british pounds
- 15 british pounds
- 35 british pounds
R
Ricky.molte asked · 8 Dec 2023
Someone could explain this please ?
BWeekes: All these answers are wrong. If a TV is $35 and you get a 15% discount you will $29.75 So the question is flawed.
1. Mathematics
15.4/2 - 2*(6.2 - 15.6)
- -11.1.
- 11.1.
- 26.5.
R
RK asked · 31 Jan 2021
the answer is wrong
Eric Ligi: got it thanks
1. Mathematics
The characteristic of Log 0.698 is
- -2.
- -1.
- 1.
R
richiZzala asked · 25 Jan 2025
The characteristic of Log 0.698 is
1. Mathematics
24/0 (twenty four divided by nothing) is
- nothing.
- infinity.
- 24.
C
craig toogood asked · 24 Sep 2013
surely 24 divide this by nothing you still have 24 whole as a figure rather than infinity???
Eric Ligi: it's like in limits, number/ zero gives infinite, number/infinite gives zero
1. Mathematics
A quadratic equation has the real roots x=6 and x=9. Determine the equation which is satisfied by these roots.
- x^2 -54x+15=0
- x^2 -15x+54=0
- x^2 +15x-15=0
R
RK asked · 7 Feb 2021
Please write your question here.
Eric Ligi: mathway.com/Algebra this has the same numebers, the first i sent had different numebr, but the solutions is explained better
1. Mathematics
One of the square roots of a positive number is positive. What is the other one?
- positive
- negative
- positive or negative.
J
Jordi asked · 9 Feb 2020
why?I dont understand.
Jordi: thanks man i managed to passed this subject
1. Mathematics
If x in an equation equals Ly + 7cb, define the formula for finding the subject y.
- x-7cb/L
- x+7cb/L
- x-L/7cb
L
Leonardo56 asked · 8 Jul 2024
Non ricordo perch
roebrtofranco: Isolando la Y porti la L sotto a 7cb
1. Mathematics
What is the equation of the line shown?
- y = 2x + 2
- y = -2-x
- y = x-2
K
keidi.lifja asked · 26 Jun 2024
Please write your question here.
1. Mathematics
Simplify (a+b)(a-c)(b-c) divided by (b+a)(c-a)(c-b).
- -1
- 1
- (a+b)(a-c)(b-c)
M
muzammil asked · 25 Nov 2012
The first option seems more appropriate here
maje90: Simplificado (a+b)/a+b) y nos sobra (a-c)(b-c)/(c-a)(c-b) (a-c)(b-c)/(-1){(a-c)((b-c)} Simplificamos de nuevo y nos queda 1/(-1) = -1.
1. Mathematics
What is the area of the trapezium shown?
- 24 cm^2
- 27 cm^2
- Area cannot be calculated from information given.
S
SaifArab2002 asked · 18 Apr 2024
Please write your question here.
1. Mathematics
What is 738 in binary coded decimal?
- 1011110010
- 111100010
- 11100111000
C
Charlie007 asked · 22 Dec 2021
wrong answer
pfardellas: yes the right answer is 1011100010 of course please change this!!!!
1. Mathematics
Find L in the following expression:
- L = Q^2 * C / R^2
- L = Q^2 * C^2 / R
- L = Q^2 * R^2 * C
M
Miguel Angel asked · 12 Nov 2023
Please write your question here.
1. Mathematics
Make m the subject of the formula in y=mx+c.
- m=y-x/c
- m=(y-c)/x
- m=y+c/x
A
Anthony23 asked · 7 Nov 2023
Please write your question here.
1. Mathematics
Solve the simultaneous equations y = x + 2 and 3y + 2x = 6.
- x = 2, y = 0
- x = 0, y = 2
- x = 0, y = 0
A
Anthony23 asked · 7 Nov 2023
Please write your question here.
1. Mathematics
Calculate the area of the shape shown:
- 3pi
- 6.75pi
- 17.5pi
S
sakismiou asked · 31 Mar 2023
Please write your question here.