1. Mathematics - Q&A
164 questions found
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Which of the graphs shown is given by the equation; y = 2x^3 + 4x + 3?
- a
- b
- c
Please write your question here.
The surface area of a cone whose height is 10 cm and diameter is 8 cm is
- 40pi cm2 .
- 80pi cm2.
- 120pi cm2 .
how?? the lateral surface of a cone??
The surface area of a cone whose height is 10 cm and diameter is 8 cm is
- 40pi cm2 .
- 80pi cm2.
- 120pi cm2 .
how?? the lateral surface of a cone??
If 2x^2 + kx-8 = 0 has two equal real roots, then
- k is an imaginary number.
- k=+/-8.
- k=-8.
SOMEBODY EXPLAIN
What is log 0.1?
- -1
- -0.1
- 0
i have problem with this
Sin 90 =
- Infinity
- 0
- 1
how to find a sine of an angle without a calculator or mathematical table?somebody assist please
17 degrees 49 minutes and 10 seconds added to 22 degrees 22 minutes and 59 seconds, equals
- 39 degrees 11 minutes and 9 seconds.
- 40 degrees 11 minutes and 69 seconds.
- 40 degrees 12 minutes and 9 seconds.
By degrees does it mean hours? sorry I'm confused.
Calculate the height of an obtuse triangle whose base is X cm and the area is Y square cm.
- Y * 2 / X
- Y + X / 2
- Y * 2 * X
explain please
An aircraft travels 2150 nautical miles in 2 hours 30 minutes. What is the average speed of the aircraft?
- 550 knots
- 600 knots
- 860 knots
somebody explain
(Binary) 11001 + 11001 =
- 55
- 26
- 50
Can you please explain how to solve this? thanks
Find the curved surface area of a cylinder diameter 20cm and length 10cm.
- 200 cm^2
- 628 cm^2
- 400 cm^2
Please write your question here.
D in hexidecimal is what number in decimal?
- 8
- 13
- 17
explain???
What is octal 13 in base 10?
- 4
- 5
- 11
how???
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
explain pls
Find the the area of a circular ring Whose outer diameter is 10 cm and inner diameter is 6 diameter?
- 4pi cm^2
- 16pi cm^2
- 64pi cm^2
How come? A get 64 out from R^2-r^2
100000 in binary is what number in decimal?
- 16
- 32
- 64
Isn't 64 correct??
What is the value of X in the diagram shown?
- 30 degrees
- 35 degrees
- 40 degrees
Please can anyone explain this?b
Determine x in the following: (2x-1)(3x+2) = 0.
- 1.5, 1
- 0.5, 3
- -0.67, 0.5
Can anyone explain how to work this out? Thnx in advance
What is 738 in binary coded decimal?
- 1011110010
- 111100010
- 11100111000
101110001 how this isnt right?
(Binary) 10101 + 11001 =
- (Binary) 46
- (Octal) 46
- (Decimal) 46
Calculation please
What is the formula for calculating the curved area of a cone?
- 2/3 * pi * radius * slan height
- pi * radius * slant height
- pi * radius^2 * slant height
Calculation please
10011 base 2 =
- 29 base 2
- 19 base 10
- 35 base 10
Calculation please
Given the log of A exceeds that of B by 4, find the correct statement about A and B.
- A is 4000 times the value of B.
- A is 10,000 times the value of B.
- A is 1000 times the value of B.
Do the calculation please
D in hexidecimal is what number in decimal?
- 8
- 13
- 17
please explain...
Log 9 - Log 3 + Log 4 =
- Log 10
- Log 12
- Log 16
explain??