1. Mathematics - Q&A
164 questions found
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(6 - 2) - (6 - 9) / (-3 + (-3))
- 3 1/2.
- 4.
- 4 1/2.
Isn’t this - 7/6?
(6 - 2) - (6 - 9) / (-3 + (-3))
- 3 1/2.
- 4.
- 4 1/2.
Isn’t this - 7/6?
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
Πως βγαίνει αυτό
What is the area of the trapezium shown?
- 24 cm^2
- 27 cm^2
- Area cannot be calculated from information given.
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° 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
The characteristic of Log 0.698 is
- -2.
- -1.
- 1.
The characteristic of Log 0.698 is
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
Non ricordo perchè
What is the equation of the line shown?
- y = 2x + 2
- y = -2-x
- y = x-2
Please write your question here.
What is the area of the trapezium shown?
- 24 cm^2
- 27 cm^2
- Area cannot be calculated from information given.
Please write your question here.
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
Why isn't 80.34cm? I didn't understand it.
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
Someone could explain this please ?
Find L in the following expression:
- L = Q^2 * C / R^2
- L = Q^2 * C^2 / R
- L = Q^2 * R^2 * C
Please write your question here.
Make m the subject of the formula in y=mx+c.
- m=y-x/c
- m=(y-c)/x
- m=y+c/x
Please write your question here.
Solve the simultaneous equations y = x + 2 and 3y + 2x = 6.
- x = 2, y = 0
- x = 0, y = 2
- x = 0, y = 0
Please write your question here.
Calculate the area of the shape shown:
- 3pi
- 6.75pi
- 17.5pi
Please write your question here.
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
How do i go about it
101110 in binary is
- 46 base 2.
- 46 base 8.
- 46 base 10.
Please explane
What is 738 in binary coded decimal?
- 1011110010
- 111100010
- 11100111000
wrong answer
What is the characteristic of 5.74?
- -1
- 0
- 1
what is mean this question?
The y intercept of 4y = 4x + 8 is
- 2.
- 4.
- 8.
What it means with intercept?
An aircraft flies 1350nm in 2 hrs 15 minutes. What is the average speed?
- 600kts
- 650kts
- 850kts
Please write your question here.
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
Please write your question here.
What is the square root of 4 raised to the fifth power?
- 32
- 64
- 128
any help?
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
any help?
15.4/2 - 2*(6.2 - 15.6)
- -11.1.
- 11.1.
- 26.5.
the answer is wrong
In a right-angled triangle the other two angles are both 45 degrees. The length of the opposite side can be calculated by
- cos 45 degrees x length of the adjacent side of the triangle.
- sin 45 degrees x length of the adjacent side of the triangle.
- sin 45 degrees x length of the hypotenuse side of the triangle.
Any explanation please