For what values of y is the expression \(\frac{6y-1}{y^2 - y-6}\)
\(\frac{1}{6}, \frac{1}{4}\)
3, -2
-3, 2
0,1
Correct answer is B
The expression is not defines when y2 - y - 6 = 0
=> y2 - 3y + 2y - 6 = 0 => (y-3)(y+2) = 0 => y
-3 = 0 or y + 2 = 0 => y = 3 or -2
Which of the following structures is not essential in a wind pollinated flower?
Anther
Ovary
Stigma
Petal
Correct answer is D
No explanation has been provided for this answer.
\(\frac{2}{3}\)
2
4
8
Correct answer is B
T.S.A of the wall \(=2(7\times 5 + 7 \times x + 5 \times x) = 96\\
70 + 14x + 10x = 96 \Rightarrow 24x = 96-70=26\\
x = \frac{26}{24}=\frac{13}{12}\)
Abnormally high blood sugar levels
Drinking large quantities of water
Increase in osmotic pressure of blood
Period of strenuous exercise
Correct answer is A
No explanation has been provided for this answer.
Simplify: \(\frac{2}{3xy} - \frac{3}{4yz}\)
\(\frac{2-x}{12xyz}\)
\(\frac{2z-3x}{12xyz}\)
\(\frac{4z-3x}{12xyz}\)
\(\frac{8z-9x}{12xyz}\)
Correct answer is D
\(\frac{2}{3xy} - \frac{3}{4yz} = \frac{2(4)-3(3x)}{12xyz} = \frac{8z-9x}{12xyz}\)