In the diagram PQRS is a circle, |PT| = |QT| and ∠QPT = 70o what is the size of ∠PRS?
40o
70o
80o
140o
Correct answer is B
∠QPT = ∠QTP = 70o. Since ∠QTR = 140o
∠PRS = TSR = 1/2(180-40) = 70o
The frog is considered a better swimmer than the toad because it
has more pronounced webbed digits
has much longer and stronger hind limbs
lives in water most of the time
is more streamlined than the toad
Correct answer is A
No explanation has been provided for this answer.
The producers in a food chain in an aquatic environment are
birds
phytoplankton
zooplankton
fishes
Correct answer is B
No explanation has been provided for this answer.
What is the equation of the curve?
\(y=x^2+6x+4\)
\(y=x^2-5x-4\)
\(y=x^2-5x+4\)
\(y=x^2+5x-4\)
Correct answer is C
The factor for the curve are (x-1)(x-4). The product off the curves gives \(=x^2-5x+4=y\)
The maximum size of a population that a given area can support is known as
population density
carrying capacity
population growth
maximum population
Correct answer is B
No explanation has been provided for this answer.
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