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Can you solve (2x-4)(x+1)=0?

All we need to do here is find the values of x that make each bracket zero.So2x-4=02x=4x=2andx+1=0x=-1
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Answered by Samuel I. • Maths tutor
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In triangle ABC, right angled at B, AB = 3 cm and AC = 6 cm. Determine angle BAC and angle ACB.

Using the trignometric principles,sin (ACB) = AB/AC = 3/6 = 1/2Thus, angle ACB = 30 degreesand angle BAC = 90 - angle ACB = 60 degrees
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Answered by Piyush S. • Maths tutor
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Find the zeroes of the quadratic polynomial x^2 + 8x + 15.

x 2 +8x+15 = (x+3)(x+5)So, the value of x 2 +8x+15 is zero when x 2 +8x+15 = 0 i.e. x = -3 or x = -5.
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Answered by Piyush S. • Maths tutor
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Describe the 'reflex arc'

The relfex arc is an innate response designed to keep us safe (this means we do not consiously think about doing it). One of the most common examples for this question is a person touching a hot flame and im...
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Answered by Lauren R. • Biology tutor
13749 Views

What's an Ablative Absolute?

An "ablative absolute" is made up of a noun and a participle in the ablative. It's called an absolute because it's grammatically independent from the rest of the sentence. It's usually found with P...
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Answered by Calypso H. • Latin tutor
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