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Find the tangent to the equation y=x^2 -2x +4 when x=2

When X=2 Y=2^2-2(2)+4=4 So the coordinates are (2,4)Differentiate Y so dy/dx = 2x-2Tangent Gradient when x=2 is 2(2)-2=2 so m=2We need to find the y intercept to get out tangent equationso y=2x+c , we sub in...
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divide 352 into a ratio of 5:11

5 + 11 = 16352/16 = 2222 x 5 = 11022 x 11 = 242therefore the answer is 110 and 242
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Answered by Paul Z. • Maths tutor
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A scalene triangle ABC has side lengths AB=6cm, BC=4cm, and AC=x cm. The angle A, opposite BC, is 40 degrees and the angle B, opposite AC, is 50 degrees. State the sine rule and use it to find the value of x to 3 s.f.

The sine rule states that for any scalene triangle ABC the following equation holds: BC/sin(A) = AC/sin(B) = AB/sin(C) . [Draw a diagram.] By drawing the triangle and substituting the values that we know int...
TC
Answered by Thomas C. • Maths tutor
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What do we call a group of cell which work together to carry out a specific function?

A tissue.
DT
Answered by Dylan T. • Biology tutor
10660 Views

How are leaves adapted for photosynthesis?

Leaves are broad with a large surface area so that they are exposed to more light and can maximize light absorption. - They are thin and flat so that carbon dioxide has a shorter distance to diffuse and the ...
DT
Answered by Dylan T. • Biology tutor
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