Expand (5x/4 + 3/4)^3

125x^3 + 27/ 64

Step-by-step explanation :

This can be done in man ways. But I recommend solving what is inside the brackets first.

So add 5x/4 and 3/4, which gives 5x+3/4

Now, rewrite the term with simplified brackets

(5x+3/4)^3

Now we have to cube 5x+3/4

5x+3/4^3 = 125x^3 + 27/64

Hope this helps

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the answer is b.

step-by-step explanation:

by the trigonometric ratio tangent, tangent equals opposite divided by adjacent.

therefore, tan(50) equals ac/3

multiply each side by 3 to get: ac=3tan(50)

the answer is b.

34.5 cm

step-by-step explanation:

generally for a circular segment of angle, θ° and radius r

arc length

= (θ/360) x circumference

= (θ/360) x 2πr

in our case, θ = 60°, π=3.142 and r = 33 cm

substitute into above formula

arc length

= (60/360) x 2(3.142)( 33) = 34.5 cm