Use trigonometry please

i) 3.81 metres

ii) 17.5

Step-by-step explanation:

i) use the pythagorean theorem (a^2+b^2=c^2)

ii) we know 2 side lengths and from the angle the ramp makes with the ground, those side lengths are the opposite and hypotenuse. You can now use the arc sine of 1.2/4 to get the angle.

3. (5x + 1) - (-10x + 6)

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

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if i knew id you bro,, my bad