98 point! a wheelchair ramp must form an angle no greater than 4.8 degrees with the ground. if a 1.8 foot high ramp is needed, what is the minimum horizontal length for the ramp so it satisfies the angle requirement?

The horizontal length must be at least 21. 4 ft

Step-by-step explanation:

We can use trigonometry to solve.

tan theta = opposite  side over adjacent side

tan 4.8 = 1.8/ x  where x is the horizontal side

Multiply each side by x

x tan 4.8 = 1.8

Divide each side by tan 4.8

x = 1.8 / tan 4.8

x = 21.4356283 ft

The horizontal length must be at least 21. 4 ft

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)

it is b)

hope this : )

step-by-step explanation: