Genevieve wants to verify that One-fifth (5 x minus 20) minus one-half (4 x minus 8) is equivalent to Negative x. Which procedure can Genevieve follow to determine if the two expressions are equivalent? Add the two expressions.
Put an equal sign between the two expressions and solve for x.
Substitute 5 into the first expression, substitute 4 into the second expression, and evaluate them.
Substitute 5 into each expression and evaluate them.

The answer is D:Substitute 5 into each expression and evaluate them.

Step-by-step explanation:Cause i got it right on ed.

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!