All work must be shown 4. Harold works at a state park. He needs to seal the redwood deck at the information center to
protect the wood. He measures the deck and finds that it is a kite with diagonals 40 feet and 70 feet.
a) What is the area of the deck? b) If each gallon of sealant covers 400 square feet, how many
gallons of sealant are needed? c) If the sealant only lasts six months, then how many gallons of
sealant are needed to protect the deck for the next three years?

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation:

b: |12 – x| ≤ 0.25

step-by-step explanation:      

let x be the possible lengths in inches, of the ribbons jaime cut.

we have been given that jaime is cutting strips of ribbon for a project. he tries to cut each piece to be 12 inches long, but sometimes he cuts it too long or too short by as much as 0.25 inch.  

we can represent this information in an inequality as:

by the definition of absolute value function we will get,

upon combining our inequalities we will get,

therefore, the inequality   describes all the possible lengths (x), in inches, of the ribbons jaime cut.

step-by-step explanation:

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!

answer: idk wbu

step-by-step explanation: umm..