Answer:
<u><em>Answer is below</em></u>
Step-by-step explanation:
<em><u>-2 ×^2 - 4y +6</u></em>
<em><u>Evaluate simply means to form an idea of something</u></em>
<em><u>So Evaluate for x=−3,y=−2</u></em>
<em><u>−2(−3)2−(4)(−2)+6</u></em>
<em><u>−2(−3)2−(4)(−2)+6</u></em>
<em><u>Answer =−4</u></em>
Answer:
a. 12 feet b. 12 feet 0.5 inches c. 8.33 %
Step-by-step explanation:
a. How far out horizontally on the ground will it protrude from the building?
Since the rise to run ratio is 1:12 and the building is 12 inches off the ground, let x be the horizontal distance the ramp protrudes.
So, by ratios rise/run = 1/12 = 12/x
1/12 = 12/x
x = 12 × 12
x = 144 inches
Since 12 inches = 1 foot, 144 inches = 144 × 1 inch = 144 × 1 foot/12 inches = 12 feet
b. How long should the ramp be?
The length of the ramp, L is gotten from Pythagoras' theorem since the ramp is a right-angled triangle with sides 12 inches and 144 inches respectively.
So, L = √(12² + 144²)
= √[12² + (12² × 12²)]
= 12√(1 + 144)
= 12√145
= 12 × 12.042
= 144.5 inches
Since 12 inches = 1 foot, 144.5 inches = 144 × 1 inch + 0.5 inches = 144 × 1 foot/12 inches + 0.5 inches = 12 feet 0.5 inches
c. What percent grade is the ramp?
The percentage grade of the ramp = rise/run × 100 %
= 12 inches/144 inches × 100 %
= 1/12 × 100 %
= 0.0833 × 100 %
= 8.33 %
Answer:
Im pretty sure the answer is 410 2/3
I hope this helped to answer your question.
Have a great day! :)
Don’t open that link it’s takes all your information
Answer:
0,-7 8,567;7,57,6,6,6,6,6,78,3,5
