Use the Pythagorean theorem:

Answer:
x=291/76
Step-by-step explanation:
Convert:
1/2x(6x+ 1/2)=-0.8x+16-1.2
Remove parenthesis and move terms:
3x+1/4=-0.8x+14.8
Collect the like terms and convert:
3x+0.8x=14.8-1/4
Subtract the fractions:
3.8x=74/5-1/4
Divide both sides by 3.8:
3.8x=291/20
x=291/76
Answer:
-5t² + 2t - 3
Step-by-step explanation:
G = 3t2 – 5t + 6
P = -8t² + 7t – 9
G + P
= (3t² – 5t + 6) + (-8t² + 7t – 9)
= 3t² - 8t² - 5t + 7t + 6 - 9
= -5t² + 2t - 3
Keep in mind that means is the same as asking for the average. all you need to do is add all the values and divide them by the number of values, which is 5
<span>$39.99 + $31.99 + $19.99 +$23.99 + $26.99= 142.95
mean= 142.95/5 = 28.59</span>
To find the area of the square multiply the length by the height.
12.4 × 12.4 = 153.76