Answer: 2.5%
Step-by-step explanation:
Mean score = 65
Standard deviation = 5
Score (x) = >75
Z-score = [(score - mean) ÷ standard deviation]
Z - score = [(75 - 65) ÷ 5]
Z - score = 10 ÷ 5 = 2
P(score higher than 75) = 100 - 95 = 5/2 = 2.5%
Answer:
336 ft²
Step-by-step explanation:
The rectangle is 13 ft long and 8 width that means we have two walls 8* 9 and two walls 13*9
Total walls area is
2*8*9 + 2*13*9 = 144 + 234 = 378 ft²
then we subtrac , areas of door, closet and windows
3 * 6.5 = 19,5 ft²
3 * 6,5 = 19,5 ft²
2 * 1,5 = 3 ft²
42 ft²
Then area to paint 378 - 42 = 336 ft²
Answer:
Ratio 1= 14:6
Ratio 2=21:9
Ratio 3=28:12
Step-by-step explanation:
7:3
7×2=14
3×2=6
=14:6
7×3=21
3×3=9
=21:9
7×4=28
3×4=12
=28:12
The answer is 18
75/x = 100%/24%
x/75 = 24/100
you’re answer is 18
Answer:
what si the questions
Step-by-step explanation:
