A triangular banner is 8 feet 9 inches wide and 6 feet 3 inches high. What is the area of the banner? Round to the nearest tenth square foot if necessary. Area =
ft2

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i hope this : )

the answer will be b x² +x-1

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hello,

b) 62.47% of the students are between 14 and 18 years old.

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mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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i cant answer this, theres no table. sorry man

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