Answer:
Top prism = 262 in.² Bottom prism = 478 in.²
Step-by-step explanation:
top prism:
front + back: 5 x 3 = 15
sides: 19 x 4 x 2 = 152
bottom: 19 x 5 = 95
15 + 152 + 95 = 262
bottom prism:
front + back: 5 x 6 x 2 = 60
sides: 19 x 6 x 2 = 228
top + bottom: 19 x 5 x 2 = 190
60 + 228 + 190 = 478
Each of the members must raise at least $69.46.
To start they need to raise $552.50. However, they have already raised 12% of it. They only need to raise 88% of it.
552.50 x 0.88 = 486.2
Divide the remaining amount by 7 to determine how much each individual must raise.
486.2 / 7 = 69.46
Answer:
1/3 cups of flour
Step-by-step explanation:
The recipe originally calls for 2/3 cups of flower. However, if the chef only wants to make <u>half</u> of the recipe, we must divide the original recipe by 2. Dividing by 2 is the same as multiplying by 1/2.
2/3 * 1/2 = 2/6 (multiply across)
Simplify 2/6 - 1/3.
Answer: 0.6827
Step-by-step explanation:
Given : Mean IQ score : 
Standard deviation : 
We assume that adults have IQ scores that are normally distributed .
Let x be the random variable that represents the IQ score of adults .
z-score : 
For x= 90
For x= 120
By using the standard normal distribution table , we have
The p-value : 
Hence, the probability that a randomly selected adult has an IQ between 90 and 120 =0.6827
