For a standard normal distribution, the expression that is always equal to 1 is P(z≤-a)+P(-a≤z≤a)+P(Z≥a). This expression represents all of the possible values in a curve, or in other words, the total area of a curve. According to standard normal distribution, the total area of a curve is always equal to 1.
Answer:
15 and 27 are composite
Step-by-step explanation:
prime numbers only factor into 1(x) and x(1)
13 = 1(13), 13(1)
15 = 1(15), 3(5), 5(3), 15(1)
17 = 1(17), 17(1)
27 = 1(27), 3(9), 9(3), 27(1)
hope this helps
Answer:
okay i will answer but i dont see the question
Step-by-step explanation:
Answer:
Question 1) To find discount, tax or tip (or the percent of a number) you must take the original number and multiply it by...
The percent with the % sign
The percent written as a decimal
The decimal moved 5 spaces to the right
(Question 2)Michael goes to the jewelry store to buy his mom a necklace. The necklace is normally $119 but the store is having a 25% off sale. How much will Michael
pay for the necklace?
$29.75
$94.00
$89.25
$99.75
(Question 3)Sue’s mom ordered pizzas and snacks for her family. She ordered three pizzas, 1 dozen donuts, and 1 dozen cookies. Each pizza cost $12.99, donuts are $3.99 per dozen, and the cookies are $4.50 per dozen. (All prices include sales tax.) If she paid with a $50 bill, how much change did she receive?
$28.52
$47.46
$2.54
$3.54
Step-by-step explanation:
