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Veronika [31]
2 years ago
14

Use the graph of the polynomial equation y = x⁴-10x²+16 to describe its concavity. How many points of inflection does this curve

have?
Mathematics
1 answer:
stellarik [79]2 years ago
5 0

Answer: oOf that must be rough

Cuz I don’t know a thing since I’m literally on a quiz

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What is the value of the expression (9+15)/3+2?
KIM [24]
(9+15)/3+2
24/3+2
8+2
10
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3 years ago
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Mary can read 22 pages in 30 minutes how long would it take her to read a 100 page book? Right your answer in hours and minutes
mario62 [17]
30 divided by 22= 1.36 
1.36 minutes for each page, to check 1.36x22= 29.92
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Mary would need about 2 hours and 16 minutes to read a 100 page book.
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3 years ago
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The commuting time for a student to travel from home to a college campus is normally distributed with a mean of 30 minutes and a
Rainbow [258]

Answer:

0.1587

Step-by-step explanation:

Let X be the commuting time for the student. We know that X\sim N(30, (5)^2). Then, the normal probability density function for the random variable X is given by

f(x) = \frac{1}{\sqrt{2\pi(5)^{2}}}\exp[-\frac{(x-\mu)^{2}}{2(5)^{2}}]. We are seeking the probability P(X>35) because the student leaves home at 8:25 A.M., we want to know the probability that the student will arrive at the college campus later than 9 A.M. and between 8:25 A.M. and 9 A.M. there are 35 minutes of difference. So,

 

P(X>35) = \int\limits_{35}^{\infty}f(x)dx = 0.1587

To find this probability you can use either a table from a book or a programming language. We have used the R statistical programming language an the instruction pnorm(35, mean = 30, sd = 5, lower.tail = F)

6 0
3 years ago
PLEASE HELP ME!!<br><br> BRAIINLIEST WILL BE GIVEN
PtichkaEL [24]
Your answer would be <em />answer choice C. The initial number of transactions is a dependent variable, because the number of transactions made are dependent on the number of hours that have passed.

Hope this helps,
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4 0
2 years ago
You spend $40 on 5 Pounds of concreate what is the<br> 1 unit rate in dollars
Umnica [9.8K]

Answer:

$8

Step-by-step explanation:

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2 years ago
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