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Anna71 [15]
3 years ago
10

Which of the following numbers is written in scientific notation?

Mathematics
1 answer:
anyanavicka [17]3 years ago
7 0

Answer:

OD.5.23 hope this helps

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(20 points) A statistics practitioner calculated the mean and the standard deviation from a sample of 400. They are x = 98 and s
Nimfa-mama [501]

Answer:

The P-value is 0.0234.

Step-by-step explanation:

We are given that a statistics practitioner calculated the mean and the standard deviation from a sample of 400. They are x = 98 and s = 20.

Let = population mean.

So, Null Hypothesis, : = 100 {means that the population mean is equal to 100}

Alternate Hypothesis, : > 100 {means that the population mean is more than 100}

The test statistics that will be used here is One-sample t-test statistics because we're yet to know about the population standard deviation;

T.S. = ~

where, = sample mean = 98

s = sample standard deviation = 20

n = sample size = 400

So, the test statistics = ~

= -2

The value of t-test statistics is -2.

Now, the P-value of the test statistics is given by;

P( < -2) = 0.0234 {using the t-table}

8 0
3 years ago
Let x = a + bi and y = c + di and z = f + gi
ikadub [295]
True statements:
a) x + y = y + x  ⇒ commutative property of addition
b) (x * y) * z = x * (y * z) ⇒ associative property of multiplication
d) (x + y) + z = x + (y + z) ⇒ associative property of addition

False statements:
c) x - y = y - x  should be: x - y = - y + x
e) (x - y) - z = x - (y - z) should be: (x - y) - z = x - (y + z)
6 0
3 years ago
Read 2 more answers
Help me please :) thank you
Ghella [55]

Answer:

do 10 20 20 40 50

Step-by-step explanation:

hope it helps sorry if it does not if not then try 1 2 3 4 5

6 0
3 years ago
I need help ASAP! I am offering brainiest to whoever answers the question first!!!
lara [203]
-3:1 :) have a nice day!
8 0
3 years ago
Read 2 more answers
5x-6y=3 <br> 7y=2x+8 <br> Help me out please
zaharov [31]

Answer:

A) 5x-6y=3

B) 7y=2x+8

B) -2x + 7y = 8  then multiplying "B" by 2.5

B) -5x +17.5y = 20  then adding this to A

A) 5x -6y = 3

11.5y = 23

y = 2

x = 3

Step-by-step explanation:

3 0
3 years ago
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