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sesenic [268]
2 years ago
14

Steve is trying to find the maximum out of time he can spend practicing the five skills of the piano music is supposed to be wor

king on the 60 minutes to practice piano and he would like to spend at least 35 minutes playing a song and set of practicing skills so Steve set up the phone and he called his way or tea is the number of minutes he spends on a scale
Mathematics
1 answer:
iogann1982 [59]2 years ago
4 0
Your question is hard to follow as you have no punctuation. try again
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In a fast food study a researcher finds that mean sodium content of 32 Wendy's fish sandwiches is 1080 milligrams with a standar
KiRa [710]

Answer:

Since 95% confidence interval contains 0 we conclude at 95% confidence level that the two means are equal.

Step-by-step explanation:

Given that in a  fast food study a researcher finds that mean sodium content of 32 Wendy's fish sandwiches is 1080 milligrams with a standard deviation of 75 milligrams. The mean sodium content of 39 Long John Silver's fish sandwiches is 1120 milligrams with a standard deviation of 100 milligrams

H0: The two means are equal

Ha: The two means are not equal

(Two tailed test at 5% level)

Variable A Variable B

Mean 1080.00 1120.00

SD 75.00 100.00

SEM 13.26 16.01

N 32 39

95% CI: -82.65 to 2.65

Since 95% confidence interval contains 0 we conclude at 95% confidence level that the two means are equal.

7 0
2 years ago
If f(x) = (1/9)(9^x) what is f(3)
TiliK225 [7]

Answer:  The required value of f(3) is 81.

Step-by-step explanation:  We are given the following function :

f(x)=\left(\dfrac{1}{9}\right)9^x~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)

We are to find the value of f(3).

Substituting x = 3 in equation (i), we get

f(3)\\\\\\=\left(\dfrac{1}{9}\right)\times9^3\\\\=9^2\\\\=81.

Thus, the required value of f(3) is 81.

8 0
3 years ago
Read 2 more answers
Find the complex zeros of x^3+27. write f in factored form
aliina [53]
x^3+27=0
\\x^3+3^3=0
\\(x+3)(x^2-3x+9)=0
\\x^2-3x+9=0
\\a=1,b=-3,c=9
\\
\\x_{1,2}= \frac{-b\pm \sqrt{b^2-4ac} }{2a} = \frac{-(-3)\pm \sqrt{(-3)^2-4\times1\times9} }{2\times1} =\frac{3\pm \sqrt{-27} }{2} =\frac{3\pm 3\sqrt{3}i }{2} 
\\
\\(x+3)(x-\frac{3+ 3\sqrt{3}i }{2})(x-\frac{3- 3\sqrt{3}i }{2})=0


4 0
3 years ago
Write the following fraction as a decimal. A. 1.10 B. 10.1 C. 0.1 D. 0.01
skelet666 [1.2K]

A) 1.1/1=11/10

B)10.1/1=101/10

C).1/1=1/10

D).01/1=1/100

you put the number you have to multiply the decimal with to get a whole n.o as the decimal

Hope you found this answer useful

7 0
2 years ago
Read 2 more answers
What is the value of x?
jeka57 [31]

Answer:

The answer is 6

Step-by-step explanation:

3 times 2 equals six

8 0
2 years ago
Read 2 more answers
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