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lyudmila [28]
3 years ago
9

What is 589 + 983 math question?

Mathematics
2 answers:
zepelin [54]3 years ago
6 0
    1 1
    589     
 + 983                 
_____
   1572

zhenek [66]3 years ago
3 0
The answer is 1,572 please give this a THANKS and also the BRAINIEST ANSWER/CROWN! :) :D
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5/6 is equivalent to a percent that is larger than 100%. <br><br> True or False<br><br> 13 pts.
omeli [17]

I think it's false.... 5/6 is 83.33% as a percent so I don't think it's true.

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Suppose that we are testing a coin to see if it is fair, so our hypotheses are: H0: p = 0.5 vs Ha: p ≠ 0.5. In each of (a) and (
aleksley [76]

Answer:

H_0: p = 0.5\\H_a: p \neq 0.5

a. We get 56 heads out of 100 tosses.

We will use one sample proportion test  

x = 56

n = 100

\widehat{p}=\frac{x}{n}

\widehat{p}=\frac{56}{100}

\widehat{p}=0.56

Formula of test statistic =\frac{\widehat{p}-p}{\sqrt{\frac{p(1-p)}{n}}}

                                       =\frac{0.56-0.5}{\sqrt{\frac{0.5(1-0.5)}{100}}}

                                       =1.2

refer the z table for p value

p value = 0.8849

a.  We get 560 heads out of 1000 tosses.

We will use one sample proportion test  

x = 560

n = 1000

\widehat{p}=\frac{x}{n}

\widehat{p}=\frac{560}{1000}

\widehat{p}=0.56

Formula of test statistic =\frac{\widehat{p}-p}{\sqrt{\frac{p(1-p)}{n}}}

                                       =\frac{0.56-0.5}{\sqrt{\frac{0.5(1-0.5)}{1000}}}

                                       =3.794

refer the z table for p value

p value = .000148

p value of part B is less than Part A because part B have 10 times the number the tosses.

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Amiraneli [1.4K]

Answer:

The equation has no real solutions. It has 2 imaginary, or complex solutions.

Step-by-step explanation:

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2 years ago
If the complex number x = 3 + bi and |x| 2 = 13, which is a possible value of b?
tatyana61 [14]

Answer:

A.2

Step-by-step explanation:

We know that |x|² = 13 and x = 3+bi:

(3+bi)² = 13

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9 + b² = 13

Subtract 9 from each side:

9 + b² - 9 = 13 - 9

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Take the square root of each side:

√b² = √4

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