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Harman [31]
3 years ago
13

Help me on this question

Mathematics
1 answer:
Lorico [155]3 years ago
3 0

Answer:

Step-by-step explanation:

a) 16^ (-1/4)=2^4(-1/4)=2^-1=1/2

b) 27*9^3x=

we write 27=3^3

9=3^2*3x=3^6x

3^3 x 3^6x=   k=3+6x

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Read 2 more answers
HELP ASAP FOR BRAINLIEST
zaharov [31]

Answer:

6x2+8x−8

Step-by-step explanation:

6x3+26x2+16x−24

x+3

=

6x3+26x2+16x−24

x+3

=

2(x+2)(x+3)(3x−2)

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5 0
3 years ago
The business college computing center wants to determine the proportion of business students who have personal computers (PC's)
Anastasy [175]

Answer:

Option A) reject null hypothesis if z is greater than 1.645

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 250

p = 30% = 0.3

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Number of women belonging to union , x = 75

First, we design the null and the alternate hypothesis  

H_{0}: p = 0.3\\H_A: p > 0.3

This is a one-tailed(right) test.

Rejection Region:

z_{critical} \text{ at 0.05 level of significance } = 1.645

So, the rejection region will be

z > 1.64

That is we will reject the null hypothesis if the calculated z-statistic is greater than 1.645

Option A) reject null hypothesis if z is greater than 1.645

6 0
3 years ago
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