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raketka [301]
3 years ago
15

9 Helppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp

ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp

Mathematics
1 answer:
valina [46]3 years ago
6 0

Answer:

Step-by-step explanation:

a)1.04

b)2.53

c) 0.066

d) 2.626

e)0.03

f)3.675    

You're welcome!! And mark me as Brainiest please!

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Re-write the quadratic function below in Standard Form<br> y = -(x + 8)(x + 7)
Iteru [2.4K]

Answer:

y = - x² - 15x - 56

Step-by-step explanation:

y = - (x + 8)(x + 7) ← expand factors using FOIL

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6 0
3 years ago
Last year, 46% of business owners gave a holiday gift to their employees. A survey of business owners indicated that 20% plan to
alisha [4.7K]

Answer:

Part a: So the number  of business owners giving holiday gift to their employees from survey is 12.

Part b: p-value is 0.00003

Part c: value of p is less that a we reject the null hypothesis.

Step-by-step explanation:

Part a

number of business owners=20%  x n

number of business owners= 0.2x 60

number of business owners=12

Part b

H0: p=0.46

H1: p<0.46

Here

n=60, \hat{p}=0.2, p=0.46

So test statistics is given as

                        z=\frac{\hat{p}-p}{\sqrt{\frac{p(1-p)}{n}}}\\z=\frac{0.20-0.46}{\sqrt{\frac{0.46(1-0.46)}{60}}}\\z=\frac{-0.26}{0.064}\\z=-4.04

p-value is P(z<-4.04)= 0.00003

Part c

As value of p is less that a we reject the null hypothesis.

4 0
3 years ago
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