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meriva
3 years ago
9

What is the difference in the account balances shown below? Behrooz: (-$21.00) Cody: $3.00

Mathematics
1 answer:
suter [353]3 years ago
4 0

Answer:

-7

Step-by-step explanation:

-21.00/3.00

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ololo11 [35]
If Carla would have bought 4 plants it would have been 13 dollars from green touch

If she would have bought them for the grocery store it would have been 14 dollars

So in conclusion she saved 1 dollar
Option 3
8 0
3 years ago
The circle graphs show the percentage of men and women from Country X who consider owning a home an important part of adult life
morpeh [17]

Answer: a) 76 : 24

              b) 24 : 76

Step-by-step explanation: <u>Odds</u> describe the possibility an event will occur, i.e., is the ratio of an event being successful with the chance of an event failing. It can be in favor or against:

  • <u>Odds</u> <u>in</u> <u>favor</u> is expressed as: favor=\frac{favorable}{unfavorable};
  • <u>Odds</u> <u>against</u> is expressed as: against=\frac{unfavorable}{favorable};

a) Odds in favor

favor=\frac{76/100}{24/100}

favor=\frac{76}{24}

or

favor = 76 : 24

Odds in favor of a man agreeing owning a house is an important part of adult life is 76 : 24.

b) Odds against

against=\frac{24/100}{76/100}

against=\frac{24}{76}

or

against = 24 : 76

Odds against of a man agrreing that owning a house is an important part of adult life is 24 : 76

8 0
3 years ago
2.077× (10 to the -4th power) In Scientific notation PLEASE HELP
Paha777 [63]
0.0002077 because it’s to the negative power
3 0
4 years ago
Q2: What is the radius? Because this is an approximation use 3.14 as pi. Round to
bija089 [108]

Answer:

r=11 m

Step-by-step explanation:

Too lazy to explain:

πr²h=v

3.14*r²*12=4560

r²≈121

r is 11 m

4 0
3 years ago
Read 2 more answers
Consider the following hypothesis test:H 0: = 17H a: 17A sample of 40 provided a sample mean of 14.12. The population standard d
Nonamiya [84]

Answer:

We conclude that the population mean is not equal to 17.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 17

Sample mean, \bar{x} = 14.12

Sample size, n = 40

Alpha, α = 0.05

Population standard deviation, σ = 4

First, we design the null and the alternate hypothesis

H_{0}: \mu = 17\\H_A: \mu \neq 17

We use Two-tailed z test to perform this hypothesis.

a) Formula:

z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }

Putting all the values, we have

z_{stat} = \displaystyle\frac{14.12 - 17}{\frac{4}{\sqrt{40}} } = -4.5536

b) P-value can be calculated from the standard z-table.

P-value = 0.0000

c) Since the p-value is less than the significance level, we reject the null hypothesis and accept the alternate hypothesis. Thus, the population mean is not equal to 17

d) Now, z_{critical} \text{ at 0.05 level of significance } = \pm 1.96

e) Rejection Rule:

We reject the null hypothesis if it is less than lower critical value and greater than the upper critical value

If the z-statistic lies outside the acceptance region which is from -1.96 to +1.96, we reject the null hypothesis.

f) Since the calculated z-stat lies outside the acceptance region, we reject the null hypothesis and accept the alternate hypothesis. Thus, the population mean is not equal to 17.

4 0
3 years ago
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