Answer:
True
Determine whether x+2 is a factor of x³-3x²-7x+6:
↓
<em>I hope this helps you</em>
<em>:)</em>
Answer:
6
because when you subtract 6 from 6 you get 0
6 - 6 = 0
Answer: Sandra's salary in the previous year was $48,000
Step-by-step explanation:
Hi, the expression given is missing the $2000 more that she earns this year.
0.14 (x +2000) =7000
Where:
- <em>x is Sandra's salary in the previous year.
</em>
- <em>0.14 is the decimal form of 14% (14/100=0.14)
</em>
Solving for x :
0.14(x) +0.14 (2000) =7000
0.14x +280 =7000
0.14 x = 7000-280
0.14x = 6720
x = 6720/0.14
x=48,000
Sandra's salary in the previous year was $48,000
Feel free to ask for more if needed or if you did not understand something.
Answer: i love all
An Animal's Perspective
Have you ever wondered what it would be like to see the world from the perspective of a bird or another animal? Imagine that you were given the opportunity to spend time as an animal.
Write a short story that describes your time as a bird or another animal. Include descriptive details that explain how you became an animal and what you decide to do.
As you write, remember your essay will be scored based on how well you:
develop a multi-paragraph response to the assigned topic that clearly communicates the purpose of your story to the audience.
describe the characters, setting, and conflict using meaningful sensory descriptions and details that enable the reader to visualize the experiences in your narrative.
organize your story in a clear and logical manner, including an introduction, body, and conclusion.
use well-structured sentences and language that are appropriate for your audience.
edit your work to conform to the conventions of standard American English.
Use any of the tools available to you, such as the Checklist, Spellchecker, or Graphic Organizer.
Step-by-step explanation:
Answer:
a) 66.1 < μ < 82.7
b) 71.9 < μ < 97.7
c) D. No, because the two confidence intervals overlap, we cannot conclude that the two population means are different.
Step-by-step explanation:
Confidence interval is given by the formula
M±t×(
) where
- M is the sample mean
- t is the corresponding t value for 95 confidence level
- s is the sample standard deviation
- N is the sample size
<u>a. Construct a 95% confidence interval estimate of the mean pulse rate for males.</u>
For men:
M=74.4 t=2.262 s=11.6207 N=10 then confidence interval is:
74.4±2.262×(
) ≈ 74.4±8.3
<u>b. Construct a 95% confidence interval estimate of the mean pulse rate for females.</u>
For women:
M=84.8 t=2.262 s=18.0488 N=10 then confidence interval is:
84.8±2.262×(
) ≈ 84.8±12.9
<u>c. Compare the preceding results. Can we conclude that the population means for males and females are different?</u>
Difference of Population means for males and females are not statistically significant, since confidence intervals overlap.
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