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2 years ago

The valley was at least 4 feet below sea level. Inequality? PLEASE HELP DUE TODAY!!!!

1 answer:

3 0

If you are given the valley of at least 4 feet below sea level, and then let us assume that x is the distance of the valley, then the inequality is x < 4.

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Evaluate -4a + 10 when a = -2

stiks02 [169]

Answer:

18

Step-by-step explanation:

replace a with -2

-4(-2) + 10

multiply the -4 and the -2, the negatives cancel out and leave you with 8

8 +10

just add

4 0

3 years ago

A professor thinks that the students in her statistics class this term are less creative than most students at this university.

choli [55]

Answer:

It is not enough evidence to reject null hypothesis. It is not enough evidence to say that mean score is not equal to 35.

Step-by-step explanation:

$\mu=35\\n=23\\\=x=33\\s=5\\\alpha=0.1$

1. Null and alternative hypothesis

$H_{0}:\mu=35\\H_{1}:\mu$

2. Significance level

$\alpha=0.1\\1-\alpha=0.99$

Freedom degrees is given by:

$v=n-1\\v=23-1=22$

For a sgnificance level of 0,01 and 22 freedom degrees, t-student distribution value is:

$t_{0.01;23}=-2. 5083$

3. Test statistic

$t=\frac{\=x-\mu}{\frac{s}{\sqrt{n} } }$

$t=\frac{33-35}{\frac{5}{\sqrt{23} } }$

$t=-1,918$

In this case, we have an one left tailed analysis, it means that null hypothesis is rejected if $t$

$-1.918>-2.5083$

Conclusion:

It is not enough evidence to reject null hypothesis. It is not enough evidence to say that mean score is not equal to 35.

3 0

2 years ago

Which is the simplified form of the expression (6 Superscript negative 2 Baseline times 6 Superscript 5 Baseline) Superscript ne

Finger [1]

Answer: The answer is B

8 0

2 years ago

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Shania is planning a party at her home. She has made 126 chocolate truffles and 84 caramel truffle to give to her guests if ther

Triss [41]

Each person would receive 6 chocolate truffles and 4 caramel truffles because 126÷21=6 and 84÷21=4.

3 0

3 years ago

Choose the function that correctly identifies the transformation of f(x) = x2 shifted two units to the left and one unit down.

AnnZ [28]

Answer:

D) g(x) = (x + 2)^2 - 1

7 0

3 years ago

Read 2 more answers