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bearhunter [10]
2 years ago
13

How do you find the x-intercept in sentences?

Mathematics
1 answer:
yulyashka [42]2 years ago
8 0

Answer:

To find the x-intercept of any equation, set the y-value to 0.

Step-by-step explanation:

Example:

y=1x+4

To find x-intercept:

0=1x+4

1. Subtract 4 from both sides

2. Divide both sides by 1

The x-intercept is -4

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According to a report released by CIBC entitled "Women Entrepreneurs: Leading the Charge," the average age for Canadian business
SOVA2 [1]

Answer:

We conclude that the mean age of Canadian businesswomen has increased.

Step-by-step explanation:

We are given that according to a report released by CIBC entitled "Women Entrepreneurs: Leading the Charge," the average age for Canadian businesswomen in 2008 was 41.

The researchers randomly sample 97 Canadian businesswomen and ascertain that the sample mean age is 43.4. From past experience, it is known that the population standard deviation is 8.95.

Let \mu = <u><em>mean age of Canadian businesswomen.</em></u>

So, Null Hypothesis, H_0 : \mu \leq 41      {means that the mean age of Canadian businesswomen has decreased or remained same}

Alternate Hypothesis, H_A : \mu > 41     {means that the mean age of Canadian businesswomen has increased}

The test statistics that would be used here <u>One-sample z-test statistics</u> because we know about population standard deviation;

                               T.S. =  \frac{\bar X-\mu}{\frac{\sigma}{\sqrt{n} } }  ~ N(0,1)

where, \bar X = sample mean age of Canadian businesswomen = 43.4

             \sigma = population standard deviation = 8.95

             n = sample of Canadian businesswomen = 97

So, <u>the test statistics</u>  =  \frac{43.4-41}{\frac{8.95}{\sqrt{97} } }

                                     =  2.64

The value of z test statistic is 2.64.

<u>Also, P-value of the test statistics is given by;</u>

             P-value = P(Z > 2.64) = 1 - P(Z < 2.64)

                           = 1 - 0.99585 = <u>0.00415</u>

Now, at 1% significance level the z table gives critical value of 2.33 for right-tailed test.

Since our test statistic is more than the critical value of z as 2.64 > 2.33, so we have sufficient evidence to reject our null hypothesis as it will fall in the rejection region due to which <em><u>we reject our null hypothesis</u></em>.

Therefore, we conclude that the mean age of Canadian businesswomen has increased.

4 0
3 years ago
Solve for x: 2x^2+3x=2
Mariulka [41]

Answer:

The answer should be -2/5

Step-by-step explanation:

Hope this helps

Have a great day

7 0
2 years ago
Read 2 more answers
if I have 10 jeans in one splits and two of them have holes in them and then I get 25 more genes how many do I have in all? This
-BARSIC- [3]
Well if this a mathematics question you only have 7 pairs of jeans but you may also have 25 genes that's only because they are two different things
5 0
2 years ago
The tree in chucks yard is 48 feet tall. How many inches tall is the tree
Alex Ar [27]
There are 12 inches per foot. If the tree is 48 feet tall, it is 48 x 12 = 576 inches tall.
8 0
3 years ago
Read 2 more answers
Claire's mother is 4 years more than twice claire's age the sum of their ages is 58 claire's age is 16,18, or 40 years and her m
Andreyy89

Answer: Claire is 18 and her mother is 40

Step-by-step explanation:

3 0
2 years ago
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