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Alja [10]
3 years ago
15

Elena said the equation 9x+15=3x+15 has no solutions because 9x is greater than 3x. Do you agree with Elena? Explain your reason

ing.
Mathematics
2 answers:
baherus [9]3 years ago
8 0

Answer:

Disagree

Step-by-step explanation:

You can solve this problem by doing as follows:

9x+15=3x+15

-3x        -3x

=

6x+15=15

-15        -15

=

6x=0

Although x=0, x=0 is still a solution to the problem.

erik [133]3 years ago
5 0

Answer:

yes

Step-by-step explanation:

any number times nine will be greater if you times the same number by three,

ex:

9(5)+15=60

3(5)+15=30

9x+15 > 3x+15

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sergejj [24]

Answer:

C. Radius or diameter must be known.

Step-by-step explanation:

The radius or diameter must be known so you can use the formula.

Hope this helps!

4 0
2 years ago
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
nika2105 [10]

Step-by-step explanation:

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3 years ago
Mathematical Statistics with Applications Help Homework
Mars2501 [29]

7.43: Let X denote the random variable for height and \overline X for the sample mean. Then if \mu is the mean of

So the probability that the difference between the sample and population means does not exceed 0.5 inch is

P(|\overline X-\mu|\le0.5) = P\left(\left|\dfrac{\overline X-\mu}{0.25}\right|\le\dfrac{0.5}{0.25}\right) = P(|Z|\le 2) \approx \boxed{0.95}

per the empirical or 68/95/99.7 rule.

7.44: For a sample of size <em>n</em>, the sample standard deviation would be \frac{2.5}{\sqrt n}. We want to find <em>n</em> such that

P(|\overline X-\mu| < 0.4) = 0.95

Comparing to the equation from the previous part, this means we would need

\dfrac{0.4}{\frac{2.5}{\sqrt{n}}} = 0.16\sqrt n = 2 \implies \sqrt n = 12.5 \implies n = 156.25

so a sample of at least 157 men would be sufficient.

7 0
3 years ago
A-35<br> b-15<br> c-20<br> d-40<br> all the help will be appreciated &lt;3
grandymaker [24]
The answer would be a
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3 years ago
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BRAINLIEST + 30PTS<br><br> Use the form x^m • x^n = x^m+n<br><br> to solve for (x2y)(x3y4) = x^5y^5
Dimas [21]

Step-by-step explanation:

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3 years ago
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