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Norma-Jean [14]
3 years ago
12

What is 5+6f =11 hhhhhhhhhhyhy

Mathematics
2 answers:
sammy [17]3 years ago
6 0

Answer:

1

Step-by-step explanation:

5+6x=11

-5       -5

6x=6

/6  /6

x=1 units

zepelin [54]3 years ago
5 0

Hello!

Answer:

\boxed{f=1}

The answer should have positive sign.

Step-by-step explanation:

First, you subtract by 5 from both sides of an equation.

5+6f-5=11-5

Then, simplify and subtract by the numbers from left to right.

11-5=6

6f=6

You divide by 6 from both sides of an equation.

\frac{6f}{6}=\frac{6}{6}

Finally, divide numbers from left to right.

6\div 6=1

\boxed{f=1}, which is our correct answer.

Hope this helps you!

Have a nice day! :)

-Charlie

Thank you so much!

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An engineer has designed a valve that will regulate water pressure on an automobile engine. The valve was tested on 110 engines
slava [35]

Answer:

we will fail to reject the null hypothesis and conclude that the mean pressure is not different from 4.7 psi

Step-by-step explanation:

Let's first define the hypothesis;

Null hypothesis: H0: μ = 4.7

Alternative hypothesis: Ha: μ ≠ 4.7

We have;

Sample size; n = 110

Sample mean; x¯ = 4.6

Variance: σ² = 0.64

Standard deviation; σ = √0.64 = 0.8

Formula for test statistic is;

z = (x¯ - μ)/(σ/√n)

z = (4.6 - 4.7)/(0.8/√110)

z = -0.1/0.0763

z = -1.31

From online p-value from z-score calculator attached, using; z = -1.31, two tailed hypothesis, significance value of 0.1, we have;

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σ μ

8 0
2 years ago
Will someone explain what i did wrong here?
tensa zangetsu [6.8K]

The actual inverse function is:

f^{-1}(x) = x^2 + 3

And the domain is [0, ∞).

<h3>Where is the mistake?</h3>

Remember that for a given function f(x) with a domain D and a range R.

For the inverse function, f⁻¹(x) the domain is R and the range is D.

Here, for the given function the domain is x ≥ 3 and the range is [0, ∞).

Then for the inverse function, which is:

f^{-1}(x) = x^2 + 3

(to check this, you must have that):

f^{-1}(f(x)) = x\\\\f(f^{-1}(x)) = x

The domain will be [0, ∞) and the range x ≥ 3

If you want to learn more about inverse functions:

brainly.com/question/14391067

#SPJ1

7 0
1 year ago
Solutions to 39=4-7v
pishuonlain [190]
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3 years ago
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When using statistics in a speech, you should usually Group of answer choices manipulate the statistics to make your point. cite
NARA [144]

Answer:

Avoid Using too many statistics

Step-by-step explanation:

when a speaker is giving a speech, the listeners prefer main points to hearing too much of statistics. Too many statistics bore the audience and sometimes divert their attentions from the crux of the speech. If statistics are to be given, they must be clearly expressed and the source should be clearly stated.

Numbers that are of large decimal points can be rounded off so as not to confuse the audience and to make them grasp the main idea.

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