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Mrac [35]
4 years ago
8

Solve for x. 12x+14=8x-82

Mathematics
2 answers:
dusya [7]4 years ago
5 0

Answer:

x=-24

Step-by-step explanation:

nikdorinn [45]4 years ago
3 0

Answer:

x =28

Step-by-step explanation:

12x - 8x =14+82

4x = 98

1x = 28

x = 28

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Square root of 7x plus the square root of 28x
NISA [10]
\sqrt{7x} + \sqrt{28x} \\\sqrt{7x} + \sqrt{4 * 7x} \\\sqrt{7x} + \sqrt{4}\sqrt{7x} \\\sqrt{7x} + 2\sqrt{7x} \\3\sqrt{7x}
5 0
3 years ago
A/b = c for b help me please this alot of a points please
tatuchka [14]
Simple....

you have:

\frac{a}{b} =c

You're trying to find b..so isolate it...

b* \frac{a}{b} =c*b

leaving you

a=c*b

still not done....

\frac{a}{c} = \frac{c*b}{c}

\frac{a}{c} =b

Thus, your answer.

4 0
4 years ago
Read 2 more answers
|x-7|+5 is greater than or equal to 3
jonny [76]
\large\begin{array}{l} \textsf{Solve the absolute value inequality:}\\\\ \mathsf{|x-7|+5\ge 3}\\\\ \mathsf{|x-7|\ge 3-5}\\\\ \mathsf{|x-7|\ge -2}\\\\\\ \textsf{Since absolute values always give a non-negative number,}\\\textsf{every real value for x satisfies the inequatily:}\\\\ \textsf{For all }\mathsf{x\in\mathbb{R},}\\\\ \mathsf{|x-7|\ge 0>-2}\\\\\\ \therefore~~\mathsf{|x-7|\ge 2}\\\\ \textsf{regardless of the value of x.} \end{array}


\large\begin{array}{l} \textsf{Solution set: }\mathsf{S=\mathbb{R}.} \end{array}


If you're having problems understanding this answer, try seeing it through your browser: brainly.com/question/2180151


\large\textsf{I hope this helps. :-)}


Tags: <em>absolute value inequatily solve solution algebra</em>

6 0
3 years ago
Use the normal distribution and the given sample results to complete the test of the given hypotheses. Assume the results come f
AlladinOne [14]

Answer:

z=\frac{0.64 -0.5}{\sqrt{\frac{0.5(1-0.5)}{75}}}=2.43  

Now we can calculate the p value with the following probability:

p_v =P(z>2.43)=0.0075 \approx 0.008  

Since the p value is lower than the significance level we have enough evidence to reject the null hypothesis and we can conclude that the true proportion for this case is higher than 0.5

Step-by-step explanation:

Data given and notation

n=75 represent the random sample taken

\hat p=0.64 estimated proportion of interest

p_o=0.5 is the value that we want to test

\alpha=0.05 represent the significance level

Confidence=95% or 0.95

z would represent the statistic

p_v represent the p value

System of hypothesis

We want to verify if the true proportion is higher than 0.5:  

Null hypothesis:p =0.5  

Alternative hypothesis:p > 0.5  

The statistic is given by:

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

Replacing the info given we got:

z=\frac{0.64 -0.5}{\sqrt{\frac{0.5(1-0.5)}{75}}}=2.43  

Now we can calculate the p value with the following probability:

p_v =P(z>2.43)=0.0075 \approx 0.008  

Since the p value is lower than the significance level we have enough evidence to reject the null hypothesis and we can conclude that the true proportion for this case is higher than 0.5

7 0
4 years ago
Plzz give an example <br><br> how do you round to the nearest cubic
elixir [45]
round you volume measure to a whole number. like if it was 80.4 it would be 80
8 0
3 years ago
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