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klasskru [66]
3 years ago
11

I need help on this question ​

Mathematics
2 answers:
Anna [14]3 years ago
4 0
In order for x to be alone first you have to add 4 to both sides(which would cancel out -4) making it 2x=22 now you have to divide 2 from both sides making it x=11 so for the operations used I am sure it’s addition and division. Hope that helped!
Musya8 [376]3 years ago
3 0
1. added four to both sides
2. divided both sides by two
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Someone please help me on this ASAP
AlekseyPX

Answer:

Step-by-step explanation:

Where is the question?

4 0
3 years ago
467.127 to the nearest 100
mina [271]

<h2><u>PLEASE MARK BRAINLIEST!</u></h2>

Answer:

Let's find out!

Step-by-step explanation:

There are 2 ways:

To the nearest <em>hundrED</em>,<em> </em>your answer is 500.00, because 467 rounds up to 500.

To the nearest <em>hundrEDTH</em>, your answer is 467.13 because 0.127 rounds up to 0.13

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3 years ago
What is thesimlified form of sqrt(48n^9)
garik1379 [7]
4n^4 √3n I believe would be the simplified form.
4 0
4 years ago
Evan and Riley are detectives at the Super Sleuths Detective Agency. Even solved 7/9 of the mysteries last year. Riley solved 14
Kobotan [32]

Answer:

Step-by-step explanation:

Let the number of mysteries solved=x, then according to question, number of mysteries Evan solved=\frac{7}{9}x, also together they solve all the mysteries, thus

14+\frac{7}{9}x=x

14=x-\frac{7}{9}x

14=\frac{9x-7x}{9}

14=\frac{2x}{9}

2x=126

x=63

Thus, total number of mysteries solved=63.

Also, total number of mysteries Evan solved=\frac{7}{9}x= \frac{7}{9}{\times}63=49.

5 0
3 years ago
A magazine provided results from a poll of 500 adults who were asked to identify their favorite pie. Among the 500 ​respondents,
RoseWind [281]

Answer:

The statement that​ "the margin of error was given as \pm5 percentage​ points" means that the population proportion is estimated to be with a certain level of confidence, within the interval \hat{p} \pm 0.05 ; where \hat{p}[tex] is the sample's proportion. The correct answer is C. The statement indicates that the interval [tex]0.14\pm0.05 is likely to contain the true population percentage of people that prefer chocolate pie.

Step-by-step explanation:

The margin of error for proportions is given by the following formula:

z_{\alpha /2}\times\sqrt{\frac{\hat{p}\times(1-\hat{p})}{n}}

Where:

z_{\alpha /2} is the critical value that corresponds to the confidence level; the confidence level being 1-\alpha,

\hat{p} is the sample's proportion of successes,

n is the size of the sample.

In this exercise we have that \hat{p}=0.14 and that the margin of error is 0.05.

Therefore if we replace in the formula to calculate the confidence interval we get:

\hat{p}\pm 0.05=0.14\pm0.05=(0.09, 0.19)

Which means that the true population proportion is estimated to be, with a certain confidence level, within the interval (0.09, 0.19).

7 0
3 years ago
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