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3 years ago

Solve for x if 523x = 523. please

Mathematics

2 answers:

Olenka [21]3 years ago

8 0

Answer:

x = 1

Step-by-step explanation:

523x = 523

Divide each side by 523 to get the x alone

523/523 = 1

vfiekz [6]3 years ago

7 0

Answer:

x=1

Step-by-step explanation:

To get x by itself you need to divide 523 by the other side of the equal sign so divide 523 by 523 which is 1.

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In a recent study of statistics students, a random sample of students were asked to provide the number of hours per week they sp

Airida [17]

Answer:

$ME=\frac{Upper-Lower}{2}= \frac{8.15-6.55}{2}= 0.80$

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

$\bar X$ represent the sample mean for the sample

$\mu$ population mean (variable of interest)

s represent the sample standard deviation

n represent the sample size

Solution to the problem

The confidence interval for the mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

For this case the confidence interval is given by (6.55,8.15). And we can estimate the margin of error with this formula since the confidence interval is symmetrical:

$ME=\frac{Upper-Lower}{2}= \frac{8.15-6.55}{2}= 0.80$

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3 years ago

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aleksley [76]

Answer:

Step-by-step explanation:

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3 years ago

Compare the decimals 56.07 and 56.7. Which comparison is correct? A. 56.07 > 56.7 B. 56.07 = 56.7 C. 56.07 < 56.7

Mice21 [21]

C. 56.07 < 56.7 could be right.

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3 years ago

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Oliga [24]

Answer:

B. (x, y) → (-x,-y)

This rule is given triangle is reflection about origin or

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Step-by-step explanation:

<u>Explanation:-</u>

A triangle has coordinates at X(3,7),Y(6,7) and Z(4,2)

The Rule ( x, y)→ ( - x, -y)

<em>This rule is given triangle is reflection about origin or Rotation clockwise or counter clock wise with 180°</em>

X( 3,7) → X¹ ( -3,-7)

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Z(4,2) → Z¹( -4 ,-2)

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3 years ago

Find the equation f(x) = a(x - h)2 + k for a parabola containing point (3, 6) and having (1, -2) as a vertex. What is the standa

pashok25 [27]

the 1 is the h and the -2 is the k

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6 =a *2^2 -2

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