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Iteru [2.4K]
2 years ago
7

2) The subtotal of your computer purchase was $398.50. If the sales tax rate is

Mathematics
1 answer:
Vanyuwa [196]2 years ago
7 0

Answer:

54.97

Step-by-step explanation:

You would take the original number and divide by the second number (tax percentage) to get how much you would pay in tax for the computer

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How do I know if it’s similar, congruent or neither?
Phantasy [73]

Answer:

These two triangles are congruent.

Step-by-step explanation:

You know this bc the markings on the drawing show that Angle B and Angle D are congruent. Also that AB is parallel to CD. This means that Angle BAC and Angle DCA are congruent by ALTERNATE INTERIOR ANGLES. Also, AC is congruent to itself. That makes the two triangles congruent by ANGLE-SIDE-ANGLE.

Now, you need to know that "congruent" triangles (and shapes in general) are the same size and shape. "Similar" triangles (shapes) are the same shape but not necessarily the same size.

5 0
2 years ago
Are standardized scores and z-scores the same thing?.
tatyana61 [14]

Answer:

Yes

Step-by-Step

Z-scores are also known as standardized scores. They are scores that have been given a common standard

4 0
2 years ago
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How to show how to find the answer to -3 +4 -1
Fittoniya [83]

Answer:it’s 0

Step-by-step explanation:

You do -3 plus 4 and then minus 1 which would be 0

5 0
2 years ago
What is the intersection of the given lines AE and DE?
cricket20 [7]

Given statement is "What is the intersection of the given lines AE and DE?".

That gives us information that there are two lines named AE and DE which intersect each other. Now we have to find their intersection point.


If you see carefully the name of both lines AE and DE then you will find that; they have common letter "E" in their name.

That means point "E" lies on both lines.

We know that intersection point always lies on both lines.

Which proves that point "E" is the intersection point.


Hence choice "<u>B. Point E" </u>is the final answer.

7 0
2 years ago
Thirty-three college freshmen were randomly selected for an on-campus survey at their university. The participants' mean GPA was
Ivan

Answer: \pm0.1706

Step-by-step explanation:

Given : Sample size : n= 33

Critical value for significance level of \alpha:0.05 : z_{\alpha/2}= 1.96

Sample mean : \overline{x}=2.5

Standard deviation : \sigma= 0.5

We assume that this is a normal distribution.

Margin of error : E=\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

i.e. E=\pm (1.96)\dfrac{0.5}{\sqrt{33}}=\pm0.170596102837\approx\pm0.1706

Hence, the  margin of error is \pm0.1706

7 0
3 years ago
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