4 years ago

A table is on sale for 28% off. The sale price is $414. What is the regular price?

Mathematics

1 answer:

ycow [4]4 years ago

5 0

Answer:

it would be 298.08

Step-by-step explanation:

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Why is my brainly account not getting deleted even after a waiting long time?

OLga [1]

Answer:

Mine hasn't been either.

Step-by-step explanation:

Why do you want it deleted? Maybe email an administrator.

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3 years ago

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The number 2601 unsquared

alexira [117]

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4 years ago

The diameter of a circle is 20m <br> Find the circumference to the nearest tenth

Mnenie [13.5K]

Answer:

C = 62.8 m

Step-by-step explanation:

The circumference formula is C = πd.

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3 years ago

The perimeter of an equilateral triangle is 18p - 24. Write an expression to represent the length of each side.

almond37 [142]

6p
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4 years ago

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9.50 One way to evaluate the effectiveness of a teaching assistant is to examine the scores achieved by his or her students on a

EleoNora [17]

Answer:

Step-by-step explanation:

Given that a professor sets a standard examination at the end of each semester for all sections of a course. The variance of the scores on this test is typically very close to 300.

$H_0: s^2 = 300\\H_a: s^2 \neq 300$

(Two tailed test for variance )

Sample variance =480

We can use chi square test for testing of hypothesis

Test statistic = $\frac{(n-1)s^2}{\sigma^2} \\=62.4$

p value = 0.0100

Since p <0.05 our significance level, we reject H0.

The sample variance cannot be claimed as equal to 300.

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3 years ago