2 years ago

3. Which of the following is a true statement?

Mathematics

1 answer:

Bingel [31]2 years ago

5 0

The answer will be b3x4 the top

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A random sample of size n1 = 16 is selected from a normal population with a mean of 75 and standard deviation of 8. A second ran

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3 years ago

A book seller gains 30% on the cost price by selling a book for $130.Calculate the cost price of the book.

zlopas [31]

Answer:

Let the cost price be x

Selling price, S.P. = 130
Gain % = 30%

$\rm{C.P. = \dfrac{S.P. \times 100}{100+ gain \% }}$

$\rm{C.P. = \dfrac{130 \times 100}{100+30}}$

$\rm{ C.P. = \dfrac{130}{30} }$

$\large{\boxed{\rm{ C.P. = \dfrac{13}{3}}}}$

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2 years ago

Customers at the Palace Pro Shop receive a 10% discount if they are members. All customers must pay 7% in sales tax. The functio

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0.963

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3 years ago

The distance between points (1, 1) and (4, 7) is 6.71. is it true or false

svet-max [94.6K]

To determine whether the statement is true or false, we need to calculate for the distance of the two points. To do this, we can use the pythagorean theorem as follows:

d = √[(y2-y1)^2 + (x2-x1)^2]
d = √[(7-1)^2 + (4-1)^2]
d = √[(6)^2 + (3)^2]
d = 2√13 = 7.21

Therefore, the statement is false.

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3 years ago