2 years ago

What is the mean of the normal distribution shown below?

Mathematics

1 answer:

dolphi86 [110]2 years ago

7 0

Answer:

Step-by-step explanation:

thx

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A pair of roller skates is discounted by 40%. The normal price is $65. What is the discounted price?

butalik [34]

Answer:$39

Step-by-step explanation:

The discounted price is going to be 60% of the original price because 100 - 40 = 60. So we want to find 60% of the original price, or 65. 65 x . 6 = 39, so the pair of rollerskates will be $39 at the discounted price.

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3 years ago

What's 100000000 x 2366644?<br> Write your Answer!<br> Also, I'm not a bot I'm a new user owo

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Answer:

236664400000000

Step-by-step explanation:

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3 years ago

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G. a car travels at 60m/s for 50minutes <br> south west.calculate how far it will travel

Tju [1.3M]

Step-by-step explanation:

first we want to convert it to minutes so we multiply 60m/s by 60. 3600m/min or 3.6km/min

we just multiply 50 by 3.6.

therefore the car travels 180km south west

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2 years ago

You cut a board into pieces that are 1/3 ft long. If the board is 5 ft how many pieces will you have

daser333 [38]

Answer:

Step-by-step explanation:

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3 years ago

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Which are the solutions of the quadratic equation?

Artemon [7]

Answer:

$x_1=\frac{7+\sqrt{65}} {2}$

$x_2=\frac{7-\sqrt{65}} {2}$

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$x^{2}=7x+4$

equate to zero

$x^{2}-7x-4=0$

$a=1\\b=-7\\c=-4$

substitute in the formula

$x=\frac{-(-7)\pm\sqrt{-7^{2}-4(1)(-4)}} {2(1)}$

$x=\frac{7\pm\sqrt{65}} {2}$

therefore

$x_1=\frac{7+\sqrt{65}} {2}$

$x_2=\frac{7-\sqrt{65}} {2}$

StartFraction 7 minus StartRoot 65 EndRoot Over 2 EndFraction comma StartFraction 7 + StartRoot 65 EndRoot Over 2 EndFraction

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4 years ago

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