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4 years ago

12

How many real roots does he function f(x)=x^2+8x-2 have? A 0 B 1 C 2 D 72

1 answer:

jarptica [38.1K]4 years ago

5 0

I might be wrong but in the calculator it says 0 so is it A

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How many years does it take to earn a million dollars if you are paid $30 an hour and work 35 hours a week for 50 weeks a year

AnnyKZ [126]

This is a Multiple Step problem.Which means that you have to do a few steps before you get the answer.First,you do,30x35,then the answer,(product)to that,you multiply that answer to 50,then find out the answer to that,then divide 1 million by that answer,then you will get the year.

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3 years ago

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PLEASE HELP!!!!!!! ALSO SHOW WORK

Dimas [21]

Answer: a) 92 yards, b) 29.29 yards and 672.99 sq. yd.

Step-by-step explanation:

Since we have given that

Area of square pen = 529 sq. yd

Let the length of each side be 'a'.

As we know the formula for "Area":

$Area=a^2\\\\529=a^2\\\\\sqrt{529}=a\\\\a=23\ yd$

So, the perimeter of the square pen is given by

$4\times s=4\times 23\\\\=92\ yd$

So, perimeter of square pen = Perimeter of round pen

$92=2\pi r\\\\92=2\times 3.14\times r\\\\\dfrac{92}{2}=3.14\times r\\\\\dfrac{46}{3.14}=r\\\\14.64=r$

So, the diameter of round pen is $2\times r=2\times 14.64=29.29\ yd$

And the area of round pen is

$\pi r^2\\\\=3.14\times (14.64)^2\\\\=672.99\ sq.\ yd$

Hence, a) 92 yards, b) 29.29 yards and 672.99 sq. yd.

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tiny-mole [99]

Answer

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Hope I helped you

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