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Svetradugi [14.3K]
3 years ago
12

A machine made 3 1/2 pencils in 1/6 of a minute. It made at a rate of how many per minute?

Mathematics
1 answer:
andrew11 [14]3 years ago
8 0

Answer:

21 per min

Step-by-step explanation:

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I need doing this please ?
Alex17521 [72]

Answer:

i do not know

Step-by-step explanation:

sorry

3 0
2 years ago
(0.00032)(5.2x10^6)/6.4x10^5
Elena-2011 [213]

Answer:

26000000

Step-by-step explanation:

sorry if its wrong

7 0
3 years ago
Explain why a quadratic equation with a positive discriminant has two real solutions, a quadratic equation with a negative discr
Bad White [126]

Answer:

A quadratic equation can be written as:

a*x^2 + b*x + c = 0.

where a, b and c are real numbers.

The solutions of this equation can be found by the equation:

x = \frac{-b +- \sqrt{b^2 - 4*a*c} }{2*a}

Where the determinant is D = b^2 - 4*a*c.

Now, if D>0

we have the square root of a positive number, which will be equal to a real number.

√D = R

then the solutions are:

x = \frac{-b +- R }{2*a}

Where each sign of R is a different solution for the equation.

If D< 0, we have the square root of a negative number, then we have a complex component:

√D = i*R

x = \frac{-b +- C*i }{2*a}

We have two complex solutions.

If D = 0

√0 = 0

then:

x = \frac{-b +- 0}{2*a} = \frac{-b}{2a}

We have only one real solution (or two equal solutions, depending on how you see it)

3 0
3 years ago
A student received a coupon for 17% off the total purchase price at a clothing store. Let c be the
lys-0071 [83]
C - 0.17c = 0.83c
When you write “c” at the start, or x or whatever, it has an understood (invisible) number 1. So you’re subtracting the decimal on the next variable from 1.
7 0
3 years ago
How tall is tent at the peaking of the opening with the bottom being 8 feet in each side being 10 feet
irakobra [83]
A= bh divide by 2 so you'll multiply 10x8 the product would be 80 and so you divide 80 by 2 and get 40 as your result.
6 0
3 years ago
Read 2 more answers
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