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ivanzaharov [21]
3 years ago
9

Find the difference. (−r−10)−(−4r2+r+7)

Mathematics
1 answer:
serious [3.7K]3 years ago
4 0
-2r + 4r2 - 17 OKCBFBCCC
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A factory produces 6 motorcycles in 9 hours. Find how many hours it takes to produce 16 motorcycles at this rate
Allushta [10]

Answer: 24 Hours

Step-by-step explanation:

6 Motorcycles = 9 Hours

divide the hours by the motorcycles and you get 1.5, so that is how long it takes for one motorcycle.

Multiply 16 by 1.5 and you get 16 Motorcycles in 24 Hours

6 0
3 years ago
In music theory, a musical chord is named according to its roots, or its first root. by knowing the root of a chord, a musician
kirill [66]

The roots of a polynomial function tells us about the position of the equation on a graph and the roots also tells us about the complex and imaginary roots. So, Roots of chords are similar to the roots of polynomial functions.

A real root of a polynomial function is the point where the graph crosses the x-axis (also known as a zero or solution). For example, the root of y=x^2 is at x=0.

Roots can also be complex in the form a + bi (where a and b are real numbers and i is the square root of -1) and not cross the x-axis. Imaginary roots of a quadratic function can be found using the quadratic formula.

A root can tell you multiply things about a graph. For example, if a root is (3,0), then the graph crosses the x-axis at x=3. The complex conjugate root theorem states that if there is one complex root a + bi, then a - bi is also a complex root of the polynomial. So if you are given a quadratic function (must have 2 roots), and one of them is given as complex, then you know the other is also complex and therefore the graph does not cross the x-axis.

So, The roots of a polynomial function tells us about the position of the equation on a graph and the roots also tells us about the complex and imaginary roots. So, Roots of chords are similar to the roots of polynomial functions.

Learn more about POLYNOMIAL here

brainly.com/question/7693326

#SPJ4

6 0
2 years ago
In his free time, Gary spends 11 hours per week on the Internet and 11 hours per week playing video games. If Gary has five hour
Tpy6a [65]

Answer:

62.8% OR 0.628

Step-by-step explanation:

11 hours playing video games

11 hours on the Internet

11 + 11 = 22

5 hours of free time each day

7 days in a week

5 x 7 = 35

22/35 hours are spent

That is 0.62857142857 or I just mathmatically rounded to 0.628

0.628 into a fraction is 62.8%

6 0
3 years ago
So can someone just help me solve this and tell me which terms belong together....ty-
miss Akunina [59]
48, -5, 37, and 5 go together
8 0
3 years ago
8. A pyramid has a volume of 8 cubic feet. The height is 2 feet. The base is rectangular. Give possible dimensions for the lengt
jeka57 [31]

Answer:

base = 12 ft²

The base could be 3 ft x 4 ft, 6 ft x 2 ft, etc.    (any numbers multiplied together = 12)

Step-by-step explanation:

volume = 1/3bh

8 = 1/3b(2)

multiply both sides of the equation by 3:

24 = 2b

b = 12 ft²

8 0
3 years ago
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