What is 30 minutes as a percentage of an hour?

Answers

Answer 1
Answer:


 30 minutes is half of an hour so it would be 50%.


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Convert 3.2 repenting decimal into a fraction

Answers

x =3.\bar{2}\n10x = 32.\bar{2}\n\n 10x - x = 32.\bar{2} - 3.\bar{2}\n9x = 29\nx = (29)/(9)\n\n\n \boxed{\bf{(32)/(9) = 3.\bar{2}}}

Given f(x)=6x+4 and g(x)=3x+7g
then what is f(g(1)) ?

Answers

for g(x) the question must be 3x+7x.. so if it's g(x) =3x+7x than f(g(1)) will be 64

One number is 6 more than another.  Their product is is 520.  Find the numbers

Answers

xy=520 & y=x+6
xy = x*(x+6) = x^2 + 6x
x^2+6x-520 = 0

=> x = {-26, 20}

When x = -26, y = -20
          x = 20, y = 26

Answer:

it was the answer the above comment

Step-by-step explanation:

what is an equation of the line that passes through the point (4,5) and is parallel to the line whose is equation is y=2/3x-4

Answers

Answer:

y = 2/3x + 7/3

Step-by-step explanation:

We know

The line pass through the point (4,5)

The equation is: y = 2/3x - 4

m = 2/3

To solve this, we can use the fact that parallel lines have the same slope. Since the parallel line we're looking for has the same slope, we can use the point-slope form of a linear equation to find its equation:

y - y1 = m(x - x1)

y - 5 = 2/3(x - 4)

y - 5 = 2/3x - 8/3

y = 2/3x + 7/3

So, the answer is y = 2/3x + 7/3

What is estimate 4.23-2.51

Answers

the answer is 1.72 and it would be 2 if u estimated
I just subtract 4.23-2.51 then I got the answer
the answer is 1.72

Where in real life do people use parabolas?
*apart from maths classrooms and mathematicians.

Answers

The mirrors of reflecting telescopes are parabolas.
The microwave "dish" antennas on cell towers are parabolas. So are the little dishes on garage roofs and the corners of houses, receiving satellite TV all over the country.
The shell behind the light bulb in every car headlight is a parabola.