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erma4kov [3.2K]
3 years ago
15

Whats 39/7. i need a answer.

Mathematics
2 answers:
Dahasolnce [82]3 years ago
7 0

I put a screenshot for you

Alex Ar [27]3 years ago
4 0

Answer:

5.57142857143 there you go hopefully it's the answer you need

You might be interested in
What is the difference between a repeating decimal and a terminating decimal?
Pani-rosa [81]

Answer:

Terminating decimals have a finite number of digits after the decimal point while Repeating decimals have one or more numbers or sequences of repeating numbers after the decimal point.

If you found this helpful please give me branliest.

8 0
3 years ago
A 150 cm pendulum swings through an arc which measured 100pi cm. In exact radians, through what angle does it swing?
choli [55]

Answer:

Pendulum will swing by an angle 0.666π

Step-by-step explanation:

We have given arc = 100\pi cm

And length of the pendulum l = 150 cm

Length of the pendulum will be equal to radius of the pendulum so r = 150 cm

Arc is given by arc=radius\times angle

So 100\pi =150\times\times  \Theta

\Theta =0.666\pi

So pendulum will swing by an angle 0.666π

5 0
3 years ago
hi there answer both question and I will make you brinliest of the brainliest also PLEEEASE show each and every step of how you
Troyanec [42]

Answer:

i think it is A, C, OR B, **For the first equation**

Step-by-step explanation:

SRRY IF WRONG!

6 0
1 year ago
A radio telescope has a parabolic surface, as shown below.
krek1111 [17]
OK, so the graph is a parabola, with points x=0,y=0; x=6,y=-9; and x=12,y=0

Because the roots of the equation are 0 and 12, we know the formula is therefore of the form

y = ax(x - 12), for some a

So put in x = 6

-9 = 6a(-6)

9 = 36a

a = 1/4

So the parabola has a curve y = x(x-12) / 4, which can also be written y = 0.25x² - 3x

The gradient of this is dy/dx = 0.5x - 3

The key property of a parabolic dish is that it focuses radio waves travelling parallel to the y axis to a single point. So we should arrive at the same focal point no matter what point we chose to look at. So we can pick any point we like - e.g. the point x = 4, y = -8

Gradient of the parabolic mirror at x = 4 is -1

So the gradient of the normal to the mirror at x = 4 is therefore 1.

Radio waves initially travelling vertically downwards are reflected about the normal - which has a gradient of 1, so they're reflected so that they are travelling horizontally. So they arrive parallel to the y axis, and leave parallel to the x axis.

So the focal point is at y = -8, i.e. 1 metre above the back of the dish.
5 0
2 years ago
Hi Mariceo, when you submit this form, the owner will be able to see your name and email address.
Andreyy89
So you can see my email address? Haha sure...
6 0
2 years ago
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