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suter [353]
3 years ago
8

Which equation shows how the relationship between the circumference and the diameter of a circle is equivalent to π?

Mathematics
1 answer:
Natalija [7]3 years ago
3 0

Answer:

The answer to your question is: I think is letter C

Step-by-step explanation:

Formula of circumference

                                           C = 2πr

where

C = circumference

r = radius

d = diameter

and

r = d/2

then

                                        C = 2 π d/2

                                        C = πd

                                        π = C/d     It is a division

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Solve the inequality 42<-6d
pentagon [3]

Answer:

d < - 7

Step-by-step explanation:

given

42 < - 6d ( divide both sides by - 6 )

Remembering to reverse the inequality symbol as a consequence

- 7 > d ⇒ d < - 7

6 0
3 years ago
(x^2+3x-7)(2x-5) write in standard form
Gnoma [55]
Hi there!
The question is asking us to simplify the expression (x² + 3x - 7)(2x - 5) and write the answer in standard form. Here is how you do that - 
Original: (x² + 3x - 7)(2x - 5)
Break it apart - [(x² + 3x - 7)(2x)] + [(x² + 3x - 7)(-5)]
Simplify - 
2x³ + 6x² - 14x - 5x² - 15x + 35
Now, combine like terms - 
2x³ + x² - 29x + 35
Therefore, the answer to your query is 2x³ + x² - 29x + 35. Hope this helps!
7 0
3 years ago
What is the measurement
Blizzard [7]

Answer:

X=135 degrees

Step-by-step explanation:

the total interior angle of a triangle is 180.

To work this out you would first add the interior angles of B which is 69 and the interior angle of C which is 66, which gives you 135.

The next step is to minus 135 from 180, which gives you 45. This is because the total interior angle of a triangle is 180.

Then to work out the angle of x you would minus 45 from `180, which gives you 135. This is because the total angle in a straight line is 180 degrees.

1) Add the angles of 69 and 66.

69+66=135\\

2) Minus 135 from 180.

180-135=45

3) Minus 180 from 45.

180-45=135 degrees

3 0
3 years ago
Which of these figures has rotational symmetry?
UkoKoshka [18]
C. 
If you spin it around 180 degrees from the center, it's the same object
3 0
3 years ago
Read 2 more answers
ONLY ANSWER IF YOU KNOW THE ANSWER JUST FOR POINTS. Thank you! :)
Ksivusya [100]
Since triangle DEF = triangle JKL, m<D = m<J, m<E = m<K, m<F = m<L.
m<F = m<L = 90 degrees
m<K = m<E = 5(m<D)
but m<E + m<D = 90 degrees        [right angled triangle]
5(m<D) + m<D = 90 degrees
6(m<D) = 90 degrees
m<D = 90 / 6 = 15 degrees.
5 0
3 years ago
Read 2 more answers
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