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Gnesinka [82]
4 years ago
8

A black line is shorter than a white line.the white line is shorter than a gray line. Is the black line longer or shorter than t

he gray line
Mathematics
2 answers:
vichka [17]4 years ago
6 0
The gray line is longer since the white is bigger than the black and smaller that the gray
Serga [27]4 years ago
4 0
Black is shorter than grey

Hope this helps
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2 dived by 440 eplain please
dimulka [17.4K]
2/440              Original Mathematical Expression.

1/220               Divide numerator and denominator by 2.

This equals . . .

0.004545454545 repeating

(I just plugged 1/220 into calculator)

Final Answer: 1/220 or 0.004545454545 repeating
6 0
3 years ago
How did astronomer Yi Xing (A.D. 683-727) contribute to the development of mathematics in china?
SSSSS [86.1K]

Answer:

Yi Xing invented the astronomical clock and introduced some new methods of interpolation in mathematics.

Step-by-step explanation:

Yi Xing was both an astronomer and a mathematician during the era. He invented the astronomical clock which was more accurate than the initial water and Sun's clock in use.

Furthermore, Yi Xing also discovered some new methods of interpolation in mathematics of which the meaning and interpretation became controversial. Interpolation is a method majorly in mathematics that can be used to estimate a value of a function from its discrete values. It involves first order differences and second order differences.

Also, Yi Xing was able to design a calendar in A.D. 727.

4 0
3 years ago
SOMEONE PLEASE HELP ME WITH THIS I NEED HELP PLEASE ILL GIVE BRAINLY!!!!
shepuryov [24]

Answer:

The answer is option B.

Step-by-step explanation:

B is proportional because it's adding 1/4 each time. A is not.

Hope this helps.

Please mark as brainliest.

3 0
3 years ago
Read 2 more answers
Please help me on this one.
EleoNora [17]
3(j+4)-9=9
3j + 12 -9 =9
3j +3 =9
3j =6
j=2
7 0
3 years ago
Read 2 more answers
A ball moves in a straight line has an acceleration of a(t) = 2t + 5. Find the position function of the ball if its initial velo
Vlad1618 [11]

Answer:

s(t) = frac{t^3}{3} + \frac{5t^2}{2} - 3t + 12

Step-by-step explanation:

Relation between acceleration, velocity and position:

The velocity function is the integral of the acceleration function.

The position function is the integral of the velocity function.

Acceleration:

As given by the problem, the acceleration function is a(t) = 2t + 5

Velocity:

v(t) = \int a(t) dt = \int (2t+5) dt = \frac{2t^2}{2} + 5t + K = t^2 + 5t + K

In which K is the constant of integration, which is the initial velocity. So K = -3 and:

v(t) = t^2 + 5t - 3

Position:

s(t) = \int v(t) dt = \int (t^2 + 5t - 3) = \frac{t^3}{3} + \frac{5t^2}{2} - 3t + K

In which K, the constant of integration, is the initial position. Since it is 12:

s(t) = frac{t^3}{3} + \frac{5t^2}{2} - 3t + 12

4 0
3 years ago
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