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KengaRu [80]
3 years ago
8

Ms. Diaz needs to purchase pencils for the

Mathematics
1 answer:
vlada-n [284]3 years ago
5 0

Answer:

the answer is b

Step-by-step explanation:

because it is the best deal

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Every possible cross section of a three-dimensional figure is a circle. What is the figure?
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A cross section is the shape we get when cutting straight through an object. In geometry it is the shape made when a solid is cut through by a plane. cylinder cross section.The cross section of this circular cylinder is a circle.
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Manuel spins a spinner with 10 sections. The sections are numbered 1 through 10, and all sections are the same size. What is the
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the answer is b

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How did astronomer Yi Xing (A.D. 683-727) contribute to the development of mathematics in china?
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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.

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3 years ago
A certain drug is made from only two ingredients: compound a and compound
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The picture explains it
Vsevolod [243]

Answer:

60

Step-by-step explanation:

you know that if one line is perpendicular to another line, and another line is perpendicular to that line, they are all perpendicular (90). so, all corners are right angles. that means that angle AGD is 90. so, if you know 30, then subtract 30 from 90 and you get that angle AGF is 60. then, because angle AGF and angle EGB are vertical angles, they are congruent, so x is 60.

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