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Artyom0805 [142]
3 years ago
6

PLEASE EXPLAIN WHAT YOU DID!!!!!

Mathematics
1 answer:
marysya [2.9K]3 years ago
8 0
To find the height of the box, you will use the formula for finding volume of a prism and solve for the height.

V = Bh, where B is the area of the base

439.2 = 1/2 x 6.9 x 18 x h
439.2 = 62.1h
h = 7.07

The height of the triangular prism is approximately 7.07 inches.

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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
Given A(-9,-12), B(-2,2), C(x,6) D, "-5,-2)," find the value of x so that AB is parallel to CD
Dima020 [189]

Answer:

hi thanks

Step-by-step explanation:

4 0
3 years ago
How to find the area only of a triangle
Cloud [144]
Area= height(base)/2
7 0
3 years ago
Greg's grandmother is knitting scarves for charity. The table shows the number of yards needed for different types of scarves.
Cerrena [4.2K]
The charity will make $367 and 5 cents
3 0
2 years ago
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The circle given by
mixer [17]
Typically, the equation of a circle is given like this: (x-h)^2 + (y-k)^2 = r^2, where r is the radius of the circle and the point (h,k) is the center. To find the value k, you need to put the first equation you have into this form. Standard form requires that you only have the1 y variable, as seen in the parentheses, so you first need to complete the square.

x^2 + y^2 - 2y = 11
x^2 + y^2 - 2y +1 = 11 + 1
x^2 + (y - 1)^2 = 12

And that puts the equation in standard form. k = 1.
5 0
3 years ago
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