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3 years ago

Which of the following best describes the term constructions in geometry?

Mathematics

1 answer:

hodyreva [135]3 years ago

4 0

The options in this question are missing; here is the complete question:

Which of the following best describes the term constructions in geometry?

A. Combining two or more figures together to create a new figure or shape.

B. A way to draw precise figures using a compass and a straightedge.

C. Creating a figure or shape by hand.

D. Places where things are being built that often slow down traffic.

The answer to this question is B. A way to draw precise figures using a compass and a straightedge.

Explanation:

Geometry is a sub-field of mathematics that studies figures, lines, angles, and related features. In this, the term "construction" describes the creation of figures by using a straight edge such as a ruler, a compass (object to draw circles or arcs and measure distances), and a pen, pencil, or similar instrument to draw. For example to draw or construct a circle a compass is mainly used while the construction of a hexagon requires a straight edge and compass. According to these ideas, the correct answer is B.

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Find the area of a triangle and semi circle where the diameter is 18 and the height is 14 using 3.14

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Answer:

triangle A= 1/2bh

1/2(18)(14)= 126

semi circle 3.14(9)^2 divided by 2 = 127.17

Triangle Area plus semi circle Area = 126+127.17= 253.17

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3 years ago

Write an expression that is equivalent to 3/5 (3y+15) 3/5y +9, 3/5y+15, 9/5y+9, 9/5y + 15?

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Given the expression

$\frac{3}{5} (3y+15)$

The expression that is equivalent to the given expression is given by:

$\frac{3}{5} (3y+15)= \frac{9}{5} y+ \frac{3}{5} (15)= \frac{9}{5} y+9$

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3 years ago

Determine if the following table represents a quadratic function.

snow_tiger [21]

Answer:

The options are not visible enough (See Explanation)

Step-by-step explanation:

Given

x:- 1 || 2 || 3 || 4 || 5

y:- 13 || 22 || 37 || 58 || 85

Required

Determine if the function is quadratic

Calculate the difference between the values of y

$Difference = 22 - 13 = 9$

$Difference = 37 - 22 = 15$

$Difference = 58 - 37 = 21$

$Difference = 85 - 58 = 27$

The resulting difference are: 9 || 15 || 21 || 27

Next; Calculate the difference between the difference of values of y

$Difference = 15 - 9 = 6$

$Difference = 21 - 15 = 6$

$Difference = 27 - 21 = 6$

The resulting difference are: 6 || 6 || 6

For the function to be quadratic, the above difference must be the same and since they are the same (6), then the function represents a quadratic function.

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4 years ago

The average of three numbers is 22. the average of two numbers is also 22. what is the value of the third number in the original

IRINA_888 [86]

Answer:

Step-by-step explanation:

If the average wasn't shifted at all, that means the third value must've been the same as the average to not shift it.

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4 years ago

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