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kondor19780726 [428]
3 years ago
11

All polyhedrons are prisms or pyramids. True or false

Mathematics
2 answers:
JulsSmile [24]3 years ago
3 0

Answer:

Step-by-step explanation:

False (APEX)

Galina-37 [17]3 years ago
3 0

Answer:

Answer of given Statement is False.

Step-by-step explanation:

We know that

Polyhedron is a Solid figure entirely made up up of polygons.

for example: cube, cuboid, soccer ball, etc

Prism is a solid figure with two equal bases.

for example: Cube. Cuboid, Cylinder, etc

Pyramid is a polyhedron with a base and an Apex at top.

for example: Cone, triangle based pyramid, etc

Since, Cylinder is a Prism but it is not a polyhedron. Also Cone is pyramid but it is not a polyhedron,

Therefore, Answer of given Statement is False.

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Find the equation of the line that is parallel and passes through the point (9,6) find the equation of the line perpendicular
masya89 [10]
Any line parallel to this line can be written as y=-2/3x+c and passes through (9,6).thus 6=-2/3(9)+c.c-6=6.c=12.equation is y=-2/3x+12.
3 0
3 years ago
Given the table below, determine which type of equation best models the data and use a calculator to find an equation of best fi
irina1246 [14]

Answer:

Hello,

Step-by-step explanation:

Best fit: quadratic y=5.3x²-9.3+6.1

with an total error  of 0.4

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4 0
2 years ago
Solve the system of linear equations. <br> −8x+5y=26<br> 9x−3y=−3
Sloan [31]

Answer: x = 3 and y = 10

Step-by-step explanation:

-8x + 5y = 26     .................. equation 1

9x - 3y = -3          ................ equation 2

Solving the system of linear equations by elimination method.

The means we have to make the coefficient of one of the variable the same in order to eliminate the variable first.

Let us eliminate the variable y first , this means we will multiply equation 1 by 3 and multiply equation 2 by 5. Doing this , we have

-24x + 15y = 78      ............. equation 3

45x - 15y = -15     ................ equation 4

Now that we have the same coefficient , we have to check their signs , if the have the same signs , we will subtract , that is , if both are having positive signs , we will subtract , if both have negative signs , we will also subtract but if their signs differ we will add. Following this rule and considering the equations above , the coefficients of y have different signs , so we will add equation 3 and equation 4 , so we have:

21x = 63

x = 63/21

x = 3

Substitute x = 3 into equation 1 or equation 2 to get the value of y , using equation 2 , we have

9x - 3y = -3

9(3) - 3y = -3

27 - 3y = -3

27+3 = 3y

30 = 3y

30/3 = y

Therefore y = 10

Therefore : x = 3 and y = 10

8 0
3 years ago
If f(x) = x2 + 4x - 12, find f(2).
Illusion [34]

Answer:

-3

Step-by-step explanation:

Please write this as  f(x) = x^2 + 4x - 12.  "x^2" represents "the square of x."

f(2) is the value of this function when x = 2:

f(2) =  f(2) = (2)^2 + 4(2) - 12  =  9 - 12 = -3

7 0
3 years ago
Evaluate the expression 81-8^2
Tpy6a [65]

Answer:

17

Step-by-step explanation:

Do the exponent first, then subratct it to 81

7 0
3 years ago
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