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3 years ago

I need help solving ------> 2y = 18

Mathematics

2 answers:

kogti [31]3 years ago

8 0

Answer: 9

Step-by-step explanation:

divide 2 by y and 18 and the the 2divided by 2 cancel out. then divide 18 by 2 and you get y = 9

Softa [21]3 years ago

4 0

Answer:

y=4

Step-by-step explanation:

2y=8

after transposing

y=8/2

y= 4

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Determine the points are collinear (1,2) (2,3) and (-2,-11)

Eduardwww [97]

Given:

The three points are (1,2), (2,3) and (-2,-11).

To find:

Whether the given points are collinear.

Solution:

Let as consider the three points are A(1,2), B(2,3) and C(-2,-11).

If these three points are collinear, then area of $\Delta ABC$ must be 0.

Area of $\Delta ABC$ ,

$Area=\dfrac{1}{2}|x_1(y_2-y_3)+x_2(y_3-y_1)+x_3(y_1-y_2)|$

$Area=\dfrac{1}{2}|1(3-(-11))+2(-11-2)+(-2)(2-3)|$

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3 years ago

An observatory is shaped like a cylinder standing on one of its bases with a dome on top. The

ratelena [41]

Answer:

Option F. $200.96\ ft$

Step-by-step explanation:

we know that

The circumference of a circle is equal to

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in this problem

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substitute

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saveliy_v [14]

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36+36=72
Square root 72 is about 8.5
8.5 would be y. Let me know if this is right and if this helps

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