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Anna [14]
3 years ago
13

What do you look for when solving name word problem

Mathematics
1 answer:
Alexxx [7]3 years ago
7 0
The main numbers and ratios or rates depending on the problem
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2! is the lcm of eighteen
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Can someone help me please only do it if you know geometry
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Convert 185 pounds into kilograms.
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Step-by-step explanation:

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3 years ago
Choose the set of three sides that correctly matches each description. Each option will be used only once.
34kurt

Answers:

  • 30-60-90 triangle = 4, 8, 4*sqrt(3)
  • 45-45-90 triangle = 6, 6, 6*sqrt(2)
  • Right triangle, but not special right triangle =  6, 8, 10
  • Triangle but not a right triangle = 7, 8, 10
  • Not a triangle = 7, 12, 19

======================================================

Explanation:

The template for a 30-60-90 triangle is that the short leg x leads to hypotenuse 2x, and longer leg x*sqrt(3). If x = 4, then we get the sides 4, 8, 4*sqrt(3) which are the short leg, hypotenuse, and long leg in that order.

----------------

The template for a 45-45-90 triangle is that we have x as the leg length and x*sqrt(2) as the hypotenuse. If x = 6, then we end up with the sides 6, 6, 6*sqrt(2)

-----------------

The triangle with sides 6, 8, 10 is a right triangle because a = 6, b = 8, c = 10 makes a^2+b^2 = c^2 true. I'm using the converse of the pythagorean theorem. We don't have a special right triangle because these sides do not fit the templates mentioned in the previous two sections above.

-------------------

The triangle with sides a = 7, b = 8, c = 10 on the other hand will not make a^2+b^2 = c^2 true. Note that a^2+b^2 = 7^2+8^2 = 113 which is not the same as 10^2 = 100. However, a triangle is possible because adding any two sides leads to a sum larger than the third side (triangle inequality theorem).

-------------------

We cannot form a triangle with sides 7, 12, 19 because the sides 7 and 12 add to 7+12 = 19 but that's not longer than the third side 19.

The triangle inequality theorem says that if you want to form a triangle with sides a,b,c then the following three inequalities must all be true

a+b > c

a+c > b

b+c > a

6 0
3 years ago
Answer why I got It wrong In the screenshot below
Rom4ik [11]

Answer:

I would say that -6 is not included because in order for a function to be included it has to ≤ or ≥. It should be greater than and <u>equal to</u>. 4 is the correct answer because x ≤ 4.

6 0
3 years ago
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