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2 years ago

How many triangles are there in the picture? Clue, there are more than 30.

Mathematics

2 answers:

Maksim231197 [3]2 years ago

8 0

Answer:

36?

Step-by-step explanation:

melomori [17]2 years ago

3 0

Answer:

42 Triangles

Step-by-step explanation:

Count all the triangles one by one and determine the # of triangles.

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There were 47 bales of hay in the barn. Mike stacked more bales in the barn today. There are now 78 of hay in the barn. How many

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Answer:

Step-by-step explanation:

78 - 47 is 31 bales of hay

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2 years ago

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Find the median: 95, 103, 98, 62, 31, 15, 82

USPshnik [31]

The median is 82
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3 years ago

The value of x is______

Naddik [55]

Answer:

x = 20 ................

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3 years ago

The letters r and Θ represent polar coordinates. perform the following.

nexus9112 [7]

Answer:

$\boxed{(x - \frac{1 }{ 2})^{2} + y^{2} = \frac{21 }{ 4}}\\$

Step-by-step explanation:

$r = \frac{5}{r - cos\theta}\\r^{2} - rcos\theta = 5\\\\$

$\text{Use the relationships}\\r^{2} = x^{2} + y^{2}; cos\theta = \frac{ x}{r }\\$

$\begin{array}{ll}x^{2} + y^{2} - r(\frac{x }{r }) = 5 & \text{Made the substitutions } \\x^{2} + y^{2} - x = 5 & \text{Simplified } \\x^{2} -x + y^{2} = 5 & \text{Rearranged } \\x^{2} -x + \frac{1 }{ 4} + y^{2}= 5 + \frac{1 }{ 4} & \text{Completed the square } \\(x - \frac{1 }{ 2})^{2} + y^{2}= \frac{21 }{ 4} & \text{Wrote as sum of squares} \\\end{array}\\\\$

$\text{This is the equation of a circle with centre at (0.5, 0 ) and radius equal to}\\\frac{\sqrt{21} }{ 2} \approx 2.291\\$

$\boxed{(x - \frac{1 }{ 2})^{2} + y^{2}= \frac{21 }{ 4}}\\$

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2 years ago

What is greater 2 5/6 or 3.8

tekilochka [14]

3.8 is bigger because 2 and 5/6 is like saying 2.833. So, 2.8 < 3.8

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2 years ago

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