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sukhopar [10]
3 years ago
14

Please help will mark brainliest

Mathematics
1 answer:
konstantin123 [22]3 years ago
3 0

Answer:

10

Step-by-step explanation:

Each dot represents a rock.

To know the total number of rocks, count the dots. Ignore the numbers since they represent the mass of each rock, but you are not asked about that.

There are 10 dots, so there are 10 rocks in the collection.

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1. What is the difference between the altitude rule and the leg rule?
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Answer:

The altitude to the hypotenuse of a right triangle forms two triangles that are similar to each other and to the original triangle

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Step-by-step explanation:

The altitude to the hypotenuse of a right triangle is the mean proportional between the segments into which it divides the hypotenuse. Notice the triangle used with this rule. The leg of a right triangle is the mean proportional between the hypotenuse and the projection of the leg on the hypotenuse.

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3 years ago
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Answer:

<u>Question 3</u>

Given expression:

\sf \left(\dfrac{-8}{9} \times \dfrac{1}{-5}\right)+\left(\dfrac{-8}{9} \times \dfrac{-7}{11}\right)

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\sf \implies\dfrac{-8}{9} \times \left(\dfrac{1}{-5}+\dfrac{-7}{11}\right)

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

<u>Question 4</u>

To calculate the amount of money Rajni had to begin with, sum the three amounts she spent:

\sf \implies total=10\frac14+25\frac34+16\frac12

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\sf \implies 10+\frac14+25+\frac34+16+\frac12

Collect and sum the whole numbers:

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\sf \implies 51+\frac14+\frac34+\frac12

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\sf \implies 51+1+\frac12

\sf \implies 52+\frac12

\sf \implies 52\frac12

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