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alukav5142 [94]
3 years ago
13

10 POINTS

Mathematics
1 answer:
Serga [27]3 years ago
7 0

Answer:

C. 33

Step-by-step explanation:

Sample mean is right in the centre of the interval

Sample mean:

(25+41)/2

66/2

33

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20 points!<br> I need help (asap!!)
EastWind [94]

Answer:

<h2>x = 5</h2><h2>OB = 36</h2><h2>BE = 54</h2>

Step-by-step explanation:

We know that the medians of the triangle divides in a ratio of 2:1. Therefore we have the equation:

\dfrac{9x-9}{2x+8}=\dfrac{2}{1}                <em>cross multiply</em>

1(9x-9)=2(2x+8)             <em>use distributive property a(b + c) = ab + ac</em>

9x-9=(2)(2x)+(2)(8)

9x-9=4x+16                 <em>add 9 to both sides</em>

9x=4x+25                <em>subtract 4x from both sides</em>

5x=25             <em>divide both sides by 5</em>

\boxed{x=5}

OB=9x-9\to OB=9(5)-9=45-9=\boxed{36}

OE=OB:2\to OE=36:2=18\to BE=BO+OE\to BE=36+18=54


8 0
3 years ago
What is the area of the triangle shown below?
Nimfa-mama [501]

Answer:

300 mm squared

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Shirley wants to find an estimate for the number of bees in her hive.
Illusion [34]

The estimate for the total number of bees in her hive is 190 bees

<h3>How to find the total estimate of the bees ?</h3>

She catches 90 of the bees on Monday and she puts mark on each bees and return them to her hive.

On Tuesday she catches 120 of the bees. She find out that 20 of the bees has been marked.

This means only 100 bees have not been marked on Tuesday.

Therefore, the total number of bee in her hives is as follows:

total number = 90 + (120 - 20)

total number = 90 + 100

total number = 190 bees

learn more on estimate here:brainly.com/question/16670022

#SPJ1

8 0
2 years ago
Which of the equations below represents a line perpendicular to the yaxis?
lions [1.4K]

Answer:

A. y=-6

Step-by-step explanation:

Using the answer, it would make a horizontal line which would be perpendicular to the y axis.

4 0
3 years ago
Read 2 more answers
Simplify 15(5b+3)<br> Please help me I don't understand at all
melamori03 [73]
15(5b+3) \\ \\ 15 \times 5b + 15 \times 3 \ / \ distribute \\ \\ 75b + 15 \times 3 \ / \ simplify \\ \\ 75b + 45 \ / \ simplify \\ \\

The final result is: 75b + 45.
3 0
3 years ago
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