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Zina [86]
3 years ago
12

Solve by simplifying the problem. There are 18 students in Mr. Alvarez’s art class. Throughout the year, every student must pair

up with every other student to complete a project. How many projects will be finished?
A. 149 projects
B. 153 projects
C. 171 projects
D. 135 projects
Mathematics
1 answer:
djyliett [7]3 years ago
5 0
Not enough clues to answer this question
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Angle $eab$ is a right angle, and $be = 9$ units. what is the number of square units in the sum of the areas of the two squares
Alla [95]
Let the measure of side AB be x, then, the measue of side AE is given by

AE=\sqrt{9^2-x^2}.

Now, ABCD is a square of size x, thus the area of square ABCD is given by

Area=x^2

Also, AEFG is a square of size \sqrt{9^2-x^2}, thus, the area of square AEFG is given by

Area=\left(\sqrt{9^2-x^2}\right)^2=9^2-x^2=81-x^2

<span>The sum of the areas of the two squares ABCD and AEFG is given by

x^2+81-x^2=81

Therefore, </span>the number of square units in the sum of the areas of the two squares <span>ABCD and AEFG is 81 square units.</span>
8 0
3 years ago
The mean gpr averages of a random sample of 36 college seniors is calculated to be 2.6. the population standard deviation is 0.3
Alika [10]
A is the correct answer
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What is the length of the hypotenuse
Vera_Pavlovna [14]

Answer:

c=45

Step-by-step explanation:

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1296+729=c2

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Then square root it to get

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a_sh-v [17]
The answer is 9.....................
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43⋅(10025)−50 please help me someone
Mashutka [201]
43 * (10025) - 50 = 431075 - 50 = 431025
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