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emmasim [6.3K]
3 years ago
7

In a used book store, there are some different mystery novels on a shelf. Suppose there are 64 different ways to buy these novel

s, including not buying any of them. How many mystery novels are there on the shelf?
Mathematics
1 answer:
den301095 [7]3 years ago
5 0
Is this a riddle or actual math?
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In ΔABC, point M is the midpoint of side AB and point D is the midpoint of segment MC. Prove that the area of ΔADC= the area of
Anna11 [10]
A line segment from a vertex to the midpoint of the opposite side is a "median". A median divides the area of the triangle in half, as it divides the base in half without changing the altitude.
AAMC is half AABC. AADC is half AAMC, so is 1/4 of AABC. (By the formula for area of a triangle.)
ABMC is half AABC. ABMD is half ABMC, so is 1/4 of AABC. (By the formula for area of a triangle.)
Then, AADC = 1/4 AABC = ABMC, so AADC = ABMC by the transitive property of equality.
8 0
3 years ago
Which number is halfway between 318970 and 719070​
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Answer:

it is 519020

Step-by-step explanation:

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3 years ago
Quadratic equations<br> m^2-12=m
prisoha [69]

Step-by-step explanation:

m² -12 = m

m² = m + 12

m = \sqrt{m + 12\\}

4 0
3 years ago
If a circle has a circumference of C, what is the area of the circle in terms of C?
Anettt [7]
First you have to write down the formula on how to get the circumference of the circle (C = 2pi * Radius) and the Area of the circle which is (A=Pi*Radius^2). In getting the radius you need to transform the formula of the circumference by making the radius to be the unknown variable so it would become(R=C/2pi), after that you need to replace the radius in the formula of the area by the transformed formula of the circumference and you will come up of the formula of (A=Pi(C/2pi)^2).
3 0
3 years ago
As front passed,the temperature changed steadily over 6 hours. altogether it changed -18 degrees. what was the change in tempera
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The temperature changed steadily over the 6 hours, which means that it changed the same amount of degrees every hour.  It changed -18 degrees in 6 hours. 
Divide the temperature change by the number of hours.
-18 ÷ 6 = -3
The change in temperature per hour is -3°.
5 0
3 years ago
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