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LenaWriter [7]
3 years ago
6

on a recent latin quiz, two people scored a 100, three people scored a 90, five people scored an 80, one person scored a 70. fin

d the standard deviation of these scores
Mathematics
1 answer:
irina [24]3 years ago
4 0
The answer is 70. Tell me if I’m right
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What is the value of cosec720​
shusha [124]

Answer:

csc  720 )

Step-by-step explanation:

Rewrite  

csc

(

720

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in terms of sines and cosines.

1

sin

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720

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Remove full rotations of  

360

° until the angle is between  

0

° and  

360

°.

1

sin

(

0

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The exact value of  

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is  

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1

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The expression contains a division by  

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The expression is undefined.

Undefined

5 0
3 years ago
A student makes a sign out of a rectangular piece of cardboard for an upcoming event at school. The piece of cardboard has a len
seraphim [82]

Answer:

915 in²

Step-by-step explanation:

The area of the rectangle :

Length = 32 inches

Width = 25 - (10+10) = 25 - 20 = 5 inches

Area of rectangle = Length * width

Area = 32 * 5 = 160 in²

Area of triangle :

Base = 25 inches

Height = (46 - 32) inches = 14 inches

Area of triangle = 1/2 * base * height

Area of triangle = 1/2 * 25 * 14 = 175 in²

Total area = (160 + 175)in² = 335 in²

Total area of cardboard :

50 inches * 25 inches = 1250 in²

Amount of cardboard not used :

(1250 - 335) in² = 915 in²

3 0
3 years ago
❗️❗️❗️❗️❗️PLEASE HELP SIMPLE INTEREST!! Lesson 6.7 ❗️❗️❗️❗️
Flura [38]

1200 * 0.05 * 4 = 240$ the amount of interest after 4 years.

total 1200+240=1440$

4 0
3 years ago
Can anyone help?? I don't understand.
Andrews [41]
If the height and base are equal, that simply means that b = h, or h = b

and we know the area is 18 m²

\bf \textit{area of a triangle}\\\\
A=\cfrac{1}{2}bh\qquad 
\begin{cases}
b=h\\
A=18
\end{cases}\implies 18=\cfrac{1}{2}\cdot h\cdot  h\implies 18=\cfrac{h^2}{2}
\\\\\\
36=h^2\implies \sqrt{36}=h
6 0
3 years ago
3.
kherson [118]

Answer:

The answer would be A/B=H

Step-by-step explanation:

To get rid of the B that is connected to the H, you would do the opposite of what they used. Meaning since the two were multiplied you would divide them. So, you would take your b and divide it on both sides of the equal sign. B and B cancels each other out so you are left with A/B which equals H.

7 0
3 years ago
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