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Hitman42 [59]
2 years ago
15

A number n, decreased by 10

Mathematics
2 answers:
Anettt [7]2 years ago
7 0

Answer:

n - 10

Step-by-step explanation:

Fynjy0 [20]2 years ago
6 0

Answer:

n-10

Step-by-step explanation:

decreased by means -

increased by means +

is means =

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The geometic mean of 4 and 21
-Dominant- [34]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
−15 ÷ 5 =
jekas [21]

Answer:

-3 is the answer because if we divide 15 by 5 we get 3 . So it is same only the question is -15 divide by 5 so the answer is -3

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19. Use Gauss-Jordan elimination to solve the following system of equations. 3x + 5y = 7 6x − y = −8
MrRa [10]

\left[\begin{array}{cc}3&5\\6&-1\end{array}\right] \left[\begin{array}{c}x\\y\end{array}\right] = \left[\begin{array}{c}7\\-8\end{array}\right]\\\left[\begin{array}{cc|c}3&5 &7\\ 6& -1 & -8\end{array}\right] \rightarrow \left[\begin{array}{cc|c}3&5& 7\\0&-11 & -22\end{array}\right] \rightarrow \left[\begin{array}{cc|c}3&5& 7\\0&1 & 2\end{array}\right]\\3x +5y = 7\\\\y = 2\\\therefore x = -1

6 0
3 years ago
Someone please help with these and explain your answer for both!!! I will give brainliest if correct!!!
goldenfox [79]

Answer:

C

Step-by-step explanation:

We have congruent angles in the middle and 2 sides are congruent as well which makes (Angle-Side-Side) which doesn't work for congruent triangles.

3 0
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Plz help 8th grade Math
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C

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