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Ivahew [28]
3 years ago
9

-8 + (-15) Evaluate this expression ​

Mathematics
1 answer:
OverLord2011 [107]3 years ago
4 0

Answer:

-23

Step-by-step explanation:

-8+(-15) means that you are subtracting 15 from -8. So you end up with -8-15=-23.

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5+1+(-3)+...+(-395)=
sleet_krkn [62]
= \frac{(-395+5)(-395-5-4)}{2.(-4)} \\ \\ \\=-19695 \\ \\ \\ Good Luck:))
5 0
3 years ago
First time doing mensuration, can someone enlighten me on how to find the height of the hemisphere and cone?
Alina [70]

Answer:

Step-by-step explanation:

volume=1/3\pi  r^2h +2/3\pi r^3[

tex]=1/3\pi *9*4+2/3\pi  *3^3[/tex]

=12\pi +18\pi= 30 \pi volume

4 0
3 years ago
Read 2 more answers
Help I'll give extra cred if u do​
Schach [20]
I think it’d be 2 and 3 if you’re rounding 2.984
7 0
2 years ago
EXPAND:
Sladkaya [172]

Answer:

\displaystyle  A) 5\log( {x}^{}   )  +   2 \log( {y}^{} )

Step-by-step explanation:

we would like to expand the following logarithmic expression:

\displaystyle   \log( {x}^{5}  {y}^{2} )

remember the multiplication logarithmic indentity given by:

\displaystyle \rm  \log( \alpha  \times  \beta ) \iff  \log( \alpha ) +  \log( \beta )

so our given expression should be

\displaystyle   \log( {x}^{5}   )  +    \log( {y}^{2} )

by exponent logarithmic property we acquire:

\displaystyle   5\log( {x}^{}   )  +   2 \log( {y}^{} )

hence, our answer is A

5 0
3 years ago
How do i get this ?
ser-zykov [4K]
Sinx=1/2
sin30=1/2
therefore x=30 degree
7 0
3 years ago
Read 2 more answers
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