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V125BC [204]
3 years ago
12

Please solve and show step by step Best answer get rewarded!

Mathematics
1 answer:
Arisa [49]3 years ago
6 0
B² - 4ac
= 8² - 4*(-2)*(-9)
= 64 - 72
= -8
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3 years ago
Please help me. i don't remember how to do this stuff so please explain it.
AVprozaik [17]

Answer:

which class are you read in?

actually don't know ans

Step-by-step explanation:

hope it's helpful to you

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sweet dreams

8 0
3 years ago
Read 2 more answers
Find the volume with the explanation if possible <3​
stellarik [79]

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7 0
3 years ago
Please answer this question
elena-14-01-66 [18.8K]
The area of the base (six triangles with a base 15m and a height 7.5√3m):

A_B=6\cdot\dfrac{1}{2}\cdot15\cdot7.5\sqrt3\approx585\ m^2

The area of side walls (six triangles with a base 15m and a height 12m)

A_W=6\cdot\dfrac{1}{2}\cdot15\cdot12=540\ m^2

The surface area:

A_B+A_W=585+540=1,125\ m^2



8 0
3 years ago
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