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sergey [27]
3 years ago
6

Can someone tell me which one it is?

Mathematics
2 answers:
Pepsi [2]3 years ago
8 0

Answer:

-16

Step-by-step explanation:

-16... using d = b²-4ac

nekit [7.7K]3 years ago
8 0

Answer:

the discriminant is –16

hope this helps!

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12,348 <img src="https://tex.z-dn.net/?f=%5Cpi" id="TexFormula1" title="\pi" alt="\pi" align="absmiddle" class="latex-formula">
Diano4ka-milaya [45]

Answer:

radius of the sphere (r) = 21 units

Step-by-step explanation:

here's the solution : -

=》

12348\pi =  \frac{4}{3}  \times \pi \times  {r}^{3}

=》

{r}^{3}  = 12348 \times  \frac{3}{4}

( pi cancel out )

=》

{r}^{3}  = 9261

=》

r = 21

4 0
3 years ago
Calculate dy/dx when xy^3 + y =3x
Brilliant_brown [7]
You have to use implicit derivative

dy / dx = y'

xy^3+y=3x

y^3 + 3xy^2 y' + y' = 3

[3xy^2 + 1) y'= 3 - y^3

          3 - y^3
y' = -----------------   <-----------answer
         3xy^2 + 1

6 0
3 years ago
Radium-226 is a metal with a half-life of 1600 years. If you start with 1 kilogram of radium-226, how much will remain after 20,
erica [24]
Ending Amount = Beginning Amount / 2^n 
where 'n' = # of half lives
n = 20,000 / 1,600 = 12.5 half-lives

Ending Amount = 1 kg / 2^12.5
Ending Amount = 1 kg / <span> <span> <span> 5,792.6
</span></span></span>Ending Amount = <span> <span> <span> 0.00017263 kilograms = </span></span></span><span>0.17263 grams


</span>
6 0
4 years ago
Need asap please. Brainliest for correct answer.
maks197457 [2]
Correct answer is
A) -4(m+y)
7 0
3 years ago
A=2/3b,b=15,c=?<br><br><br>please help dear lord​
SVETLANKA909090 [29]

Answer:

10.

Divide b into thirds, and then add together 2 of those thirds.

15/3 = 5

5x2 is 10.

Sorry if that doesn't make sense but it's how I do it in my head lol.

5 0
3 years ago
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