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lakkis [162]
2 years ago
9

40 POINTS ANSWER QUICKLY PLEASEE

Mathematics
2 answers:
Sedaia [141]2 years ago
8 0
I is equal to the square root of -1
The square root of 25 is 5
So the answer is C
never [62]2 years ago
5 0

Hey!

\\Solution:\\\\\sqrt{-25} - 4\\\\Rule~of~radicals: \sqrt{-a} = \sqrt{-1} \sqrt{a} \\Apply: \sqrt{-25} - 4 = \sqrt{-1} \sqrt{25} - 4\\\\Rule~of~imaginary~numbers: i = \sqrt{-1} \\Apply: \sqrt{-1} \sqrt{25} - 4 = 5i - 4\\\\Answer:\\5i - 4\\\\Hope~This~Helped!~Good~Luck!

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Use differentials to estimate the amount of paint needed to apply a coat of paint 0.07 cm thick to a hemispherical dome with dia
Sav [38]

Answer:

10.12 m^{3}

Step-by-step explanation:

Given:

  • 0.07 cm thick = 0.007m and it is dr (the change in radius)

As we know that, the volume of a hemispherical dome with diameter 48 m is:

  • V = \frac{2}{3} πr^{3}

Take the derivative of V we have:

\frac{dV}{dr} = 2πr^{2}  

<=> dV = 2πr^{2}*dr

<=> dV = 2π*48^{2} *0.0007 = 10.12 m^{3}

Hope it will find you well.

6 0
3 years ago
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Help ill Give brainliest
patriot [66]
A= 16777216
B= 279936
C= 32768
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3 0
2 years ago
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CAN SOMEBODY PLEASE HELP ME NOW I AM IN A RUSH!!!!!!!!!!!!!!!!!!!
cupoosta [38]

Answer:

i’m pretty sure it is 3 but i could be wrong

Step-by-step explanation:

3 0
2 years ago
ANSWER QUICKLYYYY 30 POINTS!!
adoni [48]

Answer:

36 , 0, 79

Step-by-step explanation:

5 0
2 years ago
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N/45=1/15<br> a. n= 1/3<br> b. n=4<br> c. n=675<br> d. n=3
jek_recluse [69]

Answer:

n=3

Step-by-step explanation:

n/45=1/45

cross multiplying

15n=45

n=45/15

n=3

5 0
2 years ago
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