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Elenna [48]
3 years ago
7

I need help with questions 19-24

Mathematics
1 answer:
larisa86 [58]3 years ago
4 0
Ppl r too lazy on this app to do them all so I would suggest use the tutor option for this
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Evaluate 2 k3 + j for k = -2 and j = -5.<br><br> -21<br> -11<br> -17<br> -7
uysha [10]

Hey there!


ASSUMING:
2k^3 + j

CONVERTING

= 2(-2)^3 + (-5)

= 2(-2)^3 - 5

= 2(-2^3) - 5

= 2(-1 * 2 * 2 * 2) - 5

= 2(-2 * 4) - 5

= 2(-8) - 5

= -16 - 5

= -21


Therefore, the answer should be: -21



Good luck on your assignment & enjoy your day!


~Amphitrite1040:)

6 0
2 years ago
MATHEMATICAL CONNECTIONS The value of the surface area of the cylinder is equal to the value of the volume of the cylinder. Find
loris [4]

Given :

The value of the surface area of the cylinder is equal to the value of the volume of the cylinder.

To Find :

The relation between height and radius.

Solution :

S.A=2\pi rh+2\pi r^2=2\pi r(h+r)

V=\pi r^2h

Now ,

S.A=V\\\\2\pi r(h+r)=\pi r^2h\\\\2(h+r)=rh\\\\2h+2r=rh\\\\h(2-r)=-2r\\\\h=\dfrac{2r}{r-2}

Hence, this is the required solution.

6 0
3 years ago
I don't know what to do help
MaRussiya [10]
Could you be more specific about what you need to know here?  Where are the instructions for this problem?  Try to explain what you do understand and what you don't.
5 0
3 years ago
To four times a certain number i add 16 and the result is 28. Find this number​
shusha [124]

Answer:

(1): "s2"   was replaced by   "s^2".  2 more similar replacement(s).

(2): Dot was discarded near "8.f".

Step-by-step explanation:

i believe

7 0
3 years ago
Read 2 more answers
A jewelry artist is selling necklaces at an art fair. It costs $135 to rent a booth at the fair. The cost of materials for each
MissTica

Answer:A) yes,B)4.50n<135

Step-by-step explanation: should would make profit because you would take the answer you got from  12n > 135 + 4.50n to see work look below

  1. 12-4.50=7.5
  2. 7.5n>135
  3. 7.5/135=184
  4. 18*15=270

the answer for part b would be  to see work look below

  1. set up equation(4.50n<135)
  2. 4.50/135
  3. anwer is n<30

hope I helped!!!!!

6 1
3 years ago
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