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12345 [234]
3 years ago
12

12a2 + 4b for a = 8 & b = -6. PLease help

Mathematics
1 answer:
ololo11 [35]3 years ago
4 0

Answer:

744

Step-by-step explanation:

12a^2 + 4b

Plug-in:

12(8)^2 + 4(-6)

12(64) + 4(-6)

768 - 24

744

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Please look at the attachment and answer my question :(
pshichka [43]

Answer:

  • The number at B is 10.6

Step-by-step explanation:

Let the number at B be x.

We know that distance between two points on the number line is the absolute value of the difference of numbers at those points.

Then distances representing the lengths of segments AB and BC are:

  • AB = x - 9
  • BC = 13 - x

We are given the ratio of segments:

  • AB/BC = 2/3

Substitute and solve for x:

  • (x - 9)/(13 - x) = 2/3
  • 3(x - 9) = 2(13 - x)
  • 3x - 27 = 26 - 2x
  • 3x + 2x = 26 + 27
  • 5x = 53
  • x = 53/5
  • x = 10.6

8 0
1 year ago
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If p(x) = 2x^2 – 4x and q(x) = x – 3 what is (p*q)(x)
Arisa [49]
Work shown above! Answer would be 2x^2 -16x + 30

5 0
3 years ago
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a model car is one tenth of the size of the real car the models measures 42cm longs what the length of length of the real car
trapecia [35]
Just multiply 42 by 10 and that gives you 420 , so the real car has a length of 420cm or 4.2 metres :)
8 0
3 years ago
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Find the sum of the first 10 terms of the following geometric sequences:<br> {3, 6, 12, 24, 48...)
bonufazy [111]

Answer:

3069

Step-by-step explanation:

q=6/3=2

s10=3(2^10-1)÷(2-1)=3×(1024-1)=

3069

because sn=a1(q^n-1)/(q-1)

3 0
3 years ago
Whats 2+2 equal? I need help.​
Nutka1998 [239]

Answer:

The answer is four.

Step-by-step explanation:

II + II= IIII

4 0
3 years ago
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