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DiKsa [7]
3 years ago
6

Help please, read question fully. geometry

Mathematics
1 answer:
aleksley [76]3 years ago
3 0

Answer:

  30 inches

Step-by-step explanation:

Assuming the lengths are measured when B lies between A and C on a line, the segment addition theorem applies:

  AC = AB +BC

  42 = AB + 12 . . . . . fill in the given numbers

  30 = AB . . . . . . . . . subtract 12

The length of AB is 30 inches.

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One number is 2 more than 3 times another. Their sum is 22. Find the numbers. 8, 14 5, 17 2, 20 4, 18 10, 12
xxTIMURxx [149]

9514 1404 393

Answer:

  (b)  5, 17

Step-by-step explanation:

You can try the answer choices easily enough.

  2 +3×8 ≠ 14

  2 +3×5 = 17 . . . . this choice works (5, 17)

  2 +3×2 ≠ 20

  2 +3×4 ≠ 18

  2 +3×10 ≠ 12

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Or, you can solve the equation:

  x + (2 +3x) = 22

  4x = 20 . . . . . . . . subtract 2

  x = 5 . . . . . . . . . . divide by 4

The numbers are 5 and (22 -5) = 17.

5 0
2 years ago
Negative one-sixth of a number is less than -9. write an inequality.​
sladkih [1.3K]

Answer:

-1/6 n < -9

Step-by-step explanation:

Negative one-sixth of a number

-1/6 n

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-1/6 n < -9

3 0
2 years ago
Solve for xxx. Your answer must be simplified. \dfrac x{-6}\geq-20 −6 x ​ ≥−20
Tems11 [23]

Answer:

x ≤ - 27

Step-by-step explanation:

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7 0
3 years ago
What is the average of 140, 130, 144, 145, 130?
diamong [38]
The average is 137.8.
8 0
3 years ago
Read 2 more answers
X^2 = 25/289 (Solve for X)
ElenaW [278]
You have to square root 25/289 to solve X. The answer will be 5/17
4 0
3 years ago
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