| b - 12 | = 15 . How do I solve this equation?

Answers

Answer 1
Answer:

We have b - 12 = 15 or b - 12 = - 15;

Then b = 12 + 15 or b = 12 - 15;

Finally, b = 27 or b = -3;

The solutions are 27; -3.

Answer 2
Answer:

Absolute value has a positive and neg. Answer


B-12=15


B= 15+12


B= 27


Now the negative


B-12=-15


B=-15+12


B= -3



Answer is

B= 27,-3




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Solve for v s= 1/2a2v + c

Answers

Answer:

v= −2c+2s / a^2

Step-by-step explanation:

Find the volume of the figure on the left

Answers

the volume is 408

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What is the measure oRCD in the figure below?350

Answers

Answer:

RCD = 35°

Step-by-step explanation:

Analyzing the figure you can observe the following: Both triangles have two equal sides (the CD line and the sides of 11), as well as an equal angle (that of 90°).

When this happens, two equal sides + 1 equal angle it means that the triangles are similar, that is, the measures of their angles are the same.

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The mean of a set of data is 45 years. Find the missing numbers in the data set {40, 45, 48, ?, 54, ?, 45}. Explain the method or strategy you used.

Answers

There are 7 numbers.  7 X 45 equals 315.  40+45+48+54+45=232.
315-232=83.

The 2 numbers can each have different values, such as 41 and 42, or 40 and 43.  The numbers must add up to 83, though.

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Answers

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PLEASE HELP!!!!! And explain too! Thanks!!! I am a prime number between 40 & 50. If you add one to me, the sum of ALL prime factors of that composite number is 15. What number am I?

Answers


I don't know any slick way to do this.  I would just list the prime numbers
between 40 and 50 and test them one at a time.

The prime numbers between 40 and 50 are: 41, 43, 47

Test 41:
-- add 1 . . . 42
-- prime factors of 42 . . . 2, 3, 7
-- sum of the factors . . . 12

Test 43:
-- add 1 . . . 44
-- prime factors of 44 . . . 2, 11
-- sum of the factors . . . 13

Test 47:
-- add 1 . . . 48
-- prime factors of 48 . . . 2, 3,
-- sum of the factors . . . 5

Maybe I'm not understanding how to list prime factors, but so far,
I haven't found any number that answers the question.

Maybe if I write the prime factorization of 44 like this:

               44 = 2 * 2 * 11

Now the items in the prime factorization do add up to 15.
So the answer would seem to be 43.