MATHEMATICS MIDDLE SCHOOL

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What would a equal if 4(a+12) was 32?

Answers

Answer 1
Answer: 4(a+12)=32
4a+48=32
4a=-16
a=-4
Answer 2
Answer: 4(a+12)=32\n a+12=8\n a=-4

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Which statement is sometimes, but not always, true? A.A parallelogram is a rhombus.B.A rhombus is a quadrilateral.C.A trapezoid is a square.D.A square is a rectangle.
Bacteria can multiply at an alarming rate when each bacteria splits into two new cells, thus doubling. If we start with only one bacteria which can double every hour, how many bacteria will we have by the end of the day? Show your work
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Uhhh this is so fustrating but someone please help

Can you tell me this two? Thanks

Answers

These are the answers to problems 29 and 30:
29. C
30. C

Find the percent of change. Round to nearest tenth, if necessary.62 is decreased to 52.

28 is increased to 96.

72 is decreased to 45.

55 is increased to 90.

230 is increased to 250.

180 is decreased to 140.

Answers

#1:
19.2%
#2:
242.9%
#3:
60%
#4:
63.6%
#5:
8.7%
#6:
28.6%
To find percent change you subtract the lower number by the higher number.
N decreased by 10
you do N minus 10.
Lets say the difference is Y.
So Y is what percent of N = Your answer

Lee has a jar of 100 pennies. She adds groups of 10 pennies to the jar . She adds 5 groups. What numbers does she say?

Answers

If the groups are all made up of 10 pennies and she added 5 groups, then

5 x 10 = 50

Which means she added 50 pennies to the jar and now has 150 pennies. :)

5a+2a(5+—b)= please i need help

Answers

5a + 2a(5 + (-b)) = 5a + 2a(5 - b)

Use the distributive property which states a(b+c) = ab + ac

5a + 10a - 2ab

Simplify like terms

15a - 2ab

Which of these is the note A?

Answers

By knowing the position of each note in the pentagram, we will see that the correct option is C.

How to read the notes in a pentagram?

The notes in a pentagram, counting from the bottom line and where you need to remember that notes go on the lines and also on the spaces between the lines, are:

  • E  for the first line
  • F for the first space
  • G for the second line
  • A for the second space
  • B for the third line
  • C for the third space
  • D for the fourth line
  • E for the fourth space
  • F for the fifth line.

So now you know the position of A in the pentagram, you just need to find the one where the note is in the second space counting from the bottom, the correct option is C.

If you want to learn more about sheet notation, you can read:

brainly.com/question/16737468

Answer:

OPTION :C. is note A . #answerwithquality #BAL

Simplify 3 over quantity of 5 minus 6 i . (1 point)

Answers

3/(5 - 6i)

To simplify this, we need to multiply both sides by the conjugate of the denominator, which is 5 + 6i

3(5 + 6i)

Distributive property.

15 + 18i

(5 - 6i)(5 + 6i)

25 + 30i - 30i - 36i^2

25 - 36i^2

i^2 = -1

25 + 36

61


The simplified expression is (15/61) + (18i/61).
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