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inysia [295]
3 years ago
7

Is 619 good on an I-ready test??

Mathematics
2 answers:
lesya [120]3 years ago
8 0
That’s great but math or reading and what grade
Sever21 [200]3 years ago
4 0
Yeah I’m pretty sure
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Anyone can u plz solve this​
aliya0001 [1]

Answer:

  • 18x²y - 8a + 14b

Step-by-step explanation:

<u>The Sum:</u>

  • 3x²y - 5a + 4b +  (-9x²y - 7b + 4a) =
  • 3x²y - 9x²y - 5a + 4a + 4b - 7b =
  • -6x²y - a - 3b

<u>The difference:</u>

  • 3x²y - 5a + 4b - (-9x²y - 7b + 4a) =
  • 3x²y + 9x²y - 5a - 4a + 4b + 7b =
  • 12x²y - 9a + 11b

<u>Subtract the sum from the difference:</u>

  • 12x²y - 9a + 11b - (-6x²y - a - 3b) =
  • 12x²y + 6x²y - 9a + a + 11b + 3b =
  • 18x²y - 8a + 14b
4 0
3 years ago
Read 2 more answers
How can I do this I’m having trouble with it on penn foster
elixir [45]

Answer:

answer is A

Step-by-step explanation

Those lines pointing down to each angle means there both equal

7 0
4 years ago
Express 6x5x4 in nPr form
larisa [96]
<span>The number of different permutation of n number of objects can be written as nPr.</span>
6 x 5 x4 in nPr is 6P4 = 6! / (6-4)!  or 6 x5 x4
3 0
4 years ago
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Please solve and explain to me the steps
Gnom [1K]
√(75m^3b

Whenever you are looking to simplify a radical, you want to see what the prime factorization of the elements under the radical...

√(3*5*5*m*m*m*b)  now you can move out the squared terms (we move out all of the terms that appear twice in this case(

5m√(3mb)
6 0
4 years ago
The length of a rectangle is 6 inches more than 3 times the width. The perimeter is 100 inches. Find the length and the width.
Doss [256]

<u>Answer:</u>

length = 39 inches

width = 11 inches

<u>Step-by-step explanation:</u>

Assuming the length of the rectangle to be l and width to be w, we can write the length as:

l = 3 w + 6

We know that perimeter of the rectangle is 100 inches and its formula is:

<em>Perimeter of a Rectangle = 2l + 2w</em>

So substituting the given values in the above formula:

100 = 2l+2w

100=2(3w+6)+2w

100=6w+12+2w

8w=100-12

8w=88

w=11

Substituting this value of w to find the length l:

l=3(11)+6\\\\l=33+6\\\\l=39

Therefore, the length = 39 inches and width = 11 inches.

5 0
4 years ago
Read 2 more answers
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