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Kitty [74]
4 years ago
8

3x^2 + 6 - 2x + 5x - 4x^2 + 9

Mathematics
1 answer:
Over [174]4 years ago
4 0
3x * 3x = 9x

9x + 6 - 2x + 5x - 4x^2 + 9

9x + 6 - 7x - 4x * 4x + 9

9x + 6 - 7x - 16x + 9

9x + -7x = 2x + 6 - 16x + 9

2x + 6 - 16x + 9

2x + (-3) - 16x

-14x + (-3) is the expression?
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which of the following is a rational number square root of 15, square root of 16, square root of 21, square root of 22.​
Lesechka [4]

Answer:

16

Step-by-step explanation:

16s square root is 4 and 4 can be written as a fraction

Therefore, 4 is a rational number

And to the conclusion 16 is the answer

please mark brainliest =}

3 0
4 years ago
Luke is making pancakes. The recipe calls for 0.5 quart of milk and 2.5 cups of flour. He has 3/8 quart of milk and 18/8 cups of
cupoosta [38]
<span>3/8 ÷ 0.5 = 3/4 
2.5 ÷ 18/8 = 2/5 

Since 3/4 > 2/5, he has too much milk. He'll get runny pancakes.Hope this helps! =)</span>
3 0
4 years ago
Pls help on question 9
RSB [31]
12 are 27 1/4 and under and 8 are above 27 1/4
5 0
3 years ago
find two consecutive integers such that the sum of the lager number and 4 times the smaller number is 156
Len [333]
<h2>Answer:   31 & 32</h2>

Step-by-step explanation:

So we first need to assign letters to represent the numbers.

Let 'a' be the larger number and 'b' the smaller.

Now we can use this to write equations that we can solve simultaneously to find both 'a' and 'b'.

according to the question:

a + 4b  = 156  [1]

a - b = 1  [2]   (this is because the integers are consecutive

We can rearrange [2] to make 'a' the subject:     a = b + 1 [3]

We can then substitute [3]  into [1] and solve for b

(b + 1) + 4b = 156

5b = 155

 b = 31

Now we can find 'a' using [3]

a = 31 + 1

a = 32

4 0
3 years ago
X y
katovenus [111]

Answer: Hewo, there! your answer is Below.

B.

linear Would be my answer because it's arranged in or extending along a straight or nearly straight line.

Step-by-step explanation:

Hope this helps!!

have a great day!!!]

-August-

7 0
3 years ago
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