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MatroZZZ [7]
2 years ago
7

2. Which of the following is frue about the solution to the system of equations below? 2x + 4y = 9 2x + 4y = -9 A. The system ha

s no solution. B. The system has infinitely many solutions. The system has one solution. D. None of the above.​
Mathematics
1 answer:
Lubov Fominskaja [6]2 years ago
3 0

Answer:

Step-by-step explanation:

B. The system has infinitely many solutions. The system has one solution.

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B. approximately 7 calories

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3 years ago
Please help will mark brainliest if right
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Answer:

6 = W + 2

Explanation:

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5 0
2 years ago
Read 2 more answers
Some help please stuck on 4, 8, 9
bulgar [2K]
4:
a) if a cloud is a mid-level cloud, then it is between 6,500 and 20,000 feet.
b) if a cloud isn't a mid level cloud, then it is not between 6,500 and 20,000 feet. [I don't know if this statement is true]
8:
P=2l+2w
solve for w means to make the equation like w=... (get w on one side by itself).
First, subtract 2l from both sides
P-2l=2w
Now, divide both sides by 2
{P-2l}{2} = W
Done
9:
*The question is a bit wrong here; it should have said In the corner of the angle ABC there is a little square symbol - that means it is a 90 degree angle.
The angle ABC is broken up into angles ABD and DBC, so ABD and DBC add up to 90 degrees.
So, we can make the equation (2x + 10) + (x + 14) = 90
Then solve
Since it is all addition, the parentheses are unnecessary
2x + 10 + x + 14 = 90
Add all x terms together, and the numbers together
3x + 24 = 90
Subtract 24 from both sides
3x = 66
Divide both sides by 3
x = 22
Now, plug in this x value into the formulas for the two angles
ABD = 2(22) + 10 = 44+10 = 54 degrees
DBC = 22 + 14 = 36 degrees
6 0
3 years ago
Which of these is usually true of a convenience sample?
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I think is d that what i tink
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Olenka [21]

Answer:

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8 0
2 years ago
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