B=-3.4 if you want an explanation just ask
Answer:

Step-by-step explanation:
<u>Step 1: Distribute</u>
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<u>Step 2: Add 10x to both sides</u>
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<u>Step 3: Subtract 6 from both sides</u>
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<u>Step 4: Divide both sides by 7</u>
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Answer: 
Answer:
75.
Step-by-step explanation:
The GCF, or Greatest Common Factor, of 525, 135, and 750 is 75, and how we know this is to do some simple math.
Take all the numbers, simply factor each value first and then we choose all the copies of factors and multiply them.
Answer:
70 seconds
I think that's what you are looking for?
Answer: No, we don't have a right triangle
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Explanation:
If a triangle with sides a,b,c makes the equation a^2+b^2 = c^2 true, where c is the longest side, then this triangle is a right triangle. This is the converse of the pythagorean theorem.
Here we have a = 2, b = 5 and c = 7.
So...
a^2+b^2 = c^2
2^2+5^2 = 7^2
4+25 = 49
29 = 49
The last equation is false, so the first equation is false for those a,b,c values. Therefore, we do <u>not</u> have a right triangle.
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In contrast, consider the classic 3-4-5 right triangle
a = 3, b = 4 and c = 5 would make a^2+b^2 = c^2 true because 3^2+4^2 = 5^2 is a true equation (both sides lead to 25).