Answer:
4) r=7.421
Step-by-step explanation:
All the questions are the same steps but when it asks for the diameter (question 6 and 7) , you would do the same steps just multiply the radius by 2 at the end.
Hope that helped.
The answer is b because i just solves it
4x - 6 = x + 9
4x - x = 9 + 6
3x = 15
x = 15/3
x = 5
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4 - 7x = 1 - 6x
4 - 1 = -6x + 7x
3 = x
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-4x - 3 = -6x + 9
-4x + 6x = 9 + 3
2x = 12
x = 12/2
x = 6
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41 - 2x = 2 + x
41 - 2 = x + 2x
39 = 3x
39/3 = x
13 = x
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6(2 + y) = 3(3-y)
12 + 6y = 9 - 3y
6y + 3y = 9 - 12
9y = - 3
y = -3/9
y = -1/3
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4x = 2(x - 5) - 2
4x = 2x - 10 - 2
4x - 2x = -10 - 2
2x = -12
x = -12/2
x = -6
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6x - 9x - 4 = -2x - 2
-3x - 4 = -2x - 2
-4 + 2 = -2x + 3x
-2 = x
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-2(2x + 3) = -4(x + 1) - 2
-4x - 6 = -4x - 4 - 2
-4x - 6 = -4x - 6
infinite solutions
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3 + 6x = 9 - 6x
3 - 9 = -6x - 6x
-6 = -12x
-6/-12 = x
1/2 = x
==============
-9x + 6 = -x + 4
6 - 4 = -x + 9x
2 = 8x
2/8 = x
1/4 = x
I hope I read these correctly....not that easy...u got weird looking x's and ur 4's can almost pass for 6's
When x = 1 (that is x > 0) f(1) = 1^2 - 1 = 0
So b is correct
Answer:
8%
Step-by-step explanation:
Let's say the tax percent was x%. Then, we can write the equation:
4.75 + x% * 4.75 = 5.13
Notice that both terms on the left have 4.75 so factor that out:
4.75 * (1 + x%) = 5.13
Divide both sides by 4.75:
1 + x% = 5.13/4.75 = 1.08
Subtract 1 from both sides:
x% = 0.08
Remember that % simply means "out of 100", so x% = x/100:
x/100 = 0.08
Multiply both sides by 100:
x = 8
Thus, the tax rate is 8%.
Hope this helps!
