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juin [17]
3 years ago
8

HELP PLS i need this right now

Mathematics
1 answer:
Margarita [4]3 years ago
5 0

Answer:

16.6

Step-by-step explanation:

By the property of intersecting secants outside of a circle, we have:

5 \times (5 + x) = 6 \times (6 + 12) \\ 25 + 5x = 6 \times 18 \\ 25 + 5x = 108 \\ 5x = 108 - 25 \\ 5x = 83 \\ x =  \frac{83}{5}  \\ x = 16.6

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pychu [463]

15. (-k^{3} -5k^{2} + 1) - (6k^{3}-k^{2} -2)

Step 1: Distribute the subtraction sign to all the numbers in the second set of parentheses...

(-k^{3} -5k^{2} + 1) - (6k^{3}-k^{2} -2)

-k^{3} -5k^{2} +1 - 6k^{3} +k^{2} +2

Step 2: Combine like terms (k^{2}'s go with k^{2}'s)

-k^{3} -5k^{2} + 1 - 6k^{3}+k^{2} +2

-5k^{2} +k^{2}

-4k^{2}

-k^{3} -4k^{2} + 1 - 6k^{3}+2

Step 3: Combine like terms (k^{3}'s go with k^{3}'s)

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-7k^{3} -4k^{2} + 1 +2

Step 4: Combine like terms (normal numbers go with normal numbers)

-7k^{3} -4k^{2} + 1 +2

1 + 2

3

-7k^{3} -4k^{2} + 3

You were correct!

16. 49m^2 - 84mn + 36n^2

I don't really know how to explain this one but I got: (7m-6n)(7m-6n)

7 0
4 years ago
Which function has a simplified base of 4^3√4?
IrinaVladis [17]

Answer:

The function is f(x) = 4(\sqrt[3]{16} )^{2x}.

Step-by-step explanation:

We have to choose from options the exponential function which has a simplified base of 4∛4 i.e. ∛(256).

Now, the exponential function in the option III will be the answer.

The function is f(x) = 4(\sqrt[3]{16} )^{2x}.

So, the base is (\sqrt[3]{16} )^{2} = \sqrt[3]{16^{2}} = \sqrt[3]{256} = 4\sqrt[3]{4}. (Answer)

The general formula of an exponential function is f(x) = a(b)^{x} , where b is called the base of the function.  

4 0
3 years ago
What is 90% of 180? Please help me
sasho [114]
162! :) HOPE THIS HELPED
8 0
3 years ago
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alexandr402 [8]

Answer:

y = - 2

Step-by-step explanation:

Find slope

(-2 - (-2))/(0-2)

(-2 + 2)//(-2)

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-2=b

equation: y=0x-2, y=-2

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3 years ago
Amy has 6 one dollar bills,3 five dollar bills,and 1 ten dollar bill.how much money dose Amy have in all?
mars1129 [50]
1+1+1+1+1+1+5+5+5+10=31
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