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mr_godi [17]
2 years ago
12

Someone smart pls help ASAP

Mathematics
2 answers:
MrMuchimi2 years ago
6 0

Answer:

-13 units

Step-by-step explanation:

-25 minus -12 = -13

Katarina [22]2 years ago
4 0

Answer:

13

Step-by-step explanation:

-12-(-25)=13

to check -25+13=-12

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What is the quotient (125 – 8x3) ÷ (25 + 10x + 4x2)?
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Your answer is:
(125 - 8x^3) / (25 + 10x + 4x^2) = - ((2x - 5) * (4x^2 + 10x + 25)) / (4x^2 + 10x + 25) = - (2x - 5) = - 2x + 5

The correct result would be - 2x + 5.
6 0
2 years ago
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Find cotθ, cosθ, and secθ, where θ is the angle shown in the figure.
Darina [25.2K]

Answer:

\cos( \theta)  =  \frac{5}{8}  \\  {8}^{2}  =  {5}^{2}  +  {opp}^{2}  \\ {opp}^{2}  = 64 - 25 = 39 \\ opp =  \sqrt{39}  \\  \sin(\theta)  =  \frac{\sqrt{39}}{8}  \\  \tan(\theta)  =  \frac{ \sqrt{39} }{5}  \\  \cot(\theta)  =  \frac{1}{\tan(\theta)}  =  \frac{1}{\frac{ \sqrt{39} }{5}}  \\ \cot(\theta)  =  \frac{5}{ \sqrt{39} }  \\  \csc( \theta) =  \frac{1}{\sin(\theta)}  =  \frac{1}{\frac{\sqrt{39}}{8}}   \\ \csc( \theta) = \frac{8}{ \sqrt{39} }  \\  \sec( \theta) =  \frac{1}{\cos( \theta) }  =  \frac{1}{ \frac{5}{8} }  \\ \sec( \theta) =  \frac{8}{5}

5 0
2 years ago
Name the intersection of lines a and c
emmainna [20.7K]
I think it is P because that is the intercecting point

3 0
3 years ago
The pH level, given the molar hydrogen ion concentration, can be determined using the equation
Strike441 [17]

Answer:

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Answer:

x=2

Step-by-step explanation:

So we have the equation:

5^x+5^{x+1}=150

First, separate the second term:

5^x+(5\cdot5^x)=150

Let u equal 5ˣ. So:

u+5u=150

Combine like terms:

6u=150

Divide both sides by 6:

u=25

Substitute back u:

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Take the base 5 logarithm of both sides:

\log_5(5^x)=\log_5(25)

The left cancels:

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Evaluate the right:

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So, our answer is 2.

And we're done!

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3 years ago
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