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Olenka [21]
3 years ago
7

HELP ME PLZZZ ITS PRECALC

Mathematics
1 answer:
Tema [17]3 years ago
5 0

Answer:

  8

Step-by-step explanation:

We observe that the logarithm bases are ...

  5√5 = √125 . . . . . 125 is the 2nd power of this

  2√2 = √8 . . . . . . . 8 is the 2nd power of this; 64 is the 4th power of √8

If we define ...

  p=\sqrt{125}\\q=\sqrt{8}

Then our logarithms are ...

  \log_{p}{p^2}=x=2\\\\\log_{q}{q^4}=y=4\\\\xy=2\cdot 4=8

The product of x and y is 8.

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Which equation is the inverse of y = 9x2 – 4?
devlian [24]

<u>Answer:</u>-

The two inverses are,

y = \sqrt {\frac{x+4}{9}}

and,  y =  - \sqrt {\frac{x+4}{9}}

<u>Step-by-step calculation:-</u>

y = 9 \times x^{2} - 4

⇒x^{2} = \frac{y+4}{9}

⇒x = \mp \sqrt {\frac{y+4}{9}}

So, the two inverses are,

y = \sqrt {\frac{x+4}{9}}

and,  y =  - \sqrt {\frac{x+4}{9}}

8 0
3 years ago
Read 2 more answers
What is a number t divided by 82 in an algebraic expression?
irinina [24]
Hey there, Lets solve this step by step. 

<span>A number t divided by 82 
</span>
Let the number be represented by y. 

<span>t divided by 82 = t / 8 
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Therefore- 

y= t/82 

<span>In algebraic expressions, "y" is normally used as the dependent variable and "x" is normally used as the independent variable, instead of other variables. So that is why i used the variable y in the equation. </span>
3 0
3 years ago
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Simplify.<br> 4(m-n)^2+4m(m-n)
Cerrena [4.2K]

Answer:

Step-by-step explanation:

hello :

4(m-n)²+4m(m-n) =(m - n)(4(m-n)+4m)=(m-n)(8m-4n)=8m²-4mn-8nm+4n²

= 8m²+4n²-12mn

5 0
4 years ago
Point O is the center of the circle. What is the value of X? <br> Answer options: 64, 54, 34, 44.
makkiz [27]

Answer:

34°

Step-by-step explanation:

The angle made when a tangent and a radius intersect=90°

Therefore angle OQP =90°

The triangle made by the two radii is isosceles ( base angles are equal) hence angle POQ=180-2(62)

=56°

The right triangle  OPQ can hence be solved as follows

angle POQ=56°

angle OQP=90°

angle x=180-(56+90)=34° as all the interior angles of any triangle add up to 180°

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3 years ago
Helppppp meeeeeeeee Explain how to evaluate
poizon [28]

A variable is a letter, for example x, y or z, that represents an unspecified number.

6 + x = 12

To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. In the example above, the variable x is equal to 6 since 6 + 6 = 12.

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4 years ago
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