Which of the following describes the transformation?

Mathematics

2 answers:

Anastaziya [24]2 years ago

6 0

Answer:

Step-by-step explanation:

Imagine a mirror at the Y-axis, the two triangles will be mirror-image of each other. So the CORRECT answer is B. Reflection over the Y axis

weeeeeb [17]2 years ago

5 0

Answer:

Step-by-step explanation:

I hope this helps!

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How to solve: <img src="https://tex.z-dn.net/?f=log_%7B3%7D%20%28x%2B6%29%20%2B%20log_%7B3%7D%28x-6%29%20%3D%204" id="TexFormula

Shalnov [3]

Collapse the logarithms into one:

$\log_3(x+6)+\log_3(x-6)=\log_3((x+6)(x-6))=4$

Then write both sides as powers of 3:

$3^{\log_3((x+6)(x-6))}=3^4$

$(x+6)(x-6)=81$

Simplify the left side and solve for $x$ :

$x^2-36=81$

$x^2=117$

$x=\pm\sqrt{117}=\pm3\sqrt{13}$

But we're not done yet. Notice that both $x+6$ and $x-6$ are negative when $x=-3\sqrt{13}$ . We can't take the logarithm of a negative number (the result isn't real-valued, anyway), so we throw this solution out, and we're left with just

$x=3\sqrt{13}$

5 0

3 years ago

Which addition does the model below represent?

Nastasia [14]

<h3>Answer:</h3>

[C] 3 + ( - 4).

<h3>Explanation:</h3>

First the arrow begins at 0 and moves to the right 3 spaces positive, ending at 3.
Then it moves backwards, which is subtracting left 4 spaces towards -1 past zero.
When adding a negative to a positive, you convert it to subtraction.
3 + -4 is the same as 3 - 4.

<u>Correct choice</u> - [C] 3 + (- 4).

<u>Note</u>: See the picture attached.