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4 years ago

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Help on evaluating expressions

1 answer:

olasank [31]4 years ago

6 0

$4log_{216}6\\\\use:\ log_ab=\frac{log_cb}{log_ca}\\\\4log_{216}6=4\cdot\frac{log_66}{log_6216}=4\cdot\frac{1}{log_66^3}=\boxed{\frac{4}{3}}$

$2log_\frac{1}{2}\frac{1}{16}=2log_\frac{1}{2}\left(\frac{1}{2}\right)^4=4\cdot2log_\frac{1}{2}\frac{1}{2}=4\cdot2\cdot1=\boxed8$

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(x + 4) (x - 4) - x² + 16

Nitella [24]

Answer:

infinite solutions

Step-by-step explanation:

Hey there!

In order to solve this problem, we need to first distribute the $(x+4)(x-4)$

This is equal to $x^2-16$

Now we can combine like terms

$x^2$ and $-x^2$ cancel out

also

$16$ and $-16$ cancel out

The equation ends up as 0 = 0

So the answer to this answer is infinite solutions

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2 years ago

What is the graph of a quadratic equation known as?

Arte-miy333 [17]

Answer:

The graph of a quadratic function is a U-shaped curve called a parabola.

Step-by-step explanation:

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4 years ago

Needing help please.............

Margaret [11]

Use the formula y=mx+b

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4 years ago

The product of the roots of x² + 6x - 55 = 0 is:

Irina18 [472]

Roots are: -11, 5.
Product of them: (-11)*(5) = -55.

8 0

3 years ago

Read 2 more answers

Plz HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Alisiya [41]

$\boxed{ \boxed{\huge{ \mathrm{ \underline{ Answer } ✓ }}}}$

<u>Figure - 1</u> :

Let the missing side as " n "

$\mathrm{ \triangle DEF \sim \triangle DRQ}$

Therefore the sides will be proportional,

$\dfrac{n}{9} = \dfrac{4}{12}$

$n = \dfrac{1}{3} \times 9$

$n = 3 \: \: units$

_____________________________

<u>Figure - 2</u> :

Let the missing side as " m "

The Triangles are similar, therefore their sides will be proportional.

$\dfrac{m}{8} = \dfrac{9}{6}$

$m = \dfrac{3}{2} \times 8$

$m = 3 \times 4$

$m = 12 \: \: units$

_____________________________

$\mathrm{ ☠ \: TeeNForeveR \: ☠}$

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3 years ago

Read 2 more answers