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3 years ago

Pls help pls pls pls

Mathematics

1 answer:

Sindrei [870]3 years ago

8 0

$\bf \begin{array}{llccll}
y=&1x^2&-6x&+9\\
&\uparrow &\uparrow &\uparrow \\
&a&b&c
\end{array}\qquad discriminant\implies b^2-4ac$

so... what does that give you for the discriminant?

if it's a negative value, no solutions
if it's a positive value, two solutions
if it's 0, one solution

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tiny-mole [99]

The formula for an infinite geometric sequence is the following:

$S_{∞}= \frac{a_{1}}{1-r}$

Just substitute the values of $a_{1}$ and r into the formula.

$S_{∞}=\frac{10}{1-0.5}$
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Therefore, the answer is 20.

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3 years ago

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3 years ago

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Shalnov [3]

The correct answer is

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<h3>What happened when light travels through the different media?</h3>

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light changes both wavelength and speed when it travels through different media, but the frequency remains the same.

Therefore the option c is correct that

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2 years ago

CAN SOMEONE HELP ME WITH THIS

Anvisha [2.4K]

Answer:

Step-by-step explanation:

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x=87

8 0

3 years ago

FIRST ANSWER GETS BRAINLIEST!!!

maksim [4K]

I believe it is A and C.

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I hope this helps!!!

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3 years ago