3 years ago

Write the explicit formula for the geometric sequence 64, 32, 16, 8, ...

Mathematics

1 answer:

Montano1993 [528]3 years ago

3 0

Explain more please, than I will help you out :))

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Answer:

It is red

Step-by-step explanation:

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3 years ago

What does not represent the quotient of 17 divided by 10?

JulijaS [17]

Answer:

Step-by-step explanation:

The quotient of 17 divided by 10 is the fraction 17/10 or simplified 1 7/10, 1.7 or 1 R 7. It is NOT 10 / 17. C is the correct answer since it does not represent the quotient described.

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Kruka [31]

Answer:

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Step-by-step explanation:

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3 years ago

(-2/3, sqrt5/3) is a point on a unit circle. Find the cosine, cosecant, and sine of the angle.

Nana76 [90]

Look at the picture.

$\csc\theta=\dfrac{1}{\sin\theta}=\dfrac{1}{\frac{y}{r}}=\dfrac{r}{y}$

We have the right triangle x, y and r. From the Pythagorean theorem we have:

$r^2=x^2+y^2\to r=\sqrt{x^2+y^2}$

We have the point

$\left(-\dfrac{2}{3};\ \dfrac{\sqrt5}{3}\right)$

Substitute:

$r=\sqrt{\left(-\dfrac{2}{3}\right)^2+\left(\dfrac{\sqrt5}{3}\right)^2}\\\\r=\sqrt{\dfrac{4}{9}+\dfrac{5}{9}}\\\\r=\sqrt{\dfrac{9}{9}}\\\\r=1$

$\csc\theta=\dfrac{1}{\frac{\sqrt5}{3}}=\dfrac{3}{\sqrt5}=\dfrac{3\cdot\sqrt5}{\sqrt5\cdot\sqrt5}=\boxed{\dfrac{3\sqrt5}{5}}$

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3 years ago

• The total rise of a set of stairs is 81.125". If there are 11 risers, what is the height of

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Answer:

7.375".

Step-by-step explanation:

That would be 81.125 / 11

= 7.375 ".

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3 years ago