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3 years ago

Which of the following is the rule for the geometric sequence 1, 3, 9, 27, ...?

Mathematics

2 answers:

RoseWind [281]3 years ago

7 0

Answer:

D. an =1 x 3 n-1 is the correct answer.

Step-by-step explanation:

Dmitriy789 [7]3 years ago

4 0

Answer:

Multiply by three for every number 1*3 =3 3*3=9 9*3=27

Step-by-step explanation:

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When Deven makes chocolate milk, he mixes 2 cups of milk with 3 tablespoons of chocolate syrup Here is a table that shows how to

Rzqust [24]

Answer: 1.5

Step-by-step explanation:

6 0

3 years ago

If sin(t) = 3/5 and t is in the 2nd quadrant, find cos(t).

NemiM [27]

Cosine is $\frac{hypotenuse}{adjacent}$ .

Apply the equation:

$sin(t) = \frac{3}{5} \\3^2 + b^2 = 5^2\\b^2 = 5^2 - 3^2\\\\\sqrt{b^2} = \sqrt{5^2}- \sqrt{3^2}\\\\\\b = 5 - 3 \\\\b = 2$

B is the adjacent side so

cosine is:

Cos(t) = 5/2

Have a great day,

And I hope this helps you!

5 0

3 years ago

Solve for the indicated variable: ⅖(z + 1) = y for z.

sweet [91]

Answer:

z = 5/2y -1

Step-by-step explanation:

We observe that z has ...

1 added
the sum multiplied by 2/5

To solve for z, we undo these operations in reverse order.

$\dfrac{2}{5}(z+1)=y\qquad\text{given}\\\\z+1=\dfrac{5}{2}y\qquad\text{multiply by 5/2}\\\\\boxed{z=\dfrac{5}{2}y-1}\qquad\text{subtract 1}$

5 0

3 years ago

Read 2 more answers

The function A = 15x - x2, where x is the width in yards, gives the area A of a llama pen in square yards. Make a table using 1/

Mnenie [13.5K]

Answer:

The width which gives the greatest area is 7.5 yd

Step-by-step explanation:

This is an application of differential calculus. Given the area as a function of the width, we simply need to differentiate the function with respect to x and equate to zero which yields; 15-2x=0 since the slope of the graph is zero at the turning points. Solving for x yields, x=7.5 which indeed maximizes the area of the pen

6 0

3 years ago

Help I will mark brain list.

artcher [175]

Answer: the area equals 580

Step-by-step explanation: the area is length times height times width and it all equals to 580

hope this helps

4 0

3 years ago