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3 years ago

URGENT HELP PLEASE: What are the values of a1 and r of the geometric series?

Mathematics

1 answer:

lawyer [7]3 years ago

6 0

Answer:

Third option is the correct choice.

Step-by-step explanation:

$a_1$ is the first term of the sequence which is given to be 1.

$r$ is the common ration which can be found as:

$r=\frac{3}{1}=3\quad r=\frac{9}{3}=3$

Best Regards!

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The Math Club bought 16 graphing calculators for $765. The TI-70 model costs $40 and

Afina-wow [57]

Answer:

They bought 5

Step-by-step explanation:

65x+40y=765

65(5)+40(11)=765

5 0

2 years ago

The price of a stock decreased by 60 cents one week, decreased 10 cents the next week, and decreased another 20 cents the follow

mel-nik [20]

Hi there! Hopefully this helps!

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It decreased by 30 cents per week.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The average rate of change is calculated as:

the ratio of the sum of the change in the three weeks divided by the number of weeks. (The number of weeks being 3)

Rate of change = $\frac{-60 -10 -20}{3}$ .

(-60 + -10 + -20 = -90). So, to simplify it:

$\frac{-90}{3}$ = -30

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Incase you are confused:

Since the average rate of change is negative, this means that the stock price has decreased.

3 0

2 years ago

Can you divide a donut into 5 pieces (doesn't have to be equal)? If so could you explain or draw a diagram. using 2 straight cut

svp [43]

Answer:

Step-by-step explanation:

Its not possible to make 5 pieces with only 2 cuts. Anyway you use your two cuts would not result in 5 pieces

6 0

2 years ago

Read 2 more answers

Hello Can Someone Please Answer This Math Question

Brrunno [24]

Answer:

200 in^2

Step-by-step explanation:

5•4+10•4+10•5=

200 in^2

i hope this helped you

3 0

2 years ago

Please answer 5x < 10?

Natalka [10]

Answer:

Step-by-step explanation:

Solving inequalities is easy, you just need to follow the standard rules of algebra. Also, when multiplying or dividing by a negative number, the inequality sign is reversed.

Step 1: Divide by 5

x < 2

Step 2: Check

5(1) < 10

5 < 10✔️

Step 3: Check Again

Since an inequality has multiple solutions, it is important to check at least 2, to determine if the entire range of solutions is true.

5(-6) < 10

-30 < 10✔️

Step 4: Verified Answer

x < 2

I'm always happy to help :)

7 0

2 years ago

Read 2 more answers