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1 year ago

PLEASE HELP QUICKKKK I GIVE BRAINLYIST PLEASEE

Mathematics

2 answers:

grandymaker [24]1 year ago

5 0

Answer:

Step-by-step explanation:

As you can see, each time (let's say n) increases by 1, it divides by 1/2. So from a1 to a2, you get 28/2 or 14, then from a2 to a3, 14/2 or 7.

7 being your answer.

Radda [10]1 year ago

4 0

Answer:

Step-by-step explanation:

Given the recursive formula.

$a_1=28\\a_n=1/2a_{n-1}$

Use it to determine the value of te third term.

$a_3=1/2a_2=1/2(1/2a_1) = 1/4a_1=1/4(28) = 7$

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3 3/5 times negative 8 1/3

Vesna [10]

-30 is the answer to your problem.

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2 years ago

Suppose that you are a city planner who obtains and sample of 20 randomly selected members of a mid-sized town in order to deter

Dmitry_Shevchenko [17]

Answer:

The critical value for the 95% confidence interval is z = 1.96.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.95}{2} = 0.025$

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The critical value for the 95% confidence interval is z = 1.96.

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2 years ago

What is the mean of this data set? 12,17,16,10,20,13,14,14,12,12,19,18

Gemiola [76]

Answer:

14.75 :) please give me brainliest :)

Step-by-step explanation:

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2 years ago

Read 2 more answers

Solve the equation<br>4(y-3)=13

I am Lyosha [343]

Step-by-step explanation:

$4(y - 3) = 13 \\ \\ \therefore \: 4y - 4 \times 3 = 13 \\ \\ \therefore \: 4y - 12 = 13\\ \\ \therefore \: 4y = 13 + 12 \\ \\ \therefore \: 4y = 25 \\ \\ \therefore \:y = \frac{25}{4} \\ \\ \therefore \:y = 6\frac{1}{4}$

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2 years ago

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Amelie's cat is 6 years older than her dog. The sum of their ages is 14 years. How old is Amelie's dog

creativ13 [48]

C+d=14
c-6=d
then you will plug c+6 in the first equation and you will get:
c+c-6=14
then you get
2c=20
c=10, so the cat is ten years old
the cat is 6 years older than the dog, so the dog is 4 years old
hope that helps :)

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2 years ago