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3 years ago

What is a rule for the sequence below ? 1.8,2.85,3.90,4.95,6

Mathematics

2 answers:

slavikrds [6]3 years ago

4 0

You Add 1.05 Hope My Answer Helps You

Kisachek [45]3 years ago

4 0

Is the number increasing or decreasing?
Then do the inverse operation. Such as:
The example you give above, the numbers are increasing (adding) so to find the sequence, use minus. So now to solve the problem, you have to go backward. Such as 6 minus the number back of it so, 6-4.95=1.41. This means to get 4.95 to 6 is 1.41. And then do the next step the same thing. If you end up more than two sequel, it's okay. Just say (Example)> The sequel it is going back 5.87 and 5.89.

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An unbalanced die is manufactured so that there is a 20% chance of rolling a “six." The die is rolled 6

SIZIF [17.4K]

Answer:

Probability of rolling at least 4 sixes is 0.01696.

Step-by-step explanation:

We are given that an unbalanced die is manufactured so that there is a 20% chance of rolling a “six." The die is rolled 6 times.

The above situation can be represented through binomial distribution;

$P(X = r) = \binom{n}{r} \times p^{r} \times (1-p)^{n-r};x=0,1,2,3,.......$

where, n = number trials (samples) taken = 6 trials

r = number of success = at least 4

p = probability of success which in our question is probability of

rolling a “six", i.e; p = 0.20

Let X = Number of sixes on a die

So, X ~ Binom(n = 6, p = 0.20)

Now, Probability of rolling at least 4 sixes is given by = P(X $\geq$ 4)

P(X $\geq$ 4) = P(X = 4) + P(X = 5) + P(X = 6)

= $\binom{6}{4} \times 0.20^{4} \times (1-0.20)^{6-4}+\binom{6}{5} \times 0.20^{5} \times (1-0.20)^{6-5}+\binom{6}{6} \times 0.20^{6} \times (1-0.20)^{6-6}$

= $15 \times 0.20^{4} \times 0.80^{2}+6 \times 0.20^{5} \times 0.80^{1}+1 \times 0.20^{6} \times 0.80^{0}$

= 0.0154 + 0.00154 + 0.000064

= 0.01696

Therefore, probability of rolling at least 4 sixes is 0.01696.

8 0

3 years ago

Franklin deposits $3500 in an account that earns 3.5% interest compounded annually. What function equation represents the balanc

lara31 [8.8K]

So this problem can be solve using the formula:
F = P(1+i)^t
Where F is the balance account after t years
P is money deposited
i is the fraction interest rate
F = 3500 (1+0.35)^t
F = 3500 (1.35)^t is the function equation represents the balance of the account after t years

5 0

3 years ago

I need it ASAP! Melanie had bags of sand for a sandbox. The sandbox needs bags of sand to fill it.

Orlov [11]

Melanie had 2 1/2 bags of sand for a sandbox. The sandbox needs 3 1/4 bags of sand to fill it. Melanie said she still needs 3/4 of a bag to fill it. Is that answer reasonable?

3.25 or 3 and 1/4 - 2.25 or 2 and 1/2= .75 or 3/4 so the answer is C.

7 0

3 years ago

The sum of 2 of the exterior angles of a triangle is 222 degrees. What is the measure of the third exterior angle?

zysi [14]

Answer:

Exterior angles always add up to 360 degrees, therfore 360 - 222 = 138

Step-by-step explanation:

360 - 222 = 138

the answer to your question is 138degrees.

For any shape the exterior angles will always add up to 260 degrees.

Hope this helps in the future!

5 0

3 years ago

Read 2 more answers

The Happy-Go-Lucky Beach was 163 feet long from parking lot to high tide. After last year's hurricane came ashore, the beach onl

ANTONII [103]

Answer:

About 5.5% decrease

Step-by-step explanation:

Here, we want to calculate the percentage increase or decrease and its value.

The first thing to do here is to check if we are going to have a decrease or an increase.

since the value before the change is higher than the value after the change, then what we have is a decrease.

Mathematically, the percentage decrease is calculated as follows;

% decrease = (old value - new value)/old value * 100%

old value = 163 feet

new value = 154 feet

% decrease = (154-163)/163 * 100%

% decrease = -9/163 * 100%

% decrease = -5.52%

Thus the best answer is about 5.5% decrease

4 0

3 years ago