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svet-max [94.6K]
2 years ago
14

8Answers and questions attached* please tell me the correct answer

Mathematics
1 answer:
Paladinen [302]2 years ago
5 0

Answer:

I do not know

Step-by-step explanation:

because 150 spins is way too much

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Discuss the order of operations to explain why the expressions [(12÷(2+ 2)] ^3 and (12 ÷ 2) + 2^3 do not havethe same value.
Volgvan

The order of operations are different. Hence, the answers are not equal

Explanation:

Oder of operations using PEMDAS (Parenthesis, Exponent, Multiplication, Division, Addition, Subtraction)

[(12÷(2 + 2)]³ and (12 ÷ 2) + 2³

we solve seperately:

[(12÷(2+ 2)]³

we solve the parenthesis first:

(12 ÷ 4)³

then we apply division:

= (3)³

Then expand the exponent:

= 27

(12 ÷ 2) + 2³

we solve the parenthesis first:

6 + 2³

we expand the exponent:

6 + 8

we apply addition:

14

The order of operations are differnt. Hence, the answers are not equal

5 0
1 year ago
Approximately 4/5 of u.s. homeworkowners have a cell phone.what percent of homeowners do not have a cell phone?
harina [27]
So you need to get the fraction to a percentage. Divide 100 by 5 to see how much you need to multiply the 4 by. 100/5 is 20. So you times the 4 by 20 to get 80. 80% have a cellphone so simply minus 80 from 100 to get your answer of those who don't. Therefore the answer is 20.
3 0
2 years ago
A bag contains 8 yellow marbles and 6 blue. What number of yellow marbles can you add to the bag so that the ratio of yellow to
Kazeer [188]
8 : 6 ...add 7 yellow and it becomes 15:6 when reduced = 5:2
6 0
2 years ago
Read 2 more answers
An example problem in a Statistics textbook asked to find the probability of dying when making a skydiving jump.
MArishka [77]

Answer:

(a) 0.999664

(b) 15052

Step-by-step explanation:

From the given data of recent years,  there were about 3,000,000 skydiving jumps and 21 of them resulted in deaths.

So, the probability of death is \frac{21}{3000000}==0.000007.

Assuming, this probability holds true for each skydiving and does not change in the present time.

So, as every skydiving is an independent event having a fixed probability of dying and there are only two possibilities, the diver will either die or survive, so, all skydiving can be regarded as is Bernoulli's trial.

Denoting the probability of dying in a single jump by q.

q=7\times 10^{-6}=0.000007.

So, the probability of survive, p=1-q

\Rightarrow p=1-7\times 10^{-6}=0.999993.

(a) The total number of jump he made, n=48

Using Bernoulli's equation, the probability of surviving in exactly 48 jumps (r=48) out of 48 jumps (n=48) is

=\binom(n,r)p^rq^{n-r}

=\binom(48,48)(0.999993)^{48}(0.000007)^{48-48}

=(0.999993)^{48}=0.999664 (approx)

So, the probability of survive in 48 skydiving is 0.999664,

(b) The given probability of surviving =90%=0.9

Let, total n skydiving jumps required to meet the surviving probability of 0.9.

So, By using Bernoulli's equation,

0.9=\binom {n }{r} p^rq^{n-r}

Here, r=n.

\Rightarrow 0.9=\binom{n}{n}p^nq^{n-n}

\Rightarrow 0.9=p^n

\Rightarrow 0.9=(0.999993)^n

\Rightarrow \ln(0.9)=n\ln(0.999993) [ taking \log_e both sides]

\Rightarrow n=\frac {\ln(0.9)}{\ln(0.999993)}

\Rightarrow n=15051.45

The number of diving cant be a fractional value, so bound it to the upper integral value.

Hence, the total number of skydiving required to meet the 90% probability of surviving is 15052.

3 0
3 years ago
Algoritmo que permita calcular el área de un cuadrado
dmitriy555 [2]

Answer:

espero que esto ayude

Step-by-step explanation:

length = int (input ("Ingresa una longitud"))

width = int (input ("Ingresa un ancho"))

área = largo * ancho

imprimir ("El área es" + área)

8 0
3 years ago
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