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3 years ago

What is the probability of getting zero heads in six tosses?

Mathematics

1 answer:

lesantik [10]3 years ago

3 0

The ratio of the probability of that is 3 : 6

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Urgent Fast!!!!!!!??????

faltersainse [42]

If he has 484 plants and there are as many rows as there are plants in each row, his field is a square.

The area of a square = (side)^2

In this problem,

Area = 484

side = # of rows

Let's plug our values into the formula above

484 plants = (side)^2

Take the sqrt of both sides.

22 rows = side.

8 0

3 years ago

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Justin deposited $2,000 into an account 5 years ago. Simple interest was paid on the account. He has just withdrawn $2,876. What

sdas [7]

Answer: $8.76\%$

Step-by-step explanation:

The formula to find the final amount after getting simple interest :

$A=P(1+rt)$ , where P is the principal amount , r is rate of interest ( in decimal )and t is time(years).

Given : Justin deposited $2,000 into an account 5 years ago.

i.e. P = $2,000 and t= 5 years

He has just withdrawn $2,876.

i.e. we assume that A = $2876

Now, Put all the values in the formula , we get

$(2876)=(2000)(1+r(5))\\\\\Rightarrow\ 1+5r=\dfrac{2876}{2000}\\\\\Rightarrow\ 1+5r=1.438\\\\\Righhtarrow\ 5r=0.438\\\\\Rightarrow\ r=\dfrac{0.438}{5}=0.0876$

In percent, $r=0.0876\times100=8.76\%$

hence, He earned $8.76\%$ of interest on account.

6 0

3 years ago

Assume the heights in a male population are normally distributed with mean 70.3 inches and standard deviation 4.1 inches. If a r

klemol [59]

Answer:

73.1 inches

Step-by-step explanation:

We solve for this using z score formula.

z-score is z = (x-μ)/σ,

where x is the raw score,

μ is the population mean

σ is the population standard deviation.

x = unknown = randomly selected male's height

μ = 70.3 inches

σ = 4.1 inches

z = is not given but we are given its percentile which is 75

The z score for a 75th percentile = 0.674

Hence,

0.674 = x - 70.3/4.1

Cross Multiply

0.674 × 4.1 = x - 70.3

2.7634 = x - 70.3

x = 70.3 + 2.7634

x = 73.0634 inches

The height of the randomly selected male = 73.0634

Therefore, the height of the randomly selected male to the nearest tenth of an inch is 73.1 inches

7 0

3 years ago

Which statement is true about Trapezoids ABCD and DEFG.?

kirill [66]

I believe your answer is B, though I am not positive. I am doing the same question right now, so if it is correct I will let you know!

Hope this helps!

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2 years ago

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R=4+7x-sx <br> I need help so any one can help with this

chubhunter [2.5K]

What do you need to solve for?

X=r-4/7-s

S=-r/x+4/x+7

R=-sx+7x+4

8 0

2 years ago