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3 years ago

A tree and its shadow is proportional to Harry and his shadow. If Harry is 6 feet tall and his shadow

Mathematics

2 answers:

Alinara [238K]3 years ago

8 0

Answer:12

Step-by-step explanation:

Zigmanuir [339]3 years ago

6 0

Answer: the height of the tree would be 10 feet.

Step-by-step explanation:

A tree and its shadow is proportional to Harry and his shadow. This means that

Height of the tree/height of the tree's shadow = Harry's height/height of his shadow

If Harry is 6 feet tall, his shadow is 9 feet and the tree's shadow is 15 feet long, then the height of the tree would be

6/9 = height of tree/15

height of tree = (6 × 15)/9 = 10 feet.

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The two cones below are similar what is the value of x?

Gwar [14]

Answer: D. 0.6

Step-by-step explanation:

When the two cones are similar the corresponding radius and heights are in the same proportion,

Thus, By the given figure,

Two cones having radius 3 and x and having heights 10 and 2 respectively are similar.

So, We can write,

$\frac{10}{2} = \frac{3}{x}$

$10 x = 2\times 3$

$10 x = 6$

$x = 0.6$

Thus, Option D is correct.

5 0

2 years ago

1. What is the mean for the following scores: 2, 5, 4, 1, 8? A. 3 B. 4 c. 5 20

atroni [7]

Answer to your question is:

B. 4

Explanation:

2 + 5 + 4 + 1 + 8 = 20

20 ÷ 5 = 4

8 0

3 years ago

Read 2 more answers

Which one is this please answer it and get thanks from me if ur right

mote1985 [20]

♡ The Question ♡

- Which of the following is equivalent to the power shown below? 8^4

*୨୧ ┈┈┈┈┈┈┈┈┈┈┈┈ ୨୧*

☆ The Answer ☆

- Your answer should be C!

*୨୧ ┈┈┈┈┈┈┈┈┈┈┈┈ ୨୧*

♡ The Explanation/Step-By-Step ♡

- When your power is being shown as 8^4, this can be represented as 'Eight four times.' This means it could be, 8, 8, 8, 8. Hope this helps!

*୨୧ ┈┈┈┈┈┈┈┈┈┈┈┈ ୨୧*

☆ Tips ☆

- No tips provided!

4 0

2 years ago

How many gallons of a 3% salt solution must be mixed with a 7% salt solution to obtain 100 gallons of a 5% salt solution.

MrRissso [65]

Answer:

50 gallons of each.

Step-by-step explanation:

6 0

2 years ago

Find the probability of at least 6 failures in 7 trials of a binomial experiment in which the probability of success in any one

oksano4ka [1.4K]

Answer:

$P(x \geq 6)=P(X=6)+P(X=7)$

And we can find the individual probabilities:

$P(X=6)=(7C6)(0.91)^6 (1-0.91)^{7-6}=0.358$

$P(X=7)=(7C7)(0.91)^7 (1-0.91)^{7-7}=0.517$

And replacing we got:

$P(x \geq 6)=P(X=6)+P(X=7)= 0.358+0.517=0.875$

Step-by-step explanation:

Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

Solution to the problem

Let X the random variable of interest, on this case we now that:

$X \sim Binom(n=7, p=1-0.09=0.91)$

The probability associated to a failure would be p =1-0.09 = 0.91

The probability mass function for the Binomial distribution is given as:

$P(X)=(nCx)(p)^x (1-p)^{n-x}$

Where (nCx) means combinatory and it's given by this formula:

$nCx=\frac{n!}{(n-x)! x!}$

And we want to find this probability:

$P(x \geq 6)=P(X=6)+P(X=7)$

And we can find the individual probabilities:

$P(X=6)=(7C6)(0.91)^6 (1-0.91)^{7-6}=0.358$

$P(X=7)=(7C7)(0.91)^7 (1-0.91)^{7-7}=0.517$

And replacing we got:

$P(x \geq 6)=P(X=6)+P(X=7)= 0.358+0.517=0.875$

6 0

2 years ago