1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
finlep [7]
3 years ago
14

A tree casts a shadow of 24 feet at the same time as a 5-foot tall man casts a shadow of 4feet. Find the height of the tree.

Mathematics
1 answer:
Nitella [24]3 years ago
7 0

Answer:

30 ft

Step-by-step explanation:

This is a problem of similar triangles.

         | \

         |    \

         |      \

     h  |        \

         |          \

         |         5|\

         |           | 4\

          <----24---->

      tree     man

The height of the man is 5 ft.

The shadow of the tree is 24 ft.

The shadow of the man is 4 ft.

We have similar triangles, so the lengths of their sides are proportional.

h/24 = 5/4

Cross multiply.

4h = 24 * 5

Divide both sides by 4.

h = 6 * 5

h = 30

Answer: 30 ft

You might be interested in
Expand each expression
scoray [572]

Answer:

5log(a) +2log(b)

Step-by-step explanation:

you were close, but you dont multiply the exponents together since a and b are two different variables

6 0
3 years ago
Read 2 more answers
In a four digit number, the digit in thousand’s place in 4 and the digit in the one’s place is twice that in the thousand’s plac
ale4655 [162]

Answer:

Step-by-step explanation:

As 4 is accumulated by thousands place

And ones place is 4 into 2/twice

And hundreds place accumulates zero

And tens place is 4 - 0=4

The no is

4048

5 0
3 years ago
The probability that a randomly selected 3-year-old male chipmunk will live to be 4 years old is 0.96516.
mezya [45]

Using the binomial distribution, it is found that there is a:

a) The probability that two randomly selected 3-year-old male chipmunks will live to be 4 years old is 0.93153 = 93.153%.

b) The probability that six randomly selected 3-year-old male chipmunks will live to be 4 years old is 0.80834 = 80.834%.

c) The probability that at least one of six randomly selected 3-year-old male chipmunks will not live to be 4 years old is 0.19166 = 19.166%. This probability is not unusual, as it is greater than 5%.

-----------

For each chipmunk, there are only two possible outcomes. Either they will live to be 4 years old, or they will not. The probability of a chipmunk living is independent of any other chipmunk, which means that the binomial distribution is used to solve this question.

Binomial probability distribution  

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

C_{n,x} = \frac{n!}{x!(n-x)!}

The parameters are:

  • x is the number of successes.
  • n is the number of trials.
  • p is the probability of a success on a single trial.

In this problem:

  • 0.96516 probability of a chipmunk living through the year, thus p = 0.96516

Item a:

  • Two is P(X = 2) when n = 2, thus:

P(X = 2) = C_{2,2}(0.96516)^2(1-0.96516)^{0} = 0.9315

The probability that two randomly selected 3-year-old male chipmunks will live to be 4 years old is 0.93153 = 93.153%.

Item b:

  • Six is P(X = 6) when n = 6, then:

P(X = 6) = C_{6,6}(0.96516)^6(1-0.96516)^{0} = 0.80834

The probability that six randomly selected 3-year-old male chipmunks will live to be 4 years old is 0.80834 = 80.834%.

Item c:

  • At least one not living is:

P(X < 6) = 1 - P(X = 6) = 1 - 0.80834 = 0.19166

The probability that at least one of six randomly selected 3-year-old male chipmunks will not live to be 4 years old is 0.19166 = 19.166%. This probability is not unusual, as it is greater than 5%.

A similar problem is given at brainly.com/question/24756209

6 0
3 years ago
When factored into primes 2020=2^2*5^1*101^1.How many positive non-prime factors does 2020 have?
valentinak56 [21]

Answer:

balls

Step-by-step explanation:

3 0
3 years ago
20 The table shows the linear relationship between the balance of a student's
Pavlova-9 [17]

Answer:7

Step-by-step explanation:it’s 7

7 0
3 years ago
Other questions:
  • Factor x^3 2x^2-29x-30
    5·1 answer
  • The area of a rectangular field is 96m2. Te length of one side is 12m. The farmer needs to know its perimeter to work out how mu
    5·1 answer
  • at a grocery store, salted peanuts in the shell cost .30 cents per ounce. Is $5.00 enough money to buy 1 pound of peanut? If it
    8·1 answer
  • Order these from least to greatest: .25, 3/8, 7/12, 5/16, .5
    5·1 answer
  • A person has a bag containing dimes and nickels. There are a total of 120 coins in the bag, and the total value of the coins is
    11·1 answer
  • 2(4x+3)=10x-2<br><br> So like how in hell do you do this I’m soooo confused
    14·2 answers
  • find the difference of each number and 4. Complete the table to support your answers. The first example is provided. Number Subt
    15·1 answer
  • Choose the equation of the vertical line passing through the point (−2, 3). (5 point)
    12·1 answer
  • Ahh help!!
    12·1 answer
  • Free pts. Thank me later
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!