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
Darya [45]
3 years ago
15

a tree casts a shadow that is 20 ft long. the angle of elevation of the sun is 29°. how tall is the tree?

Mathematics
1 answer:
mars1129 [50]3 years ago
3 0
You can use the trig ratios. Draw a diagram to see which one is appropriate. 
Tan would be used.
Tan29=x/20
20Tan29=x
Put this into your calculator and see what you get
You might be interested in
Who is good at geometry that can help me?
joja [24]

Answer:

A

Step-by-step explanation:

B and D have to be supplementary otherwise it wouldn't be a parallelogram

5 0
3 years ago
A submarine sits at –300 meters in relation to sea level. Then it descends 115 meters. What is its new position in relation to s
Dovator [93]

Answer:

-415 feet

Step-by-step explanation:

-300-115 = -415

7 0
3 years ago
The volume v of a sphere with radius r is given by formula v=4/3 . if radius of a spherical rubber ball is 1 1\4 inches , what i
Aliun [14]
Actually, the correct volume formula is:
Sphere Volume   = <span>  4/3 • <span>π <span>• r³
</span></span></span>Sphere Volume   = <span>  (4/3) * PI * (1.25)^3
</span>Sphere Volume   =   (4/3) * PI * <span> <span> <span> 1.953125 </span> </span> </span>
Sphere Volume   =   <span> <span> <span> 8.1812308687 </span> </span> </span> cubic inches
6 0
3 years ago
What is the equation of the linear function ?
zubka84 [21]

Answer:

B: -1/2x +3

Step-by-step explanation:

the graph is up 3 units, making the +3. Rise/run to determine slope. it rises 1 unit for every 2 units it runs. i

3 0
3 years ago
50 students live in a dormitory. The parking lot has the capacity for 30 cars. Each student has a car with probability 12 , inde
Maurinko [17]

Answer:

P(X is greater than 30) = 0.06

Step-by-step explanation:

Given that:

Sample proportion (p) = 0.5

Sample size = 30

The Binomial can be approximated to normal with:

\mu = np = 50 \times 0.5 \\ \\ \mu= 25

\sigma = \sqrt{np(1-p) } \\ \\  \sigma = \sqrt{50 \times (0.5)(1-0.5) } \\ \\ \sigma = 3.536

To find:

P(X> 30)

So far we are approximating a discrete Binomial distribution using the continuous normal distribution. 30 lies between 29.5 and 30.5

Normal distribution:

x = 30.5, \mu = 25, \sigma = 3.536

Using the z test statistics;

z = \dfrac{x - \mu}{\sigma}

z = \dfrac{30.5 - 25}{3.536}

z = \dfrac{5.5}{3.536}

z = 1.555

The p-value for P(X>30) = P(Z > 1.555)

The p-value for P(X>30) = 1 - P (Z< 1.555)

From the z tables;

P(X> 30) = 1 - 0.9400

Thus;

P(X is greater than 30) = 0.06

7 0
3 years ago
Other questions:
  • Am i right or am i wrong
    6·1 answer
  • A model of the apartment is shown where 1/4 inch represents 3 feet in the actual apartment. Find the actual area of the master b
    8·1 answer
  • X-8 mathematics expression
    11·1 answer
  • The left side of a solid block is held at a constant temperature of 200°C. The temperature profile within the block is given by
    14·1 answer
  • What does p( a or b) =.15 a customer buys a mouse and a customer buys a bird
    12·1 answer
  • I hate y'all just waisting my póints (╥﹏╥)​
    7·1 answer
  • Can somebody just give me the answer plz and if you know how to do geometry drop your insta along with the answer pleaseee
    10·2 answers
  • I need help with this
    10·1 answer
  • HELP PLEASE I NEED THIS DONE ASAP PLUS BRAINLIEST
    15·1 answer
  • What is the area of 2 2/5 and 4 1/8
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!