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
Anit [1.1K]
3 years ago
10

You have a large tree in your front yard. At noon the tree casts a circular shadow with a radius of 9 m. You are now planting a

tree in your back yard. At noon it's shadow will have a radius of 4 m. How much of your yard is shaded by the two trees at noon?
Mathematics
1 answer:
stellarik [79]3 years ago
8 0

Answer:

  97π m² ≈ 304.7 m²

Step-by-step explanation:

The area of a circle is given by the formula ...

  A = πr²

The sum of the areas of the two circles is ...

  A = π(9 m)² + π(4 m)² = π(81 +16) m²

  = 97π m² ≈ 304.7 m²

You might be interested in
What is the length of DE?
Katyanochek1 [597]

Answer:

The answer would be 5 .

Bcoz in first Figure :-

12 - 9 = 3

Then ,

8 - 3 = 5

Step-by-step explanation:

<h2>Hope this helps you !! </h2>
3 0
2 years ago
Miss Allen read for 3/4 of an hour less than the student who read the most. How long sis Miss Allen read for?
kolbaska11 [484]

Answer:

See Explanation

Step-by-step explanation:

Given

Allen = \frac{3}{4}hr less than the most hour

Required

Hours read by Miss Allen

The question is incomplete, as the hours read by each student is not given.

To solve this, I will assume that the longest hours read by a student is x.

So, the expression for Miss Allen will be:

Allen = x - \frac{3}{4}hr

Assume that x = 1hr

The expression becomes

Allen = 1hr - \frac{3}{4}hr

Take LCM and solve

Allen =\frac{4 - 3}{4}hr

Allen =\frac{1}{4}hr

7 0
3 years ago
number 3 says,"If u and v are the measures of complementary angles such that sin u =2/5 and tan v =(square root of 21) 21/2, lab
vodomira [7]

Answer and Explanation:

Using trig ratios, we can express the given values of sin u and tan v as shown below

\begin{gathered} \sin u=\frac{opposite\text{ of angle u}}{\text{hypotenuse}}=\frac{2}{5} \\ \tan v=\frac{opposite\text{ of angle v}}{\text{hypotenuse}}=\sqrt[]{21} \end{gathered}

So we can go ahead and label the sides of the triangle as shown below;

We can find the value of u as shown below;

\begin{gathered} \sin u=\frac{2}{5} \\ u=\sin ^{-1}(\frac{2}{5}) \\ u=23.6^{\circ} \end{gathered}

We can find v as shown below;

\begin{gathered} u+v+90=180\text{   (sum of angles in a triangle)} \\ v+23.6+90=180 \\ v=180-113.6 \\ v=66.4^{\circ} \end{gathered}

5 0
2 years ago
Help sleepyhelp asap
SVEN [57.7K]

Answer:

The one that has the number of meals in the side and the one that has number of days

Step-by-step explanation:

If it’s 3 meals a day u would want the one that says meals and days now if u look at the chart u can see that this one has 3 meals for one day which is the same as the equation she has

Hope this helps

8 0
3 years ago
1. (8 pts) Completely simplify the following expression (leave your answer in factored form). State the
Sever21 [200]

Answer:

Socratic app

Step-by-step explanation:

it will help you

7 0
3 years ago
Other questions:
  • The student business club on your campus has decided to hold a pizza fund raiser. The club plans to buy 50 pizzas from Dominos a
    10·1 answer
  • Estimate 212,515 + 396,705
    13·1 answer
  • The taxi and takeoff time for commercial jets is a random variable x with a mean of 8.4 minutes and a standard deviation of 3.5
    13·1 answer
  • 2. To build a Histogram from a frequency table, first we need to s____<br> __the data.
    11·2 answers
  • Find the length and width of a rectangle that has the given perimeter and a maximum area. Perimeter: 116 meters
    9·1 answer
  • This is for a lot of points plz help me
    14·2 answers
  • jane and ken share some money in the ratio 5:3. ken's share is $16 less than jane's share. find each person's share
    5·1 answer
  • QUESTION IS IN PICTURE, FIRST GETS BRAINLIEST
    5·2 answers
  • Can somebody answer-
    12·2 answers
  • Is it always true that (x+4) squared equals x squared plus 16?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!