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
tia_tia [17]
3 years ago
5

The area covered by a spotlight on the side of a house is 954 square feet, as seen in the diagram below.

Mathematics
1 answer:
miss Akunina [59]3 years ago
4 0

Answer:

27.25\ ft^2

Step-by-step explanation:

<u><em>The picture of the question in the attached figure</em></u>

we know that

The  area on the side of the house that is NOT covered by the light is equal to the area of semicircle minus the area covered by a spotlight on the side of a house

Find the area of the semicircle

The area of a semicircle is equal to

A=\frac{1}{2}\pi r^{2}

we have

r=25\ ft\\\pi=3.14

substitute

A=\frac{1}{2}(3.14)(25)^{2}

A=981.25\ ft^2

Find the difference

A=981.25-954=27.25\ ft^2

You might be interested in
Please Help...Anyone? I am revising for a test tomorrow, so please explain how you get the answer, too.. The ratios of the ages
Ipatiy [6.2K]

Answer:

32 years old

Step-by-step explanation:

Please see attached picture for full solution.

Let Sunil's present age be 4x and his wife's present age be 3x.

8 0
3 years ago
17 - (9 + 10) = (17 - 9) + 10 A.True B.False
CaHeK987 [17]
B. false pemdas kid get with it
7 0
3 years ago
Read 2 more answers
points P and Q lie 240 m apart in line with and on opposite sides of a communications tower. the angles of elevation to the top
Leona [35]

Answer:

The height of the tower is 130.5m

Step-by-step explanation:

In the question, we are given the following values:

The angles of elevation to the top of the tower from P = 50°

The angles of elevation to the top of the tower from Q = 45°

The angles of elevation to the top of the tower from P = 50°

Hence,cot P = 1/ tan(50°)

The angles of elevation to the top of the tower from Q = 45°

Hence, tan 45° = 1

In the question,we are told Points P and Q lie 240 m apart in line with and on opposite sides of a communications tower.

Therefore,

PQ = height of the tower( tan Q + 1/tan P)

240m = height of the tower( tan 45° + 1/ tan 50°)

240m = h(1 + 1/tan 50°)

h = (240 m)/(1 + 1/tan (50°))

h = 130.49863962 meters

Therefore, the height of the tower to the nearest tenth of a meter is 130.5 meters(m)

5 0
3 years ago
Last one on test Parallelogram ABCD is a rectangle.
marusya05 [52]
Answer: 10

2AX=BD
2(3y-5)=5y
6y-10=5y
add 10 to each side 6y+10-10=5y+10
6y=5y+10
subtract 5y from each side 6y-5y=5y-5y+10
6y-5y=y
y=10



3 0
3 years ago
Read 2 more answers
The vertex of this parabola is at (3,5). When the Y value is 6X value is negative one what is the coefficient of the squared ter
iren2701 [21]

We know that equation of a parabola is given by :-

y = a(x-h)² + k

Where (h,k) is the vertex of parabola and (x,y) is any point on its curve.

Given that vertex of parabola is (3,5) and one point (x,y) is (6,-1).

We can plug the given information in the equation of parabola and solve it for value of 'a' :-

-1 = a(6 - 3)² + 5

-1 = a(3)² + 5

-1 = 9a + 5

9a = -1 -5 = -6

a = \frac{-6}{9} = \frac{-2}{3}

a = \frac{-2}{3} is the final answer.

7 0
3 years ago
Other questions:
  • PLEASE HELP ASAP ILL APPRECIATE IT SOOO MUCH
    9·1 answer
  • PLEASE ANSWER FAST!!!! BRAINLIEST ANSWER WILL BE GIVEN
    8·1 answer
  • 8.06
    7·1 answer
  • Which exponential function has a growth factor of 1/2?
    7·2 answers
  • What is the measure of angle F in degrees and please explain step by step ​
    12·1 answer
  • Which system represents the graph?
    11·2 answers
  • Which of the following represents fifth root of x to the fourth power in exponential form? 4x5 5x4 x to the five fourths power x
    8·2 answers
  • Corsica fills a bucket with water at a constant rate. The equation below represents a proportional relationship between the ounc
    13·2 answers
  • Is x^2 a quadratic expression?
    8·2 answers
  • Someone pls help solve this
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!