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
Bumek [7]
3 years ago
8

PLEASE HELP ME! !!!!!!

Mathematics
1 answer:
Makovka662 [10]3 years ago
8 0

Answer:The height of the building which caste a shadow 20.5 m in length is 17.5 m.          

Step-by-step explanation:

Given : At a particular time of a day, a 7 high flagstaff castes a shadow which is 8.2 m long.

To find : What is the height of the building which castes a shadow 20.5 meters in length at the same moment?

Solution :

A 7 high flagstaff castes a shadow which is 8.2 m long.

i.e. Shadow of length 8.2 m = 7 m

The shadow of length 1 m =  m

The shadow of length 20.5 m =  m

The shadow of length 20.5 m = 17.5 m

Therefore, The height of the building which caste a shadow 20.5 m in length is 17.5 m.

You might be interested in
how to solve Davis bought a second hand cycle for $500 he spent $80 in repairs and $175 in repainting he then sold it to John fo
Ivanshal [37]
So you would need to add:

500$ + 80$ + 175$ = 755$

Since John paid 900$ then you would subtract how much he is buying it for from how much Davis spent to fix it

900$ - 755$ = 145$ (on profit Davis earned)
4 0
3 years ago
Reiko works at Kroger store near his house. Every day he earns a flat rate of $10 plus $5 per hour. Write a function rule. How m
Troyanec [42]
Reilly would earn $75
3 0
3 years ago
Read 2 more answers
a 1 ​ =− 3 1 ​ a, start subscript, 1, end subscript, equals, minus, start fraction, 1, divided by, 3, end fraction a i = a i − 1
MrRa [10]

Answer:

S_{75}=-506.888989761$ X 10^{32}

Step-by-step explanation:

Given the sequence

a_1=-\dfrac{1}{3}\\ a_i=a_{i-1}\cdot (-3)

a_2=a_{2-1}\cdot (-3)=a_1 \cdot (-3) = -\dfrac{1}{3}\cdot (-3)=1\\a_3=a_{3-1}\cdot (-3)=a_2 \cdot (-3) = 1 \cdot (-3)=-3\\a_4=a_{4-1}\cdot (-3)=a_3 \cdot (-3) = -3 \cdot (-3)=9\\

Therefore the sequence is:

 -\dfrac{1}{3}, 1, -3, 9, ...

This is a geometric sequence where the:

First Term, a_1=-\dfrac{1}{3}

Common ratio, r =-3

We want to determine the sum of the first 75 terms.

For a geometric sequence, the sum:

S_n=\dfrac{a_1(1-r^n)}{1-r} \\

Therefore:

S_{75}=\dfrac{-\dfrac{1}{3}(1-(-3)^{75})}{1-(-3)} \\\\=\dfrac{-(1-(-3)^{75})}{4*3}\\\\S_{75}=\dfrac{(-3)^{75}-1}{12}\\\\S_{75}=-506.888989761$ X 10^{32}

5 0
3 years ago
Does anyone know the answer. The picture is below
nignag [31]
I say c is it I think
7 0
2 years ago
Read 2 more answers
The prime factorization of 48 is ________.
NemiM [27]
2 to the 4th power times 3
8 0
3 years ago
Read 2 more answers
Other questions:
  • All of the following are equivalent, except _____.
    11·2 answers
  • Simplify. -3x = 50<br> a. -150<br> b. 150<br> c. 16 2/3<br> d. -16 2/3
    10·1 answer
  • CAN somebody plz plz help me with raios
    12·1 answer
  • I need the answer asap!!
    6·1 answer
  • Evaluate 12 divided by (-3)(2) + 5. a) -13 b) 3 c) -3
    14·1 answer
  • The function y= -3(x-2)^2 +6 shows the daily profit in hundreds of dolars of a hot dog stand where x is the price of a hot dog i
    10·1 answer
  • 54=/3<br><br> r= unknown <br><br> WRONG ANSWERS REPORTED<br> RIGHT ANSWERS ARE BRAINLIEST
    6·1 answer
  • Which is the correct graph and solution for the following system of equations y=2x+3 y=-x-6
    7·2 answers
  • Andre and Noah started tracking their savings at the same time. Andre started with $15 and deposits $5 per week. Noah started wi
    13·2 answers
  • Find the 52nd term of the given arithmetic sequence-30, -38, -46, -54...
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!