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
AlladinOne [14]
3 years ago
9

PLEASE HELP ME I REALLY NEED HELP

Mathematics
1 answer:
xz_007 [3.2K]3 years ago
6 0

Answer:

Step-by-step explanation:

Rainy , 1st , let me mention that this type of problem isn't used for real world anything. The reason I mention that is b/c most times how much accuracy is needed is determined by the real world use of the math.   That said,  geometry problems are good for honing your math skills,  which will be used for real world problems.  so when you ask someone else to do the "honing" for you,  you are missing out.   :/  so i'll give you how to get the answer but not the answer

we are supposed to find the area.   There are 3 shapes in the problem.   2 triangles and one rectangle.

we need to find the height of the triangles which is also the side of the rectangle.

to find the height of the triangles take the left one and use SOH CAH TOA to remember how trig functions fit. Nest use the appropriate trig function to solve the height. I'll set it up for you , you do that math

sin(45) = height /  8*\sqrt{2}

8*\sqrt{2}*sin(45) = height  

next use the trig functions to find the base

cos(45)  = base /   8*\sqrt{2}

8*\sqrt{2}*cos(45)  = base

( I can do both of these in my head and you can too if you remember your trig functions? [also b/c it's a 45° triangle the base and the height are the same)

once you have the height use that with the area of a triangle funct.

1/2*base*height = area1

that gets you the area of the triangle on the left.  next figure out the rectangle

height * 12 = area2  ( where height is the number you found above)

then solve for the last triangle on the right, the height is the same as the triangle on the left so you just need to find the base

Tan(30) =  height / base

since you already know the height put that number in

base = height / Tan(30)

now you have the height and base of the triangle on the left

1/2*base*height = area3

add the 3 areas up  and you have solved it  :)

You might be interested in
Help pls need answer asap
Varvara68 [4.7K]

Answer:

Carl traveled 281.25 km by bus and 1,618.75 km by plane.

Step-by-step explanation: v1 = 60 km/h average speed by bus to Toronto

v2 = 700 km/h average speed by plane to Winnipeg

d = 1,900 km the total distance traveled

t = 7 h total traveling time

t1 = the time of the travel by bug

t2 = the time of the travel by plane

t = t1 + t2 the total time

d1 = the distance traveled by bus

d2 = the distance traveled by plane

d = d1 + d2 the total distance

Since average speed = distance/time we have time = distance/avg.speed

t1 = d1/v1 that is t1 = d1/60

t2 = d2/v2 that is t2 = d2/700

Plug the above values into t1 + t2 = t.

We have the following system of equations:

d1/60 + d2/700 = 7

d1 + d2 = 1900

.......

Click here to see the step by step solution for 'd1' and 'd2'

.......

d1 = 281.25 km

d2 = 1,618.75 km

Carl traveled 281.25 km by bus and 1,618.75 km by plane.


7 0
2 years ago
three brothers and a sister shared a sum of money equally among themselves. if the brothers alone had shared the money, then the
Virty [35]

Answer:

1. t=240

2.t/3=(t/4)+20

Step-by-step explanation:

4 0
2 years ago
5x + 7x + 2x + 8 -2 please helppp
Murljashka [212]

Answer:

= 14X + 6

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Select all the equations for which (-6,-1) is a solution. *
ella [17]
1 and 4 hope this helps!
8 0
3 years ago
Write 5numbers 8digit long
Virty [35]
12345678
23456789
34567890
45678901
56789012
6 0
3 years ago
Other questions:
  • What is the x to y ratio 14x=25y fractions as answers
    15·1 answer
  • How many times does 12 go into 80 the times you have done 12 into 80 is when you count to 12 or 80 or do 80 or 12 jumping jacts
    14·1 answer
  • Need help please help
    5·1 answer
  • A circle has a diameter of 20 mm what is it’s circumference? Use 3.14 for pi and do not round your answer
    8·2 answers
  • I don’t know understand it or know how to solve it.
    14·1 answer
  • Which negative is bigger negative 80 or negative 64.8
    11·2 answers
  • 9
    9·1 answer
  • Round 39.472 to the nearest tenth​
    6·1 answer
  • Simplify x X x^5 divided by x^2 X x
    7·2 answers
  • What's the answer to these simple algebra questions.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!