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
Ana hikes at a constant speed. She travels 6 miles in 2 hours. use the equation to find the distance Anna travels in 1.5 hours
sdas [7]

Anna travels 4.5 miles in 1.5 hours.


7 0
3 years ago
After one week of meals, the bottle of ketchup contains 25% of its original amount. How many ounces are in the bottle after one
Maru [420]

Answer:

25/7 I think not sure though

6 0
3 years ago
6x - 5y = 15, x=y+3 what does x and y equal
Natasha_Volkova [10]

Answer:

Step-by-step explanation:

6x - 5y = 15....... (1)

x=y+3..........(2)

Putting (2) in (1)

6(y + 3) - 5y = 15

6y + 18 - 5y = 15

6y - 5y = 15 - 18

y = -3

And x = y + 3

x = -3 + 3

x = 0

3 0
3 years ago
Jeannie ate 1/4 of an apple.kelly ate 2/4 of the apple.how much did they eat together
VLD [36.1K]
1/4 + 2/4= 3/4. They together ate 3/4 of the apple. Hope this helped :)
5 0
3 years ago
Read 2 more answers
Two skaters are practicing at the same time on the same rink. A coordinate grid is superimposed on the ice. One skater follows t
myrzilka [38]

Answer:

The skaters will collide at the points;

(2,28) and (4,24)

Step-by-step explanation:

The points they might collide will be the points when both y are equal;

-2x + 32 = -2x^2 + 18x

2x^2 -18x -2x + 32 = 0

2x^2 -20x + 32 = 0

2x^2 - 16x - 4x + 32 = 0

2x(x -8) -4( x -8) = 0

(2x -4)(x -8) = 0

2x = 4 or x = 8

x = 4/2 or x = 8

hence; x = 2 or 8

Now let’s get the y value

at x = 2, just substitute into any of the 2

y = -2x + 32

y = -2(2) + 32

y = -4 + 32 = 28

at x = 4

y = -2(4) + 32

y = -8 + 32

y = 24

The points that they will collide are;

(2,28) and (4,24)

4 0
3 years ago
Other questions:
  • Erin stacks some photo albums in a storage crate that weighs 5 pounds each photo album weighs one and three eights pounds the to
    14·1 answer
  • I need help with this question please :)
    7·1 answer
  • A line segment has endpoints at (–4, –6) and (–6, 4). Which reflection will produce an image with endpoints at (4, –6) and (6, 4
    6·2 answers
  • Can someone help with 31?!!!
    15·1 answer
  • ANSWER FAST PLZ 25POINTS!!!!!!!!!!!
    8·2 answers
  • Poor health is caused by not exercising
    11·1 answer
  • A university is applying classification methods in order to identify alumni who may be interested in donating money. The univers
    14·1 answer
  • PLEASE HELP THIS IS MY LAST QUESTION!
    8·2 answers
  • Is the answer 24 or 80 please I don't know explain with steps nad explanations pls
    7·2 answers
  • Erin has developed a new lotion that will help children with sensitive skin. she invests $15,225 in equipment to manufacture and
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!