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Triss [41]
3 years ago
13

The Area of the Rectangle

Mathematics
1 answer:
pshichka [43]3 years ago
3 0

Answer:

450 I believe is correct

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Find the lateral area of the right prism with height 0.3 dm, if the base of the prism is Isosceles trapezoid with bases of 3 cm
KIM [24]
The lateral area of that prism consists of 4 rectangles.
h = 0.3 dm = 30 cm.
The lateral area:
A = ( a + b + c + c ) · h
A = (  5 + 3  + 4 + 4 ) · 30
A = 16 · 30 = 480 cm²
Answer: The lateral area of the prism is 480 cm².
8 0
4 years ago
Convert r =-72/12+6 sin theta to Cartesian form.
PolarNik [594]
For converting polar to cartesian form we know
r =  \sqrt{x^2 + y^2}
x = rcos \theta , y = rsin \theta

Given equation is

r =  \frac{-72}{12} + 6sin \theta

We can simplify it as
r = -6 + 6sin \theta

Now we can write it as
r^2 = -6r + 6rsin \theta

Now we can use
r^2 = x^ 2+ y^2 , rsin \theta = y , r =   \sqrt{x^2 + y^2}
So equation we can write it as
x^2 + y^2 = -6 \sqrt{x^2 + y^2} + 6y
x^2 + y^2 - 6y = -6 \sqrt{x^2 + y^2}
On squaring both sides
(x^2 + y^2 - 6y)^2 = (-6 \sqrt{x^2 + y^2})^2
x^4 + y^4 + 36y^2 +2x^2y^2 -12y^3 -12x^2y = 36(x^2 + y^2)
x^4 + y^4 +36y^2 + 2x^2y^2 -12y^3 -12x^2y = 36x^2 + 36y^2
x^4 + y^4 + 36y^2 +2x^2y^2 -12y^3-12x^2y - 36x^2 - 36y^2 = 0
x^4 + y^4 -12y^3 + 2x^2y^2 - 12x^2y - 36x^2 = 0
6 0
4 years ago
Read 2 more answers
Suppose that u⃗ =⟨−6,2⟩ and v⃗ =⟨−2,−6⟩. What is the angle between u⃗ and v⃗ , rounded to the nearest degree?
wlad13 [49]

Answer:

Ya'll ask the most complicated questions that never get answered just gooogle it dude

Step-by-step explanation:

4 0
3 years ago
What is 3 times 3 please answer im so confused
Makovka662 [10]

Answer:

9

Step-by-step explanation:

3+3+3=9

there you go :)

6 0
3 years ago
Michael had 3 times as many mangoes as Junior. After eating 8 mangoes. Michael had
jolli1 [7]

Answer:

Michael: 24

Junior: 8

Step-by-step explanation:

8 is a multiple of 24, meaning if you ate 1/3 of 24 you get 16, which is doubled 8.

4 0
3 years ago
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