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
pickupchik [31]
2 years ago
8

18. The area of a right triangle is 30 cm². The length

Mathematics
1 answer:
Olenka [21]2 years ago
8 0

Answer:

12

Step-by-step explanation:

The area of a triangle is calculated with the following formula:

\frac{1}{2} *b*h (b: base, h: height (or legs))

We can use this formula to find the length of the other leg:

30 = \frac{1}{2} *b*h multiply both sides with 2 to get rid of fraction

60 = b*h one of the leg's length is given as 5 so

60 = 5*h divide both sides by 5

12 = h is the length of the missing leg.

You might be interested in
Hello u have to use the distributive property to answer the question
Sedbober [7]
The answer is B: 53.6x + 60.3

6.7 (8x + 9)

6.7 x 8x + 6.7 x 9
8 0
3 years ago
Read 2 more answers
Pleas help i will mark branlist
koban [17]
D because your making the shape smaller 2 times
8 0
3 years ago
Find the value of w.<br><br><br><br><br><br> w= ?
Stolb23 [73]
W=80
365 subtract by all the other angles
7 0
3 years ago
Find the indefinite integral. (Note: Solve by the simplest method—not all require integration by parts. Use C for the constant o
umka2103 [35]

Answer:

∫▒〖arctan⁡(x).1 dx=arctan⁡(x).x〗-1/2  ln⁡(1+x^2 )+C

Step-by-step explanation:

∫▒〖1st .2nd dx=1st∫▒〖2nd dx〗-∫▒〖(derivative of 1st) dx∫▒〖2nd dx〗〗〗

Let 1st=arctan⁡(x)

And 2nd=1

∫▒〖arctan⁡(x).1 dx=arctan⁡(x) ∫▒〖1 dx〗-∫▒〖(derivative of arctan(x))dx∫▒〖1 dx〗〗〗

As we know that  

derivative of arctan(x)=1/(1+x^2 )

∫▒〖1 dx〗=x

So  

∫▒〖arctan⁡(x).1 dx=arctan⁡(x).x〗-∫▒〖(1/(1+x^2 ))dx.x〗…………Eq1

Let’s solve ∫▒(1/(1+x^2 ))dx by substitution now  

Let 1+x^2=u

du=2xdx

Multiply and divide ∫▒〖(1/(1+x^2 ))dx.x〗 by 2 we get

1/2 ∫▒〖(2/(1+x^2 ))dx.x〗=1/2 ∫▒(2xdx/u)  

1/2 ∫▒(2xdx/u) =1/2 ∫▒(du/u)  

1/2 ∫▒(2xdx/u) =1/2  ln⁡(u)+C

1/2 ∫▒(2xdx/u) =1/2  ln⁡(1+x^2 )+C

Putting values in Eq1 we get

∫▒〖arctan⁡(x).1 dx=arctan⁡(x).x〗-1/2  ln⁡(1+x^2 )+C  (required soultion)

3 0
3 years ago
Read 2 more answers
John and alisha randomly met at the local movie theater. what will affect their first impression of each other?
Vesna [10]
How they dress, What movie they buy, and what snacks you buy
7 0
3 years ago
Other questions:
  • What is 80 divided by 15
    15·2 answers
  • Can someone help me with this question????
    9·1 answer
  • When x = 2, y = 50 and when x = 4, y = 100. Which direct variation equation can be used to model this function?
    10·2 answers
  • A gas station sells regular gas for $2.20 per gallon and premium gas for $3.00 a gallon. at the end of a business day 300 gallon
    12·1 answer
  • Mugs are packed 6 to a box. How many boxes are need to pack 1,524 mugs?
    7·1 answer
  • What is 1(y), when y= -5/8<br> A. -5/8<br> B. 5/8<br> C. 3/8<br> D. -8/5
    7·1 answer
  • Please help ASAP pleassssseeeee
    8·2 answers
  • Por favor ayuda cuanto es 50=t-1?
    15·2 answers
  • Jesper can run 6 miles in 45 minutes. He is thinking about running in two different races, a 9-mile race and a 15-mile race. At
    12·1 answer
  • Write the slope-intercept form of the equation that passes through the point (-1, 2) and is parallel to the line y = 3/2x + 6
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!