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
Inga [223]
3 years ago
9

Help ༎ຶ‿༎ຶ i dont get it​

Mathematics
2 answers:
svetoff [14.1K]3 years ago
5 0

Answer:

Step-by-step explanation:

You know the lengths of two sides and the angle between them, so use the Law of Cosines to find the third side.

x^2 = 10.5^2+ 5.4^2 -2(10.5)(5.4)cos20°

x ≈ 5.73 units

lesantik [10]3 years ago
4 0

Answer:

\underline{ \boxed{x = 5.7}}

Step-by-step explanation:

its \: simple \: and \: easy \ \: :  \: if \: you \: apply \: the \: cosine \: rule \to \\  {x}^{2}  =  {(10.5)}^{2}  + {(5.4)}^{2}  - 2(10.5)(5.4) \cos(20)  \\  {x}^{2}  =( 110.25 +29.16 ) - (113.4)( \cos(20))  \\  {x}^{2}  = 139.41 - 106.5611432 \\  {x}^{2}  = 32.8488568 \\ x =  \sqrt{32.8488568}  \\ x = 5.7313922218 \\ \boxed{x = 5.7}

You might be interested in
Solve for y in -8×+4y=24
s344n2d4d5 [400]

Factor out the common term 4

-4(2x - y) = 24

Divide both sides by -4

2x-y= - 24/4

Simplify24/4 to 6

2x -y = -6

Subtract 2x from both sides

-y = -6 - 2x

Multiply both sides by -1

y = 6 + 2x

5 0
3 years ago
Teach me how to add this problem
Arada [10]

start with the ones and every time it goes over ten take the first number and add it to the tens for example 1+8+4+8=21 take the one and put it in the one spot below. Then take the 2 and add it to the six in the tens spot so it would be Instead of 6+8+3+2 it would be 8+8+3+2 which would equal 21 then put the 1 u=in the ten spot below add the 2 to the hundreds spot making is 5+5+7=4=14 put the 4 Below and add the 1 the the thousands making it 3+4+5+1=13 put the one on the ten thousands and put the three below the whole problem would be 13,411.

7 0
4 years ago
The side of a square is (4x-2y) what is the perimeter of the square
Artyom0805 [142]

Answer:16x-8y


Step-by-step explanation:

Add all the sides (x's & y's)

6 0
3 years ago
Read 2 more answers
Use the first five terms of the trigonometric series to approximate the value of <img src="https://tex.z-dn.net/?f=sin%5Cfrac%7B
Schach [20]

Answer:b

Step-by-step explanation:

3 0
3 years ago
How much taller is a meter stick than 65 cm<br><br><br> will mark as brainiest
Lisa [10]

Answer:

it's 13 meters taller

Step-by-step explanation:

both meters are not the same which means it can't be another number

7 0
3 years ago
Other questions:
  • Priya measured the perimeter of a square desk and found 248 m. Noah measured the perimeter of the same desk and found 2468 mm. B
    5·1 answer
  • What is the answer to this question
    13·1 answer
  • Aubrey used 4/7 liters of paint for a mural in her room and 2/10 liter for a wall in her bathroom. Determine a reasonable estima
    7·1 answer
  • Two window washers start at the heights shown. One is rising, the other is descending. How long does it take for the two window
    7·1 answer
  • If zero is a natural number?
    11·2 answers
  • Two lines, A and B, are represented by the following equations:
    15·1 answer
  • What is the surface area of a cylinder with base radius 3 and height 8?
    13·2 answers
  • Someone please help me
    15·1 answer
  • Giải phương trình vi phân : <br> (4x-y)dx+(x+y)dy=0
    11·2 answers
  • Describe the transformations necessary to transform f(x) into g(x)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!