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labwork [276]
1 year ago
7

Geometry help please

Mathematics
1 answer:
Romashka [77]1 year ago
7 0

Answer:

Step-by-step explanation:

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Can anyone please help with either of these problems?? i need it done asap! thank you in advance!
storchak [24]

Answer: No problem

Step-by-step explanation:

7 0
2 years ago
The magnitude and direction of two vectors are shown in the diagram. What is the magnitude of their sum? ​
VLD [36.1K]

Separate the vectors into their <em>x</em>- and <em>y</em>-components. Let <em>u</em> be the vector on the right and <em>v</em> the vector on the left, so that

<em>u</em> = 4 cos(45°) <em>x</em> + 4 sin(45°) <em>y</em>

<em>v</em> = 2 cos(135°) <em>x</em> + 2 sin(135°) <em>y</em>

where <em>x</em> and <em>y</em> denote the unit vectors in the <em>x</em> and <em>y</em> directions.

Then the sum is

<em>u</em> + <em>v</em> = (4 cos(45°) + 2 cos(135°)) <em>x</em> + (4 sin(45°) + 2 sin(135°)) <em>y</em>

and its magnitude is

||<em>u</em> + <em>v</em>|| = √((4 cos(45°) + 2 cos(135°))² + (4 sin(45°) + 2 sin(135°))²)

… = √(16 cos²(45°) + 16 cos(45°) cos(135°) + 4 cos²(135°) + 16 sin²(45°) + 16 sin(45°) sin(135°) + 4 sin²(135°))

… = √(16 (cos²(45°) + sin²(45°)) + 16 (cos(45°) cos(135°) + sin(45°) sin(135°)) + 4 (cos²(135°) + sin²(135°)))

… = √(16 + 16 cos(135° - 45°) + 4)

… = √(20 + 16 cos(90°))

… = √20 = 2√5

5 0
3 years ago
Read 2 more answers
3+4{2[4(x-2)+5]-1}&gt;87
Ahat [919]

Answer:

I'm terrible at math

Step-by-step explanation:

I hope that that helps but I don't think

4 0
2 years ago
OMG I'M LITERALLY CRYING PLS HELP!!!!
zepelin [54]
The answer would be $25.22 the way to do this would be to divide 7.76 by 4 and then you would multiply that answer by 13 so it would be the 4th answer
7 0
3 years ago
Read 2 more answers
Mila and Ben use red and orange beads to make bracelets with 60 beads each.
aleksandr82 [10.1K]

Answer:

Mila

Step-by-step explanation:

3+2=5

60/5=12

12*3=36

Mila uses 36 orange beads

7+5=12

60/12=5

7*5=35

Ben uses 35 orange beads

Mila uses more beads

hope this helps you on your homework :D

5 0
2 years ago
Read 2 more answers
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