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horrorfan [7]
2 years ago
12

vector v has a horizontal vector component with magnitude 19 and a vertical vector component with magnitude 35. what is the acut

e angle theta formed by v and positive x-axis?
Mathematics
1 answer:
vladimir2022 [97]2 years ago
4 0

9514 1404 393

Answer:

  61.5°

Step-by-step explanation:

The tangent relation is useful here. The angle is opposite the vertical side and adjacent to the horizontal side of the right triangle.

  Tan = Opposite/Adjacent

  tan(α) = 35/19

  α = arctan(35/19) ≈ 61.5°

The angle made by <em>v</em> and the positive x-axis is 61.5°.

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How do you factor quadratics by grouping
Kaylis [27]
Here's an example Its also call the 'ac' method:-

factor  2x^2 - 13x - 15

Multiply first coefficient by last number  which is 2*-15 = -30

Now we need 2 factors of -30 which will when added give - 13:-

-15 and 2  looks good. So we  can write:-

2x^2 - 13 x - 15

= 2x^2 + 2x - 15x - 15 

factor by grouping first 2 and last 2 terms , we get:-

= 2x(x + 1) - 15(x + 1)   

the x+1 is common so we have:-

(2x - 15)(x + 1)   Answer

Hope this helps.


5 0
3 years ago
A teachers desk is 5.5 meters long a students desk is 220 centimeters long what is the difference in the length in centimeters b
Mama L [17]

so if 5.5 is in meter let change it to cm because the question want us to give the answer in cm.

1cm = 0.01meter

to \: turn \: meters \: into \: \\  cm \: we \: have \: to \: multiply \:  by \: 100

now we multiply 5.5 times 100 which is equal to 550.

next we subtract 550 - 220= 330.

finally, the difference between a teacher and student is 330cm .meaning the teacher's desk is 330 cm longer or taller than the student.

7 0
3 years ago
What is the midpoint of A (-2,-4) and (4,-7)
Sloan [31]
The answer/midpoint is 1,5.5
5 0
2 years ago
The grocery sells beans in bulk. The grocer's sign above the beans says, "5 pounds for $4."
solong [7]

Answer:

A). Alberto is the only right one because .80 * 5 = 4$

B). Claude will need 1.60$ because .80 * 2 = 1.60$

C). Dora can buy 12.5 pounds because 10$ / .80 is 12.5

D). Using Alberto's because he was the one who was correct

Step-by-step explanation:

please leave brainiest 5 star and thx i really appreciate it

4 0
3 years ago
20. Firewood is often sold by the cord. A cord of wood is a bundle measuring 4 feet by 4 feet by 8 feet. What's the volume of a
Fittoniya [83]
A cord is a rectangular prism. The volume formula for a rectangular prism is A = l*w*h. So, in this case, A = 4*4*8 = 128 ft^3. So your answer is D.
8 0
2 years ago
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