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Reika [66]
3 years ago
13

Find the angle between vector u=i+sqrt 7 j and vector v=-i-4j to the nearest degree.

Mathematics
2 answers:
maksim [4K]3 years ago
6 0

Answer: I just took the test and got 100%

1. C, The vector will not change direction but will increase in magnitude.

2. C, 56 ft lbs

3. C, (-2,-3)

4. A, u = -4 sqrt 41/41 i - 5 sqrt 41/41 j

5. A, 56

6. C, 11.4 ft/sec

7. Do not copy my exact answer please (: They are equal. You know because if you take the points of each segment and subtract them, you will get the same points for both segments.

8a. A, (-10,-16)

8b. D, 2 sqrt 89

9a. C, (-14,-21)

9b. B, 7 sqrt 13

10a. C, (-18,-26)

10b. B, 10 sqrt 10

11. B, 5,144 degrees

12. A, 173 degrees

13. C, (1/6, -1/5)

14. D, 163 mph

15. C, 10j

16. D, 2 sqrt 3

17. A, 98.1 degrees

18. Do not copy my exact answer please (: The angle between the two vectors is 26.75 degrees.

Feel free to mark as brainliest (:

kenny6666 [7]3 years ago
4 0

Answer:4

Step-by-step explanation:

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Answer: ~27.5

Step-by-step explanation:

I don't know about all the geometry terms, but since a line is 180°, and SE makes 1 right angle (90°), the other side is also 90° (180-90=90).

This means you have a right triangle with sides 15 and 23 and unknown hypotenuse AS.

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3 years ago
During a sale, a shop offered a discount of 10% on the marked prices of all the items. What
Snowcat [4.5K]

Answer:

₹2835

Step-by-step explanation:

Working out discount of 10% of jeans at ₹1450:

10% of 1450 = 1450/10 = ₹145

the price would now be ₹1450 - ₹145 = ₹1305

Working out discount of 10% of a shirt at ₹850:

10% of 850 = 850/10 = ₹85

the price would now be ₹850 - ₹85 = ₹765

so the price of two shirts = ₹765 × 2 = ₹1530

the total the customer would have to pay:

₹1305 + ₹1530 = ₹2835

8 0
2 years ago
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Two non-simultaneous events have an equal likelihood of occurring (50%). If the events are independent of each other, what is th
BARSIC [14]
There are 4 possibilities:

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2) event A happens, not event B
3) event B happens, not event A
4) both events happen

seeing as there is a 50% chance of either event happening, I would assume that all 4 possibilities have an equal chance of happening

so if there are 4 events, then each one is 25% likely.

So the probability if them both occurring is 25%

I think
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Step-by-step explanation:

by solving for x.    simplifying both sides of the equation, then isolating the variable.

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Step-by-step explanation:

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