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Travka [436]
3 years ago
14

Which of the following points are in the second quadrant of the xy-plane? Check all that apply. O A. (-4,2) O B. (-7, 6) O C. (4

,8) O D. (2,2) O 6 E. (6,-2) O F. (-2,-8)​
Mathematics
1 answer:
lubasha [3.4K]3 years ago
4 0

Answer:

a and b bc that are in the negative-positive quad

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The equation 6.32=k2 shows that buying 2 bags of apples would cost 6.32. how much is it for one bag
seropon [69]

Answer:

3.16

Step-by-step explanation:

You would divide the 6.32 by 2 to get the amount for one bag

5 0
3 years ago
(Will give Brainliest/5 Stars if correct answer)
tensa zangetsu [6.8K]
Answer: Choice D) 
The angle between the two vectors is approximately 71.6 degrees

----------------------------------------------
----------------------------------------------

Work Shown: 

Each time I write the word "dot" I mean "dot product". 

|u| = length of vector u
|u| = sqrt(u dot u)
|u| = sqrt(<8,4> dot <8,4>)
|u| = sqrt(8*8 + 4*4)
|u| = sqrt(64 + 16)
|u| = sqrt(80)
|u| = sqrt(16*5)
|u| = sqrt(16)*sqrt(5)
|u| = 4*sqrt(5)

-----------------------

|v| = length of vector v
|v| = sqrt(v dot v)
|v| = sqrt(<9,-9> dot <9,-9>)
|v| = sqrt(9*9 + (-9)*(-9))
|v| = sqrt(81+81)
|v| = sqrt(2*81)
|v| = sqrt(2)*sqrt(81)
|v| = sqrt(2)*9
|v| = 9*sqrt(2)

-----------------------

u dot v = <8,4> dot <9,-9>
u dot v = 8*9 + 4*(-9)
u dot v = 72-36
u dot v = 36

-----------------------

cos(theta) = (u dot v)/(|u|*|v|)
cos(theta) = (36)/(4*sqrt(5)*9*sqrt(2))
cos(theta) = (36)/(36*sqrt(10))
cos(theta) = 1/(sqrt(10))
cos(theta) = sqrt(10)/10
theta = arccos(sqrt(10)/10)
theta = 71.56505
which rounds to 71.6 when rounding to one decimal place (nearest tenth)

That's why the approximate answer is roughly 71.6 degrees

7 0
3 years ago
What is the difference between value and place value?
worty [1.4K]
Place value is where the number is placed and value is what that place is called
6 0
3 years ago
Use the Pythagorean theorem to find the missing side length
Stella [2.4K]

#1 is 4

#2 is 9

#3 is 16

#4 can't read the numbers

8 0
2 years ago
Read 2 more answers
Jasmine found a wooden jewelry box shaped like a right rectangular prism. What is the volume of the jewelry box?
Rus_ich [418]

Answer:

The volume of the jewelry box will be given by,

\text{Volume}=\text{l}\times \text{w}\times\text{h}

Step-by-step explanation:

It is provided that, Jasmine found a wooden jewelry box shaped like a right rectangular prism.

Consider the diagram below for the shape of a right rectangular prism.

The volume of a right rectangular prism is given by the formula:

\text{Volume}=\text{l}\times \text{w}\times\text{h}

Here,

l = length of the rectangle

w = width of the rectangle

h = height of the rectangular prism

Thus, the volume of the jewelry box will be given by,

\text{Volume}=\text{l}\times \text{w}\times\text{h}

8 0
3 years ago
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