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olya-2409 [2.1K]
2 years ago
8

PLZZ HELP ME WORTH 35 POINTS

Mathematics
2 answers:
postnew [5]2 years ago
5 0

Answer: what grade is this math

Step-by-step explanation:

Vitek1552 [10]2 years ago
3 0

Answer:

3.2

Step-by-step explanation:

8/100×40=3.2. This is how to find the sales tax.

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If u, v, and w are nonzero vectors in r 2 , is w a linear combination of u and v?
Tju [1.3M]
Not necessarily. \mathbf u and \mathbf v may be linearly dependent, so that their span forms a subspace of \mathbb R^2 that does not contain every vector in \mathbb R^2.

For example, we could have \mathbf u=(0,1) and \mathbf v=(0,-1). Any vector \mathbf w of the form (r,0), where r\neq0, is impossible to obtain as a linear combination of these \mathbf u and \mathbf v, since

c_1\mathbf u+c_2\mathbf v=(0,c_1)+(0,-c_2)=(0,c_1-c_2)\neq(r,0)

unless r=0 and c_1=c_2.
8 0
3 years ago
PLEASE HELP!
Kitty [74]
You can reword the two equations as:

-5x-y=15 (Divide original value by 3)
-2x+6y=6

Then use elimination to find x:

-30x-6y=90 (Multiply by 6 to get y values to be same to cancel out)
-2x+6y=6

You're left with:

-32x=96. Which can then be solved to find x which is -3.

Then plug back in 

-2x+6y=6

Now to: -2(-3)+6y=6.

Which reduces to 6+6y=6. So y=0.



To graph them, just reword the equations (yes once again) so that y is in front.

y=-5x-15 and y=(1/3)x+1






8 0
3 years ago
WILL MARK BRAINLIEST, I NEED IT ASAP!<br> Find N(A)<br> A= {letters in the word "Strawberry}
Luden [163]

Answer:

i think n(a) =10

Step-by-step explanation:

hope this is helpful

4 0
2 years ago
Determine whether the relation below is also a function.
Bess [88]

Answer:

B. Not a function

Step-by-step explanation:

3 0
2 years ago
which property does the example shows. 23.1+42.6=42.6+23.1. A. associative property of addition or B.Distributive property
konstantin123 [22]
A) distributive is where it distributes a number through a set of parenthesis.
4 0
3 years ago
Read 2 more answers
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