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Lynna [10]
2 years ago
15

THERE ARE 4 QUESTIONS BELOW!

Mathematics
1 answer:
Whitepunk [10]2 years ago
5 0
1. $240 in commission. If you add the weekly salary, it would be $635.

2. 35%

3. $8.30

4. $57.96

5. Sales tax on an item is a percent of increase. A discount on an item is a percent decrease. A tip on a bill is a percent increase.
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Ps help it’s in for 10 mins
eimsori [14]

The correct options for the linear combinations of the vectors are given by:

A, B, C, D, E and F.

<h3>What is a span between two vectors?</h3>

The span between two vectors is the set that contains all linear combinations between these two vectors.

Supposing we have two vectors u1 and u2, as is the case in this problem, the infinitely many linear combinations have the following format:

k1u1 + k2u2

In which k1 and k2 are real numbers.

With k1 = 4 and k2 = -7, we get that option A is correct.

For option B, the vector 0 will always be a part of the span, as it can be formed with constants 0, hence it is correct.

The dimension of the span is of 3, as the vectors have 3 elements, hence option C is correct.

The underlying vectors will always also be part of the span, as they can be formed with their constant 1 and the others at 0, hence options D and F are correct.

The size of the span of any vectors is of infinity, hence option E is correct while option G is not.

More can be learned about linear combinations at brainly.com/question/15885826

#SPJ1

3 0
1 year ago
Kevin is 3 times as old as Daniel. 4 years ago, Kevin was 5 times as old as Daniel. How old is kevin now?
puteri [66]
K = Kevin's age
D = Daniel's age

K = 3D

K - 4 = 5(D - 4)

Plug in 3D for the K values in the second equation.

3D - 4 = 5(D - 4)   Use the Distributive Property
3D - 4 = 5D - 20   Add 4 to both sides
     3D = 5D - 16     Subtract 5D from both sides
    -2D = -16            Divide both sides by -2
       D = 8 
 Now, plug that D value into the original equation.

K = 3D    Plug in the D value
K = 3(8)   Multiply
K = 24

Finally, you can double check your math.

4 years ago, Daniel would've been 4 and Kevin would be 20, so Kevin would've been 5 times as old as Daniel.  And 8 x 3 = 24.

So, Kevin is 24.
3 0
3 years ago
Read 2 more answers
G(x)=x^3-3x^2-4x+12
Ne4ueva [31]
X- intercept= (3, 0), (-2, 0), (2,0)
y= (0, 12)

5. g(x)=(x-3)(x+2)(x-2)


5 0
3 years ago
 PLEASE HELP 15 PTS  <br>HELP ME WITH TRUE OR FALSE MATH 
Sever21 [200]
  • 1st on the top right hand corner is True
  • 2nd on the second row to the right is True
  • 3rd on the first row, second column is False
  • 4th on the second column second row is False
  • 5th on the third column, first row is True
  • 6th on the third column, second row is True
8 0
3 years ago
Amber and her friend Nathan are
Gnesinka [82]

Answer:

{(12-4) + (15-8)}x  = 65

Step-by-step explanation:

The amount Amber earns per week

12-4

The amount Nathan earns per week

15 -8

The total amount per week they earn together

(12-4) + (15-8)

Multiply by x weeks

{(12-4) + (15-8)}x

Set this equal to 65 to be the amount they need to equal 65 dollars

{(12-4) + (15-8)}x  = 65

5 0
3 years ago
Read 2 more answers
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