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ryzh [129]
3 years ago
7

What is the length (magnitude) of vector (-4,2)

Mathematics
2 answers:
VladimirAG [237]3 years ago
5 0

Answer:

2√5

Step-by-step explanation:

UNO [17]3 years ago
3 0

Answer:

The length of it is square root of 20.  Step-by-step explanation:

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TAKE ANY UNMARKED BOWL OR GLASS AND FILL IT EXACTLY 3/5 FULL WITH WATER.
Wittaler [7]

Answer:

Take a glass, and fill it completely with water.

Now, pour that water in a marked bowl and measure how much water is in the bowl, that amount of water will be 100% of the total water that the glass can have.

Now you need to pour 3/5 of the water back in the glass, it is easier for water until the water in the bowl is exactly 2/5 of the initial amount.

You can do this as follows.

2/5 = 0.4 or 40% in percentage form.

Then if the amount of water in the marked bowl is A, the amount of water that must remain in the marked bowl is A*0.4

Then drop the water in the glass until the water in the marked bowl is the quantity that you found previously.

In this way, you can be sure that the glass is 3/5 full of water.

8 0
3 years ago
If the area of a rectangle with length (4x) is 4x2 + 12x, find the width.​
8090 [49]

Answer:

The width of a rectangle is: w = x+3

Step-by-step explanation:

Given

The length of rectangle = l = 4x

The area of rectangle = A = 4x² + 12x

To determine

The width of rectangle = w = ?

We know that the formula of the area of the rectangle is

A = wl

substitute A = 4x² + 12x and l = 4x in the equation to determine the width w of the rectangle

4x² + 12x = w×4x

w = [4x² + 12x] / [4x]

Factor 4x² + 12x:   4x(x+3)

w = [ 4x(x+3) ] /  [4x]

w = x+3

Therefore, the width of a rectangle is: w = x+3

3 0
3 years ago
—13 &lt; -x+5&lt; 8 iѕ -21 <br><br> True or false?
Andrej [43]
This is True I believe
6 0
3 years ago
Which relation is a function? <br><br><br> A.<br><br><br> B.<br><br><br> C.<br><br><br> D.
SIZIF [17.4K]
A function is relationship where a member of the Domain maps to one and only one member of the Range.

To prove a relationship is a function, a VERTICAL LINE TEST may be performed.  If a vertical line cuts the graph of a relationship only once then it is a function if not, then it is not.

View the image attached for the test.   

The answer is option A

6 0
3 years ago
A manufacturer of bottled tea runs a promotion, where consumers can win a free bottle of tea if the cap of the bottle says "Winn
I am Lyosha [343]

Answer:

A

Step-by-step explanation:

8 0
3 years ago
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