3 years ago

If u=<2,2> then find u•u and determine whether it is a vector or a scalar

1 answer:

3 0

If ~v = hv1, v2, v3i and ~w = hw1, w2, w3i are vectors and c is a scalar, then (a) c~v = hcv1, cv2, cv3i (b) ~v + ~w = hv1 + w1, v2 + w2, v3 + w3i (c) ~v − ~w = hv1 − w1, v2 − w2, v3 − w3i.

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Can someone give me the answers to this or how to find the answers to it?

faltersainse [42]

the discriminant formula is b^2-4ac

so plug the values from each equation into the formula and solve, the result is the value of the discriminant

if the number is negative, there are no real roots/x-int

if it is 0 there is one real root/x-intercepts

if it is positive it has 2 real roots/x-int

and to find the actual solutions you have to plug the values into the quadratic formula

6 0

3 years ago

On the grid draw the graph of y = 3x + 2 for values of x + 2 for values of x from -2 to 2

sladkih [1.3K]

Answer:

The required graph is shown below.

Step-by-step explanation:

Consider the provided equation $y=3x+2$

We need to draw the graph of the equation.

Put x=0 in the above equation.

$y=3(0)+2$

$y=2$

The coordinate is (0,2).

Put y=0 in the given equation.

$0=3x+2$

$-2=3x$

$x=\frac{-2}{3}$

The coordinate is ( $\frac{-2}{3}$ ,0).

Now draw the graph by using the above coordinates.

The required graph is shown below.

6 0

2 years ago

Jasmine had 20 dollars to spend on 3 gifts. She spent 9 1 4 dollars on gift A and 4 4 5 dollars on gift B. How much money did sh

svlad2 [7]

Answer:

5 2/6

Step-by-step explanation:

you have to mutiply

3 0

2 years ago

What is 5x÷68y×45-12x <br><br><br><br>soooo does anybody wanna talk im board

Phoenix [80]

Answer:

sure (✿^‿^)

Step-by-step explanation:

｡◕‿◕｡

Hi! how are you?

4 0

2 years ago

A rectangle has length 72 cm and it’s width 56 cm. The other rectangle has the same area as this one, but its width is 21 cm. Fi

Kryger [21]

A = l*w

A = 72* 56

A= 4032

4032 = L*21

4032/21 =L

L =192

5 0

2 years ago