All categories

2 years ago

A, b, and c are all vectors that have the same direction.

Mathematics

1 answer:

kifflom [539]2 years ago

6 0

Answer:

14 = c

Step-by-step explanation:

it is just like u said;

a + b = c

6 + 8 = c = 14

(it could also be 8-6 = c = 2)

You might be interested in

What is 3x+2y=-13 3x+4y=1

Zepler [3.9K]

Answer:

The values are

x = -25/9 = -2 7/9

y = 7/3 = 2 1/3

Step-by-step explanation:

3x + 2y = -13 --------eqn 1

3x + 4y = 1-------------eqn2

Using eqn 2 to get the value of y

3x + 4y = 1

4y = 1 - 3x

Dividing both sides by 4,to get y

4y/4 =( 1 -3x) / 4

y = (1 - 3x) / 4

Since we've gotten the value for y, substitute the value into eqn 1

3x + 2y = -13

3x + 2(3x - 1)/4 = -13

Opening the bracket

3x + (6x - 2)/4 = -13

LCM = 4

(12x + 6x - 2) / 4 = -13

18x - 2 / 4 = -13

Then we cross multiply

18x - 2 = -13 * 4

18x - 2 = - 52

18x = -52 + 2

18x = -50

Divide both sides by 18, to get the value of x

18x/18 = -50/18

x = -25/9

or x = -2 7/9

The value of x is now known, so let's go back to eqn 2

Substitute x = - 25/9

3x + 4y = 1

3(-25/9) + 4y = 1

Open the bracket

-75/9 + 4y = 1

Make y the subject of the formula

4y = 1 + 75/9

LCM = 9

4y = (9 + 75)/ 9

4y = 84/9

To get y, divide both sides by 4

4y/4 = 84/9 / 4/1

y =

Note : when division changes to multiplication, it always be in its reciprocal form

y = 84/9 / 1/4

y = 84 * 1 / 9 *4

y = 84/ 36

y = 7/3

y = 2 1/3

4 0

3 years ago

K+2 over 3= -7 How do u solve this problem

harkovskaia [24]

K+2/3=-7
K+2=-7x3
K+2=-21
K=-19

3 0

3 years ago

What is 2.1462 rounded to the nearest hundredth?

Minchanka [31]

$\approx2.15$

6 0

2 years ago

Read 2 more answers

Which is the graph of g(x)?

hichkok12 [17]

Answer:

option d

Step-by-step explanation:

We are given with three function

Plug in x=-2 in first function

f(x)= 3 so f(-2) = 3

Plug in x=-2 in second function

$f(x) = -\frac{x}{2} +2$

$f(-2) = -\frac{-2}{2} +2=3$

Plug in x=2 in second function

$f(x) = -\frac{x}{2} +2$

$f(-2) = -\frac{2}{2} +2=1$

Plug in x=2 in third function

f(x)= 2x-3

f(2)= 2(2) -3 = 1

We can see that f(-2)=3 is same for first and second function

also f(2) = 1 is same for second and third functions

So the graph is continuous

option D satisfies the points

8 0

3 years ago

Read 2 more answers

The height and radius of a cone are each multiplied by 3. What effect does this have

Black_prince [1.1K]

The volume of the original cone is multiplied by 27

<h3>Solution:</h3>

We have been given that the height and radius of a cone are each multiplied by 3.

We need to find what effect it has on the volume of the cone.

The volume of the original cone is given as follows:

$\text {Volume of cone}=\frac{1}{3} \pi r^{2} h$

Now, the radius and height are multiplied by 3.

Therefore, the new radius is ‘3r’ and the new height is ‘3h’.

Hence the new volume is

$\text {Volume of new cone}=\frac{1}{3} \pi(3 r)^{2}(3 h)=9 \pi r^{2} h$

original volume of cone x 27 = volume of new cone

Therefore, the original volume of cone is multiplied by 27

8 0

2 years ago