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3 years ago

Sasha says that a vector has a direction component in it; therefore, we cannot add two vectors or subtract one from

Mathematics

1 answer:

natima [27]3 years ago

4 0

Answer:

He is incorrect. The addition and subtraction of vector is defined for all cases when you know the information about the vectors

Step-by-step explanation:

Arithmetically you have to find the x-axis and y-axis component for each vector. In case of adition if the components have the same direction you add then, subtract if they have opposite. Always subtraction of two vectors a and b could be defined as the sum of the a plus -b

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Find the equation of the line that is perpendicular to the line x = −5 and passes through the point (1, π).

Tanzania [10]

The line x = -5 is a vertical line, therefore the line perpendicular to this line is the horizontal line of the form y = a.

We know that it passes through the point (1, π) → x = 1, y = π.

Therefore we have answer: A) y = π.

5 0

3 years ago

Before the clowns arrived, only 35% of the children wore happy faces. If 117 children did not wear happy faces, how many childre

denis-greek [22]

Answer:

180

Step-by-step explanation:

If 35% did not wear happy faces, then 100% -35% = 65% did wear happy faces.

Then we have ...

... 117 = 65% × (all children)

... 117/0.65 = all children = 180 . . . . . . divide by 65% = 65/100 = 0.65

There were 180 children in all.

4 0

2 years ago

7. 2x+3 = 32<br> x=<br> Insert your graph below:

Andrej [43]

Answer:

x=29/2

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

You spent $50 on supplies for the bake sale Each item sold for $2. After the sale , you had a profit of $180. How many items did

Sergio [31]

50+2x=180
-50. -50
2x=30
÷ = ÷
2= 2
x=15

6 0

2 years ago

Complete the missing value in the solution to the equation:<br> 7 + 5x = =3(y-2)<br> ( ,5)

mafiozo [28]

Answer:

x = 2/5

Step-by-step explanation:

Given:

7 + 5x = 3(y-2)

Rearrange this equation such that x is expressed in terms of y

7 + 5x = 3(y-2) (expand right side)

7 + 5x = y(3)-2(3)

7 + 5x = 3y-6 (subtract 7 from both sides)

5x = 3y - 6 - 7

5x = 3y - 13

we are given the y-value of the coordinate pair (? , 5)

simply substitute y=5 into the equation above

5x = 3y - 13

5x = 3(5) - 13

5x = 15 - 13

5x = 2 (divide both sides 5)

x = 2/5

7 0

2 years ago