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viktelen [127]
3 years ago
11

The vectors <4,2> and <-4,-2> are opposite directions and are orthogonal to the vector u = <2,- 4>. That’s bec

ause the dot product of the vectors equals zero. True False
Mathematics
1 answer:
Naddik [55]3 years ago
5 0
This is true since the dot product is zero
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Caroline drew the blueprints of her new kitchen on a coordinate plane. The coordinates of the four corners of her square kitchen
puteri [66]

Answer:

If it is a square kitchen the walls will be 12 units long

Step-by-step explanation:

To get from 2,4 into -10,4 you move down 12 units

3 0
2 years ago
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(6x to the second power +7x) + (5-2 to the second power +9x) please help
lidiya [134]

Answer:

4x^2+16x+5

Step-by-step explanation:

(6x^2+7x)+(5-2x^2+9x)

6x^2-2x^2+7x+9x+5

4x^2+16x+5

7 0
3 years ago
What is the value of x, given that pq is parallel to bc?
madreJ [45]
The correct answer is 12.

3 0
3 years ago
What is an equation of the line that passes through the points (-1, 6) and<br> (-1, –5)?
miskamm [114]

Answer: 11x + 11

Step-by-step explanation:

This is two points equation. It could be done in various ways depending on the level of understanding of the topics. The formula goes thus

y - y₁         y₂ ₋ y₁                           y₂ ₋ y₁

------    =   ----------      or  y ₋ y₁ =    ---------  ˣ  ( x - x₁ )

x - x₁         x₂ ₋ x₁                           x₂ ₋ x₁

Where x₁ = -1, x₂ = -1, y₁ = 6, y₂ = -5. Now substitute for the values in the formula above and solve.

y - 6           -5 - 6       -11             -11

------      =   --------    =  ----      =    -----

x - (-1)         -1 - (-1)      -1 + 1          0

y - 6          -11

------    =    -----

x + 1           0   ,

Now we cross multiply to have a linear equation

0( y - 6 )  =  -11( x + 1 )

0   =   -11x - 11, now multiply by -1

The equation now becomes

11x + 11

   

3 0
3 years ago
1/4 DIVIDED BY 1/2 = ? <br> CHECK BY MULTIPLYING
Llana [10]

Answer:

1/2

Step-by-step explanation:

1/4÷1/2

1/4*2/1

2/4

1/2

Points to remember:if u change dividion sign into multiplication sign do it's reciprocal.

8 0
2 years ago
Read 2 more answers
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