Hello from MrBillDoesMath!
Answer:
11
Discussion:
Solution by distance formula:
d = sqrt( (x2-x1)^2 + (y2-y1)^2)
= sqrt ( (-1 - (-1)
)^2 + (4 - (-7))^2 )
= sqrt ( ( -1 + 1) ^2 + (4+7)^2)
= sqrt ( 0^2 + 11^ 2 )
= sqrt ( 11^2)
= 11
Solution by contemplation!
Note the x coordinate of both points is the same (i.e. -1) This means the line joining the points is vertical and its length is simply the difference of the y coordinates: 4 - (-7) = 4 + 7 = 11
Thank you,
MrB
Answer:
x = 1
, y = 4
Step-by-step explanation:
Solve the following system:
{5 x + y = 9 | (equation 1)
10 x - 7 y = -18 | (equation 2)
Swap equation 1 with equation 2:
{10 x - 7 y = -18 | (equation 1)
5 x + y = 9 | (equation 2)
Subtract 1/2 × (equation 1) from equation 2:
{10 x - 7 y = -18 | (equation 1)
0 x+(9 y)/2 = 18 | (equation 2)
Multiply equation 2 by 2/9:
{10 x - 7 y = -18 | (equation 1)
0 x+y = 4 | (equation 2)
Add 7 × (equation 2) to equation 1:
{10 x+0 y = 10 | (equation 1)
0 x+y = 4 | (equation 2)
Divide equation 1 by 10:
{x+0 y = 1 | (equation 1)
0 x+y = 4 | (equation 2)
Collect results:
Answer: {x = 1
, y = 4
The correct answer is
D) ∠HJK is a right angle.
The representation of this problem is shown in the figure below. The segment that goes from the center of a circle to a point of it is the radius. For each point this segment strikes radially the circle, so given that in this very point there is a tangent segment, then the conclusion is that ∠HJK must be a right angle.<span />
Answer:
0.55
Step-by-step explanation:
all you do is subtract
Answer:
There would be a line going directly through the x-asis
Step-by-step explanation:
