Answer:
kiwi
kiwi
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ERE
321312
31312323
2
32
32
32132
232132132132
12321
232131
HOPE I HELPED ;D
Step-by-step explanation:
Answer: In quadrant 1 or quadrant 2.
Step-by-step explanation:
We have the numbers:
x = c + di
y = e + fi
where c, d, e and f are real positive numbers.
the product of these numbers is:
x*y = (c + di)*(e + fi) = c*e + c*fi + d*ei ´+d*f*i^2
x*y = c*e - d*f + (c*f + d*e)i
where I used that i^2 = -1
knowing that c,f, d and e are positive numbers, then the imaginary part of the product must be always positive.
For the real part, we have c*e - d*f, that can be positive o negative depending on the values of c, e, d, and f.
So we have that the product must lie always in one of the upper two quadrants, quadrant 1 or quadrant 2 because the imaginary part is always positive and the real part can be positive or negative.
Answer:
It's acute triangle
Step-by-step explanation:
c^2 = 19^2 = 361
a^2 + b^2 = 15^2 + 13^2 = 225 + 169 = 394
c^ < a^2 + b^2 > . It's acute triangle
This problem can be readily solved if we are familiar with the point-slope form of straight lines:
y-y0=m(x-x0) ...................................(1)
where
m=slope of line
(x0,y0) is a point through which the line passes.
We know that the line passes through A(3,-6), B(1,2)
All options have a slope of -4, so that should not be a problem. In fact, if we check the slope=(yb-ya)/(xb-xa), we do find that the slope m=-4.
So we can check which line passes through which point:
a. y+6=-4(x-3)
Rearrange to the form of equation (1) above,
y-(-6)=-4(x-3) means that line passes through A(3,-6) => ok
b. y-1=-4(x-2) means line passes through (2,1), which is neither A nor B
****** this equation is not the line passing through A & B *****
c. y=-4x+6 subtract 2 from both sides (to make the y-coordinate 2)
y-2 = -4x+4, rearrange
y-2 = -4(x-1)
which means that it passes through B(1,2), so ok
d. y-2=-4(x-1)
this is the same as the previous equation, so it passes through B(1,2),
this equation is ok.
Answer: the equation y-1=-4(x-2) does NOT pass through both A and B.
Answer:
3/6 or 1/2.........................
