Answer:
Correct option: C -> 2
Step-by-step explanation:
The first equation is:
And the second equation is:
From the second equation, we have:
Using this value of y in the first equation, we have:
Calculating the discriminant Delta, we have:
We have 
, so we have two real values for x, therefore we have two solutions for this system.
Correct option: C.
(If the system of equation is actually:
We would have:
We also have , so we have two solutions for this system.
Correct option: C.)
It would take 7.25 Hours
217.5/30= 7.25
Answer:
Step-by-step explanation:
Given :
l + m + n = 9
l²+ m² + n²= 31
l + m + n = 9
On squaring both sides
(l + m + n)²= 9²
(l²+m²+n²+2(lm+mn+nl) = 81
31 +2(lm+mn+nl) = 81
2(lm+mn+nl) = 81 - 31
2(lm+mn+nl) = 50
(lm+mn+nl) = 50/2
(lm+mn+nl) = 25
Hence, the value of (lm+mn+nl) = 25
There are 8 triangles in this circle
An entire circle = 360 degrees
360/8=45
So I think the answer should be 45%
#1
y=x+5
#2
y=3/8
- Horizontally Streched by a factor 8/3 parallel to x axis
#3
Reflection by y axis as x will be negative and shifting 2 units right
#4
y=6x+1
- vertically streched by a factor 6 and shifting 1 units left
#5
y=x-11
#6
y=8x
Horizontally streched by 1/8 factor
