Https://www.tiger-algebra.com/drill/(3x~2−5xy_2y~2)−(7x~2−3xy−3y~2)/
Answer:
Step-by-step explanation:
One way to determine if the equation has any real solutions is to look at its discriminant. For the equation ax²+bx+c = 0, the discriminant is ...
d = b² -4ac
When the discriminant is negative, both solutions to the quadratic are complex. There are no real solutions in that case.
We can find the discriminant values to be ...
A: d = 2² -4(1)(4) = -12 . . . . no real zeros
B: d = 0² -4(3)(-5) = 60 . . . two real zeros
C: d = 8² -4(-2)(0) = 64 . . . two real zeros
D: d = 10² -4(1)(26) = -4 . . .no real zeros
Expressions A and D have no real zeros.
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<em>Comment on the question</em>
You are given an <em>expression</em>, not an <em>equation</em>. There is no equal sign. Hence, we cannot talk about <em>solutions</em>. We can only talk about <em>zeros</em>, values of x that make the expression have a value of zero.
Length of a rectangle 
Width of a rectangle 
We know that :
▪︎Area of rectangle = Length × Breadth
Area of this rectangle :
Therefore, the area of this rectangle 
Answer:
36.6 cm
Step-by-step explanation:
We have the rectangle upright and the rectangle on its side.
Counting the sides starting from the lower left vertex and going clockwise.
7 + 4.3 + (7 - 4.3) + 7 + 4.3 + 7 + 4.3
= 7 + 4.3 + 2.7 + 7 + 4.3 + 7 + 4.3
= 36.6 cm
Answer:
M = (1.5, 0.5)
Step-by-step explanation:
Use the midpoint formula to find the midpoint between two points
