The sum of x^2−3xy−y^2 and 2x^2+5xy−4y^2:
x^2−3xy−y^2 + 2x^2+5xy−4y^2
= 3x^2 + 2xy - 5y^2
From 6x^2−7xy+8y^2 subtract the sum of x^2−3xy−y^2 and 2x^2+5xy−4y^2:
6x^2−7xy+8y^2 - (3x^2 + 2xy - 5y^2)
= 6x^2−7xy+8y^2 - 3x^2 - 2xy + 5y^2
= 3x^2−9xy + 13y^2
Answer
3x^2−9xy + 13y^2
Answer:
x = 2
Step-by-step explanation:
cross multiply!
48x = (16)6
48x = 96
x = 2
Answer:
D
Step-by-step explanation:
ΔWXZ and ΔYZX
WZ ≅XY {Given}
ZX ≅ ZX {Reflexive property}
∠W ≅ ∠Y
But for SAS congruent the congruent angles should between congruent sides( WX & WZ should be congruent to ZY & XY respectively).
So it cannot be proved using SAS congruent
Timmy is rolling a 6-sided die, what is the sample space? a {1, 2, 3} b {1, 2, 3, 4, 5, 6} c {1, 2, 3, 4, 5, 6, 7} d {1, 2, 3, 4
HACTEHA [7]
1,2,3,4,5,6 one for every side of the die
9514 1404 393
Answer:
(a) linear
Step-by-step explanation:
When faced with determining functional relationships from tables, it is a good idea to look at the x-values (usually the first row) to see if they are sequential or have a common difference. Here, the numbers 1, 2, 3, 4 are consecutive, so have a common difference of 1.
Then, look at the y-values (usually the second row) to see if they have a common difference. Here, those numbers, too, are sequential: 4, 5, 6, 7, so have a common difference of 1.
__
When both x- and y-values have common differences, the table represents a linear function.
You have already determined the y-values have a common difference of 1, so you know choice C is inappropriate.
a. Linear: As x increases by 1, so does y.