The answer is B , C , and D, & E
<em>If x=-6 and y=2, evaluate 2(y-3xy)</em>
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First, We need to simplify the expression by multiplying the parentheses by 2:-
Now , Replace y with 2 and x with -6:-
Simplifying,
Further simplifying,
Adding,
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Answer:
63cm³
Step-by-step explanation:
The shape above is a rectangular prism
The formula for a rectangular prism is given as:
= Length × Width × Height
Length = 3cm
Width = 3cm
Height = 7cm
= 3cm × 3cm × 7cm
= 63 cm³
The volume of the rectangular prism = 63cm³
Answer:
x = 1, y = -2
Step-by-step explanation:
- 2x + 10y = -22 _______(1)
-2x - 4y = 6 _______(2)
From (1),
10y + 22 = 2x
x = (10y + 22) / 2
x = 5y + 11 .______(3)
Substitute (3) into (2),
-2 ( 5y + 11) -4y = 6
-10y - 22 - 4y = 6
-14y = 6 + 22
-14y = 28
y = 28/ -14
y =-2
Substitute y = -2 into (3).
x = 5y + 11
x = 5(-2) + 11
x = -10 + 11
x = 1
Therefore, the solution is x = 1, y = -2.
Line <span>–3x + 9y = 18
</span>
x-intercept when y = 0
so -3x = 18
x = -6
y-intercept when x = 0
so 9y = 18
y = 2
answer
x-intercept (-6,0)
y-intercept (0, 2)
hope it helps
