<span>A. 15+0.6(15)
You posted this question twice, hah.
Do you need work to show it?
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Answer:
-150 (x^2y+2)y³
Step-by-step explanation:
To Find the product of 25x^2y and -6x²y3.
(25x^2y) (-6x²y³)
= 25(-6) (x^2y+2) y³
= -150 (x^2y+2)y³
Answer:
(x,y)=(-2,-5)
Step-by-step explanation:
y=1/2x-4
y=-2x-9
(y=) 1/2x-4=-2x-9
1/2x +2x=-9+4
1/2x +4/2x=-5
5/2x=-5
5x=-5*2
5x=-10
x=-2
x=-2
y=-2x-9=-2*(-2)-9=4-9=-5
(x,y)=(-2,-5)
Answer:
Step-by-step explanation:
Adding 10 to both sides.
Adding 
to both sides.
Dividing both sides by 10.
∴
Answer:
7/12 OR 0.58 (2.d.p)
Step-by-step explanation:
Product means that the two rational numbers are being multiplied to get 7.
The question also tells us that one of them is 12. Therefore we can write an equation to express this information where we represent the unknown rational number using the letter 'r':
r x 12 = 7
Rearrange to find r:
r x 12 / 12 = 7 /12
r = 7/12 = 0.5833....
= 0.58 (2.d.p)
Hope this helped!
