Answer:
x=±√−9
No real solutions.
Step-by-step explanation:
Step 1: Add 3x^2 to both sides.
27+3x2=−3x2+3x2
3x2+27=0
Step 2: Subtract 27 from both sides.
3x2+27−27=0−27
3x2=−27
Step 3: Divide both sides by 3.
3x2
/3
=
−27
/3
x2=−9
Step 4: Take square root.
x=±√−9
Answer:
I believe the answer is B
Step-by-step explanation:
The answer is b, because it is linear and x and y have a proportional relationship with x increasing by 2 and y increasing by 4. So the slope is 2/4 or 1/2 making it a proportional relationship.
The answer is <span>Grid method.</span>
9514 1404 393
Answer:
9/16
Step-by-step explanation:
After the first exchange the amount in dollars is ...
£320 × $1.25/£1 = $400
After the spending, the amount in dollars is ...
$400 -100 = $300
After the second exchange, the amount in pounds is ...
$300 × £0.60/$1 = £180
This amount is 180/320 = 9/16 of the original amount.
