The measure of the angle CBD = 180° - 30° = 150°.
Answer:
in this method a variable is expressed in terms of another variable from one equation and it is substituted in remaining equation.
Step-by-step explanation:
solve:x+2y=9 and 3x-y=13.
x+ 2y=9…be the first equation
3x-y=13…be the second equation
from first equation
x=9-2y…be the third equation substituting value of x from third equation in second equation, we get
3(9-2y)-y=13
or, 27-6y-y=13
or, y=2
now,
substituting value of y in third equation, we get,
x=9-2×2
=9-4
=5
the required value of x and y are 5&2
Answer:
What is the question? do you need the area? :)
Step-by-step explanation:
Answer:
The new balance is $675.8
Step-by-step explanation:
Solution
Given that
The total amount of loan = $820.
The terms were = 3/10, n/60
Within 10 days, the buyer sent in a payment of =$140
What is the new balance =?
Now,
3/10 = if the amount is paid in 10 days, a discount of is included
n/60 = This means that all amount should be paid within 60 days
Thus,
$140 for 3/10 as this is paid within 10 days
140 *3% = 140 * 3/100
we get
=$4.2 of discount
Then,
The balance amount becomes $ 820 - 140 -4.2
=$675.8
The correct notation for the 
is -84+10i.
Answer: Option B.
<u>Step-by-step explanation:</u>
A square root is the inverse function of exponential function.
Square root of positive numbers either result natural numbers or rational numbers.
But the square root of negative number is not possible. So that an imaginary number system was founded to represent the square root of negative number.
It is represented with i with the result of the solution of the square root.
Here the given problem is ,
-84 will remain the same and let us convert 
.
can be written as 
×
.
= 10
= i.
∴ =10i.
The correct notation for the is -84+10i
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