Answer:
<h2>x =
-2+i√5 and -2i-√5</h2>
Step-by-step explanation:
The general form of a quadratic equation is ax²+bx+c = 0
Given the quadratic equation x²+4x+9=0 in its standard form, on comparing with the general equation we can get the value of the constant a, b and c as shown;
ax² = x²
a = 1
bx = 4x
b = 4
c = 9
The quadratic formula is given as x = -b±√(b²-4ac)/2a
Substituting the constant;
x = -4±√(4²-4(1)(9))/2(1)
x = -4 ±√(16-36)/2
x = -4±√-20/2
x = -4±(√-1*√20)/2
Note that √-1 = i
x = -4±(i√4*5)/2
x = (-4±i2√5)/2
x = -4/2±i2√5/2
x = -2±i√5
The solution to the quadratic equation are -2+i√5 and -2i-√5
Answer:
-2?
Step-by-step explanation:
Answer:
rice --- no of people
1 ---- 3
2 ---- 6
4 ---- 12
12 --- 36
43 --- 129
Step-by-step explanation:
This is in direct proportion. The constant value of it is 3 so you have to multiply the number of cups into three to get the number of people it can feed
Answer:
Option B) (5+6)+4=5+(6+4) is correct
An example of the associative property of addition is (5+6)+4=5+(6+4)
Step-by-step explanation:
Given 
Verify that the given equation is an example of associative property of addition or not:
We have the associative property of addition
Comparing the equation (1) and(2) we have the given equation is in associative property
Therefore option B) (5+6)+4=5+(6+4) is correct
An example of the associative property of addition is (5+6)+4=5+(6+4)
Answer:
8377
Step-by-step explanation:
Growth rate is exponential, so it is determined by the formula (1+growth rate)^n where n is years
1.035^15 = 1.675...
multiply by 5000, you get 8376.744....
