Answer:
Touches at -3 and crosses at 3.5
Step-by-step explanation:
f(x)=(2x-7)^7 (x+3)^4 is given
To find x intercepts:
for x intercepts the value of f(x) =0
Hence f(x)=(2x-7)^7 (x+3)^4=0
Solving we get
2x-7 =0 or x+3 =0
x = 3.5 or x=-3
Thus we find the zeroes of the polynomial of f(x) are 3.5 and -3.
3.5 has a multiplicity of 7 and -3 a multiplicity of 4
Since 7 is odd, i.e. 3.5 has a multiplicity of odd number, hence f(x) crosses x axis at x 3.5
Since -3 has a multiplicity of an even number 4, we find that the curve touches x axis at the point -3.
The equation for the problem is x(1+r)^t
X is the original deposit
R is the rate or percentage of growth
T is the time, in years
X=1800
R=.06
T= 6
F(x)=1800(1+.06)^6
=1800(1.06)^6
=1800(1.41852)
=2533.3344
The above is the future value of the money, to find out how much was gained by interest just subtract the original investment of 1800
2533.3344-1800=753.3344
So the answer is B
Answer:
d=-3
Step-by-step explanation:
d3+27=0
Step 1: Subtract 27 from both sides.
d3+27−27=0−27
d3=−27
Step 2: Take cube root.
d=(−27)(
1
3
)
d=−3
Answer:
WX = WY
9x - 11 = 7x - 3..........Then subtract 7x to the other side such that
2x - 11 = -3..........Then add 11 to both sides such that
2x = 8...........Then divide 2 such that
x = 4
Now we can find each side such that
WX = 9(4)-11 = 25
WY = 7(4)-3 = 25
XY = 4(4)+1 = 17
-625
use long multiplication to evaluate .