$6x ^2-7x+2=0\\ \\ a=6 , \ b = -7 , \ c=2 \\ \\\Delta = b^{2}-4ac = (-7)^{2}-4*6*2=49-48=1 \\ \\x_{1}=\frac{-b-\sqrt{\Delta }}{2a} =\frac{7-\sqrt{1}}{2*6}=\frac{7-1}{12} =\frac{6}{12}= \frac{1}{ 2}\\ \\x_{2}=\frac{-b+\sqrt{\Delta }}{2a} =\frac{7+\sqrt{1}}{2*6}=\frac{7+1}{12} =\frac{8}{12}= \frac{2}{ 3}$

7 0

3 years ago

How much simple interest is earned on $4,000 in 3 1/2 years at an interest rate of 5.2%?

AveGali [126]

Answer:

$728

Step-by-step explanation:

The formula for simple interest is I = PRT, where I = interest earned/paid, P = principal amount deposited or borrowed, R = rate of interest as a decimal, and T = time in years.

I = PRT

I = (4000)(0.052)(3.5)

I = 728

4 0

2 years ago

Read 2 more answers

HELP PLEASE ASSIGNMENT DUE TONIGHT SHOW WORK BELOW

alisha [4.7K]

Answer:

1017.9

Step-by-step explanation:

Find the area of the circle on top first using 3.14*r^2

3.14*9^2 = 254.5

Multiply this number by the height, 4

254.34*4 = 1017.9

8 0

2 years ago