2 years ago

Can someone please help me factor 3x^3-19x^2+33x-9

Mathematics

1 answer:

brilliants [131]2 years ago

8 0

Its (3x-1)(x-3)(x-3)

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agasfer [191]

Answer:

102

Step-by-step explanation:

8 0

2 years ago

What are the solutions of the quadratic equation? 4x^2+34x+60=0

insens350 [35]

Answer:

Option 3) -6,-5/2

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$4x^{2} +34x+60=0$

$a=4\\b=34\\c=60$

substitute in the formula

$x=\frac{-34(+/-)\sqrt{34^{2}-4(4)(60)}} {2(4)}$

$x=\frac{-34(+/-)\sqrt{196}} {8}$

$x=\frac{-34(+/-)14} {8}$

$x_1=\frac{-34(+)14} {8}=-\frac{20}{8}=-\frac{5}{2}$

$x_2=\frac{-34(-)14} {8}=-6$

6 0

2 years ago

Alexandra invested $610 in an account paying an interest rate of 7 3/8% compounded

shusha [124]

Exact answer: 165.5754

Rounded to the nearest dollar: 166

4 0

2 years ago

Y = x + 7; x = -5 what is the value of the y for the given value of x

gregori [183]

If x =-5 then you put -5 in place of x.
y=-5+7
y=2

3 0

3 years ago

14 POINTS ASAP WHAT IS THE MEASURE OF ANGLE A

sashaice [31]

Wow...we have lots of numbers to go through. we know that a 6 sided figure is a hexagon and the interior angles add up to be 720°. so.....

∠A + ∠B + ∠ C + ∠D + ∠E + ∠F = 720°
(x - 60) + (x - 40) + 130 + 120 + 110 + (x - 20) = 720
3x + 240 = 720 (combined all like terms)
3x = 480 (subtracted 240 from both sides)
x = 160 (divided both sides by 3)

put the value of x into ∠A (x - 60) = 160 - 60 = 100

∠A = 100°

7 0

3 years ago