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3 years ago

10

How does the area change?

1 answer:

kap26 [50]3 years ago

6 0

Garden a is doubled to get garden b

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Describe the solutions for the quadratic equation shown below:

PtichkaEL [24]

The solutions for the quadratic equation 9x² - 6x + 5 = 0 are A. 2 complex roots

To determine the the type of roots the quadratic equation 9x² - 6x + 5 = 0, we use the quadratic formula to find the roots.

So, for a quadratic equation ax + bx + c = 0, the roots are

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

With a = 9, b = -6 and c = 5, the roots of our equation are

$x = \frac{-(-6) +/- \sqrt{(-6)^{2} - 4 X 9 X 5} }{2 X 9} \\x = \frac{6 +/- \sqrt{36 - 180} }{18} \\x = \frac{6 +/- \sqrt{-144} }{18} \\x = \frac{6 +/- \sqrt{-12} }{18}\\x = \frac{6}{18} +/- i\frac{12}{18} \\x = \frac{1}{3} +/- i\frac{2}{3} \\x = \frac{1 + 2i}{3} or \frac{1 - 2i}{3}$

Since the roots of the equation are (1 + 2i)/3 and (1 - 2i)/3, there are 2 complex roots.

So, the solutions for the quadratic equation 9x² - 6x + 5 = 0 are A. 2 complex roots

Learn more about quadratic equations here:

brainly.com/question/18117039

5 0

3 years ago

The sum of three numbers is 180. If the first number is (2 x minus 11), and the second is (x minus 4) which expression represent

kirill115 [55]

Answer:

The third number is 195-3x

Step-by-step explanation:

Given:

sum of three numbers, a, b, c is 180.

a=2x-11

b=x-4

c= ?

Solution:

a+b+c = 180

2x-11 + x-4 + c = 180

c = 180 - (2x-11) - (x-4)

= 180 -2x+11 - x+4

= 180 + 11 + 4 -2x -x

= 195 -3x

8 0

4 years ago

2x3 equals what because I didn’t get it

SashulF [63]

Ok so 2x3= 6 so yeah

8 0

3 years ago

Read 2 more answers

-3=6m+5+4 i really need help with thid

vodomira [7]

-3=6m+5+4
add 5+4 = 9
-3=6m+9
subtract 9 from both sides
-12=6m
divide 6 from both sides
-2=m

7 0

3 years ago

Read 2 more answers

If m∠W = 105° and m∠Y = 75°, then m∠X

FrozenT [24]

Answer:

105°+75°=180°

X=180°

5 0

3 years ago