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Vesna [10]
3 years ago
12

What are the solutions of 4x2 + x = -3? (5 points) and x2 - 7x = -12 (5 points)

Mathematics
2 answers:
Yuki888 [10]3 years ago
7 0
4x^2 + x + 3 = 0

x =  [-1 +/- sqrt (1^2 - 4 * 4 * 3)]  / 8 =  - 1 +/- sqrt ( --47) / 8

=  ( - 1 +/- sqrt47i) / 8  =  -0.125 + 0.857i ,  -0.125 - 0.857i
rosijanka [135]3 years ago
4 0
Hello there :)

Check the picture below for the answer.

Let me know if you have questions about my answer.

Best of luck!


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Question:
Setler79 [48]
To find equivalent equations, you simply have to simplify both of these :)

a)  5/6(x - 6) + 1/6(3 - x)

Simplify.

5/6x - 5 + 1/2 - 1/6x

Add like terms.

(5/6x - 1/6x) + (-5 + 1/2)

Simplify.

4/6x +(-4.5)

Simplify.

2/3x - 4.5

b) (y + 7)4 + 8 - 5y

Simplify.

4y + 28 + 8 - 5y

Add like terms.

(4y - 5y) + (28 + 8)

Simplify.

-y + 36

~Hope I helped!~
4 0
3 years ago
You plant a rectangular rose garden along the side of your garage. you enclose 3 sides of the garden with 40 feet of fencing. th
ycow [4]
Let x be the length of the garden
and y be the width of the garden.

since you only enclose 3 sides of the garden by a 40 ft fence. so the equation for this is:

2x + y = 40

and the area of the garden is 100 sq ft, so in equation
xy = 100
from equation 1, 2x + y = 40
y = 40 - 2x
substitute to equation 2

xy = 100
x ( 40 - 2x) = 100
40x - 2x^2 = 100
2x^2 - 40x + 100 = 0

x = 2.9 ft
y = 34.5 ft 
5 0
3 years ago
Marylin has two credit cards
Tcecarenko [31]

Answer:

Awesome! Is there more to the question? Lol

Step-by-step explanation:

3 0
2 years ago
THIS MY THIRD TIME POSTING THIS QUESTION PLEASE HELP MEE!!!
Alborosie

Answer:

From my thinking prospection the answer should be 18....

5 0
2 years ago
Use the graph and the translation (x,y)
blsea [12.9K]
There’s no picture..
3 0
2 years ago
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