Answer: Hello mate!
We have the equation 2x^2 + x = 14
let's solve it for x:
2x^2 + x - 14 = 0
the solutions can be obtained with the equation:
then the solutions are:
(-1 - 10.63)/4 = -2.907, that rounded to the hundreths is equal to -2.91 (because the number after the hundredth place is a 7, so we round up)
and
(-1 +10.63)/4 = 2.407, that when rounded to the hundreths place is equal to 2.41 (the same reason as before)
then the answers are -2.91 and 2.41
Answer:
x=3,y=-10
Step-by-step explanation:
First, we add 21 to both sides of the first equation
13x=-21-6y
+21 +21
13x+21=-6y Now divide by -1 to make it positive
/-1 /-1 /-1
-13x-21=6y
Now we have to subtract 36 on both sides of the second equation
-8x=36+6y
-36 -36
-8x-36=6y
Since both equations equal 6y we can solve the equation by making them "equal" each other
-13x-21=-8x-36 Add 36 to both sides
+36 +36
-13x+15=-8x Add 13x to both sides
+13x +13x
15=5x Divide by 5
/5 /5
x=3
Now use the x value to solve
13(3)=-21-6y
39=-21-6y Add 21 to both sides
+21 +21
60=-6y
/-6 /-6
y=-10
Hope this helped!
Answer:
The answer to your question is Center = (-3, 5) radius = 8
Step-by-step explanation:
Data
(x + 3)² + (y - 5)² = 64
Process
Because of the characteristics of the equation, we conclude that it is a circle.
Standard form of a circle:
(x - h)² + (y - k)² = r²
In this form of the equation, the center has coordinates (h, k), just change the signs.
And to get the radius, just get the square root of r²
h = -3
k = 5
r = 8
Center = (-3, 5)
radius = 8
Answer: 8270
Step-by-step explanation: 1kg=1000 grams