3x² + 2x - 4 = 0
Δ = b² - 4.a.c
Δ = 2² - 4 . 3 . -4
Δ = 4 - 4. 3 . -4
Δ = 52
x = (-b +- √Δ)/2a
x' = (-2 + √52)/2.3
x'' = (-2 - √52)/2.3
x' = 0,8685170918213297
x'' = -1,5351837584879966
2 Decimal places
x' = 0,87
x'' = -1,54
Answer:
Angle QPR = 64.5 degrees
Step-by-step explanation:
90+90+90+90 is 360
Therefore, the interior angle sum of a rectangle is 360 degrees
Answer:
The length of each side is 2m.
Step-by-step explanation:
A square has an area of s^2
Take the square root of 4 to find the length of each side.
The square root of 4 is 2.
60÷8= 7 remainder 4
86÷6= 14 remainder 2
15÷6= 2 remainder 3
56÷2= 28
If you're diving by decimals then...
60÷8= 7.5
86÷6= 14.3 Draw a line over the number like this ___
14.3
15÷6=2.5
56÷2= 28.0 or 28.
Hope this helps!!
