Answer:
y = x² + 38x + 311
Step-by-step explanation:
If a polynomial has rational coefficients and irrational roots, then the roots must be conjugate pairs.
y = (x − (-19-5√2)) (x − (-19+5√2))
y = (x + 19+5√2) (x + 19−5√2)
Use FOIL to distribute:
y = x² + x (19−5√2) + x (19+5√2) + (19+5√2)(19−5√2)
y = x² + 19x − 5√2 x + 19x + 5√2 x + (19+5√2)(19−5√2)
y = x² + 38x + (19+5√2)(19−5√2)
Use FOIL to distribute the last term:
y = x² + 38x + 19² − 95√2 + 95√2 − 50
y = x² + 38x + 361 − 50
y = x² + 38x + 311
Answer:
1/5
hope it helps
Step-by-step explanation:
we can write it as
x÷ 3/7= 7/15
rest of the explanation in the pics above.
the mode (rounded to the nearest tenth if needed) of the following data set is 30,29,40,51,39,33,24,60,40,35,58
scoray [572]
The mode is the number that occurs the most in the sequence of numbers, so the mode is 40 since that number is repeated the most in the sequence, 2 times.
Answer:
8,403.6
Step-by-step explanation:
6/5 of 7003
= 6/5 × 7003
= 42,018/5
= 8,403.6
Hence 6/5 of 7003 is 8,403.6
Answer:
t
=
r
s
−
2
r
x
Step-by-step explanation:
Brainliest?
