Answer:
option: A
Step-by-step explanation:
" if for a polynomial with rational coefficients has irrational roots then these irrational roots will always appear in pair " .
we are given that and are two roots of a polynomial equation with rational coefficients, then it's complex conjugate is also a root of this polynomial equation i.e. ' ' and ' ' are also roots of this polynomial equation.
Hence, option A is correct.
Answer:
14
Step-by-step explanation:
In total, Emily has yards of ribbon.
Each bow requires yards of ribbon
To figure out, we divide total amount of ribbon by amount each bow needs:
Number of bows =
So the maximum number of "complete" bows Emily can make is 14
Emily has a total of 27 1/4 yards of ribbon. Each bow requires 1 5/6 yards, therefore Emily can make 14 bows with the ribbon she has.
To solve this problem, we first need to determine the total amount of ribbon that Emily has. She has one piece that is 23 yards long and another that is 4 1/4 yards long. To find the total, we add these two lengths together:
23 yards + 4 1/4 yards = 27 1/4 yards
Each bow Emily makes needs 1 5/6 yards of ribbon. To find out how many bows she can make, we divide the total amount of ribbon by the amount needed for each bow:
27 1/4 yards ÷ 1 5/6 yards = 14.6(around)
Since Emily cannot make a fraction of a bow, we round down to the nearest whole number. So, Emily can make 14 bows.
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Answer:
at x= 0 and x= 1 and not at x= 3.
Step-by-step explanation:
We have the functions, and .
It is given that,
At x=0, x=1, and x=3,
i.e.
i.e.
i.e.
i.e. x= 0 and (x-1)= 0
i.e. x= 0 and x= 1.
Also, after plotting the graphs of both the functions, we see their intersection point are (0,1) and (1,3).
Thus, we get that at x= 0 and x= 1 and not at x= 3.
Answer:
3. x = 5
4. -5 1/25
Step-by-step explanation:
-3x+5=-10
Subtract the 5 from both sides...
-3x = -15
Divide by -3
x = 5
For 4, it's just multiplying.
-2 4/5 in improper form is -14/5
1 4/5 in improper form is 9/5
-14/5 x 9/5 is -126/25
-126/25 can be -5.04 or -5 1/25.
Answer:
3. a (x=5)
4. -126/25
Step-by-step explanation:
3. -3x+5=-10
-3x=-10-5
-3x=-15
x=5
4. -(-2 4/5) x 1 4/5
(-14/5) x 9/5
= -126/25