Answer:
196
Step-by-step explanation:
The discriminant (Δ) is given by:
Where the polynomial is in the form:
In this problem, a = 1, b = 0, and c = -49. Thus, plugging it into the formula:
Thus, the discriminant of x² – 49 = 0 is 196.
10/5 =2
7-2+4^2 =5+16=21
2*21=42
Answer:
$9.86
Step-by-step explanation:
First, write both numbers in the same form. Convert 8
1
2
to a decimal.
8
1
2
= 8+
1
2
= 8+
1×5
2×5
= 8+
5
10
= 8+0.5
= 8.5
Multiply.
11.6
× 8.5
580
+ 9280
98.60
Kendra earned $98.60 last week.
Now multiply to find how much money Kendra donated to the charity last week. She earned $98.60, and she donates
1
10
of her earnings each week.
First, write both numbers in the same form. Convert
1
10
to a decimal.
1
10
=0.1
Multiply.
98.6
× 0.1
9.86
Kendra donated $9.86 to the charity last week.
Turn 7 into a fraction so it can be multiplied. > 7/1
Multiply 7/1 by 1/3.
7/1 × 1/3 = 7/3
Simplify 7/3 into a mixed number.
7/3 = 2 1/3
Nolan will need 2 1/3 lbs of turkey.
The answer is 0.04
All you have to do is go to a calculator and type 4 then put %
