Answer:
6/11 or .54
Step-by-step explanation:
What you do is you take the number of white shirts and black shirts and add them together. That equals 12.
The number of shirts all together is 22. What you do is put it into a fraction 12/22.
You will then reduce that to get 6/11.
6/11 or .54 is your answer.
Answer:
AC, AB, BC
Step-by-step explanation:
Given
Required
Name the sides
(a) and
This represents side
(b) and
This represents side
(c) and
This represents side
<em>i.e. we simply bring the name of both angles together</em>
The answer is D a parallelogram with four congruent angles
Answer:
Step-by-step explanation:
The quadratic formula is used to find the roots or zeroes of a quadratic equation. It is:
The discriminant helps us find the number of roots. If the discriminant is...
- Negative: there are no real roots
- Zero: there is one real root
- Positive: there are two real roots
It is the expression under the square root symbol:
First, we must put the given quadratic equation into standard form, which is:
The equation given is . We have to move the -49 to the left side. Since it is a negative number, we add 49 to both sides.
Now we can solve for the discriminant because we know that:
Substitute these values into the formula for the discriminant.
Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction.
Solve the exponent.
Multiply 4, 1, and 49.
Subtract.
The discriminant is zero, so the quadratic equation x²+ 14x = -49 has <u>1 real root.</u>