Answer:
Step-by-step explanation:
geometric progresion formula:
Answer: $115.01
Explanation:
First we have to find out the what 18 percent of tip is. So, multiply 97.45 by 0.18, and you’ll get 17.56. 17.56 is the 18 percent tip. However, the question asks for the total amount the family will pay, so add their bill with the tip. 97.45 + 17.56 = 115.01
The quadratic equations that have real roots are and .
<h3>What is the discriminant of a quadratic equation?</h3>
The value of a discriminant of a quadratic equation shows how many roots f(x) have. If the value of the discriminant is greater than 0 then the quadratic equation has real and distinct roots and if the value of the discriminant is equal to 0, then the quadratic equation has real and same roots. In case the value of the discriminant is less than zero then the quadratic equation will have no real roots.
In order to know if the quadratic equation has real roots or not, we need to find the discriminant of the given quadratic equations,
A.)
Here, a= -1, b=2 and c=-6
As the value of the discriminant is negative it will not have real roots.
B.)
Here, a= -2, b=3 and c=4
As the value of the discriminant is positive it will have real roots.
C.)
Here, a=2, b=1 and c=-6
As the value of the discriminant is positive it will have real roots.
A.)
Here, a=2, b=-1 and c=3
As the value of the discriminant is negative it will not have real roots.
Learn more about Discriminant:
brainly.com/question/15884086
If there are 8 groups of 65 students, that means they can seat 8*65 students total. 520 students