Answer: at 4 months the cost for each gym is $250
Step-by-step explanation:
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Answer: 3x^3 + 3x^2 - 3
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~Zain
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
Answer:
178 sq in
Step-by-step explanation:
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Well, we know the formula for finding the area of a rectangle is B*H, and the formula for finding the area of a circle is πr^2
Let's find the area of a rectangle first:
25*6=150 sq in
Now the semicircles {which combined into one whole circle because they're two halves}:
The diameter is 6 inches, so the radius is 3 inches.
π(3)^2=9π
9*π=28.27 which can be rounded down to 28 sq in.
To fin the area of both, we would add them together:
150+28=178 square inches
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Please, please give brainliest, it would be greatly appreciated, I only a few more before I advance, thanks!
Answer:
1. a) B = 3.14 × 4² = 50.24 cm²
b) 16 cm
c) V = B.h = 50.24 × 16 = 803.84cm³
2. a) B = 3.14 × 8² = 200.96 cm²
b) 6 cm
c) V = B.h = 200.96 × 6 = 1205.76 cm³