When you would not need to use the quadratic formula

1 answer:

3 0

Answer: When the quadratic equation can be factored or solved by completing the square, you do not need to use the quadratic formula

Step-by-step explanation: In the form ax² + bx + c

Whenever a is 1 (implied, no coefficient of x²) and the constant, c, is a multiple of numbers whose sum or difference is equal to b, factoring is much quicker and easier than using the quadratic formula.

Even when there is a coefficient of x², there are procedures to find the factors and solve for x without resorting to the quadratic formula.

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Area= Help please!! Asap thank u so much

Natasha_Volkova [10]

The area of the shaded region in the task content is; 251.2.

<h3>What is the area of the shaded region in the task content?</h3>

It follows from the task content that the area of the shaded region is;

= Area of semicircle IL - Area of semicircle JK + Area of semicircle IJ + Area of semicircle KL.

Hence, since the radius of each semicircle are as follows;

R(IL) = 12

R(IJ) = R(JK) = R(KL) = 4.

Hence, the Area of the shaded region can be evaluated as;

= (π/2)(12² - 4² + 4² +4²).

= π (144 +16)

= (3.14/2) × 160 = 251.2

Read more on Area of semicircle;

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6 0

2 years ago

Masha had 200 scoops of ice cream and Liz had 180 scoops. What is the ratio of the ice cream they have?

s2008m [1.1K]

It depends. If its the ratio of Masha to Liz, it is 10:9. If it is Liz to Masha, its 9:10. If it is Masha to the total, it is 10:19. If it is Liz to the total, it is 9:19. Hope this helps!

5 0

3 years ago

Read 2 more answers

Select all options that are equivalent to pi (π).

Natalija [7]

Answer:

first and last options only

Step-by-step explanation:

C = dπ

$\frac{c}{d}$ = π