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3 years ago

Quadratic function question

1 answer:

3 0

A quadratic function is one of the form f(x) = ax2 + bx + c, where a, b, and c are numbers with a not equal to zero. The graph of a quadratic function is a curve called a parabola. A parabola intersects its axis of symmetry at a point called the vertex of the parabola. You know that two points determine a line.

Hope it helps!

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Plz help. Find the measure of each angle indicated.

Doss [256]

to find the angle at point E you would take 180-105. which equals 75.

75+55= 130

180-130=50

Angle D= 50 degrees

Angle C= 55 degrees

Angle E= 75 degrees

6 0

3 years ago

I don’t understand!!!!!!

HACTEHA [7]

The solution is greater than one but less than or equal to 8.

7 0

3 years ago

One side of a right triangle is 8 cm shorter than the hypotenuse and 7 cm shorter than the third side. Find the lengths of the s

Reptile [31]

Answer:

5 cm

Step-by-step explanation:

Let the shorter side be a, longer side be b, hypotenuse be c

By Pythagorean theorem:

a² + b² = c²

a² + (a + 7)² = (a + 8)²

a² + a² + 14a + 49 = a² + 16a + 64

a² - 2a - 15 = 0

a² + 3a - 5a - 15 = 0

a(a + 3) - 5(a + 3) = 0

(a + 3)(a - 5) = 0

a = -3 or a = 5

Because a is a side length and is a positive number

a = 5

7 0

3 years ago

There are 20 sweets in a box.

natima [27]

Answer:

$probability \: of \: getting \: red \: sweets = \frac{x}{20} \\ probability \: of \: getting \: yellow \: sweets \: = \frac{(20 - x)}{20}$

5 0

3 years ago

What is the least number that has 4 odd factors that are all the same?

mixer [17]

1 x 1 x 1 x 1 = 1

Hope this helps. :)

5 0

3 years ago

Quadratic function question​

Quadratic function question