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4 years ago

How many minutes does the teach

Mathematics

1 answer:

Anastaziya [24]4 years ago

4 0

Assuming that's a 40 minutes a lesson the minutes the tennis teacher teaches in a week is 800 minutes

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I CAN EXPLAIN A PROOF OF THE PYTHAGOREAN THEOREM.

Radda [10]

The answer should be 8 cm2

6 0

3 years ago

Fill in the missing portions of the function to rewrite g(x) = 3a^2 − 42a + 135 to reveal the zeros of the function. What are th

mariarad [96]

Answer:

g(x) = 3(x-9)(x-5)

Zeros: x = 9 and x = 5.

Step-by-step explanation:

Given a second order polynomial expressed by the following equation:

$ax^{2} + bx + c, a\neq0$ .

This polynomial has roots $x_{1}, x_{2}$ such that $ax^{2} + bx + c = a(x - x_{1})*(x - x_{2})$ , given by the following formulas:

$x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}$

$x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}$

$\bigtriangleup = b^{2} - 4ac$

In this question:

$g(x) = 3x^{2} - 42a + 135$

$a = 3, b = -42, c = 135$

$\bigtriangleup = (-42)^{2} - 4*3*135 = 144$

$x_{1} = \frac{-(-42) + \sqrt{144}}{2*3} = 9$

$x_{2} = \frac{-(42) - \sqrt{144}}{2*3} = 5$

g(x) = 3(x-9)(x-5)

Zeros: x = 9 and x = 5.

8 0

4 years ago

What is the slope below?

Debora [2.8K]

Answer:

8/1

Step-by-step explanation:

To find slope you would do:

rise/run

Up and down is the rise

Left and right is the run

In your problem it goes up 8 and right 1

7 0

2 years ago

Is 20/6 rational or irrational

zhenek [66]

It's rational because it is a repeating decimal. 20/6=3.33333333333333...

6 0

3 years ago

1) what is the simplest form of the expression sqrt 20 + sqrt 45- sqrt 5

larisa86 [58]

4 sqrt 5 is the answer

4 0

3 years ago

Read 2 more answers