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3 years ago

Please help meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Mathematics

1 answer:

morpeh [17]3 years ago

4 0

Answer:

Step-by-step explanation:

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A football player punts a ball. The path of the ball can be modeled by the equation y = –0.004x2 + x + 2.5, where x is the horiz

Galina-37 [17]

The answer is 252.5 ft

y = –0.004x² + x + 2.5
Let's take y = 0 and we'll get the quadratic equation:

–0.004x² + x + 2.5 = 0
The general formula for quadratic equation is:
ax² + bx + c = 0

a = -0.004
b = 1
c = 2.5

$x_{1,2} = \frac{-b+/- \sqrt{ b^{2}-4ac} }{2a} =\frac{-1+/- \sqrt{ 1^{2}-4*(-0.004)*2.5} }{2*(-0.004)} = \frac{-1+/- \sqrt{1+0.04} }{-0.008} = \\ 
=\frac{-1+/- \sqrt{1.04} }{-0.008} = \frac{-1+/-1.02}{-0.008}$

$x_1=\frac{-1+1.02}{-0.008} = \frac{0.02}{-0.008} = -2.5 \\ 
x_2=\frac{-1-1.02}{-0.008} = \frac{2.02}{-0.008} = 252.5$

Since distance cannot be negative (x1), the correct answer is x2 = 252.5 ft

5 0

3 years ago

Read 2 more answers

¿A qué número decimal es equivalente la fracción 5/8

mixas84 [53]

Answer:

.625

Step-by-step explanation:

Yo usar el calculadora

8 0

3 years ago

Pls explain this to me I don't get it

WITCHER [35]

Answer:

u divide all numbers by 1000

Step-by-step explanation:

3 0

3 years ago

6/7*(11/18-5/12) pls help: fraction form, please

olasank [31]

Step-by-step explanation:

$\frac{6}{7} \times ( \frac{11}{18} - \frac{5}{12} )$

$\frac{6}{7} \times ( \frac{7}{36} )$

$\frac{42}{252}$

7 0

2 years ago

Given f(x) = 4+1 , describe how the graph of g compares with compares with the graph of f?

ycow [4]

I think you wrote an incomplete question. With a little research, I was able to find a question similar to you which is attached below. So, I would solve your question based on the question attached below, which anyways would clear your concept.

Answer:

$g(x)$ is the graph of $f(x)$ translated left $3$ units. Also, the comparison graph is attached below.

Step-by-step explanation:

Considering the complete question attached below

Given the function

$f\left(x\right)\:=\:4x+1$

As for $g(x)=f(x-h)$ , the graph of $g(x)$ is the graph of $f(x)$ translated right h units when ' $h$ ' is greater than zero, and left | $h$ | units when h is lesser than zero.

so it is clear if

$g(x)=4(x+3)+1$ and $f\left(x\right)\:=\:4x+1$ , then $g(x) = f(x+3)$ .

Hence, $h = -4$ ( lesser than zero i.e. h < 0).

Therefore, $g(x)$ is the graph of $f(x)$ translated left $3$ units. Also, the comparison graph is attached below.

5 0

3 years ago