3 years ago

How many solutions does this

Mathematics

1 answer:

ira [324]3 years ago

3 0

Erm- can’t answer this. We need the graph

You might be interested in

The flight of a cannonball toward a hill is described by the parabola y = 2 + 0.12x - 0.002x 2 . the hill slopes upward along a

Alexandra [31]

To find where on the hill the canonball lands
So 0.15x = 2 + 0.12x - 0.002x^2
Taking the LHS expression to the right and rearranging we have -0.002x^2 + 0.12x -
0.15x + 2 = 0.
So we have -0.002x^2 - 0.03x + 2 = 0
I'll multiply through by -1 so we have
0.002x^2 + 0.03x -2 = 0.
This is a quadratic eqn with two solutions x1 = 25 and x2 = -40 since x cannot be negative x = 25. The second solution y = 0.15 * 25 = 3.75

8 0

3 years ago

Can someone please help me? :(

Sholpan [36]

The answer is attached, hope this helps!

5 0

3 years ago

Read 2 more answers

Simplify -2X + 4Y -16

Novosadov [1.4K]

The answer is -2(x+6)

6 0

3 years ago

Read 2 more answers

What is the rate of change of the water level , in feet per hour

miskamm [114]

A; rate of change is the same as slope, so, using the slope formula, $m= \frac{y_{2} - y\1_{1} }{ x_{2} - x_{1} }$ , where $m$ is the slope and $x_{1}$ , $x_{2}$ , $y_{1}$ , and $y_{2}$ are the $x$ and $y$ values.

Plug in $2$ points for $x$ and $y$ , water level being the $y$ and time being the $x$ since we're looking for the answer in ft/hr-- you can choose any two, but from the same row.

$m= \frac{ 30-50}{4-0}$
$m= \frac{-20}{4}$
$m= \frac{-5}{1}$
$m= -5$ ft/hr

4 0

3 years ago

Billy wants to find out which cafeteria food is the favorite in his school for students. He surveys 100 students. 29 students se

Pani-rosa [81]

9/25 it’s simplified

6 0

2 years ago

Read 2 more answers