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3 years ago

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This year, lashonda watched 85 movies. She thought that 34 of them were very good. If the movies she watched, what percentage di

d she think were very good

1 answer:

Dovator [93]3 years ago

6 0

Answer:

40 percentage

Step-by-step explanation:

sana makatulong I'm not sure

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Which algebraic expression is represented by the model?

bogdanovich [222]

Answer:

Contributing

Step-by-step explanation:

Just contribute the number that is not is the column to the number that is in the column

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3 years ago

What is 18 divided by 11

schepotkina [342]

1.63636363636363636363636363636.........

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3 years ago

2x+5=11 two step equations<br>

Sati [7]

Answer:

x=3

Explanation: 11-5=6

6/2= 3

Plug 3 into the equation and you get 2x3+5=11 which 2x3=6 and 6+5=11

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3 years ago

A superhero is trying to leap over a tall building. The function f(x)=-16x^2+200x gives the superhero's height in feet as a func

Gemiola [76]

Answer:

Since $\bigtriangleup \geq 0$ , the superhero makes it over the building.

Step-by-step explanation:

The height is given by the following function:

$f(x) = -16x^{2} + 200x$

Will the superhero make it over the building?

We have to find if there is values of x for which f(x) = 612.

Solving a quadratic equation:

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:

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

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

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

If $\bigtriangleup < 0$ , the polynomial has no solutions.

In this question:

$f(x) = -16x^{2} + 200x$

$-16x^{2} + 200x = 612$

$16x^{2} - 200x + 612 = 0$

We have to find $\bigtriangleup$

We have that $a = 16, b = -200, c = 612$ . So

$\bigtriangleup = (-200)^{2} - 4*16*612 = 832$

Since $\bigtriangleup \geq 0$ , the superhero makes it over the building.

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3 years ago

Guests at a campground can stay in a teepee

OleMash [197]

Answer:900ft

Step-by-step explanation: v=l×w×h/3 =15×10×18/3=900

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3 years ago