Ask question

Ask question

All categories

3 years ago

11

The nieces is it a ladder to clean the outside of her second-story windows the lashes is it is 24 feet long and she puts the bas

e of the lead 13 feet away from the house in order to avoid her flower girl that's how high up the side of the house does the Ladder reach

1 answer:

kumpel [21]3 years ago

5 0

Answer: 20 feet

Step-by-step explanation:

in the attachment

You might be interested in

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.

7 0

3 years ago

Find f-1(x), if f(x) = 3x – 6. Justify your

Sergio039 [100]

Answer: 1/3 (x + 6)

Explanation: given f(x) = 3x - 6.
Let y = f(x) and so y = 3x - 6.
Trade places between x and y.
x = 3y - 6
Solve for y
x + 6 = 3y
y = x + 6/3
Now the new y is the inverse and so y = f-1(x)
f-1(x) = 1/3(x + 6)

4 0

2 years ago

Helppp Plssssss Asap!!<br><br>Thanks

sdas [7]

Answer:

Its B im pretty sure

Step-by-step explanation:

4 0

2 years ago

State if the given functions are inverses<br>NO LINKS!!!! Part 1

Dafna11 [192]

Step-by-step explanation:

3:

h(x)=(-3x-15)/5

let y=(-3x-15)/5

interchanging role of x &y

x=(-3y-15)/5

5x+15=-3y

y=-(5x+15)/3

h-1(x)=-(5x+15)/3

not

equal to f(x)=(-3x-6)/4

<u>G</u><u>i</u><u>v</u><u>e</u><u>n</u><u> </u><u>func</u>tion <u>are</u><u> </u><u>not</u><u> </u><u>function</u><u> </u><u>of</u><u> </u><u>each </u><u>other</u><u> </u><u>.</u>

4:

g(x)=2/3x-2/3

let

y=2/3(x-1)

interchanging role of x &y

x=2/3(y-1)

3/2x+1=y

g-1(x)=3/2x+1

not equal to f(x)=½x+1

<u>Given function are not function of each other .</u>

3 0

2 years ago

Read 2 more answers

If Margo has about 120,000 balloons to blow up for the fair, and she's already blown up 146, how many more balloons does she nee

Naddik [55]

Answer:

See explanation below

Step-by-step explanation:

Margo needs to blow up 119,854 balloons.

120,000 - 146 = 119,854

A marathon is 26 miles.

40 minutes is equivalent to 0.67 hours

(26 miles) / (0.67 hours) = 38.8 mph

7 0

2 years ago