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3 years ago

9

A riding lawnmower can drive up a 27º incline. in order for a ramp designed to reach a truck bed that is 3 feet above the ground

to have a 27º incline, how long should the ramp be?

1 answer:

CaHeK987 [17]3 years ago

7 0

I think the answer is 9 feet!

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What number completes the sequence below?

mel-nik [20]

Answer:

39

Step-by-step explanation:

7 0

3 years ago

Please help me with 2b ASAP. <br> Really appreciate it!!

Bogdan [553]

$f(x)=\dfrac{x^2}{x^2+k^2}$

By definition of the derivative,

$f'(x)=\displaystyle\lim_{h\to0}\frac{\frac{(x+h)^2}{(x+h)^2+k^2}-\frac{x^2}{x^2+k^2}}h$

$f'(x)=\displaystyle\lim_{h\to0}\frac{(x+h)^2(x^2+k^2)-x^2((x+h)^2+k^2)}{h(x^2+k^2)((x+h)^2+k^2)}$

$f'(x)=\dfrac{k^2}{x^2+k^2}\displaystyle\lim_{h\to0}\frac{(x+h)^2-x^2}{h((x+h)^2+k^2)}$

$f'(x)=\dfrac{k^2}{x^2+k^2}\displaystyle\lim_{h\to0}\frac{2xh+h^2}{h((x+h)^2+k^2)}$

$f'(x)=\dfrac{k^2}{x^2+k^2}\displaystyle\lim_{h\to0}\frac{2x+h}{(x+h)^2+k^2}$

$f'(x)=\dfrac{2xk^2}{(x^2+k^2)^2}$

$\dfrac{k^2}{(x^2+k^2)^2}$ is positive for all values of $x$ and $k$ . As pointed out, $x\ge0$ , so $f'(x)\ge0$ for all $x\ge0$ . This means the proportion of occupied binding sites is an increasing function of the concentration of oxygen, meaning the presence of more oxygen is consistent with greater availability of binding sites. (The question says as much in the second sentence.)

7 0

3 years ago

I need help please!!!!

ycow [4]

Answer:

x = 14.48

Step-by-step explanation:

first we have to see that we have the measurements from all sides

and we know that the angle between side 21 and 20 is 90 degrees

well to start we have to know the relationships between angles, legs and the hypotenuse.

a: adjacent

o: opposite

h: hypotenuse

sin α = o/h

cos α= a/h

tan α = o/a

let's take the left angle as α

sin α = 21/29

α = sin^-1 (21/29)

α = sin^-1 (0.7241)

α = 46.397

Now we do the same with the smaller triangle

tan α = o/a

sin 46.397 = x/20

0.724 = x/20

0.724 * 20 = x

14.48 = x

x = 14.48

if we want to check it we can do the same procedure with the other angle

4 0

3 years ago

HELPPPP ITS DUE SOON!!! ILL GIVE BRAINLIEST I PROMISE

Troyanec [42]

Answer: thanks for the points! i know the answer

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

At the bowling alley, Ethans family spent $4 to rent shoes plus $8 for each game that they bowled. If they spent $36 total, how

stellarik [79]

Answer:

<h2>4</h2>

Step-by-step explanation:

the equation is

36 = 4+8x

when you solve for x the answer is 4

7 0

3 years ago