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Gnesinka [82]
3 years ago
5

PLEASE HELP I DON'T KNOW HOW TO SOLVE THIS.

Mathematics
3 answers:
kiruha [24]3 years ago
8 0
<h3><u>Explanation</u></h3>
  • Find the domain.

To find the domain from the graph, you have to focus only x-axis because domain is the set of x-value.

From the graph, we can see that domain starts at x = 0 and keeps going and going positive infinitely. That means the domain must be greater or equal to 0.

Here is an easier way to understand

\large \boxed{ \sf{left/start}} \Longrightarrow \large \boxed{ \sf{right/end}}

\large \sf{left =  0} \\   \large \sf{right =  +  \infin}

And if we combine both, we get

0 \leqslant x \leqslant  +  \infin

But we don't usually write positive infinity, therefore we convert to

0 \leqslant x  \longrightarrow x \geqslant 0 \\ x \geqslant 0

<h3><u>Answer</u></h3>

<u>x \geqslant 0</u>

<em>If</em><em> </em><em>you</em><em> </em><em>have</em><em> </em><em>any</em><em> </em><em>questions</em><em> </em><em>related</em><em> </em><em>to</em><em> </em><em>this</em><em> </em><em>answer</em><em>,</em><em> </em><em>feel</em><em> </em><em>free</em><em> </em><em>to</em><em> </em><em>ask</em><em> </em><em>in</em><em> </em><em>comment</em><em>.</em><em> </em>

Anna71 [15]3 years ago
4 0
<h3><u>Explanation</u></h3>
  • Find the domain.

To find the domain from the graph, you have to focus only x-axis because domain is the set of x-value.

From the graph, we can see that domain starts at x = 0 and keeps going and going positive infinitely. That means the domain must be greater or equal to 0.

Here is an easier way to understand

\large \boxed{ \sf{left/start}} \Longrightarrow \large \boxed{ \sf{right/end}}

\large \sf{left =  0} \\   \large \sf{right =  +  \infin}

And if we combine both, we get

0 \leqslant x \leqslant  +  \infin

But we don't usually write positive infinity, therefore we convert to

0 \leqslant x  \longrightarrow x \geqslant 0 \\ x \geqslant 0

<h3><u>Answer</u></h3>

<u>x \geqslant 0</u>

<em>If</em><em> </em><em>you</em><em> </em><em>have</em><em> </em><em>any</em><em> </em><em>questions</em><em> </em><em>related</em><em> </em><em>to</em><em> </em><em>this</em><em> </em><em>answer</em><em>,</em><em> </em><em>feel</em><em> </em><em>free</em><em> </em><em>to</em><em> </em><em>ask</em><em> </em><em>in</em><em> </em><em>comment</em><em>.</em><em> </em>

just olya [345]3 years ago
3 0

Answer: b

Step-by-step explanation:

X is defined for all numbers on the domain starting at x=0. It doesn’t show or mention a cutoff/equation in the picture so it’s safe to assume it continues forever

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In order to use a ladder safely, the angle that the ladder forms with the ground should not exceed 70 degree. If you have a ladd
solong [7]

Answer:

Maximum safe height can be reached by ladder = 15.03. ft

Step-by-step explanation:

Given,

Let's assume the maximum safe height of wall = h

angle formed between ladder and ground = 70°

length of ladder = 16 ft

From the given data, it can be seen that ladder will form a right angle triangle structure with the wall

So,from the concept of trigonometry,

Sin70^o\ =\ \dfrac{\textrm{maximum safe height of wall}}{\textrm{length of ladder}}

=>Sin70^o\ =\ \dfrac{h}{16\ ft}

=>\ h\ =\ 16\times Sin70^o

=> h = 16 x 0.9396

=> h = 15.03 ft

So, the maximum safe height that can be reached by the ladder will be 15.03 ft.

8 0
3 years ago
An observer stands 25 feet from the base of a flagpole and watches a flag being lowered at a rate of 5 ft/sec. Determine the rat
Sedaia [141]

Answer:

0.1 rad/s

Step-by-step explanation:

Since the distance from or to the flagpole is not given, I will assume. And my assumption is 50 ft

Now, the elevation angle A = 45 degrees, converting to radians, we have π/4 radians

Remember that the tan of an angle is OPP/HYP, and so

tan A = h/25, on differentiating, we have

d tan A/dA = sec^2 A = (1/25) dh/dA

Next, we have

25 sec^2 A * dA/dt= dh/dt = 5

Making dA/dt the subject of formula, we have

dA/dt = (1/5) cos^2 A

but cos^2 A from trigonometry = 1/2, this means that

dA/dt = .1 radians/second

If you want to convert to degrees, your have

.1 Rad/s( 180 deg/rad) = 18 degrees/second

3 0
3 years ago
5x-9y=17 solve for y
Tresset [83]

Answer: y=17-5x/-9

Step-by-step explanation: 5x-9y=17

-9y=17-5x

Y=17-5x/-9

You can’t go any further than that because you can’t combine unlike Terms on the right side of the equation.

6 0
3 years ago
How do you tell a triangle is not a right triangle
garri49 [273]
You can tell when you cant draw an even L shaped figure at the intersects of the bottom and the side. 90 degrees. But there are many different ways that may make more sense. Happy to help:)
7 0
3 years ago
Read 2 more answers
How to find the volume of a cone with its base in algebra​
marin [14]

Answer:

V=pi r² h/3

Step-by-step explanation:

V=volume

R=radius

H=height

7 0
3 years ago
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