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Nutka1998 [239]
3 years ago
9

The domain for f(x) is all real numbers greater than or equal to ___ ?

Mathematics
2 answers:
Shkiper50 [21]3 years ago
7 0
You must set each part of the function equal to zero.

5√(x+2) = x is greater than or equal to -2

So the domain is greater than or equal to -2
g100num [7]3 years ago
7 0

Answer:

The domain of f(x) is all real numbers greater than or equal to <u>-2</u>

Step-by-step explanation:

We have been given that

f(x)=2(x)^2+5\sqrt{x+2}

Domain is the set of x values for which the function is defined.

The given function is the combination of a square and square root function.

Square function is defined for all real values. Whereas, the square root function is defined for only positive values.

Therefore, the function is defined when

x + 2\geq0

Subtract 2 to both sides

x\geq-2

Hence, the domain of f(x) is all real numbers greater than or equal to <u>-2</u>

You might be interested in
Find the surface area of the right triangular prism (above) using its net (below).
lakkis [162]

Answer:

144 units²

Step-by-step explanation:

The net of the right triangular prism consists of 3 rectangles and 2 equal triangles

Let's solve for the area of each:

✔️Area of rectangle 1 = L*W

L = 11

W = 3

Area of rectangle 1 = 11*3 = 33 units²

✔️Area of rectangle 2 = L*W

L = 11

W = 4

Area of rectangle 2 = 11*4 = 44 units²

✔️Area of rectangle 3 = L*W

L = 11

W = 5

Area of rectangle 3 = 11*5 = 55 units²

✔️Area of the two triangles = 2(½*base*height)

base = 4

height = 3

Area of the two traingles = 2(½*4*3)

= 12 units²

✔️Surface area of the right triangle = area of rectangle 1 + area of rectangle 2 + area of rectangle 3 + area of the two triangles

= 33 + 44 + 55 + 12

= 144 units²

7 0
2 years ago
I have 2 questions.
frosja888 [35]
I dont know the first answer but the 2nd is dad
6 0
3 years ago
Read 2 more answers
Make x the subject of the following: b = x - 5
nevsk [136]
B=x-5
To get x on its own you have to add 5 to both sides. This gives you:
b+5=x
or
x=b+5
8 0
3 years ago
the function graphed shows kyoko's typing speed in words per minute (wpm) x weeks after she began typing course. How many words
Alinara [238K]

Answer:

where is the graph once you upload it i will edit my answer

Step-by-step explanation:

4 0
3 years ago
Please help and explain how you got your answer
snow_lady [41]

Answer:

K = 3

Step-by-step explanation:

<em>-11.K </em><em>=</em><em> </em><em>-</em><em>3</em><em>3</em>

<em>K </em><em>=</em><em> </em><em>-</em><em>3</em><em>3</em><em>/</em><em>-</em><em>1</em><em>1</em>

<em>K </em><em>=</em><em> </em><em>3</em><em> </em>

<em>.</em>

<em>.</em>

<em>.</em>

<em>Hope </em><em>it </em><em>helps</em>

4 0
2 years ago
Read 2 more answers
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