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Fiesta28 [93]
3 years ago
11

What graph shows f(x) =

alt="\sqrt{x} - 3" align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
Molodets [167]3 years ago
8 0

Answer:

x

≥

3

or

in interval notation

[

3

,

∞

)

Step-by-step explanation:

Given:

F

(

x

)

=

√

x

−

3

A function starts out having a domain of all Reals

(

−

∞

,

∞

)

A square root limits the function because you can't have negative numbers under the square root (they are called imaginary numbers).

This means

x

−

3

≥

0

Simplifying:

x

≥

3

hope it helps

please mark brainliest

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A row team paddles 30 miles upstream in 2 hours and 30 miles downstream in 45 minutes. How fast can the row team paddle in still
sp2606 [1]

Answer:

Rate in still water = 27.5 mph

Current's rate = 12.5 mph

Step-by-step explanation:

Let

x mph = row team rate in still water

y mph = current's rate

<u>Upstream:</u>

Distance = 30 miles

Time = 2 hours

Rate = x - y mph

Then

30=2(x-y)

<u>Downstream:</u>

Distance = 30 miles

Time = 45 minutes =\dfrac{3}{4} hour

Rate = x + y mph

Then

30=\dfrac{3}{4}(x+y)

From the first equation:

30=2(x-y)\Rightarrow 15=x-y

From the second equation:

30=\dfrac{3}{4}(x+y)\Rightarrow 40=x+y

Add these two equations:

15+40=x-y+x+y\\ \\2x=55\\ \\x=27.5\ mph

Subtract these two equations:

40-15=x+y-(x-y)\\ \\25=x+y-x+y\\ \\2y=25\\ \\y=12.5\ mph

8 0
4 years ago
Order the following from least to greatest: 37, -9, -14, 34, -47, -18, 26
Evgesh-ka [11]
-47, -18, -14, -9, 26, 34, 37
8 0
3 years ago
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hodyreva [135]

Answer:

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4 0
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Read 2 more answers
Find x and y in the diagram. justify your answer
lord [1]
Set x to 0 to find the y value or set y to 0 to find the x value
5 0
4 years ago
Helpp meeee i don't understand constant of proportionality (don't put pictures i can't see).
Vikentia [17]

Answer:

A) 1/5

Step-by-step explanation:

Points on the graph: (10, 2) and (20, 4)

Slope:

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8 0
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