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3 years ago

What is the domain of f(x) = 3√x

Mathematics

1 answer:

jenyasd209 [6]3 years ago

6 0

Answer:

[0, infinity)

Step-by-step explanation:

The square root is a function that is not defined for negative values, since they belong to another space, the complex space.

Having that in mind that means

x>=0

That's it

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1 3/4 miles in twenty minutes

nikitadnepr [17]

No instructions? I'll assume you want the unit rate.

4 miles in 36 minutes = 4/36 miles in 1 minute, or 1/9 mile in 1 minute.

1 3/4 mile in 20 minutes? Multiply both figures by 3:

7 miles in 60 minutes, or 7 miles in 1 hour, or 7 mph.

8 0

3 years ago

Evaluate the given expression if x = 25, y = 10, w = 11, and z = 18. (see the image)

hammer [34]

Answer:

Step-by-step explanation:

So we have the expression:

$(x-y)^2+10wz$

And we want to evaluate it when x=25, y=10, w=11, and z=18.

So, substitute these values for the variables:

$=(25-10)^2+10(11)(18)$

First, subtract within the parentheses:

$=(15)^2+10(11)(18)$

Square 15:

$=225+10(11)(18)$

Now, multiply the terms on the right. 10 times 11 is 110:

$=225+110(18)$

Multiply:

$=225+1980$

Finally, add:

$=2205$

So, our answer is D.

And we're done!

8 0

3 years ago

Read 2 more answers

Ax - b = c Solve for x

7nadin3 [17]

ax - b = c

add b to each side

ax-b +b = c+b

ax = c+b

divide by a

ax/a = (c+b)/a

x = (c+b)/a

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3 years ago

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I need 5 divisions with decimals

inessss [21]

5\4 4\7 what u mean that u need more

5 0

2 years ago

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The? ___________ is a value used in making a decision about the null hypothesis and is found by converting the sample statistic

maks197457 [2]

The test statistic is a value used in making a decision about the null hypothesis and is found by converting the sample statistic to a score with the assumption that the null hypothesis is true.

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3 years ago