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2 years ago

Explain why x=4 is not in the domain of the function f(x)=√x-5 ?

Mathematics

1 answer:

lianna [129]2 years ago

6 0

Since we are dealing with a radical then x - 5 ≥ 0, for real values

x = 4 is less than 5 , hence is not in the domain

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A piece of wood is designed in the same of a cone.

77julia77 [94]

Answer:

See explanation

Step-by-step explanation:

Volume of cone - volume of cylinder

[1/3π(6)²(14)] - [π(4)²(3)]

168π - 48π = 120π

6 0

2 years ago

This seems easy but i’m not sure how to do it, anyone know the answer

Pie

The correct answer is C. 4π / 3
Hope this helps!

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2 years ago

Sekhar gives a quarter of his sweets to Renu and then gives 5 sweets to Raji. He has

Feliz [49]

Answer:

16 sweets

Step-by-step explanation:

Number of sweet that Sekhar had = x

Sweets given to Renu = (1/4) of x = $\frac{1}{4}x$

Sweets given to Raji = 5

Remaining sweets = 7

$x = \frac{1}{4}x +5 + 7\\\\x -\frac{1}{4}x = 12\\\\\frac{4*x}{1*4}x-\frac{1}{4}x = 12\\\\\frac{4x}{4}-\frac{1}{4}x= 12\\\\\frac{3x}{4}=12\\\\x = 12*\frac{4}{3}\\\\x=4*4\\\\x=16$

6 0

2 years ago

What is -3/4 – (-1/2)? A. -5/4 B. -1/4 C. 1/4 D. 1/2

Delicious77 [7]

Answer:

B. -1/4

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Is the relation a function? Why or why not? {(–3, –2), (–1, 0), (1, 0), (5, –2)}

tankabanditka [31]

Answer:

yes, the given relation is a function.

Step-by-step explanation:

The given relation is

{(–3, –2), (–1, 0), (1, 0), (5, –2)}

A relation is called function if each element of the domain is paired with exactly one element of the range.

It means for each value of x there exist a unique value of y.

In the given relation for each value of x there exist a unique value of y.

Therefore the required solution is yes and this relation is a function.

5 0

3 years ago