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sertanlavr [38]
3 years ago
15

What is the domain of the function y=sqrt x?

Mathematics
2 answers:
vova2212 [387]3 years ago
8 0
Square root is not defined to for negative values. For negative values, the answer of square root is a complex number which is not in Real Domain.

So any such values, for which the expression is not defined are not in the Domian. So the domian of square root of x will be All real numbers greater than or equal to 0. 

This can be expressed as:

[0 , ∞)
or
x ≥ 0
Yakvenalex [24]3 years ago
3 0
For this case we have the following function:
 y = sqrt x
 We must check the values of x for which the function is defined.
 We have then:
 x> 0
 Therefore, the domain of the function is given by:
 [0, inf)
 Answer:
 
[0, inf)
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in a xy-coordinate system line 1 has a slope of -3. If the points (2,16 and (5,t) are on line 1, what is the value of t?
Dimas [21]
We can use the formula y2-y1/x2-x1 to find our answer. So, we have : t-16/5-2 = -3. We simplify that to t-16/3 = -3. We can then multiply both sides by 3 to get t-16 = -9. Then we can add 16 to both sides to get t = 7.
8 0
3 years ago
Which of the following is equal to7 1/4?
Ivenika [448]

Answer:

B. \sqrt[4]{7}

{7}^{ \frac{1}{4} }  =  \sqrt[4]{7}

5 0
3 years ago
Read 2 more answers
2. Express each of the following as a rational number in the form of p/q<br> Where q≠0
ANTONII [103]

Step-by-step explanation:

We need to find each of the following as a rational number in the form of p/q

(a) (3/7)²    (b) (7/9)³  (c) (-2/3)⁴

Solution,

(a) (3/7)²

(\dfrac{3}{7})^2=\dfrac{9}{49}

(b) (7/9)³

(\dfrac{7}{9})^3=\dfrac{7\times 7\times 7}{9\times 9\times 9}\\\\=\dfrac{343}{729}

(c) (-2/3)⁴

(\dfrac{-2}{3})^4=\dfrac{-2\times -2\times -2\times -2}{3\times 3\times 3\times 3}\\\\=\dfrac{16}{81}

Hence, this is the required solution.

4 0
3 years ago
Can someone please help me with the last question?
Naya [18.7K]

Answer:

j

Step-by-step explanation:

6 0
3 years ago
Help plsssssss.................
Doss [256]

Answer:

B

Step-by-step explanation:

you do 0.74 + 0.18 and then subtract 0.8

4 0
3 years ago
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