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alexira [117]
3 years ago
15

What are the domain and range of the real-valued function f(x)=2/3x?

Mathematics
1 answer:
Vedmedyk [2.9K]3 years ago
4 0

If your function is (as written) ...

... f(x) = (2/3)x

Then B is the correct answer.

_____

If your function is ...

... f(x) = 2/(3x)

Then A is the correct answer.

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Select the correct answer. A six-sided fair die and an eight-sided fair die are rolled together. What is the probability of gett
snow_tiger [21]

Answer:

18.

Step-by-step explanation:

Very Simple.

4 0
3 years ago
Help solving this math problem
daser333 [38]

Diagram of two triangles

The two triangles are similar because they are both right triangles, meaning that one angle is 90° and the other two are acute (less than 90°).

The diagram on the left is missing its hypotenuse - the variable <em>c</em><em>.</em><em> </em>The hypotenuse is opposite of the right angle. The diagram on the right side is missing one of its legs.

Note: The hypotenuse is the <em>longest</em><em> </em>side of a right triangle.

Word Problen

The legs are 21 blocks and 20 blocks because they are by the right angle. Use the Pythagorean theorem to find the diagonal path's length, which is the hypotenuse.

{a}^{2}  +  {b}^{2}  =  {c}^{2}

Standard form of Pythagorean theorem.

{21}^{2}  +  {20}^{2}  =  {c}^{2}

Equation with the legs substituted and the missing hypotenuse value - <em> </em><em>c</em><em>.</em>

841 =  {c}^{2}

Square the legs and add.

\sqrt{841}  = c

29 = c

Take the square root and simplify. The square root of 841 is 29 and -29, but distance is positive.

Thus the diagonal distance is 29 blocks.

Check by substituting.

5 0
3 years ago
27.) Find the sum of the length of line segments EF and CD
Lelechka [254]

Answer:

5√10

Step-by-step explanation:

The distance between two points A(x_1,y_1) and B(x_2,y_2) on the coordinate plane is given by:

|AB|=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2 }

From the image attached the coordinates of the points are E(-1, -1), F(8, -4), C(-7, -4) and D(-1, 2).

Hence the lengths of the line segment EF and CD are:

|EF|=\sqrt{(8-(-1))^2+(-4-(-1))^2} =\sqrt{90}=3\sqrt{10} \\\\CD=\sqrt{(-1-(-7))^2+(-2-(-4))^2}=\sqrt{40}  =2\sqrt{10} \\\\Therefore:\\\\|EF|+|CD|=3\sqrt{10} +2\sqrt{10} =5\sqrt{10}

6 0
3 years ago
Please help me find the answer
andreev551 [17]

Answer:

the angle is equal to 60 degree

3 0
2 years ago
Which is the product of 4/5 x3/7
Keith_Richards [23]

Answer:

12/35

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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