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Lelu
1 month ago
5

Which statement is true about the function f(x)= StartRoot negative x EndRoot?

Mathematics
2 answers:
Leona [12.6K]1 month ago
8 0

Answer:

The correct statement is that the range of the function consists of all real numbers equal to or greater than zero.

Step-by-step explanation:

Leona [12.6K]1 month ago
4 0

Answer:

The domain includes all real numbers less than or equal to zero.

Step-by-step explanation:

Given the function:

f(x)=\sqrt{-x}

The radicand (expression under the square root) must be non-negative:

-x \geq 0

Solving for x:

Multiplying both sides by -1 reverses inequality:

x\leq 0

Thus, the domain is (-∞, 0].

All real numbers up to and including zero.

The function's range corresponds to [0, ∞).

f(x)\geq 0

Refer to the included diagram for clearer visualization.

All real numbers from zero upward.

Evaluating each statement:

Case 1) The domain is all real numbers.

This is incorrect because the domain is constrained to values less than or equal to zero.

Case 2) The range is all real numbers.

This is also false since the output values are zero or positive only.

Case 3) The domain consists of all real numbers less than or equal to zero.

This is correct.

Case 4) The range is all real numbers less than or equal to zero.

This is false as the range is from zero upwards.

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A rectangular prism must have a base with an area of no more than 27 square meters. The width of the base must be 9 meters less
Leona [12618]

Answer:

The upper limit for the height of the prism is 12\ m

Step-by-step explanation:

Let

x------> represent the height of the prism

It is known that

the area of the base of the prism must not exceed

A=L*W

A\leq 27\ m^{2}

thus

L*W\leq 27 -------> inequality A

W=x-9 ------> equation B

L=W+6 -----> equation C

Insert equation B into equation C

L=(x-9)+6

L=x-3 ------> equation D

Substituting equations B and D into inequality A

(x-3)*(x-9)\leq 27-------> using a graphing tool to solve the inequality

The resultant solution for x lies in the interval---------->[0,12]

consult the attached figure

but bear in mind that

The width of the base must be 9 meters shorter than the height of the prism

thus

the solution for x is confined to the interval ------> (9,12]

The maximum height of the prism equals 12\ m

8 1
1 month ago
Read 2 more answers
Right triangle XYZ has legs of length XY = 12 and YZ = 6. Point D is chosen at random within the triangle XYZ. What is the proba
Svet_ta [12734]

The "successful" area is half the size of the overall triangle, thus using the concept of similar triangles, the likelihood that the area of triangle XYD does not exceed 12 is 1/4.

8 0
17 days ago
Read 2 more answers
Assume that the flask shown in the diagram can be modeled as a combination of a sphere and a cylinder. Based on this assumption,
Svet_ta [12734]

Answer:

Here’s the response provided

Step-by-step explanation:

Referring to the flask diagram, the diameter of the cylinder measures 1 inch and its height (h) is 3 inches. Thus, the radius of the cylinder (r) = diameter / 2 = 1/2 = 0.5 inch

The volume of the cylinder can be calculated as πr²h = π(0.5)² × 3 = 2.36 in³

As for the sphere, its diameter is 4.5 in. Hence, the radius of the sphere R = diameter / 2 = 4.5/2 = 2.25 in

The volume of the sphere is calculated as 4/3 (πR³) = 4/3 × π × 2.25³ = 47.71 in³

The total volume of the flask = Volume of the cylinder  + Volume of the sphere = 2.36 + 47.71 = 50.07 in³

<pWhen the cylinder and the sphere are expanded by a scale factor of 2, the height (h') of the cylinder becomes 3/2 = 1.5 inches and the radius (r') becomes 0.5/2 = 0.025 inches.

The new volume for the cylinder = πr'²h' = π(0.25)² × 1.5 = 0.29 in³

For the sphere, the new radius is R' = 2.25 / 2 = 1.125 in.

The new volume of the sphere = 4/3 (πR'³) = 4/3 × π × 1.125³ = 5.96 in³

Thus, the new volume of the flask = The new volume of the cylinder  + The new volume of the sphere = 0.29 + 5.96 = 6.25 in³

<pThe ratio of the new volume to the original volume = New Volume of the flask / Volume of the flask = 6.25 / 50.07 = 1/8 = 0.125<pThe resulting volume will thus be 0.125 times the original volume

6 0
1 month ago
What is the midpoint of a line segment with the endpoints (-6, -3) and (9, -7)?
PIT_PIT [12445]
The midpoint of the line segment with endpoints (-6, -3) and (9, -7) is (1.5,-5).
5 0
1 month ago
Round off 17.2 to one significant figure
Leona [12618]
Rounding 17.2 to one significant figure gives you 17. This is because when the digit after the decimal point is below 5, you simply keep the number as is, but if it's 5 or above, you round up.
5 0
1 month ago
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