F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? Why or why not?

Answers

Answer 1

[tex](g\cdot f)(x)=\dfrac{1}{x}-4[/tex]

[tex]D_{g(f(x))}:x\not =0[/tex]

No, since 0 doesn't belong to the domain.


Related Questions

Which figure shows an example of symmetry?

Answers

It would be option B because you could fold the two shapes and it would be equal

The figure in option B shows an example of symmetry. As we know that symmetry is when the objects on either the line of the axis are reflecting each other.

Symmetry:

A figure is said to be in symmetry if a line can be drawn through it then the parts on either side of the line are a reflection of each other.

The line drawn between them is said to be the axis of symmetry or line of symmetry.

In the given figure,

Option (A) - the parts on either side of the line of symmetry are not reflecting each other

Option (B) - the parts on either side of the line of symmetry are reflecting each other, so they are in symmetry

Option (C) - the parts on either side of the line of symmetry are not reflecting each other

Option (D) - the parts on either side of the line of symmetry are not reflecting each other

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why are units of measure important when solving real-word problems?

Answers

Answer:

In physics, we always measure quantities and compare them with a standard. That standard defines a unit of the quantity. Suppose you want to measure the length of a car, so you use a meter stick, which is the standard for measuring distances. Then, why are units of measure important when solving real-world problems? Well, because when solving problems that involve equations, they need to be dimensionally consistent, but what does it mean? it means that you can't add two terms having different units. For instance, you can't add apples with tables!

what is 0.8637 rounded to the nearest hundredth​

Answers

Answer:

0.86

Step-by-step explanation:

The hundredths place is the second digit after the decimal point.  It is the 6 in this case.

Since the next digit (3) is 4 or less, the hundredths place stays the same and the rest is basically just cut off, leaving 0.86.

If the next digit (3) were 5 or more, the hundredths place would have gone up 1 (to 7) and the rest would have been cut off, giving a final result of 0.87

The decimal numeral system is the most widely used system for representing both integer and non-integer values. When 0.8637 is rounded to the nearest hundredth​ the number will be 0.86.

What is a decimal number?

The decimal numeral system is the most widely used system for representing both integer and non-integer values. It is Hindu–Arabic numeral system's expansion to non-integer numbers. Decimal notation is the method of representing numbers in the decimal system.

A decimal number is rounded off based on its preceding number if the preceding number is greater than 5 then the number is rounded off to the next number, but if it's not, then the number is left in the same way.

Therefore, when 0.8637 is rounded to the nearest hundredth​ the number will become,

0.8637 ≈ 0.86

Hence, when 0.86 is rounded to the nearest hundredth​ the number will be 0.86.

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work out the area of the circle.

Answers

Step-by-step explanation:

the circle ends(??) touches the square, so:

16 cm= diameter of the circle

area formula: (pi)r²

pi used= 22/7

16/2= 8 (radius)

22/7 x 8²

=201.143 cm2

The height of a triangle is 5 m less than its base. The area of the triangle is 42 m². Find the length of the base.
7m
8 m
11 m
12 m

Answers

Answer

D, 12m

Step-by-step explanation:

Answer:

12 m

Step-by-step explanation:

Area of a triangle is:

A = ½ bh

Given that h = b - 5 and A = 42:

42 = ½ b (b - 5)

84 = b² - 5b

0 = b² - 5b - 84

0 = (b + 7) (b - 12)

b = -7, 12

The length of the base can't be negative, so b = 12 m.

Jireh flew his crop duster from the ground to an altitude of 3,500 feet. He continued to fly at that height for 20 minutes until he descended to 2,000 feet. He then flew back to the ground and landed his plane.

Which part of the scenario would be best represented by a linear increasing interval?

Jireh flew his crop duster from the ground to an altitude of 3,500 feet.
Jireh flew at 3,500 feet for 20 minutes.
Jireh descended to 2,000 feet.
Jireh landed his plane.

Answers

Increasing means the plane was rising.

The linear increasing interval would be:

Jireh flew his crop duster from the ground to an altitude of 3,500 feet.

True or false? V(x) is a function

Answers

 

Yes it is true, V(x) is a function.Correct answer:  A.  True
Final answer:

In mathematics, notation like V(x) generally represents a function. Whether it is indeed a function depends on its definition and if every input x corresponds to exactly one output.

Explanation:

In mathematics, V(x) can indeed be a function. The notation V(x) generally represents a function named 'V' that takes an input 'x'. Whether it represents a function in a particular context depends on how it is defined. For a relationship to be a function, every input x must correspond to exactly one output in the function V. For instance, if V(x) is defined as x², then it IS a function, because each input x yields a specific output, which is the square of x.

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Which of the following is equivalent to the radical expression below when
X>0?

Answers

For this case we must simplify the following expression:

[tex]\frac {\sqrt {10x ^ 3}} {\sqrt {5x}}[/tex]

We combine the expression in a single radical:

[tex]\sqrt {\frac {10x ^ 3} {5x}} =[/tex]

We eliminate common factors of the numerator and denominator:

[tex]\sqrt {\frac {2x ^ 3} {x}} =\\\sqrt {2x ^ 2} =[/tex]

By definition of power properties we have to:

[tex]\sqrt [n] {a ^ m} = a ^ {\frac {m} {n}}[/tex]

So:

[tex]\sqrt {2x ^ 2} = x \sqrt {2}[/tex]

Answer:

Option A

Select the point that is a solution to the system of inequalities. yx^2-4


A. (1,2)


B. (-2,-4)


C. (4,0)


D. (0,4)

Answers

Answer:

A. (1,2)

Step-by-step explanation:

A solution to the system of inequalities lies beyond the boundary line where the inequality is satisfied.

Hence let us assume that (yx)^2 - 4 = 0

We tried all the ordered pairs but the right answer was given by A. (1,2)

putting x = 1 and y = 2 in the expression:

(1*2)^2 - 4 = 0

0 = 0 which is true.

Answer:

A. (1,2)

Step-by-step explanation:

given u=(5,-2,3) and v=(1,1,2) find ordered triple that represents 3u-2v

Answers

Answer:

(13, -8, 5)

Step-by-step explanation:

Given

[tex]u = (5,-2,3)\\and\\v = (1,1,2)[/tex]

We have to find 3u-2v

So,

[tex]3u = 3(5,-2,3)\\3u= (15,-6,9)\\\\And\\\\2v= 2(1,1,2)\\2v= (2,2,4)\\\\3u-2v = (15,-6,9) - (2,2,4)\\= (15-2, -6-2 , 9-4)\\= (13, -8, 5)[/tex]

The ordered triple that represents 3u-2v is:

(13, -8, 5) ..

Answer:

C on edge

Step-by-step explanation:

Did the practice :)

PLEASE HELP!!!!!!

Type the correct answer in each box.

The graph that correctly represents the inequality 2x > 50 is graph
. The graph that correctly represents the inequality x + 6 < 32 is graph

Answers

Answer:

See below,

Step-by-step explanation:

2x > 50

Dividing both sides by 2:

x > 25 which is Graph C  (because the red line is to the right of 25).

x + 6 < 32

x < 32 - 6

x < 26  which is Graph B .

Answer with explanation:

Ques 1)

The first inequality is given by:

                  [tex]2x>50[/tex]

on dividing both side of the inequality by 2 we obtain:

               [tex]x>25[/tex]

i.e. the solution set is the set of all the real values which are strictly greater than 25.

i.e. the shaded region is to the tight of 25 and there will be a open circle at 25 (Since the inequality is strict inequality )

i.e. the solution set is: (25,∞)

Hence, the graph which represents the inequality 2x>50 is: Graph C.

Ques 2)

The second inequality is given by:

             [tex]x+6<32[/tex]

on subtracting both side of the inequality by 6 we get:

                 [tex]x+6-6<32-6\\\\i.e.\\\\x+0<26\\\\i.e.\\\\x<26[/tex]

This means that the solution set is the set of all the real values which are strictly less than 26.

i.e. the shaded region is to the left of 26 and there will be a open circle at 26 ( since the inequality is strict)

i.e. the solution set is: (-∞,26)

The graph which represents the inequality x+6<32 is:  Graph B

The Martin's swimming pool is a square and is in the center of a square plot that is 35 meters on a side. They have 1,104 square meters of lawn. How long is a side of the pool?​

Answers

Answer:

side of the pool = 11 m

Step-by-step explanation:

Square Plot:

side = 35 m

Area = 35 * 35 = 1225 sq.m

Area of  lawn = 1104 sq.m

Swimming pool:

Area of the Swimming pool = 1225 - 1104 = 121 sq.m

 side * side = 121 = 11 * 11

side = √11 * 11

side of the pool = 11 m

Find S16 for 1 + 7 + 13 + 19 +

Answers

Final answer:

To find the sum of the first 16 terms of the arithmetic series with a common difference of 6, use the sum formula for an arithmetic series S_n = (n/2) * (2a_1 + (n - 1)*d). By plugging in the values n = 16, a_1 = 1, and d = 6, the sum S_16 is calculated to be 736.

Explanation:

The student has presented an arithmetic series and is asking to find the sum of the first 16 terms (S16). In an arithmetic series, each term increases by a constant difference. The given sequence is 1, 7, 13, 19, and so on, showing a common difference (d) of 6.

Steps to find S16:

Identify the first term (a1) which is 1.

Determine the common difference (d), which is 6 in this case.

Use the formula for the sum of the first n terms of an arithmetic series Sn = (n/2) * (2a1 + (n - 1)*d), where n is the number of terms.

Substitute n = 16, a1 = 1, and d = 6 into the formula and calculate S16.

Now let's calculate S16:

S16 = (16/2) * (2*1 + (16 - 1)*6) = 8 * (2 + 15*6) = 8 * (2 + 90) = 8 * 92 = 736

The sum of the first 16 terms of the given arithmetic series is 736.

find the 9th term of the geometric sequence: 3, -6, 12, -24.....​

Answers

Answer:

768

Step-by-step explanation:

3 x (-2^8) = 768

Name the property the equation illustrates 7+(4+4)=(7+4)+4

Answers

the associative property of addition. Try and memorize the different properties. youll need to know them later on. I hope this helped!

Simplify 5^-4 over 5^3

Answers

Answer:

5^-7

Step-by-step explanation:

5^-4 over 5^3   : 5^-4/ 5^3 = 5^-4 × 5^-3 = 5^-7

I need help on solving these types of geometry problems! Teacher said the answer is 7 but I have to show work. Thank you!

Answers

The vertex where the two triangles touch forms a pair of vertical angles, so that the angles on opposites sides of the vertex are congruent. You're shown that two legs of both triangles are congruent. All this tells you that the two triangles are isosceles, and furthermore that they are similar because of the congruence of their "base" angles.

This means

[tex]82^\circ=m\angle 2[/tex]

[tex]\implies82=10x+12[/tex]

[tex]\implies10x=70[/tex]

[tex]\implies\boxed{x=7}[/tex]

Identify the constant in the expression helppppp

Answers

For this case we have that by definition, a quadratic expression is of the form:

[tex]ax ^ 2 + bx + c[/tex]

Where "c" represents the constant term.

Then, given the following expression:

[tex]4h ^ 7- \frac {h} {3} + \frac {1} {2}[/tex]

The constant term is given by:

[tex]\frac {1} {2}[/tex]

Answer:

Option D

A water jug is in the shape of a prism. The area of the base is 100 square inches and the height is 20 inches. How many gallons of water will the water jug hold? (1 gal= 231 inches squared) Round your answer to the nearest tenth.​

Answers

Answer:

[tex]\boxed{\text{8.7 gal}}[/tex]

Step-by-step explanation:

The volume V of a prism is the area of the base b times the height h.

V=bh

Step 1. Calculate the volume of the prism.

Data:

b = 100 in²

h = 20 in

Calculation:

V = 100 in² × 20 in =2000 in³

Step 2. Convert cubic inches to gallons

1 gal = 231 in³

[tex]V = \text{2000 in}^{3} \times \dfrac{\text{1 gal}}{\text{231 in}^{3}}} = \textbf{8.7 gal}\\\\\text{The water jug will hold } \boxed{\textbf{8.7 gal}}[/tex]

Answer:

8.7gal

Step-by-step explanation

I uhm need points please

The quotient of a number and 18 is 5 find the number

Answers

Answer:

90

Step-by-step explanation:

x/18=5

x=18*5

=90

Answer:

90

Step-by-step explanation:

Quotient means division

Is means equals

Let n = number

n/18 = 5

Multiply each side by 18

n/18 * 18 = 5*18

n = 90

The number is 90

A parallelogram has two side lengths of 5 units. Three of its sides have equations y = 0, y = 2, y = 2x. Find the equation of the fourth side.

Answers

Answer:

2

Step-by-step explanation:

The equation of the fourth side of the considered parallelogram is y = 2x + 10

How are parallel straight lines related?

Parallel lines have same slope, since slope is like measure of steepness and since parallel lines are of same steepness, thus, are of same slope.

Since given parallel line has equation [tex]y = 2x + 2[/tex], thus its slope is 2 and thus, the slope of the needed line is 2 too.

How to get the slope intercept form of a straight line equation?

If the slope of a line is m and the y-intercept is c, then the equation of that straight line is given as:

y = mx + c

To find the slope of a line, we find the rate at which the value of 'y' is increasing as we increase the value of 'x' by one unit.

A parallelogram is a four sided polygon, whose opposite sides are parallel to each other.

The slopes of y = 0 and y = 2 is same. (being 0)

Therefore the fourth side would've same slope as that of y = 2x.

The slope of y = 2x is 2 (the coefficient of x)

Thus, the equation of fourth side would be:

y = 2x + c for some real number c

Let we find the coordinates of four vertices. These are intersections of the equations of the adjacent sides.

Intersection of y = 0:

Case 1: with y = 2x:

Putting y = 0 gives 0 = 2x, or x = 0

Thus, the intersection is on (0,0)

Case 2: with y = 2x + c:

Putting y = 0 gives 0 = 2x + c, or x = -c/2

Thus, the intersection is on (-c/2, 0)

Intersection of y = 2:

Case 1: with y = 2x:

Putting y = 2 gives 2 = 2x, or x = 1
Thus, the intersection is on (1,2)

Case 2: with y = 2x + c:

Putting y = 2 gives 2 = 2x + c, or x = (2-c)/2

Thus, the intersection is on ((2-c)/2, 2)

Thus, the four vertices' coordinates are:

(0,0), (1,2), (-c/2, 0), and ( (2-c)/2, 0)

Let we name these points, as:

A(0,0), B(-c/2, 0),  C( (2-c)/2, 2) and D(1,2),

AB is line y = 0 (known from the y-coordinates of A and B)

Similarly, CD is line y = 2 (known from the y-coordinates of C and D)

AD and BC are parallel. (these are going to be other pair of parallel sides).

The length of AD is:

[tex]\sqrt{(1-0)^2 + (2-0)^2} = \sqrt{5} \: \rm units[/tex]

A parallelogram has its parallel sides of equal length.

Thus, length of BC is of √5 units too.

Since this parallelogram has two side lengths of 5 units, adn as AD and BC are not those sides, so we must have:

|AB| = |CD| = 5 units.

Length of AB is:

[tex]|AB| = \sqrt{(-c/2 - 0)^2 + (0 - 0)^2 } = c/2 = 5\\c = 10[/tex]

Thus, the equation of the fourth line is:

[tex]y = 2x + 10[/tex]

The graph of the considered parallelogram is given below.

Thus, the equation of the fourth side of the considered parallelogram is y = 2x + 10

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What is the quotient of the polynomials shown below?
(12x^3+14x^2 +9)÷(2x+3)

Answers

Answer:

Option D is correct.

Step-by-step explanation:

We need to find the quotient of the polynomials:

[tex](12x^3+14x^2 +9)\div(2x+3)\\[/tex]

The division is shown in the figure attached.

The quotient is: 6x^2-2x+3

The remainder is: 0

So, Option D is correct.

Multiply (3x^2-4x+5)(x^2-3x+2)

Answers

Answer: 3x4 - 13x3 + 28x2 - 23x + 10

Step-by-step explanation:

(3x2 - 4x + 5)(x2 - 3x + 2)

(3x4 - 9x3 + 6x2)

+       (-4x3 + 12x2 - 8x)

                    (10x2 - 15x + 10)

3x4 - 13x3 + 28x2 - 23x + 10

Answer: 3x^4 - 13x^3 + 23x^2 -23x + 10

For me at least

Step-by-step explanation: Good luck! :)

Coach Kelly documented the number of points the Ragin' Cajun football team scored each game this season. The following histogram summarizes the data.

Based on this data. what is a reasonable estimate of the probability that the Ragin' Cajun score 30 or more points in their next football game?
CHOOSE 1 ANSWER:

A.) 5/16

B.) 3/11

C.) 3/16

D.) 5/11​

Answers

The reasonable estimate of the probability is option A.

Calculation of the probability:

We know that

Probability = Number of favorable outcomes ÷ Total no of outcomes

So,

Here the number of favorable outcomes should be

= 3 + 2

= 5

And, the total no of outcomes should be

= 2 + 4 + 5 +  3 + 2

= 16

Therefore, option A is correct.

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the area of the rectangle is 55 square feet. if its width is 3 1/7 feet, find its length ​

Answers

Answer: 17.49 = L  or  17 1/2 = L

Step-by-step explanation:

a = L x W

55 = L x 3 1/7

55 ÷ 3 1/7   3 1/7 ÷ 3 1/7

17.49 = L

     or

17 1/2 = L

(pls mark me brainliest)

(theres a button that says mark brainliest on my answer)

To find the length of a rectangle with an area of 55 square feet and a width of 3 1/7 feet, you divide the area by the width after converting the mixed number to an improper fraction. Length = 55 / (22/7), which simplifies to 17.5 feet.

To find the length of the rectangle when the area is 55 square feet and the width is 3 1/7 feet, you can use the formula for the area of a rectangle, which is Area = Length × Width. You will first need to convert the width to an improper fraction, where 3 1/7 feet is 22/7 feet. Then, use the area to find the length:

Area = Length × Width

55 = Length × (22/7)

To find the Length, divide both sides by the width: Length = 55 / (22/7)

Multiply by the reciprocal of the width: Length = 55 × (7/22)

Simplify to find the Length: Length = 55/22 × 7

Length = 2.5 × 7

Length = 17.5 feet

Therefore, the length of the rectangle is 17.5 feet.

If f(x) = x + 4 and g(x) = x2-1, what is (gºf)(x)?

Answers

Answer:

[tex](x+4)^2-1[/tex]

Step-by-step explanation:

We need to evaluate gOf. This basically means that we substitute the value of f(x) (i.e.; x+4) into g(x) in place of x.

[tex]g(x)=x^2-1\\f(x)=x+4\\\therefore gof(x) = g(f(x))=g(x+4)=(x+4)^2-1[/tex]


Given that, A = {1,2,3,4,5,7} and B = {3,4,8,9} , find
in AB
ii. The number of elements in (AUB)​

Answers

Answer:

8

Step-by-step explanation:

The union of the 2 sets are the elements in set A and B

A = { 1, 2, 3, 4, 5, 7 } and B = {3, 4, 8, 9 }

A ∪ B = { 1, 2, 3, 4, 5, 7, 8, 9 }

Note 3 and 4 are not repeated

number of elements in A ∪ B  = 8

Which equation involves a prime quadratic and cannot be solved by factoring? A. x2 + 5x − 4 = 0 B. x2 − x − 6 = 0 C. x2 + 3x − 4 = 0 D. x2 + 6x + 9 = 0 Reset

Answers

Answer:

Option A

Step-by-step explanation:

We can try to factorize all the options one by one.

For A:

[tex]x^{2} +5x-4\\=> x^{2}+4x+x-4\\=>x(x+4)+1(x-4)[/tex]

We can see that the quadratic expression cannot be solved by factorization as the factors at the end of factorization are not equal in both brackets. So Option A is the correct answer for the given question.

Moreover we can also note that all the other quadratic expressions can be factorized ..

Answer:

x2 + 5x − 4 = 0

Step-by-step explanation:

What are the steps to solving the inequality 3b + 8 ≥ 14?


Answers

The steps to solve the inequality 3b + 8 ≥ 14 involve subtracting 8, then dividing by 3 to find b ≥ 2.

To solve the inequality 3b + 8 ≥ 14:

Subtract 8 from both sides: 3b + 8 - 8 ≥ 14 - 8, which simplifies to 3b ≥ 6.

Divide by 3 to isolate b: 3b/3 ≥ 6/3, giving you b ≥ 2.

Therefore, the solution to the inequality is b ≥ 2, indicating that b must be greater than or equal to 2.

Multiply each equation by a number that produces opposite
coefficients for x or y.
4x + 5y = 7
3x-2y=-12

Answers

Answer:

Step-by-step explanation:

We could multiply the first equation by -3 and, separately, multiply the second equation by 4.  The result would be:

-12x - 15y = -21

12x  - 8y = -48

the x terms now cancel.  The result is:

- 15y = -21

- 8y = -48

----------------

-23y = -69, or y = 3.  If y = 3, then 3x - 2y = -12 becomes:

3x - 2(3) = -12, or

3x - 6 = -12, or    3x = -6, and so x = -2.

The solution is (-2, 3).

Answer:

In the slot for 4x + 5y = 7 is -3. Which makes -21.

In the slot for 3x-2y=-12 is 4. Which makes -48.

Step-by-step explanation:

When you add the -21 and -48 you get -69.

The solution is (-2, 3)

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A)to ensure that all people had an adequate income B)to prevent the rich from taking too much power C)to provide social control and conformity according to ones birth D)to draft a military capable of defending India from Mongol invasion Which of the following elements does Erica need to include in her essay. What is p(-2)? Rounded to the nearest tenth please:) Certain types of organisms such as fireflies and anglerfish can produce lightthrough chemical reactions in a process called bioluminescence.What kind of chemical reactions occur during bioluminescence?O A) exothermicOB) endothermicOC) recompositionOD) decomposition According to Mira Keller, "The death penalty is acruel and unjust form of punishment."How can you change this example to better follow the rules of quotations?A. Remove the parts of the quote that are subjectiveB. Add more information about the person quotedC. Use the part of the quote that supports the argumentD. Add a personal story in order to appeal to emotion 3 PointsWhich of these are associated with a sedentary lifestyle? Select the twocorrect answers.A. Physical fitnessB. Lack of energyC. Normal BMIOD. Increased risk of disease Compared with the executive and legislative branches How many variables are altered in a good experiment? A.1 B.0 C.2 D.3 The Big DigThe Big Dig (the Central Artery/Tunnel Project) has been complex and challenging. Located in Boston, Massachusetts, this tunnel is eight lanes wide and three-and-a-half miles long. What is most amazing about this tunnel is that it is constructed under a major highway and skyscrapers located in Bostons financial district.Construction crews used clamshell excavators during this dig. These machines carved narrow trenches, and then a special substance was pumped into the trench to keep the dirt from caving in. Finally, steel beams were lowered into the trench and concrete was pumped in.One problem that engineers faced while constructing the tunnel is the fact that the soil beneath Boston is extremely loose and soggy. Engineers solved this dilemma by freezing the soil and pumping very cold water into pipes beneath the city. To strengthen the soil even further, a special type of glue was injected into the ground to help with the consolidation of the soil.23Which phrase best defines the word excavator as used in the passage?A. a device used to measure underground temperaturesB. a device used to level uneven surfacesC. a device used to move heavy objectsD. a device used to dig holes