Why is the answer correct?
​

[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.

Answer:

The area of the triangle is [tex]A=4\ units^{2}[/tex]

Step-by-step explanation:

Let

A(0, −2),B​ (0, −3) and ​ C(8, -3)

Plot the vertices

see the attached figure

Triangle ABC is a righ triangle

The area of the triangle ABC is equal to

[tex]A=\frac{1}{2}(BC)(AB)[/tex]

[tex]BC=8-0=8\ units[/tex]

[tex]AB=-2-(-3)=1\ units[/tex]

substitute

[tex]A=\frac{1}{2}(8)(1)[/tex]

[tex]A=4\ units^{2}[/tex]

Answer:

Step-by-step explanation:

It can't.

The answer is 60 with a remainder of 4

Answer:

x=-16

Step-by-step explanation:

The given equation is:

x = 8a

which was written to find the value of x.

We have to find the value of x when the value of a is inserted as -2

So, putting the value

x = 8(-2)

x= -16

So the value of x when a = -2 is -16 ..

Answer:

x= -16

Step-by-step explanation:

The rewritten equation for x from part A is x = 8a.

Substitute -2 for a in the equation and solve:

x = 8(-2)

x = -16

Easy ₛₕᵢₜ Yo

Answer:

Step-by-step explanation:

C.  878 and D.  1 are the only whole numbers.  The rest are either mixed numbers or fractions.

Answer:

1 and 4

Step-by-step explanation:

we know that

If two triangles are similar, then the ratio of its corresponding sides is proportional and its corresponding angles are congruent

In this problem

The corresponding angles of Triangle 1 and Triangle 4 are congruent

therefore

Both triangles are similar

Answer:

similar polygons are 1 and 4

Step-by-step explanation:

From the figure we can see some triangles and angles are given

Similar triangles means that the angles are same and their corresponding  sides are in proportion.

To find the correct answer

From the figure we get 1 and 2 are similar triangle, because angles of triangle 1 are 10°, 60° and 110°,

and angles of triangle 4 are 10°, 60° and 110°,

Therefore the correct answer is 1 and 4

Answer:

21.66

20.545

20.479

20.15

20.1

Hello There!

From Least To Greatest, The Numbers Would Be

20.1, 20.15, 20.479, 20.545, 21.66

Answer:

[tex]\large\boxed{1<x<7\to x\in(1,\ 7)}[/tex]

Step-by-step explanation:

[tex]|x-4|<3\iff x-4<3\ \wedge\ x-4>-3\qquad\text{add 4 to both sides}\\\\x<7\ \wedge\ x>1\Rightarrow1<x<7[/tex]

you have to make a negative and positive equation for this situation

x-4<3 and x+4<3

for the first equation you have to add 4 to both sides to get x<7

for the second equation you have to subtract 4 from both sides to get x<-1

hope this helps

The given options are 1) y = (cos x) / x is neither and 2) y = (sin x) / x is even.

Trigonometric ratios for a right-angled triangle are from the perspective of a particular non-right angle.

In a right-angled triangle, two such angles are there which are not right-angled (not of 90 degrees).

The slanted side is called the hypotenuse.

From the considered angle, the side opposite to it is called perpendicular, and the remaining side will be called the base.

1) y = (cos x) / x is neither, since cos x is even and x is odd.  

2) y = (sin x) / x is even since sin x and x would either both be positive at the same time or negative at the same time.  

We know that (-) / (-) is positive, just as (+) / (+) is positive.

Learn more about trigonometric ratios here:

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Final answer:

1. The function y=cos(x)/x is neither even nor odd due to its lack of symmetry properties

2. y=sin(x)/x is an odd function as it satisfies the symmetry condition about the origin.

Explanation:

To determine if the functions y=cos(x)/x and y=sin(x)/x are even, odd, or neither, we need to understand the definitions of even and odd functions and apply them accordingly.

Even and Odd Functions:

An even function satisfies the condition f(-x) = f(x), meaning the function's graph is symmetric about the y-axis. An odd function satisfies the condition f(-x) = -f(x), indicating symmetry about the origin.

Analysis of y=cos(x)/x:

To determine if y=cos(x)/x is even, odd, or neither, replace x with -x:

y=cos(-x)/(-x) = cos(x)/(-x) because cos(-x) = cos(x), an even function property.

This contradicts the definitions of both even and odd functions; hence, y=cos(x)/x is neither even nor odd.

Analysis of y=sin(x)/x:

Similarly, for y=sin(x)/x, replace x with -x:

y=sin(-x)/(-x) = -sin(x)/(-x) because sin(-x) = -sin(x), an odd function property.

This simplifies to y=sin(x)/x, which satisfies the condition for an odd function.

Therefore, y=sin(x)/x is an odd function.

Final answer:

To find the unit rate of a 16oz soda bottle that costs $3.49, divide the price by the ounces, resulting in $0.218125 per ounce, which rounds to $0.22 per ounce.

Explanation:

The question is about calculating the unit rate of a 16oz bottle of soda that costs $3.49. To find the unit rate, we divide the total cost by the number of ounces. Thus, the unit rate is $3.49 ÷ 16 oz, which equals approximately $0.218125 per ounce. Rounding to the nearest tenth of a cent, the unit rate is $0.22 per ounce.

Answer:

∠2 and ∠3 are complementary

Step-by-step explanation:

Complementary angles add up to 90°. Angles 1 and 3 are complementary, so the formula is ∠1 + ∠3 = 90°. Given that Angle 1 equals to angle 2, we substitute angle 2 for angle one in the equation stated before. Now we have ∠2 + ∠3 = 90°, so angles 2 and 3 are complementary

Answer:

The zeros are

[tex]x1=\frac{-5+\sqrt{5}} {2}[/tex]   and [tex]x2=\frac{-5-\sqrt{5}} {2}[/tex]

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form [tex]ax^{2} +bx+c=0[/tex] is equal to

[tex]x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}[/tex]

in this problem we have

[tex]f(x)=x^{2} +5x+5[/tex]  

To find the zeros equate the function to 0

[tex]x^{2} +5x+5=0[/tex]  

so

[tex]a=1\\b=5\\c=5[/tex]

substitute in the formula

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

[tex]x=\frac{-5(+/-)\sqrt{5}} {2}[/tex]

[tex]x1=\frac{-5+\sqrt{5}} {2}[/tex]

[tex]x2=\frac{-5-\sqrt{5}} {2}[/tex]

Answer: Yes.

Step-by-step explanation:

30/5 or 30 divided by 5 simplifies to 6. 6 is a whole number and therefore it is an integer.

Answer:

A=3.43 ft^2

Step-by-step explanation:

A=lw

A=4(6/7)

A=3.43 ft^2

To find the area of a rectangular garden 4 feet by 6/7 feet, multiply the length by the width to get 24/7 square feet.

The area of a rectangular garden measuring 4 feet by 6/7 feet can be calculated as follows:

Therefore, the area of the rectangular garden is 24/7 square feet.

Step-by-step explanation:

First, change the mixed fraction into an improper fraction:

5 3/7 =

5 x 7 = 35 + 3 = 38/7

Next, divide:

38/7 = 5.42857...

5.43 (rounded) is your answer.

Of course, the more digits behind it the better, so it is up to your discretion and your answer choices.

~

Answer:

5*7+3 = 38/7 ~5.43

we can multiple 5 by 7 and add them by 3

For this case we have the following expression:

[tex](-4x) ^ 2 = 100[/tex]

To look for the solution:

 We apply root to both sides of the equation to eliminate the exponent:

[tex]-4x = \pm \sqrt {100}\\-4x = \pm10[/tex]

Then we have two solutions:

[tex]-4x = 10[/tex]

Dividing between -4 on both sides of the equation:

[tex]x = \frac {10} {- 4}\\x = - \frac {5} {2}[/tex]

The second solution:

[tex]-4x = -10[/tex]

Dividing between -4 on both sides of the equation:

[tex]x = \frac {-10} {- 4}\\x = \frac {5} {2}[/tex]

Answer:

[tex]x_ {1} = - \frac {5} {2}\\x_ {2} = \frac {5} {2}[/tex]

[tex]\bf (x-7)(x^2+3x-3)~\hfill \begin{array}{cll} x^2+3x-3\\ \times x\\ \cline{1-1} x^3+3x^2-3x \end{array}~~+~~ \begin{array}{cll} x^2+3x-3\\ \times -7\\ \cline{1-1} -7x^2-21x+21 \end{array}~\hfill \\\\[-0.35em] ~\dotfill\\\\ (x^3+3x^2-3x) +(-7x^2-21x+21)\implies x^3-4x^2-24x+21[/tex]

notice that all you do is simply multiply the terms of either one by the terms of the other sequentially, then add like-terms.

Answer:

-sqrt(3)/2

Step-by-step explanation:

Use double angle identity for sin(2x)

sin(2x)=2sin(x)cos(x)

We are given sin(x)=-1/2 so we already have so far that:

sin(2x)=2(-1/2)cos(x)

sin(2x)=-1*cos(x)

We just need to find cos(x).  

x is in the fourth quadrant so cosine will be positive there

knowing the unit circle we should know that if sin(x)=-1/2 then cos(x)=sqrt(3)/2 while in 4th quadrant.

So the answer is sin(2x)=-1*sqrt(3)/2=-sqrt(3)/2

[tex]C=ad\\\\a=\dfrac{C}{d}[/tex]

Answer:

y≥2-4

Step-by-step explanation:

Simplify your equation.

4x-2y≤8

-4x      -4x

-2y≤-4x+8

/-2       /-2

y≥2-4

Answer:

Just add up the measurements of the sides and then double the result.

(2 + √5 + 6 + 3√5) · 2

= (8 + 4√5) · 2

= 16 + 8√5 (cm)

To answer your question, we first need to understand that the perimeter of a rectangle is calculated by adding up all its sides or simply twice the sum of its length and width.

From the information given, the width of the rectangle is equal to 2 cm plus the square root of 5 cm, while the length is 6 cm plus 3 times the square root of 5 cm.

So now, let's sum up the length and the width:
= (2 + √5 cm) + (6 + 3√5 cm)
= 8 + 4√5 cm

We then multiply this result by 2 (to account for both sets of opposite sides of the rectangle):
Perimeter = 2 * (8 + 4√5 cm)
Perimeter ≈ 33.89 cm

Therefore, the perimeter of the rectangle is roughly 33.89 cm.

Answer:

Circles A  and D are congruent because they both have a radius of 3

Step-by-step explanation:

Answer:

Circle A and circle D are congruent ⇒ 3rd answer

Step-by-step explanation:

* Lets talk about the circle

- Any circle has diameter

- Any circle has radius which is half the diameter in length

- All the circles are similar because the measure of all circles is 360°

 and there is the ratio between the radii

- The two circles are congruent if they have the same radii because

  the congruence is special case of similarity when the ratio equal 1

* Lets look to the figure to solve the problem

- There are four circles in the figure

# Circle A with radius 3"

# Circle B with radius 4"

# Circle C with radius 5"

# Circle D with radius 3"

∵ The radius of circle A = 3"

∵ The radius of circle D = 3"

∴ The radii of circle A and circle D are congruent

∴ Circle A and circle D are congruent

Answer:

A (7^6)

Step-by-step explanation:

Step 1: Find the property of 7^13/7^7

b^m/b^n=b^m-n

Therefore, when the numerator and denominator are the same number, the powers can be subtracted to simplify the answer.

Step 2: Apply the property to the question

7^13/7^7 = 7^13-7

=7^6

Hence, option A is the correct answer.

!!

Answer:

The equivalent expression is [tex]7^{6}[/tex] ⇒ answer A

Step-by-step explanation:

* Lets revise some rules of the exponents

- In the exponential functions we have some rules

# In multiplication if we have same base then add the power

  b^m  ×  b^n  =  b^(m + n)  

- Ex: [tex]5^{11}*5^{4}=5^{11+4}=5^{15}[/tex]

# In division if we have same base we subtract the power

  b^m  ÷  b^n =  b^(m – n)

- Ex: [tex]\frac{3^{10}}{3^{4}}=3^{10-4}=3^{6}[/tex]

* Now lets solve the problem

- There is the expression [tex]\frac{7^{13}}{7^{7}}[/tex]

- We have base 7 up and down

∵ In division if we have same base we subtract the power

∵ The base up is 7 and the base down is 7

- We will subtract the powers

∴ [tex]\frac{7^{13}}{7^{7}}=7^{13-7}=7^{6}[/tex]

∴ The answer is [tex]7^{6}[/tex]

* The equivalent expression is [tex]7^{6}[/tex]

Answer:

percentages

Step-by-step explanation:

Sales tax is an everyday example of where percentages are used.

Sales tax is an everyday example of where percentage math is used.

Given that,
To determine the suitable system that fit the given incomplete statment.

The percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.

Here,
Sale tax is a type of taxation, which is applied to the sale and business of goods and services up to some percentage of the actual revenue generated by the goods and services in the form of some percent of the price of the actual cost of goods and services.

Thus, Sales tax is an everyday example of where percentage math is used.

Learn more about percentages here:

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Answer:

See below in BOLD.

Step-by-step explanation:

What you need to do is identify the corresponding sides in the polygon than divide the larger length by the smaller.

3.  The side length 8 corresponds to the 4 in the other polygon.

So the scale factor  is 8/4 = 2.

4. Scale Factor = 24/20 = 1.2.

5. 40/32  = 5x / 24

5x = 40*24 / 32

5x = 30

x = 6.

6. 25/30 = 4x + 7 / 42

5/6 = 4x + 7 / 42

6(4x + 7) = 210

24x = 210 - 42 = 168

x = 168/24

x = 7.

7. 40/24 = 3x + 5 / 21

5/3 = (3x + 5) / 21

9x + 15 = 105

9x = 90

x = 10.

8.   24 / 40 = (x + 3) / 15

3/5 = (x + 3) / 15

5x + 15 = 45

5x = 30

x = 6.

Answer:

(f-g)(x)  = 2x - x^(-7)

Step-by-step explanation:

We know that

f(x) = 2x^+1 = 2x

g(x)=x^-7 = x^(-7)

Then, we just need to subtract both functions

(f-g)(x) = f(x) - g(x) =  2x - x^(-7)

(f-g)(x)  = 2x - x^(-7)

Please, see attached images for more information

Answer:

The graph in the attached figure

Step-by-step explanation:

we have

[tex]f\left(x\right)=-\left|x-2\right|-1[/tex]

The function represents an inverted V-shaped graph

The vertex of the function is the point (2,-1)

The y-intercept of the function is the point (0,-3)

The domain is all real numbers -----> (-∞,∞)

The range is all real numbers less than or equal to -1 ----> (-∞,-1]

Using a graphing tool

The graph in the attached figure

Answer:

±[tex]12[/tex]

Step-by-step explanation:

We need to find [tex]\sqrt{144}[/tex].

Now, we know that  [tex](12)^{2} = 144[/tex] and [tex](-12)^{2} = 144[/tex]

Therefore: [tex]\sqrt{144}=[/tex]±[tex]12[/tex]

Summarizing, the real square roots of 144 are ±[tex]12[/tex]

[tex]\sqrt{144}=\pm12[/tex]

Answer:The answer is 189 units 3

Step-by-step explanation:

It is a 3x7x9 prism so you multiply the numbers

Answer:

36

Step-by-step explanation: