PLEASE HELP A. Use composition to prove whether or not the functions are inverses of each other. B. Express the domain of the compositions using interval notation.

Answer:

30% = 30/100 = 0.3

1.3 would be 130%

I hope this helps you!

30% is equivalent to 0.30 or 3/10, but not 1.3.

There seems to be an error in the statement that 30% is equivalent to 1.3. That is not correct.

To clarify, 30% is equivalent to the decimal value 0.30 or the fraction 3/10.

To convert a percentage to a decimal, we divide the percentage value by 100. In this case, 30 divided by 100 equals 0.30.

If you were looking for a value that represents a 30% increase or an amount including a 30% addition, you would multiply the original value by 1.3, not 30%. For example, if you have a value of $100 and want to increase it by 30%, you would multiply $100 by 1.3, resulting in $130.

So, 30% is equivalent to 0.30 or 3/10, but not 1.3.

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Answer:

[tex]d=\sqrt{73}[/tex]

Step-by-step explanation:

[tex]Q(5, -1)[/tex]

[tex]P(-3, 2)[/tex]

Using the distance formula:

[tex]d=\sqrt{(x_{2}-x_{1})^2+(y_2+y_1)^2}[/tex]

[tex]d=\sqrt{(-3-5)^2+(2-(-1))^2}[/tex]

[tex]d=\sqrt{(-8)^2+(3)^2}[/tex]

[tex]d=\sqrt{64+9}[/tex]

[tex]d=\sqrt{64+9}[/tex]

[tex]d=\sqrt{73}[/tex]

[tex]d\approx 8.5[/tex]

Answer: x2 + 5x – 104 = 0

Step-by-step explanation:

Answer:

1. 4, 4, 6, 8

2. 5, 11, 3, 1

3. 11, 27, 111

4. [tex]16\sqrt{14}-31[/tex]

5. [tex]20\sqrt{2}-56[/tex]

Step-by-step explanation:

For the tables remember that after you solve any negative number will turn positive

For 4-5 just plug in what is in the parenthesis into x and solve

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▹ Answer

$198

▹ Step-by-Step Explanation

[tex]\frac{22}{100} * 900\\\\\frac{22}{1} * 9 = \frac{198}{1} \\\\= 198[/tex]

Hope this helps!

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Answer:

198

Step-by-step explanation:

22% of 900

22% * 900

Change to decimal form

.22 * 900

198

Answer:

36 degrees

Step-by-step explanation:

Because it's a right angle, AOB and BOC are complementary, meaning they add up to 90 degrees.

(3x+30)+(6x-12)=90

9x+18=90

9x=72

x=8

AOB = 6x-12, so substituting

8 in for x gives us 48-12=36

Answer:

im so sorry for the other answer i reported it and im gonna help with this question because i have the same question on my test.

ok so i got C it makes the most sense to me but if im wrong then ill delete this.

If im correct please mark me as brainliest

Step-by-step explanation:

yes this is wrong but i cant delete it so just ignore it

Answer:

B  3 1/2 to the right and one unit down

Step-by-step explanation:

Answer:

Step-by-step explanation:

133

Answer:

C. 666

Step-by-step explanation:

USING PEMDAS we can solve this problem.

[tex]675-(15-12)^3 / 3\\15-12=3\\675-(3)^3/3\\675-27/3\\675-9=666[/tex]

Answer:

666

Step-by-step explanation:

Following Order of Operations rules (PEMDAS), we must do first any operations that appear inside parentheses.  Here (15 - 12) = (3).

Next we must perform any exponentiation.  Here we have 3^3 = 27.

Then we have 675 - 27 / 3, or 666 (Answer C)

Answer:

31

Step-by-step explanation:

(45) - (+14)

45 - 14 (Negative sign is distributed)

=31

Answer:

H. 50 sq cm

Step-by-step explanation:

Triangle PSU is an equilateral triangle because each side of it is a radius of semicircle TRP. Also, the radius of semicircle TRP is the short side of the rectangle. So, if the total perimeter of the triangle is 15, each side is 5 cm. So, the short side of the rectangle is 5cm and the long side is 5*2 = 10 cm.

5 * 10 = 50 sq cm

====================================================

Explanation:

Since we have a circle, the segments extending from the center outward to the edge of the circle are radius segments. Any two radii of the same circle are the same length. The triangle on the left with the 92 degree angle is isosceles. Any isosceles triangle has exactly two side lengths that are the same, which leads to the base angles being the same as well.

For the triangle on the left with angles a,b,92, the base angles are 'a' and 'b'. So a = b.

For any triangle, the angles add to 180

a+b+92 = 180

a+a+92 = 180 ... Replace b with 'a'

2a+92 = 180

2a = 180-92

2a = 88

a = 88/2

a = 44

angle b is also 44 as well

a+b+92 = 44+44+92 = 180

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[tex]3\ \div \ 2127[/tex]

[tex]= \frac{1}{709}[/tex] (Decimal: 0.00141)

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Answer:

D.$750

Step-by-step explanation:

3000 x 0.25 = 750

Answer:

$750

Step-by-step explanation:

First you have to find 2% of the total of $300. To do this you multiply 3000 by .25 to get 750, this is your answer.

Answer:C and F are correct

Step-by-step explanation:

got it right on edge

Answer:

A

Step-by-step explanation:

Becuase It expands the (2+4)8=2*8+8*4=6*8=48

Answer:

x=9

Step-by-step explanation:

PQ + QR + RS = PS

2x-6 + 1 + x-4 = 18

Combine like terms

3x -9 = 18

Add 9 to each side

3x-9+9= 18-9

3x = 27

Divide by 3

3x/3 = 27/3

x = 9

Answer:

RS=5

Step-by-step explanation:

solve for x:

2x-6+1+x-4 = 18

combine like terms

3x-9=18

subtract both sides to make x isolated

3x=27

divide by 3 to get x

x=9

RS=x-4

RS=9-4

RS=5

Answer:

c

Step-by-step explanation:

the correct answer is c

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Answer:

surfacevolume = 1/2 (bh) l

surfacearea = bh + pl

Answer:

No qualitative graph shown here.

Step-by-step explanation:

No qualititative graph is shown here.  The given graph is quantitative, as it involves numerical measures.

Answer:

qualitative graph are graph that are used to represent situation that do not necessarily have numerial value it repressent the essential elements of a situation in a graphical form

Step-by-step explanation:

two times of a number added to 18 gives 70

what is value of X.

2x + 18 = 70

2x = 52

X = 26 is answer

can u talk to me in comment section

The system of equations representing the described condition will be [tex]x+y=15\;and \;2x+4y=40[/tex].

A variety of problems can be solved using the system of equations.

Consider a simple problem of purchasing notebooks and pens from the market.

You bought some pens at $2 per pen and some notebooks at $4 per notebook from the market. At the end of shopping, you have spent $40 and you got 15 objects in your bag.

Write the given situation in the form of equations.

Let x be the number of pens bought and y be the number of notebooks bought.

So, the equations can be made as,

[tex]x+y=15\\2x+4y=40[/tex]

Therefore, the system of equations representing the described condition will be [tex]x+y=15\;and \;2x+4y=40[/tex].

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18 + 4 ÷ 2 − 8

Following PEDMAS, divide first:

18 + 2 -8

Now add and subtract to get the final answer:

18+2 = 20

20-8 = 12

The answer is 12

Answer:

12

Step-by-step explanation:

Answer:

A. 17.5 in.

Step-by-step explanation:

The formula for the area of a triangle is 1/2 * (b * h), where h represents the height and b represents the base. We can solve from reverse using area/height = base*2

369.25/42.2 = 8.75

1/2base = 8.75

base = 8.75 * 2

base = 17.5

Answer:

369.25/42.2 = 8.75

1/2base = 8.75

base = 8.75 * 2

base = 17.5

hope I helped you

Answer:

d)33

e)80

Step-by-step explanation:

I'm sorry I don't really know how to explain this.

If for [tex] x[/tex] cumulative frequency the marks are $y$ (as given on the graph), we have $x$ students with marks equal to or less than $y$

d)

Total students are $140$. Hence three-fifths of that is $140\times \frac{3}{5}=84$. Find the marks at $84$ in the graph for the passing marks.

e)

From the graph we have $60$ students having less than or equal to $30$ marks. Total students are $140$.

Subtracting, $140-60=80$ we get the numbee of students achieving more than 30 marks.

Answer:

-615.12

Step-by-step explanation:

hope this helps

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Answer:

x=127°

Step-by-step explanation:First you have to solve for n and to do so you have to add the interior angles together and equal them to the remote exterior angle.

n+7+6n+22=197-5n

12n+29=197

12n=168

n-14

once you get n you have to plug it into 197-5n

197-5(14)

197-70

127

The required value of exterior angle  m∠x is 127.

From figure x is remote exterior angle m∠x=(197−5n)°. and y and z are interior angles m∠y=(6n+22)° and m∠z=(n+7)° respectively. value of x to be determine.

Angle made at outer side of the corner is called exterior angles.

Here, by properties,  sum of the interior angle = remoter exterior angle
So,
m∠x = m∠y + m∠z
197−5n = 6n+22+n+7
168 = 12n
n = 14
put n in m∠x
m∠x=(197−5n)°
m∠x=(197−5*14)°
m∠x=(197−70)°
m∠x=127°

Thus, the required value of exterior angle  m∠x is 127.  

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Answer:

x = 13

Arc RQ = 180°

Step-by-step explanation:

PEQ is an inscribed angle and the measure of an inscribed angle in a circle is equal to half of the arc it sees.

The perimeter of a circle is always 360° therefore

2 × (5x + 15) + 9x + 17 + 6x - 12 = 25x + 35 = 360°

25x = 360 - 35

25x = 325

x = 13

Since arc RQ is equal to 10x + 30 we replace x with the value we just got

10×13 + 30 = 160°

Answer:

80

Step-by-step explanation:

5%-->20% is increased by x4, therefore you multiply 20 by 4 which is 80 or you can set an proportion

Answer:

200 ft

Step-by-step explanation:

Since the road is 400 ft, the midpoint of the road is 200 ft from each end of the road.

Using it's concept, it is found that the exterior angles of the triangle are given as follows:

B. <5

C. <4

The exterior angles of a triangle are the angles that are outside the triangle.

In this problem, the angles are 4 and 5, which means that options B and C are correct.

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