60 points!!! please help asap!!!

Answer:

60

Step-by-step explanation:

They're made up of two 30 degree angles so it's 60 because 30 + 30 = 60.

Answer:

O A. -1/2

Step-by-step explanation:

I hope it's help..

Using the vertex of the quadratic function, it is found that his maximum profit is of $75 when he charges $15 for a key-chain.

A quadratic equation is modeled by:

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

The vertex is given by:

[tex](x_v, y_v)[/tex]

In which:

[tex]x_v = -\frac{b}{2a}[/tex]

[tex]y_v = -\frac{b^2 - 4ac}{4a}[/tex]

Considering the coefficient a, we have that:

In this problem, the function is:

[tex]f(x) = (x - 10)(60 - 3x)[/tex]

In standard format, it is given by:

[tex]f(x) = -3x^2 + 90x - 600[/tex]

Which means that it's coefficients are a = -3, b = 90, c = -600.

Hence:

[tex]x_v = -\frac{90}{2(-3)} = 15[/tex]

[tex]y_v = -\frac{90^2 - 4(-3)(-600)}{4(-3)} = 75[/tex]

Hence, his maximum profit is of $75 when he charges $15 for a key-chain.

More can be learned about the vertex of a quadratic function at https://brainly.com/question/24737967

Answer:

No

Step-by-step explanation:

Because if 8i is a zero then -8i is also a zero. That means you now have four zeros, so the function is at least a fourth degree (quartic) function.

It is not possible to write a polynomial of degree 3 with zeros 5, 3 and 8i.

A polynomial’s degree is the highest or the greatest power of a variable in a polynomial equation.

The degree of a polynomial is equal to the real zeros of the polynomial. Real zeros of the polynomial are 5 and 3 only. 8i is a complex number. Thus degree of the polynomial is 2.

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Answer:

Step-by-step explanation:

side length of the square : ( z + 5 )

[tex] {z}^{2} + 10z + 25 \\ {z}^{2} + 5z + 5z + 25 \\ z(z + 5) + 5(z + 5) \\ (z + 5)(z + 5) \\ [/tex]

perimeter of the square :

[tex](z + 5) \times 4 \\ 4z + 20 \\ [/tex]

Answer:

7 and 8

Step-by-step explanation:

7^2=49

8^2=64

49+64=113

Answer:

7 and 8

Step-by-step explanation:

Answer:

To solve for e, divide 10 from each side.. 1 divided by 10 e=0.1

Answer:

where h is the x of the center of the circle and k is the y of the center of the circle, and r is the radius. (-4,7) radius is 6 h = -4

Step-by-step explanation:

Answer:

45% of students prefer vanilla ice cream.

Step-by-step explanation:

549 + 671 = 1220 total students

549 / 1220 = 0.45 or 45%

Answer:

81.82 or 122.22 one of them sorry I'm not very specific :0

Step-by-step explanation:

Answer:

D. 25%

Step-by-step explanation:

5/20
10/40

15/60

Are all equal to 1/4 or 0.25

To write it as percentage, we times by 100

0.25×100=25%

Answer:

44.11940299 this is the answer

Answer:

"y" would be 120 degrees.  The image is a parallelogram.

Step-by-step explanation:

Answer:

a=?,b=?,c=1

1=ab

1xab

=ab

1=a,1=b

=a=1,b=1

Answer:

[tex]286654464[/tex]

Step-by-step explanation:

first, write the equation:

[tex](2^{9}*3^{5} )*(2^{4} *3)^{2}[/tex]

solve in the parentheses from left to right:

[tex](2^{9} *3^{5} )[/tex]

solve for [tex]2^{9}[/tex]:

[tex]2*2*2*2*2*2*2*2*2=512[/tex]

then solve for [tex]3^{5}[/tex]:

[tex]3*3*3*3*3=243[/tex]

So the equation will be as:

[tex](512*243)*(2^{4} *3)^{2}[/tex]

simplify:

[tex]124416*(2^{4} *3)^{2}[/tex]

solve for [tex](2^{4} *3)^{2}[/tex]:

[tex]2*2*2*2=16\\(16*3)=48[/tex]

complete equation:

[tex]124416*(48)^{2}[/tex]

the answer will be:

[tex]124416*(48)^{2} =\\124416*48*48=\\286654464[/tex]

Answer:

bike: 4,800cm

go-cart: 3000cm

skateboard: 2743.2cm

scooter: 2590.8cm

Step-by-step explanation:

1) keep in mind: 100in=254cm 12 in=1ft

skateboard: 90ft=1080in=2743.2cm

scooter: 1020in=2590.8cm

bike: 4,800cm

go-cart: .03km=30m=3000cm

Fastest to slowest: bike, go-cart, skateboard, scooter

Answer: PART A.

y= remaining height of candle

x= rate the candle burns down in inches per hour

8= original height of candle

the function would be y=8- 0.5x because the candle starts at a height of 8 feet and loses half an inch per hour.

You can use this function to create ordered pairs by putting in number at x which indicates the time:

x=1

y=8- (.5×1)= 7.5

(1, 7.5)

you can then do this for other numbers and get:

(2, 7.0) (3, 6.5) (4, 6.0) (5, 5.5) (6, 5.0)

PART B.

This equation is a function because all of the x-values had different y-values as seen in the coordinates (1, 7.5) (2, 7.0) (3, 6.5) (4, 6.0) (5, 5.5) (6, 5.0)  

PART C.

If the rate was 0.4 inches an hour, it would still be a function because the rate is the only thing that changed making the new function y= 8- 0.4x.This equation would make coordinates of (0,8) (1, 7.6) (2, 7.2) (3, 6.8) and so on with each x value creating a different y value.

Step-by-step explanation: hope this helps

Answer:

His total run is approximately 3.37 miles.

Step-by-step explanation:

Let F represents his starting point, C represents his position from where he went to east direction and H represents his position from where he went to left towards Florida Avenue.

Thus, according to the question,

FC = 0.75 miles,

CH = 1.2 miles,

By making the diagram,

∠FCH = 90°,

By Pythagoras theorem:

Hence, the total distance he covered = FC + CH + FH

= 0.75 + 1.2 + √2.0025

= 3.36509716981

≈ 3.37 miles.

Answer:

The measure of angle MNI is 134 degrees

Step-by-step explanation:

That angle is equal to the sum of the opposite angles so I found x=7 and when you plug in 7 you get 135

Answer:

f(g(x)) = g(f(x)) = x

which is the same as

(f ° g)(x) = (g ° f)(x) = x

Step-by-step explanation:

If the functions are inverses of each other, they will yield just x when they are composed together. Being inverses is like one function "UNDOES" the other (this is not a technical term).

Answer:

it's D!!!!!!!

Step-by-step explanation:

Answer:

0.53

Step-by-step explanation:

You just have to know the placements.

Answer:

2

Step-by-step explanation:

5x0.4=2

.4x2=5

Answer:2 pounds

Step-by-step explanation:
Multiply 5 with .4

The property of equality applied to solve the equation is division property of Equality.

Property of equality says that by performing any mathematical operation, of both sides of an expression does not change the original value of the equation.

The equation given in the problem is,

[tex]0.36 x = -1. 8[/tex]

This equation is solved further by dividing both side of the expression with decimal number 0.36 as,

[tex]\dfrac{0.36}{0.36}x = -\dfrac{1. 8}{0.36}\\x=-5[/tex]

Here, the division operation is performed both sides of the equation to solve the equation. This does not change the original value of the equation and gives the value of unknown number.

Thus, the property of equality applied to solve the equation is division property of Equality.

Learn more about the property of equality ehre;

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Pages 5 and 40 are missing and comic had originally 40 pages.

Let suppose first that there are no more sheets beyond the sheet containing page 39. A sheet contains two pages, one in front and odd numbered and one behind and even numbered.

If two pages are missing, then another two are missing. According all assumptions, we conclude that pages 5 and 40 are missing and that comic had originally 40 pages. [tex]\blacksquare[/tex]

To learn more on comics, we kindly invite to check this verified question: https://brainly.com/question/1418309

Answer:

this road is not used by people very often

Answer:

option c

Step-by-step explanation:

120 sampling would be enough

Please mark as Brainliest!!

Answer:

D

Step-by-step explanation:

Professional Degree

A person with a Bachelor's Degree is expected to earn an average of $52,200 each year. Thus, option c is correct.

The average is defined as the sum of all observation to the total number of observation.

Given that:

Professional Degree: $109,600

Doctoral Degree: $89,400

Master's Degree: $62,300

Bachelor's Degree: $52,200

Associate's Degree: $38,200

Some College: $36,800

High School Diploma: $30,400

Some High School: $23,400

The best answer from the choices is Bachelor's Degree. Thus, option c is correct.

Learn more about average here:

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Answer:

Look at explanation.

Step-by-step explanation:

10*10 = 100

25 = 100/4

7*3+3=25-1

21+3=25-1

24=24

6*3=16/2

18 is not equal to 8

27 - 20 = 9-2

7 = 7.

Answer:

(a) False

(b) True

(c) True

(d) Tue

(e) False

(f) True

Step-by-step explanation:

[tex]\large \boldsymbol{\sf (a)\ 15 + 5 = 30}[/tex]

[tex]\large \boxed{\begin{minipage}{2.2 cm}\begin{aligned}\sf 15 + 5 & = \sf 30\\\sf 20 & = \sf 30\end{aligned}\\\\\implies \textsf{False}\end{minipage}}[/tex]

..................................................................................................................................................

[tex]\large \boldsymbol{\sf (b)\ 5 (7) - 3 = 32}[/tex]

[tex]\large \boxed{\begin{minipage}{2.48 cm}\begin{aligned}\sf 5 (7) - 3 & = \sf 32\\\sf 35 - 3 & = \sf 32\\\sf 32 & = \sf 32\end{aligned}\\\\\implies \textsf{True}\end{minipage}}[/tex]

..................................................................................................................................................

[tex]\large \boldsymbol{\sf (c)\ 25 = \dfrac{10^2}{4}}[/tex]

[tex]\large \boxed{\begin{minipage}{1.8 cm}\begin{aligned}\sf 25 & = \sf \dfrac{10^2}{4}\\\sf 25 & = \sf \dfrac{100}{4}\\\sf 25 & = \sf 25\end{aligned} \\\\\implies \textsf{True}\end{minipage}}[/tex]

..................................................................................................................................................

[tex]\large \boldsymbol{\sf (d)\ 7 (3) + 3 = 5^{2} - 1}[/tex]

[tex]\large \boxed{\begin{minipage}{3.2 cm}\begin{aligned}\sf 7 (3) + 3 & = \sf 5^2 - 1\\\sf 21 + 3 & = \sf 25 - 1\\\sf 24 & = \sf 24\end{aligned}\\\\\implies \textsf{True}\end{minipage}}[/tex]

..................................................................................................................................................

[tex]\large \boldsymbol{\sf (e)\ 6 (11 - 8) = \dfrac{16}{2}}[/tex]

[tex]\large \boxed{\begin{minipage}{2.8 cm}\begin{aligned}\sf 6 (11 - 8) & = \sf \dfrac{16}{2}\\\sf 6 (3) & = \sf 8\\\sf 18 & = \sf 8\end{aligned}\\\\\implies \textsf{False}\end{minipage}}[/tex]

..................................................................................................................................................

[tex]\large \boldsymbol{\sf (f)\ 3^{3} - 4(5) = |-9| - 2}[/tex]

[tex]\large \boxed{\begin{minipage}{3.88 cm}\begin{aligned}\sf 3^3 - 4 (5) & = \sf |-9| - 2\\\sf 27 - 20 & = \sf 9 - 2\\\sf 7 & = \sf 7\end{aligned}\\\\\implies \textsf{True}\end{minipage}}[/tex]

Answer:

4 more students

Step-by-step explanation:

50 percent of 20 is 10 and 30 percent of 20 is 6 so 10-6=4

Answer:

Step-by-step explanation:

C grade is 50% and B grade is 30%.

The difference is:

If the number of students is 20, then the difference is:

Answer:

-2/3

Step-by-step explanation:

Y2-Y1= -2

X2-x1 =3

Y/x= slope

Answer:

86 adults and 270 children

Step-by-step explanation:

Let x = # of adult tickets;

then the number of children tickets is (356-x).

Write the total money equation (revenue equation)

   [tex]1.75*(356-x) + 2.25x = 666[/tex]  dollars.

From the equation

  [tex]x = \frac{666-1.75*356}{2.25-1.75} = 86[/tex]

ANSWER.  86 adults and 356-86 = 270 children.

CHECK.

[tex]86*2.25 + 270*1.75 = 666[/tex]  dollars.   ! Correct !