Twelve members of a band purchase one beverage each during a break at practice. Exactly 5 of the 12 members bought bottled water. At this rate, how many band members would you expect to buy bottled water, if all 168 members purchase a beverage?

Answer: AI:EF

Step-by-step explanation:

Answer:

D. ) AI:EF

Step-by-step explanation:

PLATO

Answer:

[tex]\huge\boxed{\sqrt{(125^2)^{-\frac{1}{3}}}=\dfrac{1}{5}}[/tex]

Step-by-step explanation:

[tex]\sqrt{(125^2)^{-\frac{1}{3}}}\qquad\text{use}\ (a^n)^m=(a^m)^n\\\\=\sqrt{\left(125^{-\frac{1}{3}\right)^2}\qquad\text{use}\ \sqrt{a^2}=a\ \text{for}\ a\geq0\\\\=125^{-\frac{1}{3}}\qquad\text{use}\ a^{-n}=\dfrac{1}{a^n}\\\\=\dfrac{1}{125^\frac{1}{3}}\qquad\text{use}\ a^\frac{1}{n}=\sqrt[n]{a}\\\\=\dfrac{1}{\sqrt[3]{125}}=\dfrac{1}{5}\qquad\text{because}\ 5^3=125[/tex]

Answer:

[tex]39.8^{\circ} C[/tex]

Step-by-step explanation:

We are given that the temperature each hour in Elma Texas on October 1 is modelled by the equation

[tex]t(h)=10cos(15h-10)^{\circ}+30[/tex]

Where h=Hour of the day with 0 meaning midnight

t=Temperature in degree Celsius

We have to find the temperature on October 1.

Substitute h=0

[tex]t(0)=10cos(15(0)-10)+30[/tex]

[tex]t(0)=10cos(-10)+30[/tex]

[tex]t(0)=39.8^{\circ} C[/tex]

Hence, the temperature in Elma on October 1=[tex]39.8^{\circ} C[/tex]

Answer:

  9

Step-by-step explanation:

Put the given information into the equation and solve for x.

  y = (2/3)x -6

  0 = (2/3)x -6 . . . . . substitute for y

  0 = x - 9 . . . . . . . . multiply by 3/2

  9 = x . . . . . . . . . . . .add 9

The x-coordinate of the x-intercept point is 9.

Answer:

x=9

hope this helps :>

Answer: B

Step-by-step explanation:

If we assume the no. of books to be x.

Value of more books will be 8.15 x

The equation will be

8.15x + 32.5 = 204

Answer:

d = 6

Step-by-step explanation:

5d - 10 = 20​

Add 10 to each side

5d - 10+10 = 20+10

5d = 30

Divide by 5

5d/5 = 30/5

d = 6​

Answer:

d = 6

Step-by-step explanation:

5d - 10 = 20

Add 10 to both sides of the equation

5d = 30

Divide both sides of the equation by 5

d = 6

Hope this helps :)

Hey there! :)

Answer:

Graphed below.

Step-by-step explanation:

Graphing y = 2x + 1 can be done by finding points on the line. Find the y and x intercepts to make graphing more simple:

Solving for the y-intercept:

y = 2(0) + 1

y = 1, or (0, 1). This is the y-intercept.

Solving for the x-intercept:

0 = 2x + 1

Subtract 1 from both sides:

-1 = 2x

Divide both sides by 2:

x = -1/2, or (-1/2, 0). This is the x-intercept. We can graph the equation given these two points.

Answer:

Step-by-step explanation:

[tex]0.6y + 0.8 = 0.28y + 1.12[/tex]

Move the variable to L.H.S and change its sign:

[tex]0.6y - 0.28y + 0.8 =1.12[/tex]

Move the constant to R.H.S and change its sign:

[tex]0.6y - 0.28y = 1.12 - 0.8[/tex]

Calculate

[tex]0.32y = 0.32[/tex]

Divide both sides of the equation by 0.32

[tex] \frac{0.32y}{0.32} = \frac{0.32}{0.32} [/tex]

Calculate

[tex]y = 1[/tex]

Hope this helps...

Good luck on your assignment..

Answer:

Hello!

`~~~~~~~~~~~~~~~~~~~~

0.6y + 0.8 = 0.28y + 1.12 =

[tex]y = 1[/tex]

~~~~~~~~~~~~~~~~~`~~~

Step-by-step explanation: Isolate the variable by dividing each side by factors that don't contain the variable.

Hope this helped you. Brainliest would be nice!

☆_________________❤︎_________________☆

Answer:

approximate volume = = 28336 cubic ft.

Step-by-step explanation:

Base area = 70840 sq. ft

Each story is about 10 ft.

approximate height = 12*10 = 120 '

Volume of pyramid

= Base * height /3

= 70840 * 120 / 3

= 28336 cubic ft.

Answer: 2,833,600 [tex]ft^{3}[/tex]

Step-by-step explanation: Please see the image below!

Answer:

Step-by-step explanation:

This problem has to do with matrix multiplication.

we have a row matrix multiplying a 2x2 matrix, this will result to a row matrix

=[4*-2+2*7] and [4*5+2*-1]

=[-8+14] and [20+-2]

=[6  18]

Answer:

c. (6,18)

Step-by-step explanation:

Answer:

standard deviation=143.527

C

Step-by-step explanation:

75, 82, 100, 120, 140.

if we add 450

75, 82, 100, 120, 140,450

standard deviation=143.527

find the mean=sum /count=967/6=161.167

then find the  √square difference between each sample and the mean, add up the differences²/6-1

find the square root of the differences=143.527

Answer:

C-the new standard deviation is greater the $27

Answer:

arc m AE = 120

Step-by-step explanation:

∠C = 1/2 (AE-BD)

We can fill most of that in with the info we were given:

36= 1/2(AE-48)

Multiply both sides by 2 to get

72 = AE - 48 so  

AE = 120°

Answer:

B. -1/3x

Step-by-step explanation:

Start with

y = mx + b

The y-intercept is 0, so we have

y = mx

To find m, the slope, start at (0, 0).

slope = m = rise/run

Go up 1 unit and left 3 units. Rise = 1; run = -3.

m = 1/(-3) = -1/3

Now we have

y = -1/3x

Answer: B.

Answer:

The initial value is 1500

growth

43 % growth

Step-by-step explanation:

Exponential equations are in the form

y = a * b^x

a is the initial value

b is the growth or decay

b>1 is growth b-1 rate  of growth

b <1 decay  1-b rate of decay

f(x) = 1500 * 1.43 ^x

The initial value is 1500

1.43 > 1 so it is growth

1- 1.43 = .43

Change to percent

43 % growth

Answer:

Hello!

____________________

77 = 1 x 7 x 11

91 = 1 x 7 x 13

143 = 1 x 11 x 13

Step-by-step explanation: There are no HCF's except 1. So 1 is the highest common factor. HCF ( 77, 91 143 ) = 1

Hope this helped you!

Answer:

HCF = 1

Step-by-step explanation:

Factors of 77 = 1,7,11,77

Factors of 91 = 1, 7, 13, 91

Factors of 143 = 1, 11, 13, 143

The Highest factor which is common in all of the factors is 1.

Index notation = [tex]1^1[/tex]

Answer:

n = 25

Step-by-step explanation:

Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

PEMDAS is the order of operation, and is:

Parenthesis

Exponents & roots

Multiplication

Division

Addition

Subtraction

~

First, subtract 7 from both sides:

(-1/5)n + 7 (-7) = 2 (-7)

(-1/5)n = 2 - 7

(-1/5)n = -5

Next, multiply -5 from both sides:

(-1/5)(-5)n = (-5)(-5)

n = -5 * -5

n = 25

25 is your answer for n.

~

Answer: n = 25

Step-by-step explanation: In this equation, our first step is to isolate the n term by subtracting 7 from both sides.

On the left, +7 -7 cancels and we're left with -1/5n.

On the right, 2 - 7 simplifies to -5.

So we have -1/5n = -5.

In order to get n by itself, since it's being multiplied by a fraction,

we multiply both sides of the equation by the reciprocal of that fraction.

The reciprocal of -1/5 is -5/1.

So we multiply both sides of the equation by -5/1.

So we have (-5/1)(-1/5n) = -5(-5/1).

On the left, our 1's cancel and our 1's cancel.

Also, remember that a negative times a negative is a positive.

So on the left we are left with n.

On the right, -5(-5/1) is 25.

So n = 25.

Answer:

44%

Step-by-step explanation:

For these types of problems, look at the totals. We know that there are 0.44 out of 1 eighth graders. Since it doesn't specify how the 8th grader is dropped off, we take 0.44 and divide it by 1 (the total). We get 0.44, but since it's most likely asking for percentages, multiply that by 100.

Answer: £25

Step-by-step explanation:

Given the following :

pink paint production = mixing red and white paint in the ratio 2 : 3

Price of red paint = 80 per 10 Litre

Price of white paint = 5 per 10 Litre

Selling price of pink paint = £60 per 10 litre

Recall the ratio of red to white paint :

2 : 3 ; 2 +3 = 5

Therefore,

Amount of Red paint used:

= (2/5) × 10 ; 20/5 = 4,

Cost per Litre = 80 / 10 = £8

Cost of red paint = 4 × 8 = £32

Amount of white paints used:

= (3/5) × 10 ; 30/5 = 6

Cost per Litre = 5 / 10 = £0.5

Cost of white paint = 6 × 0.5 = £3

Total cost of production = £(32 + 3) = £35

Profit = selling price - product cost

Profit = £(60 - 35) = £25

Answer:

x=8.4

Step-by-step explanation:

4x +8y=40

replace y as 0.8

4x+8*0.8=40

4x+6.4=40

subtract 6.4 from both sides

4x=33.6

divide by 4

x=8.4

Step-by-step explanation:

4x + 8y = 40

Simplify the equation

Divide all terms by 4

We have

x + 4y = 10

Make x the subject

x = 10 - 2y

When y = 0.8

Substitute the value of y into the equation

We have

x = 10 - 2(0.8)

x = 10 - 1.6

x = 8.4

Hope this helps you

Answer:

(f - g)(x) = -x² + 2x + 8

Step-by-step explanation:

Step 1: Plug in variables

2x + 1 - (x² - 7)

Step 2: Distribute the negative

2x + 1 - x² + 7

Step 3: Combine like terms

-x² + 2x + 8

Answer:

  -x^2 +2x +8

Step-by-step explanation:

F(x) = 2x+1

g(x) =x^2-7

(f-g) (x) =2x+1  - ( x^2 -7)

   Distribute the minus sign

           = 2x+1 -x^2 +7

           -x^2 +2x +8

Answer:

Step-by-step explanation:

First let's find the value of x :

We khow that the area of this triangle is 400 and it is given by the product of the base and the height over 2

Let's find the hypotenuse :

The pythagorian theorem :

Answer:

A) 120 ft^2

Step-by-step explanation:

The total surface area is the sum of the areas of the 4 congruent triangular sides and the area of the square base.

TA = 4 * area of triangle + area of square

TA = 4 * bh/2 + s^2

TA = 4 * 6 ft * 7 ft/2 + (6 ft)^2

TA = 84 ft^2 + 36 ft^2

TA = 120 ft^2

Answer:

A) 120 ft^2

Step-by-step explanation:

Answer:

46 euros

Step-by-step explanation:

£30 = 40 euros

4.50 = £3 and £1.50

£3 = 4 euros

1.50 = 2 euros because you half the 4 euros because half of 3 is 1.50

hope this helps if not sorry  

Answer:

€46

Step-by-step explanation:

→ We know £3 = €4, so we have to work out how many euros in £1

£3 =  €4

(÷3)   (÷3)

£1 =  €1.3

→ Now we multiply £34.50 by €1.3 because we know £1 = €1.3

£34.50 × €1.3 = €46

Answer:

1. 6/21

2. 6/14

3. 12/20

4. 4/12

5. 5/11

Step-by-step explanation:

color of ball your looking for/Total amount of balls

Probability for the situations given are 1. 6/21, 2. 3/7, 3. 3/5, 4. 1/3 and 5. 5/11.

Probability is the chance of getting an outcome for an event. Probability is calculated by dividing the number of likely outcomes by the total number of outcomes.

1. Number of red balls = 15

  Number of blue balls = 6

  Total number of balls = 15 + 6 = 21

  Probability of getting a blue ball = 6/21

2. Number of white balls = 6

   Number of red balls = 8

   Total number of balls = 6 + 8 = 14

   Probability of getting a white ball = 6/14 = 3/7

3. Number of red balls = 12

   Number of blue balls = 8

   Total number of balls = 20

   Probability of getting a red ball = 12/20 = 3/5

4. Number of blue balls = 4

   Number of red balls = 8

   Total number of balls = 12

   Probability of getting a blue ball = 4/12 = 1/3

5. Number of blue balls = 6

   Number of black balls = 5

   Total number of balls = 11

   Probability of getting a black ball = 5/11

Hence the probabilities of selecting a ball at random in each case has been answered.

Learn more about Probability here :

https://brainly.com/question/30034780

#SPJ2

Answer:

Option (C) 235.5 cubic units

Step-by-step explanation:

Data obtained from the question include:

Radius (r) = 5 units

Height (h) = 9 units

Pi (π) = 3.14

Volume (V) =..?

The formula for calculating the volume of an oblique cone is the same as the formula for calculating the right cone. The formula is given below:

V = 1/3πr²h

With the above formula, we can obtain the volume of the oblique cone as follow:

V = 1/3πr²h

V = 1/3 x 3.14 x 5² x 9

V = 3.14 x 25 x 3

V = 235.5 cubic units.

Therefore, the volume of the oblique cone is 235.5 cubic units.

The questions doesn't really specify much here is as much I can say.

Since 50 is the slope we can say that this is the hourly cost of a car repair (as stated in the question).

20 represents the y-intercept so this could represent the cost for the technician to look at whats wrong with the car.

Best of Luck!

Answer:

-2x^2

Step-by-step explanation:

Simplify

x^-1 - 2x^2 - x^-1

becomes

-2x^2

Answer:

This property is known as the associative property

Step-by-step explanation:

In the associative property, you rearrange the numbers so they make the most sense in what position they are in.

Hope this helps! :)

Answer:

associate property

:<

Answer: 45

Step-by-step explanation: that is correct