15 points if answered correctly

Answer:

0

Step-by-step explanation:

Use rise over run (y2 - y1) / (x2 - x1)

Plug in the 2 points:

(y2 - y1) / (x2 - x1)

(7 - 7) / (8 - 0)

0/8

= 0

So, the slope is 0.

The slope is 0.

The slope is defined as the ratio of the vertical change between two points, the rise, to the horizontal change between the same two points, the run.

Given:

(0,7) and (8, 7)

slope = (y2 - y1)/ (x2 -x1)

slope = (7-7) / (8-0)

slope = 0/7

slope= 0

Hence, the slope is 0.

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Answer:

X = -10

Step-by-step explanation:

Combine like terms

2x + 34 = 14

minus 34.

2x = -20

divide by 2

x = -10

Answer:

x=-10???

Step-by-step explanation:

I just combined like terms and got it from there.

Answer:

Kindly check explanation

Step-by-step explanation:

Given that:

Variable cost = $20

Fixed cost = $30000

selling price = $49

Number of CD's produced = x

Cost (C) as a function of number of CD's produced :

Fixed cost + (variable cost * Number produced)

C = $30000 + ($20 * x)

C = $30000 + 20x

Revenue :

Selling price per CD * number of CDs produced

$49 * x

R = 49x

PROFIT:

REVENUE - COST

$30000 + 20x - 49x

30000 - 29x

Number of CD's which must be produced to break even:

Break even quantity = Fixed costs / (Sales price per unit – Variable cost per unit)

Break even quantity = 30000 / (49 - 20)

= 30000 / 29

= 1034.48

= 1034

Answer:

0.621%

Step-by-step explanation:

First of all let's find the z-score which is given by the formula;

z = (x' - μ)/σ

We are given;

Mean; μ = 80 g

Standard deviation; σ = 2 g

Test score; x' = 85 g

Thus;

z = (85 - 80)/2

z = 5/2

z = 2.5

From the z-distribution table attached, at z = 2.5, the probability is:

P(z > 2.5) = 1 - 0.99379 = 0.00621 or 0.621%

Answer:

[tex]e. \: productivity[/tex]

Answer:

18 meals

Step-by-step explanation:

3/4 of 24 is 18. That means his food will last for 18 meals.

Answer:

y=-2x

Step-by-step explanation:

rise over run. Points to points

you do down 2 to get to another point and you go over 1.

rear makes the slope -2x

Answer: -12

Step-by-step explanation:

If the equation is multiplying all the numbers, the equation would be -2x2y, which is making the new equation is -2(-3)2(-1). Multiply the numbers 6x-2, which is -12

Answer:

5

Step-by-step explanation:

90-45 = 45

45 x 1/9 = 5

45 x 1/9 is the same thing as saying 45/9, FYI

Answer:

5

Step-by-step explanation:

sub 45 into x

h(x) = h(45)

h(45) = 1/9(90-45)

= 1/9(45)

= 5

^^

Answer:

There is no table, but here's a formula;

48 miles multiplied by x amount of gallons

Step-by-step explanation:

Answer:

Value assigned  for Building = $2,520,000

Value assigned  for Press = $1,050,000

Value assigned  for Conveyor belt = $630,000

Step-by-step explanation:

Total appraisal value  = Building + Press + Conveyor belt  

Total appraisal value  =  2,400,000 + 1,000,000 + 600,000

Total appraisal value  = $4,000,000

Value assigned  for Building = (2,400,000/4,000,000)*4,200,000

Value assigned  for Building = $2,520,000

Value assigned  for Press = (1,000,000/4,000,000)*4,200,000

Value assigned  for Press = $1,050,000

Value assigned  for Conveyor belt = (600,000/4,000,000)*4,200,000

Value assigned  for Conveyor belt = $630,000

Answer:

P(A ∪ C) = 0.35

Step-by-step explanation:

Given:

25% speak Arabic

20% speak Chinese

10% speak both languages

Find:

Probability that the student can speak Chinese or Arabic P(A U C)

Computation:

P(A ∪ C) = P(A) + P(C) - P(A ∩ C)

P(A ∪ C) = 0.25 + 0.2 - 0.1

P(A ∪ C) = 0.35

Answer:

[tex]\displaystyle 5[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Calculus

Limits

Limit Rule [Variable Direct Substitution]:                                                             [tex]\displaystyle \lim_{x \to c} x = c[/tex]

Derivatives

Derivative Notation

Instantons Rate of Change

Step-by-step explanation:

Step 1: Define

Identify

f(x) = 2x² + x - 1

x = 1

Step 2: Find Change

Topic: AP Calculus AB/BC (Calculus I/I + II)

Unit: Derivatives

Book: College Calculus 10e

Answer:

She should add 6 cups.

Answer 6

Step-by-step explanation: 4 divided by 2/3

Answer:

It's p - 41.

Step-by-step explanation:

We're trying to find how many pictures Rick drew, which is 41 less than how many Mike drew, p. To find the expression in situations like these, always take how many fewer was drawn from the amount the other person drew, which would be 41 - p. But this would most likely give us a negative answer, which isn't possible. Switch them around and you have p - 41.

Answer:

unit rate is a rate with 1 in the denomination

Answer:

[tex]d = 10[/tex]

Step-by-step explanation:

Distance Formula: [tex]d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

Simply plug in the 2 coordinates into the distance formula to find distance d:

[tex]d = \sqrt{(-3-(-9))^2+(6-(-2))^2}[/tex]

[tex]d = \sqrt{(-3+9)^2+(6+2)^2}[/tex]

[tex]d = \sqrt{(6)^2+(8)^2}[/tex]

[tex]d = \sqrt{36+64}[/tex]

[tex]d = \sqrt{100}[/tex]

[tex]d = 10[/tex]

Answer:

D=10 is the answer

Step-by-step explanation:

Answer:

P (x= 0) =  0.00384

P (x= 1) =   0.000009133

P (x= 2) = 0.00009399

P (x= 3) =  0.0061

P (x= 4) = 0.00281

P (x= 5) =  0.00975

P (x= 6) = 0.0264

P (x= 7) = 0.05772

P (x= 8) =  0.0202

P (x= 9) = 0.14550

P (x= 10) =  0.1733

P (x= 11) =  0.17077

P (x= 12) =  0.138751

P (x= 13) =  0.0925

P (x= 14) = 0.0501

P (x= 15) = 0.0217

P (x= 16) =  0.00735

P (x= 17) =  0.00187

P (x= 18) =  0.000259

P (x= 19) = 2 0.0000385

P (x= 20) =0.000000208

Step-by-step explanation:

This is a binomila probability distribution as the success and failure are same and number of trials is fixed.

Here p =0.52 and q= 1-0.52= 0.48

n= 20 Now the probability distribution of X = 0,1,2,--------20

Applying the binomial distribution we can find the probability  distribution of X taking the different values as

P (x= 0) = 20c0 (0.52)^0 (0.48)^20= 0.00384

P (x= 1) = 20c1 (0.52)^1 (0.48)^19=  0.000009133

P (x= 2) = 20c2 (0.52)^2 (0.48)^18=  0.00009399

P (x= 3) = 20c3 (0.52)^3 (0.48)^17= 0.0061

P (x= 4) = 20c4 (0.52)^4 (0.48)^16= 0.00281

P (x= 5) = 20c5 (0.52)^5 (0.48)^15= 0.00975

P (x= 6) = 20c6 (0.52)^6 (0.48)^14= 0.0264

P (x= 7) = 20c7 (0.52)^7 (0.48)^13= 0.05772

P (x= 8) = 20c8 (0.52)^8 (0.48)^12= 0.0202

P (x= 9) = 20c9 (0.52)^9 (0.48)^11= 0.14550

P (x= 10) = 20c10 (0.52)^10 (0.48)^10= 0.1733

P (x= 11) = 20c11 (0.52)^11 (0.48)^9= 0.17077

P (x= 12) = 20c12 (0.52)^12 (0.48)^8= 0.138751

P (x= 13) = 20c13 (0.52)^13 (0.48)^7= 0.0925

P (x= 14) = 20c14 (0.52)^14 (0.48)^6= 0.0501

P (x= 15) = 20c15 (0.52)^15 (0.48)^5= 0.0217

P (x= 16) = 20c16 (0.52)^16 (0.48)^4= 0.00735

P (x= 17) = 20c17 (0.52)^17 (0.48)^3= 0.00187

P (x= 18) = 20c18 (0.52)^18 (0.48)^2= 0.000259

P (x= 19) = 20c19 (0.52)^19 (0.48)^1= 0.0000385

P (x= 20) = 20c20 (0.52)^20 (0.48)^0= 0.000000208

The answer is c area 3

Answer

C.

Step-by-step explanation:

Answer:

0.31 x 8=2.48

    (>'-'<)

Answer:

=11/14

Step-by-step explanation:

Step-by-step explanation:

Number of blue marbles n(blue)=4

Number of red marbles n(red)=3

number of yellow marbles n(yellow)= 2

number of green marbles n(green)=5

total number of marbles n(S)=4+3+2+5=14

P(red)=n(red)/n(S)

P(red)=3/14

We have to determine the probability that the card picked is not red which means the card can be blue or yellow or green.

P(not red)=1-P(red)

               =1-3/14

                =11/14

Answer:

11/14

Step-by-step explanation:

These are all the marbles that are there:

4 blue

3 red

2 yellow

5 green

If you want to figure out the probability of a marble not being red, you can either find the probability that the marble is blue, yellow, or green or you could subtract the probability that the marble is red from 1 (same thing either way)

There are 14 marbles and 11 of them are not red, so the the probability that a marble drawn will not be red is 11/14.

Answer:

Answer: 1. x = 10, y = 6 2. x = 12, y = 3 3. x = 5, y = 2.5 4. x = 1, y = 14 5. x = 0.6, y = 7 6. x = 11, y = 1

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

It seems like the one that's most likely

Answer:

38 students

Step-by-step explanation:

100+(16x6)=196

800-196=631

4.50+12=16.5

63/116.5=38.24

Answer:

100+4.50(s)+12(s)+96 less than or equal to 800

[tex] \leqslant [/tex]

s=students

Step-by-step explanation:

they can spend up to 800 dollars OR LESS. They have a charge of 100 dollars for the bus, plus a charge of 4.50 per student for lunches, plus a charge of 12 dollars per student for admissions plus 16 dollars times 6 (96) for the chaperones. All of this gives us our inequality above.

I really hope this helps!

PS: the reason why the adults don't get their own variable is because it says to define the variable not variable(s). You also cannot group the adults with the students because the student costs and the adult costs are two totally seperate and different amounts. if you just used variable p for people it wouldn't work because you wouldn't know how many adults were required to pay adult admission.

Answer:

7

Step-by-step explanation:

49 /7 = 7

Answer:

7:)

Step-by-step explanation:

group 1-ooooooo=7

group2-ooooooo

ooooooo=14

group 3-ooooooo

ooooooo               ooooooo=21

group 4-ooooooo            ooooooo=28

ooooooo               ooooooo

group 5-ooooooo            ooooooo

ooooooo               ooooooo          ooooooo=35

group 6-ooooooo            ooooooo          ooooooo

ooooooo               ooooooo          ooooooo=42

group 7-ooooooo            ooooooo          ooooooo

ooooooo               ooooooo          ooooooo

ooooooo=49

Answer:

[tex]y=15e^{e^{- \frac{t}{100}}}kg[/tex]

Step-by-step explanation:

Let y(t) represent the amount of salt in the tank after t minutes. Therefore:

[tex]\frac{dy}{dt}=rate\ in-rate\ out[/tex]

Pure water is entering at a rate of 10 L/min, therefore rate in = 0

The tank contains 1000 L of brine (salt water) with 15 kg of dissolved salt, and a mixed solution leaving at 10 L/min hence;

[tex]rate\ out = \frac{y(t)\ kg}{1000\ L}*10\ L/min= \frac{y(t)\ kg}{100\ min}\\\\Therefore:\\\\\frac{dy}{dt}=0- \frac{y(t)}{100} \\\\\frac{dy}{dt}=- \frac{y(t)}{100}\\\\\frac{dy}{y}=- \frac{1}{100}dt\\\\\int\limits{\frac{dy}{y}} =\int\limits- \frac{1}{100}dt\\\\lny=- \frac{t}{100}+C\\\\Taking\ exponetial\ of\ both\ sides:\\\\y=e^{- \frac{t}{100}+C}\\\\y=e^C.e^{- \frac{t}{100}}\\\\y=Ae^{- \frac{t}{100}}(A=e^C)\\\\at\ y=15kg, t=0\\\\15=Ae^{e^{- \frac{0}{100}}}\\\\A=15\\\\[/tex]

[tex]y=15e^{e^{- \frac{t}{100}}}kg[/tex]

Answer:

10.16°

Step-by-step explanation:

To solve for this question, we use Sine rule

Sin θ = Opposite/Hypotenuse

θ =??

Opposite = Height of the truck = 3 feet

Hypotenuse = length of the ramp = 17 feet

Hence

Sin θ = 3/17

Sin θ = 0.1764705882

θ = arcsin(0.1764705882)

θ = 10.16424862°

Approximately

10.16°

The angle the ramp makes with the ground is 10.16°

The angle that the ramp makes with the ground is 10.2 degrees

The set-up will give a right triangle.

Given the following parameters:

To get the angle of elevation, we will use the SOH CAH TOA identity as shown:

Sin theta = opp/hyp

Sin theta = 3/17

theta = arcsin(3/17)

theta = 10.2 degrees

Hence the angle that the ramp makes with the ground is 10.2 degrees

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