9/20/2020
Print Assessment
18. The population of Nevada was estimated at 2,839,000 in 2014. What is 2,839,000
expressed in scientific notation?
A.
2.839 X 106
В.
2.839 x 107
C.
28.39 X 10'
D.
28.39 x 10

Answer:

6, 9, 1

Step-by-step explanation:

a coefficient is a numerical or constant quantity placed before and multiplying the variable in an algebraic expression (e.g. 4 in 4x y).

Answer:

6 and 9

Step-by-step explanation:

I hope this helped!

Answer:

(g · h)(t) = -6t - 6

Step-by-step explanation:

To find (g · h)(t), multiply g(t) by h(t).

g(t) = 3t + 3

h(t) = -2

(g · h)(t) = (-2)(3t + 3)

(g · h)(t) = -6t - 6

Answer:

The probability that exactly 97 of them finished the marathon​ is 0.221.

Step-by-step explanation:

We are given that in 2019, approximately 97.4% of all the runners who started the Boston Marathon were able to complete the 42.2 km race.

100 runners are chosen at random.

The above situation can be represented through the binomial distribution;

[tex]P(X = x) = \binom{n}{r} \times p^{r} \times (1-p)^{n-r};x = 0,1,2,3,......[/tex]

where, n = number of trials(or samples) taken = 100 runners

           r = number of success = exactly 97

           p = probability of success which in our question is the probability

                 that runners finished the marathon​, i.e; p = 0.974

So, X ~ Binom(n = 100, p = 0.974)

Now, the probability that exactly 97 of them finished the marathon​ is given by = P(X = 97)

         P(X = 97) = [tex]\binom{100}{97} \times 0.974^{97} \times (1-0.974)^{100-97}[/tex]

                          = [tex]161700 \times 0.974^{97} \times 0.026^{3}[/tex]

                          = 0.221

Hence, the required probability is 0.221.

Using the binomial distribution, it is found that there is a 0.2207 = 22.07% probability that exactly 97 of them finished the marathon​.

For each runner, there are only two possible outcomes, either they finished the marathon, or they did not. The probability of a runner finishing the marathon is independent of any other runner, which means that the binomial distribution is used to solve this question.

Binomial probability distribution

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

The parameters are:

In this problem:

The probability that exactly 97 of them finished the marathon​ is P(X = 97), hence:

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = 97) = C_{100,97}.(0.974)^{97}.(0.026)^{3} = 0.2207[/tex]

There is a 0.2207 = 22.07% probability that exactly 97 of them finished the marathon​.

A similar problem is given at https://brainly.com/question/24863377

Answer:

7) no 8) no 9) no 10)yes 11) yes 12) yes 13) k=42 14) c=30 15)a=42

Step-by-step explanation:

Answer:

do you still need help

Step-by-step explanation:

Answer:

3/20

Step-by-step explanation:

P(heads) = 1/2

P(less than 4) = 3/10

P(heads then less than 4) = (1/2) (3/10) = 3/20

Answer:

[tex]\frac{dy}{dx}=y'=\frac{\sec^2(x-y)(8+x^2)^2+2xy}{(8+x^2)(1+\sec^2(x-y)(8+x^2))}[/tex]

Step-by-step explanation:

So we have the equation:

[tex]\tan(x-y)=\frac{y}{8+x^2}[/tex]

And we want to find dy/dx.

So, let's take the derivative of both sides:

[tex]\frac{d}{dx}[\tan(x-y)]=\frac{d}{dx}[\frac{y}{8+x^2}][/tex]

Let's do each side individually.

Left Side:

We have:

[tex]\frac{d}{dx}[\tan(x-y)][/tex]

We can use the chain rule, where:

[tex](u(v(x))'=u'(v(x))\cdot v'(x)[/tex]

Let u(x) be tan(x). Then v(x) is (x-y). Remember that d/dx(tan(x)) is sec²(x). So:

[tex]=\sec^2(x-y)\cdot (\frac{d}{dx}[x-y])[/tex]

Differentiate x like normally. Implicitly differentiate for y. This yields:

[tex]=\sec^2(x-y)(1-y')[/tex]

Distribute:

[tex]=\sec^2(x-y)-y'\sec^2(x-y)[/tex]

And that is our left side.

Right Side:

We have:

[tex]\frac{d}{dx}[\frac{y}{8+x^2}][/tex]

We can use the quotient rule, where:

[tex]\frac{d}{dx}[f/g]=\frac{f'g-fg'}{g^2}[/tex]

f is y. g is (8+x²). So:

[tex]=\frac{\frac{d}{dx}[y](8+x^2)-(y)\frac{d}{dx}(8+x^2)}{(8+x^2)^2}[/tex]

Differentiate:

[tex]=\frac{y'(8+x^2)-2xy}{(8+x^2)^2}[/tex]

And that is our right side.

So, our entire equation is:

[tex]\sec^2(x-y)-y'\sec^2(x-y)=\frac{y'(8+x^2)-2xy}{(8+x^2)^2}[/tex]

To find dy/dx, we have to solve for y'. Let's multiply both sides by the denominator on the right. So:

[tex]((8+x^2)^2)\sec^2(x-y)-y'\sec^2(x-y)=\frac{y'(8+x^2)-2xy}{(8+x^2)^2}((8+x^2)^2)[/tex]

The right side cancels. Let's distribute the left:

[tex]\sec^2(x-y)(8+x^2)^2-y'\sec^2(x-y)(8+x^2)^2=y'(8+x^2)-2xy[/tex]

Now, let's move all the y'-terms to one side. Add our second term from our left equation to the right. So:

[tex]\sec^2(x-y)(8+x^2)^2=y'(8+x^2)-2xy+y'\sec^2(x-y)(8+x^2)^2[/tex]

Move -2xy to the left. So:

[tex]\sec^2(x-y)(8+x^2)^2+2xy=y'(8+x^2)+y'\sec^2(x-y)(8+x^2)^2[/tex]

Factor out a y' from the right:

[tex]\sec^2(x-y)(8+x^2)^2+2xy=y'((8+x^2)+\sec^2(x-y)(8+x^2)^2)[/tex]

Divide. Therefore, dy/dx is:

[tex]\frac{dy}{dx}=y'=\frac{\sec^2(x-y)(8+x^2)^2+2xy}{(8+x^2)+\sec^2(x-y)(8+x^2)^2}[/tex]

We can factor out a (8+x²) from the denominator. So:

[tex]\frac{dy}{dx}=y'=\frac{\sec^2(x-y)(8+x^2)^2+2xy}{(8+x^2)(1+\sec^2(x-y)(8+x^2))}[/tex]

And we're done!

Answer:

23

Step-by-step explanation:

Order of Operations: BPEMDAS

1. Brackets

2. Parenthesis

3. Exponents

4. Multiplication

5. Division

6. Addition

7. Subtraction

Left to Right

Step 1: Write expression

7 + (5 - 9)2 + 3(16 - 8)

Step 2: Parenthesis (subtraction)

7 + (-4)2 + 3(8)

Step 3: Parenthesis (multiplication)

7 - 8 + 24

Step 4: Subtract

-1 + 24

Step 5: Add

23

Answer:

13x - 3

Step-by-step explanation:

Step 1:

6x - ( 5x ) + 2x + ( - 3 )         Equation

Step 2:

6x + 5x + 2x - 3     Open Parenthises

Answer:

13x - 3       Add

Hope This Helps :)

g(x) = 3x

g(x) = 3( x )

g( f(x) ) = 3( f(x) ) ... replace every x with f(x)

g( f(x) ) = 3( 2x-1 ) .... plug in f(x) = 2x-1

g( f(x) ) = 3( 2x) + 3( -1 ) ... distribute

g( f(x) ) = 6x - 3

You are correct in saying D is the answer

Answer:

C 4 glasses

I took the thing

Answer: A bottle of juice cost $0.28

Step-by-step explanation:

12x = $3.36

Divide 12 on both sides

x = $0.28

Answer:

7

Step-by-step explanation:

Positive integer = k

If Arden's Grandpa multiplies the integer by the number 1357, or will become 1375 × k = 1375k

If he ends up with a four digits result of 9502, to get the least value of k that will make it work, we will equate 1357k to 9502.

1357k ≥ 9502 (since we need the least value, this also means k can be greater than this value).

Divide both sides by 1357

1357k ≥ 9502

1357k/1357 ≥ 9502/1357

k ≥ 7.00

Hence the smallest value of k that will make this work is 7

D. Every other month you are paid, just estimate an amount times 6 and just pick the most realistic answer

Answer:

ob) $2,696.25

Step-by-step explanation:

its B because you divide your annual salary by 2*12 (semimonthly means 2 times a month and theirs 12 months in a year) so that would be 24 divided by $64,710 which is $2,696.25

Answer:

D is the correct answer

Answer:

option D is the answer

Step-by-step explanation:

the -2 tells you where the y intercept is and the 2/3x tells you what the slope of the line is.

Answer:

D all of these

Step-by-step explanation:

When reading challenging information, you should pay close attention to the diagrams, important points, visuals, etc. The answer to this question is D, or all of them, as a result.

Reading comprehension, vocabulary, phonics, fluency, phonemic awareness, and many other skills are important to keep in mind when reading. Each of them plays a unique part in any literary work.

Each and every reader must adhere to a number of requirements before reading. You must focus on the diagram first and foremost when conducting the survey because it quickly and efficiently interprets all of the data. However, in order to absorb the information quickly, the primary ideas and visual aids are equally crucial.

Hence option D is correct.

To learn more about Reading strategies;

https://brainly.com/question/15169226

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Answer:

X=7/6y+-1/3

Step-by-step explanation:

It will be hard for me to demonstrate the equation

Step-by-step explanation:

Mmm I mean what you had to do was just take the number and divide by the total number of people in that area. For Math it was 120 and for Social Studies it was 70. And then you just turn the decimals that you get into percentages. That's all!

Answer: 55 senior tickets

Step-by-step explanation:

The tickets that were sold to senior citizen is 55.

When two or more equations are solved together and the solution satisfies all the equation , then the set of equation are termed as system of equations.

It is given in the question that

A movie theater has 400 seats

Tickets at the theater cost

$8 for students

$7 for senior citizens

$10 for adults

All the tickets were sold

Total revenue made from sales = $3,535

If the number of adult tickets sold was 10 less than the number of student and senior tickets combined

Let the ticket sold to students = x

Sold to senior citizen = y

Sold to adults = z

z = (x+y) - 10

x+y+z = 400

x+y+x+y-10= 400

2(x+y) = 410

x+y = 205

z= 205-10

z = 195

8 *x +7*y +10*z = 3535

8x+7y +1950 = 3535

8x+7y = 1585

x+y = 205

8x+8y=1640

y =55

Therefore the tickets that were sold to senior citizen is 55.,

To know more about System of equations

https://brainly.com/question/12895249

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Answer: how many square feet are there? multiple each square foot by 2

Step-by-step explanation:

Answer:

28

Step-by-step explanation:

7+21=28

a-7=21

Answer: a=28

Step-by-step explanation:

Answer:

28

Step-by-step explanation:

your domain is X 4 times 5 is 20 plus 8 is 28

Step-by-step explanation:

I think the answer is 3x square multiplied by 1

Coz anything raised to power 0 will always equal to 1

Answer:

4 multiplied by m equals 52

Answer:

=

Step-by-step explanation:

The absolute value of 9 is 9.

Answer:

-8

Step-by-step explanation:

took the test

Answer:

An 8 inch Circle has a diameter of 8 inch, whereas the 8 inch square has length and width of 8 inch

Step-by-step explanation:

For a circle to be an 8 inch, the diameter should be 8 inches. Square's sides are equal, so we would have 8 inches on each side of the square. The area of this 8 inch square would be 64 in^2, whereas the 8 inch circle's area is 50.24 inch ^2. (because (3.14)(r^2))

Answer:

3:1

Step-by-step explanation:

Driver : Follower --> 15:5 which is reduced to 3:1