John missed 4 problems on a test but did 75% of them correctly. How many problems
were there in the test?

Answer:  [tex]a_{n}=5000(1.02)^{n-1}[/tex]

Step-by-step explanation:

to get the rate do:

5100/5000 to get 1.02

Also for geometric sequence, the exponent 'n' is always subtracted by 1

Therefore, your answer is:

[tex]a_{n}=5000(1.02)^{n-1}[/tex]

Answer:

SORRY I CAN NOT HELP YOU

Using the Fundamental Counting Theorem, it is found that:

It is a theorem that states that if there are n things, each with [tex]n_1, n_2, \cdots, n_n[/tex] ways to be done, each thing independent of the other, the number of ways they can be done is:

[tex]N = n_1 \times n_2 \times \cdots \times n_n[/tex]

For the 2 letters(26 outcomes each), and 3 numbers(10 outcomes each), we have that the parameters are:

[tex]n_1 = 26, n_2 = 26, n_3 = 10, n_4 = 10, n_5 = 10[/tex]

Hence the number of catalog numbers is:

[tex]N = 26^2 \times 10^3 = 676000[/tex]

The ID number is divisible by 5 if the last digit is either 5 or 0, hence [tex]n_5 = 0[/tex] and the probability is:

[tex]p = \frac{26^2 \times 10^2 \times 2}{26^2 \times 10^3} = 0.2[/tex]

There is a 0.2 = 20% probability that the ID number is divisible by 5.

More can be learned about the Fundamental Counting Theorem at https://brainly.com/question/24314866

#SPJ1

Answer:

-47

Step-by-step explanation:

First you use PEMDAS, so you start with the exponent.

-5^2 = 25

Then you multiply the -2!!! Not the 2 with the 25, multiplying the 2 is a common mistake.

When you multiply the -2, it results in:

3 - 50

= -47

Answer:

-47

Step-by-step explanation:

Original Equation:

[tex]f(-5)=3-2(-5)^2[/tex]

Square the -5 (this cancels out the negative sign

[tex]f(-5)=3-2(25)[/tex]

Multiply 2 and 25

[tex]f(-5) = 3-50[/tex]

Subtract 50 from 3

[tex]f(-3) = -47[/tex]

I'm a bit confused by what you mean factor the equation? Given the context. But I'm going to assume the equation is: [tex]f(x)=3-2x^2[/tex]. Which isn't exactly factorable.

This is the new coordinate for Z  (-1, 3)

A graph can be defined as a pictorial representation or a diagram that represents data or values.

The point Z is (-3, 4) is translated using the rule

x,y  → (x+2),(y-1)

Then simply plug-in the values of x and y which are x = -3 and y = 4

x,y → ((-3) +2), (4 -1)  which is (-1, 3)

Hence, this is the new coordinate for Z  (-1, 3)

Learn more about graph

https://brainly.com/question/16608196

#SPJ1

Step-by-step explanation:

so, what do we need to do ?

just solve these equations and find Sam's age (and Harry's) ?

x = 3y

x = 10 + 2y

so, we simply use the first equation in the second :

3y = 10 + 2y

y = 10

x = 3y = 3×10 = 30

Sam is currently 30 years old, Harry is 10.

Answer:

Step-by-step explanation:

let the number at unit place=x

ten's place=y

hundred's place=z

x,y,z are integers.

x+y+z=9

also digit=100z+10y+x

y=2z

x+2z+z=9

x+3z=9

x=1,3,5,7,9

for x=1

1+3z=9

3z=9-1=8

z=8/3 (rejected as z is an integer.)

when x=3

3+3z=9

3z=9-3=6

z=6/3=2

z=2

y=2z=2×2=4

so number=100×2+10×4+3=200+40+3=243

Using linear pairs,

[tex]115+5x=180\\\\5x=65\\\\x=\boxed{13}[/tex]

By the exterior angle theorem,

[tex]2y=45+5(13)\\\\2y=45+65\\\\2y=110\\\\y=\boxed{55}[/tex]

Answer:

30245x⁴ - x³ + 90735x - 3

Step-by-step explanation:

1. Expand the expression

(30245x - 1)(x³ + 3)

2. Multiply

30245x x x³ + 30245x x 3-(x³ + 3)

3. Determine the sign

304245x⁴ + 90735x - (x³ + 3)

4. Rewrite the expression

30425x⁴ + 90735x - x³ - 3

= 30245x⁴ - x³ + 90735x - 3

(brainliest will be appreciated :)

An equation represents a line that passes through (-2, 4) and has a slope of 2/5 is y-4 = 2/5(x+2)

The equation of a line in point-slope form is expressed as;

y-y1 = m(x - x1)

where

m is the slope

(x1, y1) is any pint on the line

Substitute the given parameter

y - 4 = 2/5(x-(-2))

y-4 = 2/5(x+2)

Hence an equation represents a line that passes through (-2, 4) and has a slope of 2/5 is y-4 = 2/5(x+2)

Learn more on equation of a line here: https://brainly.com/question/13763238

#SPJ1

Answer:

b. 0

c. 4

d. 2

e. [tex]\frac{76}{35}[/tex]

Step-by-step explanation:

b.) When translated it will become this expression 10 - [(2x15)/3] = 0

c.) It will become [tex]\frac{4(12-7)}{5}[/tex]

d.) This will transform to  [tex]\frac{(\frac{78-13}{5}) + 5}{9}[/tex]

e.) The first eq is [tex]\frac{4(7+3)}{8}[/tex], then after the changes it becomes [tex]\frac{4[\frac{(7+3)+9}{7}]}{5}[/tex]

Answer:

In 3 years, Dianna will be 4 times as old as she was 33 years ago. How old is Dianna now?

Choose the most logical value for the variable to represent.

x= Diana's age now

This question is impossible to fully answer without further context. (Who is Dianna? Why do we need her age?)

However, it can be noted that [tex]x[/tex] is easily the most common variable name whenever you have a missing value in an equation. Generally, it is understood by mathematicians that [tex]x[/tex] and most other letters denote an unknown value, something to either use in solving the equation or something to find on its own.

The maximum number of the data points that may not actually be on the line is 15

The number of points is given as:

Points = 15

A line of best fit implies that the model is a regression model

In a regression model, all the data points may not pass through the line of best fit.

This means that the maximum number of the data points that may not actually be on the line is 15

Read more about line of best fit at:

https://brainly.com/question/10165160

#SPJ1

Answer:

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

Let the numbers be:

Since both M and E include B, we can show the total as:

and

The total can be expressed as:

Substitute values and solve for B:

This is matching the answer choice B)

Maths be A and English be B

A intersection B be X

Option B

The volume of the cuboid is 183.96 m³

A cuboid is a plane shape with a six-faced solid called a hexahedron. The volume of a cuboid is Length × width × height

From the information given:

The volume of the cuboid is;

=  (7.3 × 6 × 4.2) m³

= 183.96 m³

Learn more about the volume of a cuboid here:

https://brainly.com/question/46030

#SPJ1

Answer:

[tex]period \: of \: sin(2x) = \pi \\ period \: of \: cos \frac{x}{4} = 8\pi \\ period \: of \: tan \frac{x}{3} = 3\pi[/tex]

Step-by-step explanation:

Hello !

[tex]periodicity \: of \: a.sin(bx + c) + d = \\ \frac{periodicity \: of \: sin(x)}{ |b| } \\ periodicit \: of \: sin \: (x) \: is \: 2\pi = \\ \frac{2\pi}{2} \: simplify = \pi \\ periodicity \: of \: a.cos(bx + c) = \\ \frac{periodicity \: of \: cos(x)}{ |b| } \\ periodicit \: of \: cos \: (x)is \: 2\pi = \\ \frac{2\pi}{1\frac{1}{4} } \: simplify \: = 8\pi \\ periodicity \: of \: a.tan(bx + c) = \\ \frac{periodicity \: of \: tan(x)}{ |b| } \\ periodicity \: of \: tan(x) \: is \: \pi \\ \frac{\pi}{} \frac{1}{3} [/tex]

Based on the amounts that Morgan Cruise is getting paid, her self-employment tax will be $22,916.63.

taxable earnings from self-employment:

= 92.35% x 221,600

= $204,647.60

Self-employment tax is:

= (12.4% x 137,700 limit) + (2.9% x 200,000 limit) + (0.9% x (204,647.60 - 200,000)

= 17,074.80 + 5,800 + 41.83

= $22,916.63

Find out more on self-employment tax at https://brainly.com/question/8029273.

#SPJ1

There are 28 elements in the sample space and the probability of a green card is 9/28

The given parameters are:

Red = 7

Green = 9

Blue = 12

The elements in the sample space is:

Elements =7 + 9 + 12

Evaluate

Elements = 28

Hence, there are 28 elements in the sample space

This is calculated as

P =Green/Elements

So, we have:

P = 9/28

Hence, the probability of a green card is 9/28

Read more about probability at:

https://brainly.com/question/11234923

#SPJ1

Answer:

3.44

Step-by-step explanation:

Another way to rewrite this question is 18.576/5.4. (18.576 divided by 5.4), and the answer to that is 3.44.

The circumference of the larger circle is about 12.57 inches. The circumference of the smaller circle is about 3.14 inches. So, the total length of gold leaf on a tag is approximately 15.71 inches.

The circumference will be:

= 2πr

= 2 × 3.14 × 2

= 12.57 inches.

The circumference of the smaller circle will be:

= 2πr

= 2 × 3.14 × 0.5

= 3.14

The total length will be:

= 12.57 + 3.14

= 15.71 inches.

Learn more about circles on:

brainly.com/question/27991521

#SPJ1

Answer:

constant (unchanged) ratio of two variable quantities

Step-by-step explanation:

y = k x ( or y = k x )

y = 15 when x = 24, find x when y = 25. find the constant of variation.

The question asks the value of f(x) when x = 4 in the equation

x = 4 is less than or equal to 4, so we use the first equation in the piecewise functions => {4x when x≤4}

Solving for f(x):

4(4)=16

16 is the answer!

Hope it helps!

The values of the functions from the graph and table are; (f ° g)(4) = 4 and x = 0 at  (g ° f)(x) = 1

1) We want to find the value of (f ° g)(4). This can also be expressed as;

f(g(4))

Now, from the given graph, g(4) = 2. Thus;

f(g(4)) = f(2)

From the table, f(2) = 4. Thus;

(f ° g)(4) = 4

2) We are given; (g ° f)(x) = 1

This is also expressed as;

g(f(x)) = 1

From the graph g(x) = 1 is at x = 1. Thus;

f(x) = 1 and from the tabe;

x = 0 at f(x) = 1

Read more about Function Inputs at; https://brainly.com/question/10283950

#SPJ1

For the given systems A and B:

1) Replace the first equation of A by the sum between the two equations of A.

2) Yes, the systems are equivalent.

Here we have the two systems of equations:

A:

6x - 5y = 1

-2x + 2y = -1

B:

4x - 3y = 0

-2x + 2y = -1

The second equation is the same in both systems, so we only look at the first equations.

In A we have:

6x - 5y = 1

If we add the second equation of A, then we get:

(6x - 5y) + (-2x + 2y) = 1 + (-1)

4x - 3y = 0

This is the first equation of B.

Then we need to replace the first equation by the sum between the first and second equations.

2) Are the systems equivalent?

Yes, because we did not "modify" system A, we just rewrite it and we got system B, then both systems have the same solutions.

If you want to learn more about systems of equations:

https://brainly.com/question/847634

#SPJ1

Answer: A) , Yes

Step-by-step explanation:

A) The collection of positive integers whose sum is 100 are: 23, 17, 6, 54, 0.

B) Another collection of positive integers whose sum is 100 are: 13, 27, 4, 56, 0.

C) Due to the fact that the units can be commuted, their sum is always equal to 20.

D) The smallest possible value is 0 and the largest is 57.

A) The formation of a collection of positive integers can be done by trial and error. For example, only using the digits {0, 1, 2, 3, 4, 5, 6, 7}.

For example, we can have;

23 + 17 + 6 + 54 + 0 = 100

Where the numbers used are: 23, 17, 6, 54, 0.

B) Another example is;

13 + 27 + 4 + 56 + 0 = 100

C) If we add the units digits of these 5 numbers, we get:

3 + 7 + 6 + 4 + 0 = 20

Now, if we compute the units digits between the different numbers, to get for example: 27, 13, 6, 54, 0

The sum is still equal to 100, and the units digits are the same ones, so we still have that the sum of the units digits is equal to 20.

d) The smallest integer that we use is 0.

For the largest we just commute the tens and units digits so we make the larger integer possible, which is:57.

Read more about sequence of integers at; https://brainly.com/question/13026659

#SPJ1

Answer:

Step-by-step explanation:

100% - 20% = 80% = 64

so

64 : 80 * 100 = 80

check

80 - 20% = 64

Answer:

3x^2+3x/2-9

Step-by-step explanation:

collect like term

Answer:

  d. Reflect across the y-axis and translate 9 units to down

Step-by-step explanation:

Reflection of the graph of a function across the y-axis is accomplished by replacing x with -x in the function definition.

Translation of the graph of a function by k units upward is accomplished by adding k to the function value.

Here, we observe that f(x) is g(x) with x replaced by -x. That means the graph of f(x) will be the graph of g(x) reflected across the y-axis.

The function f(x) is the function g(x) with -9 added to it. That translates the graph downward by 9 units.

These transformations, reflection across the y-axis and translation 9 units downward, can be seen in the attached graphs. Corresponding points are marked.