Shaun keeps his baseball card collection in an album. The album has 25 pages, and each page can hold 9 cards. Four pages are empty, and the rest are full. Write an equation that can be used to determine the number of baseball cards b in Shaun's collection.

Answers

Answer 1

Answer:

25x5-4=b

Step-by-step explanation:

Answer 2

The equation to determine the number of baseball cards in Shaun's collection is b = (25 - 4) × 9

Number of pages in the album = 25 pages

Number of empty pages = 4

Number of full pages = 25 pages - 4 pages = 21 pages.

Number of cards that each page can hold = 9 cards.

Therefore, the equation to determine the number of baseball cards in Shaun's collection will be:

b = (25 - 4) × 9

b = 21 × 9

b = 189 cards.

There are 189 cards in the collection.

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https://brainly.com/question/18084619


Related Questions

- sinx
dy/dx = ?
cosx or -cosx?

Answers

Step-by-step explanation:

y=-sinx

dy/dx = d(-sinx)/dt= -cosx

hope it helps

Answer:

[tex]y = - \sin(x) \\ \frac{dy}{dx} = - \frac{d}{dx} ( \sin(x) ) \\ \boxed{ \frac{dy}{dx} = - \cos(x) }[/tex]

dy/dx = -cos(x) is the right answer.

For a function f(x), the difference quotient is 21x2 + 21xh + 7h2 + 2. Which statement describes how to determine the average rate of change of f(x) from x = –3 to x = 2? Substitute –3 for x and 2 for h in the difference quotient. Substitute –3 for x and 5 for h in the difference quotient. Substitute 2 for x and –3 for h in the difference quotient. Substitute 2 for x and –5 for h in the difference quotient.

Answers

Answer:

Substitute –3 for x and 5 for h in the difference quotient.

Step-by-step explanation:

The difference quotient for the function f(x) is  21x² + 21xh + 7h² + 2. Now, we know that the difference quotient equal f(x + h) - f(x) = 21x² + 21xh + 7h² + 2. The change in x is h = x₂ - x₁. So, if x changes from x = -3 to x = 2,  where x₁ = -3 and x₂ = 2, h = x₂ - x₁ = 2 - (-3) = 2 + 3 = 5.

So to find the average rate of change of f(x) from x = -3 to x = 2, we substitute x = -3 and h = 5 into the difference equation  f(x + h) - f(x) = 21x² + 21xh + 7h² + 2. Since, x starts at x = -3 and increases by 5 units to x = 2.

Answer:

(on edge) B. Substitute –3 for x and 5 for h in the difference quotient.

Step-by-step explanation:

Tritium is a radioactive isotope of hydrogen that decays by about 5% per year. A large bottle of water that contained 856,000 tritium atoms remained undisturbed for 13 years. How much tritium does the bottle contain now?

Answers

Answer: if you’re rounding to the nearest whole number it’s

439,421

Step-by-step explanation:

The number of tritium atoms that the bottle contains now is; 439,384.8 atoms.

How much tritium does the bottle contain now?

It follows from the task content that;

The large bottle of water that contained 856,000 tritium atoms remained undisturbed for 13 years.

On this note, the number of atoms remaining is;

N = 856,000 × (0.95)¹³

N = 856,000 × 0.5133

N = 439,384.8 atoms

Read more on radioactive decay;

https://brainly.com/question/1383030

#SPJ2

Can anybody help me with this?

Answers

The answer is 183 and the is 123 and 194 and 823

Weldon bought a pair of hiking boots that cost $64.00 before tax. If a 7.5% tax is added to Weldon's total, how much did he spend in total on the hiking boots? Round to the nearest cent, if necessary.

Answers

Answer:

68.80

Step-by-step explanation:

64 x (7.5% +1)

64 x 1.075 = 68.80

Jim is 50% as tall as a ladder. The ladder is 12 feet tall. How tall is Jim?

Answers

Answer:

Jim is 6ft tall

Step-by-step explanation:

This ladder is 12 feet tall. And Jim is half of it (Fifty %) So, Therefore Jim is 6ft tall

6 ft tall

50% of (multiplied by) 12 feet equals 6 feet

Steve spent 1/4 of his monthly salary for rent and 1/7 of his monthly salary for his utility bill. If $867 was left, what was his monthly salary?

Answers

Answer:x=(45/31)*1426=$2070. ANSWER

20% of that is $414

1/9 of that is $230

They add to $644

What is left is $1426.

Step-by-step explanation:

Answer:1428

Step-by-step explanation:

x−1128x

=867

(1−1128)x

=867

Factor out x.

1728x

=867

Simplify.

x

=1428

Solve for x.

which is the equation of a parabola with vertex (0,0) that opens to the left and has a focal width of 12? please select the best answer from the choices provided

Answers

Answer:

Mention any Two study routes(courses or program) that higher education could offer.

3(2x + y) + 4(x – 4y) + x2

Answers

X^2+10x-13y
Hope I helped :D

Answer:

12x-13y

Step-by-step explanation:

6x+3y+4x-16y+2x

combine like terms

12x-13y

A rectangle's length, f(x), is 2 more than three times a unit length, x, and its width, g(x), is twice the unit length, x. Combine functions f(x) and g(x) to get h(x). Which is h(x) written in the simplest form? H(x) = 5x + 2 h(x) = 6x + 2 h(x) = 6x2 + 2 h(x) = 6x2 + 4x

Answers

Answer:

[tex]h(x)=6x^2+4x[/tex]

Step-by-step explanation:

As the rectangle's length, f(x), is 2 more than three times a unit length, x, so,

f(x)=3x+2

As the rectangle's width, g(x), is twice the unit length, x, so,

g(x)=2x.

The length and width of the rectangle are related to the area and the perimeter of the rectangle. So, the length, f(x), and the width, g(x), can be combined to give the area or perimeter, h(x).

So, h(x) might be the area or the perimeter of the rectangle.

If h(x) is the area, then

[tex]h(x)=f(x) \times g(x)[/tex] [as area=lenght x width]

[tex]\Rightarrow h(x)=(3x+2)\times 2x[/tex]

[tex]\Rightarrow h(x)=6x^2+4x[/tex] (this is in the given options)

If h(x) is the perimeter, then

[tex]h(x)=2\{f(x) + g(x)\}[/tex] [as perimeter=2(lenght + width)]

[tex]\Rightarrow h(x)=2\{(3x+2)+ 2x\}[/tex]

[tex]\Rightarrow h(x)=2(5x+2)[/tex]

[tex]\Rightarrow h(x)=10x+4[/tex] (not in the given options)

So, from the given options [tex]h(x)=6x^2+4x[/tex] is correct.

Answer:

h(x) = 6x^2 + 4x

Step-by-step explanation:

Got it right on lesson.

f(x)=2x^3-7x^2-10x+24
•use factor theorem to show that (x+2) is a factor of f(x)

f(x)=2x^3-7x^2-5x+4
•find the remainder using synthetic division when f(x) is divided by (x-1)
•use factor theorem to show that (x+1) is a factor of f(x)

Answers

Answer:

Solved in the diagram

Needs to be 20characters long


PLEASE HELP!!! I REALLY NEED THIS

Answers

Answer:

The length of the third side is √73

Step-by-step explanation:

To find the third side, we use the Pythagorean Theorem: a² + b² = c²

a² and b² are the two smaller sides

c² is the longest side

The two shortest sides are 4√2 and ?

The longest side is 9

a² = 4√2²

b² = ?

c² = 9²

Now we put together the equation:

4(√2)² + b² = 9²

The square of √2 is 2

4 × 2 + b² = 9²

Multiply 4 and 2 to get 8

8 + b² = 9²

Calculate 9 to the power of 2 and get 81

8 + b² = 81

Subtract 8 from both sides

8 + b² - 8 = 81 - 8

Subtract 8 from 81 to get 73

b² = 73

Take the square root of both sides of the equation

√b² = √73

Simplify

b = √73

Length of third side: √73

Answer in decimal form: 8.5440037453175311678716483262397

What is an equation of the line that passes through the points (4,-2) and (8,3)

Answers

Answer:

I think its y=mx

Step-by-step explanation:

not sure :)

Evan measured a house and made a scale drawing. The scale of the drawing was 3 centimeters = 7 meters. What is the scale factor of the drawing? Simplify your answer and write it as a fraction. ​

Answers

390 because Evan measured a house and made a scale drawing

I need help on this problem ASAP !!! :)

Answers

Answer:

[tex]\displaystyle 8,9[/tex]

Step-by-step explanation:

Deduct one from nine to get eight, then use the Pythagorean Theorem:

[tex]\displaystyle a^2 + b^2 = c^2 \\ \\ 8^2 + 4^2 = x^2 \hookrightarrow 64 + 16 = x^2 \hookrightarrow \sqrt{80} = \sqrt{x^2}; 4\sqrt{5}\:[or\:8,94427191...] = x \\ \\ \boxed{8,9 \approx x}[/tex]

I am joyous to assist you at any time.

We have a circle with origin O, diameter AD and AB||CB. Prove AB=CD. ​

Answers

Answer:

draw a start to D to A and to B

then put some period to O

Step-by-step explanation:

THANKS ME LATER TYYY AND MAKE ME BRAINLESS

A (x) = x ^ 4-2022x ^ 3-2022x ^ 2-2022x-2022
A (2023)?

Answers

Answer:

1

Step-by-step explanation:

Through simply substituting your value into everywhere there is an 'x', you can get your answer.

[tex]A(2023)=(2023)^4-2022(2023)^3-2022(2023)^2-2022(2023)-2022\\A(2023)=1[/tex]


The bottom of a ladder must be placed 4.6 feet away
from a wall for the safety of the person climbing the
ladder. The ladder is 15.2 feet long. How high up does
the ladder reach?

Answers

Answer:

2.44ft

Step-by-step explanation:

In this problem, we are going to use Pythagoras theorem to solve for the height

given

x= 4.6 ft

hypothenus=15.2

y=?

we know that

hyp^2=x^2+y^2

15.2=4.6^2+y^2

15.2-4.6^2=y^2

15.2-21.16=y^2

5.96=y^2

√5.96=y

y=2.44ft

the height of the ladder is 2.44ft

hmm i get it very well then thanks alot

Answers

Answer:

B. 1002

Step-by-step explanation:

0.o :P XD :V

Which statements are true when solving x^2=81

Answers

Answer:

d.) the only solution is 9.

Step-by-step explanation:

The only way to solve this equation is to get the square root:

x^2 = 81

[tex]\sqrt{x^2}[/tex] = [tex]\sqrt{81}[/tex]

x = 9

The square root of 81 is 9 and the square root of x^2 is just x.

Please mark me the brainliest!?!

Answer:nahh , had that question & i picked "D" but it said its E & A.

Step-by-step explanation:

John and kim shared $2400 dollars in the ratio 2:6.What is kim's share ?

Answers

Answer:

she has $1,800

Step-by-step explanation:

to solve we divide 2,400 by 8, which is the total amount of the 2 together. then we get 300 per share, and so we multiply that by kim's 6. to check, we can do 2(300)+6(200) which gives us our origional value of 2,400.

Hope this helps, please rate 5 stars and give brainlest!

I am thinking of a number, I multiply it by 12 and subtract 194, I get the same answer if I multiply by 5 and subtract 12

Answers

The answer is 26
26 x 12 - 194 =118
26 x 5 - 12 = 118

how do u find the constant RATIO of the exponential curve

Answers

Answer:

We call base 2 the constant ratio. In fact, for any exponential function with the form f(x)=abx f ( x ) = a b x , b is the constant ratio of the function. This means that as the input increases by 1, the output value will be the product of the base and the previous output, regardless of the value of a.

Step-by-step explanation:

Notice from the table that:

the output values are positive for all values of x

as x increases, the output values increase without bound

as x decreases, the output values grow smaller, approaching zero

The graph below shows the exponential growth function

f(x)=2x

Asap! I’ll mark you brainlest
What does How much did each candy bar cost?





Add
Subtract
Divide
Multiply

Answers

Answer:

One candy bar cost $4.02

Step-by-step explanation:

14.19 - 5.79 = 8.4 (total candy bar cost)

8.4 / 2 = 4.2 cost of one candy bar

Answer:

4.2

Step-by-step explanation:

14.18-5.79 = 8.4

8.4/2 = 4.2

find the value of x plz plz plz

Answers

Answer:

X=28

Step-by-step explanation:

Answer:

28

Step-by-step explanation:

A triangle always has 180° so that means 40° (2x+9)° and another angle add up to 180°.

We can find out two angles in order to find out the third, one of them is 40°  the other is 180°-105° because there are 180° on a line.

you get 75.

75°+40°=115°

180°-115°=65°

2x+9=65°

Make x the subject of the formula:

2x=56

(take away 9)

x=28

(divide both sides by 2)

Classify: d + 53

a. variable expression
b. numerical expression

Answers

Answer:

a variable expression

Step-by-step explanation:

because it consists unknown variable d

Haley’s work evaluating (Negative 2) Superscript 8 is shown below.

(Negative 2) Superscript 8 = (negative 2) (negative 2) (negative 2) (negative 2) (negative 2) (negative 2) (negative 2) (negative 2) = negative 256

Which statement best describe Haley’s first error?

Haley’s work evaluating (Negative 2) Superscript 8 is shown below.

(Negative 2) Superscript 8 = (negative 2) (negative 2) (negative 2) (negative 2) (negative 2) (negative 2) (negative 2) (negative 2) = negative 256

Which statement best describe Haley’s first error?

Answers

Answer:

256

Step-by-step explanation:

You multiply -2 an even amount of time which gives you a positive answer, if you were to multiply them an odd amount of times then it would be a negative number.

Answer:

The other guy is correct it is d Haley misinterpreted and got the wrong sign

Step-by-step explanation:

Which statement best describes a graph of paired points that form a proportional relationship? A straight line can be drawn through all of the the points but the line does not pass through the origin. A straight line can be drawn through all the points and the lines passes through the point where x = 0 and y = 0. A straight line can be drawn through all the points and the line passes through the point (3, 0). A straight line cannot be drawn through all the points and the line passes through the origin.

Answers

Answer:

a straight line can be drawn through all the points and the lines passes through the point where x = 0 and y = 0 (the origin).

Step-by-step explanation:

in a proportional relationship, one variable is always a constant value times the other. That constant "a" is know as the "constant of proportionality".

y = ax

and as you can easily see, that implies if x = 0, then y = 0.

therefore, the given answer is correct.

Find the equation of the hyperbola if y=2x−5 and y=−2x+3 are the asymptotes, and it is known that one of the vertices is on the y-axis.

Answers

Answer:

(x-2)^2/4 - (y+1)^2/16 = 1

Step-by-step explanation:

The first thing you want to do is find the center of the hyperbola. Since you have the two equations of the asymptotes, their intersection must be what you want. setting 2x - 5 equal to -2x + 3, you get that x = 2, meaning that 2 is the x-coord of your center. Plugging this value of x into the equations, you get that y = -1. Now that you have your center, you have the information that one of the vertices is on the y-axis. Since the distance from the center to the vertice must be a straight line, you know for sure that this hyperbola is a horizontal one (a vertical one would not have a vertice on the y-axis given this center). Knowing this, you have the equation form (x-2)^2/a^2 - (y+1)^2/b^2 = 1. I got a little confused here, but remember that you now know the center and the equations of the asymptotes. y = 2x - 5 is equal to 2(x - 2) - 1. The form of the asymptotes of a horizontal hyperbola is b/a(x-h) + k, which means that b/a must be equal to 2. This also means that 2a = b, and 4a^2 = b^2. Now you can substitute b^2 for 4a^2, leaving you with the equation (x-2)^2/a^2 - (y+1)^2/ 4a^2 = 1. Remember that vertice on the y-axis? Since it must be at the same y-coordinate (since you know that it must be a horizontal line from the center to the vertice), you know the vertice has to be (0, -1). You can plug these values into the previous equation, which gives you (0 - 2)^2 / a^2 - 0 = 1. This leaves you with 4/a^2 = 1, which means that a must be 2. Since you already know that b is 2a, b must be equal to 4. Plugging those values into the equation, you get your final answer, (x-2)^2/4 - (y+1)^2/16 = 1.

Least common denonminator of 9 over 10 and 4 over 5

Answers

Answer:10!

Step-by-step explanation: Rewriting input as fractions if necessary: 9/10, 4/5 For the denominators (10, 5) the least common multiple (LCM) is  10. LCM (10, 5)Therefore, the least common denominator (LCD) is 10. Calculations to rewrite the original inputs as equivalent fractions with the LCD: 9/10=9/10×1/1=9/104/5=4/5×2/2=8

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