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A sentence constructed up of variables, numbers, or both is known as an expression in mathematics.

A mathematical expression is a sentence with at least two numbers or variables, at least one mathematical operation, and at least single mathematical operation. Math allows for addition, subtraction, multiplication, and division.

Using variables, numbers, or both, a mathematical expression is a phrase. A symbol in an expression can never be equal. Examples include these expressions. Equations are mathematical statements that demonstrate the equality of two expressions.

Let the equation be 2x + 10

Where, x = 15

substitute the values in the above equation, we get

= 2(15) + 10

= 40

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Using the expression you found in part a, how many minutes will it take to make and pack an order for 15 parts? Show your work.

Given expression is:

2x + 10

There are 66 ways to choose two vehicles from the dealer's inventory.

A combination is a grouping of items from a larger set in which the order of the items is irrelevant. In other words, it is a method of selecting a subset of items from a larger set without regard for their order of selection.

The formula C(n, k) = n! / (k! (n - k)!) can be used to calculate the number of combinations.

where n represents the total number of items in the set and k represents the number of items in the combination.

The exclamation mark (!) represents the factorial function, which is the sum of all positive integers up to a certain number.

The number of ways to select two vehicles from 8 cars and 4 trucks is 8 + 4 = 12 vehicles.

To find the number of combinations, we use the formula for combinations, which is:

C(n, k) = n! / (k! (n - k)!)

where n is the total number of vehicles and k is the number of vehicles we want to choose.

So, for n = 12 and k = 2,

we have:

So, putting the value in above formula:

We will get it as:

C(12, 2) = 12! / (2! (12 - 2)!) = (12 * 11) / (2 * 1) = 66

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Suppose the prediction of an annual drop in magazine subscriptions of 8% is correct. In that case, the number of subscribers that a magazine with 85,630 subscribers will have in 8 years, using an exponential function, is 43,947.

The exponential function is an expression in the form of f(x) = bˣ, where the b constant is called the base and the x variable is called the exponent.

Exponential functions may describe exponential growth or exponential decay.

Exponential decay refers to a decrease or drop, where the decay rate is known.

The annual drop in magazine subscriptions = 8%

The number of current magazine subscribers = 85,630

The number of years for the prediction = 8 years

Decay factor = (1 - 8%) = 0.92

The number of magazine subscribers in 8 years = 85,630 x 0.92^8

= 85,630 x 0.5132189

= 43,947

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Answer:

x = 40 and y = 100

Step-by-step explanation:

random number 100

40% of 100 = 0.40 * 100 = 40

The inequality to represent the constraints will be:

x + y ≥ 325

x + 2y = 600

Inequalities are simply created through the connection of two expressions. In this case, it should be noted that the expressions in an inequality are not always equal. Inequalities implies that the expressions are not equal. Here, they are denoted by the symbols ≥ < > ≤.

Let x = number of vegetarian meals

Let y = number of meats.

The inequality to represent the constraints will be:

x + y ≥ 325

x + 2y = 600

In this case, the daily budget is 600.

Subtract the equations

y = 275

Number of meats = 275

Number of vegetarian meals = 325 - 275 = 50

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Answer:

I believe the answer is 273

Step-by-step explanation:

The unshaded part would be an area of 273 because the base is 26 and the height 21. You times that and divide it by 2.

Along with that times the whole rectangle (26 x 21 = 546)

Subtract 546 and 273 and get 273.

Answer: x = 33°

Step-by-step explanation: 2x° + 24°-24 = 90°-24 2x/2 = 66/2 x = 33°

Answer:

1480

Step-by-step explanation:

To the nearest 10, is the 10s place. 76 is closes to 80, so round 1476 to 1480. Hope this helps!

Answer:

ch.1 = 12x1.2=14.4

ch.2=10.5x1.2=12.6

ch.3=39.3x1.2=47.16

Step-by-step explanation:

You just have to multiply all the chapters by 1.2

i think if im wrong im sorry

Answer: 14.4, 12.6, 49.16

Step-by-step explanation:

Multiply each number by 1.2

12x1.2=14.4

10.5x1.2=12.6

39.3x1.2=49.16

chapter 1 : 14.4

chapter 2: 12.6

chapter 3: 49.16

The quotient is x³-3x²-3x+9 and the remainder is -33.

Synthetic division is a method used to perform the division operation on polynomials when the divisor is a linear factor.

When we divide a polynomial p(x) by a linear factor (x - a) (which is a polynomial of degree 1), Q(x) is the quotient polynomial and R is the remainder.

p(x)/q(x) = p(x)/(x- a) = Quotient + (Remainder/(x - a))

p(x)/(x - a) = Q(x) + (R/(x - a))

Given that, (x⁴-12x²-6)/(x+3)

Here, (x⁴+0x³-12x²+0x-6)/(x+3)

Now,

-3| 1   0   -12   0   -6|

  |     -3    9   9   -27|

________________

    1  -3   -3   9    |-33

So, remainder = -33 and quotient = x³-3x²-3x+9

Therefore, the quotient is x³-3x²-3x+9 and the remainder is -33.

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Solving exponential and logarithmic equations requires a strong understanding of the properties of exponents and logarithms, as well as the use of logarithmic identities and inverse operations. It is important to simplify expressions and isolate the variable using basic algebraic operations, logarithmic identities, and inverse functions.

When solving exponential or logarithmic equations, there are several important steps to consider:

Simplify the equation using basic algebraic operations, such as multiplication, division, addition, and subtraction.

Isolate the exponential or logarithmic expression on one side of the equation.

Use the properties of exponents or logarithms to simplify the expression, if possible.

Use logarithmic identities such as logarithmic rules and change-of-base formula to simplify the expression.

Solve for the variable by using inverse operations.

Check your answer by substituting it back into the original equation and verifying that both sides are equal.

Identities and logs can be helpful in solving exponential and logarithmic equations because they provide a set of rules that can be used to simplify expressions. For example, logarithmic identities such as log(a * b) = log(a) + log(b) and log(a/b) = log(a) - log(b) can be used to simplify expressions containing products and quotients.

However, identities and logarithms can also be confusing because they involve complex concepts and require a solid understanding of logarithmic properties. This can make solving exponential and logarithmic equations challenging for some students.

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Answer:

Yes. The two parallelograms are similar.

Step-by-step explanation:

Similarity:

     Two parallelograms are said to be similar when the corresponding sides are in the same ratio.

  [tex]\sf \dfrac{WX}{AB}= \dfrac{3}{2}\\\\\dfrac{XY}{BC}=\dfrac{9}{6} = \dfrac{9 \div 3}{6 \div 3}\\\\[/tex]

        [tex]\sf = \dfrac{3}{2}[/tex]

           [tex]\bf \dfrac{WX}{AB}=\dfrac{XY}{BC}=\dfrac{3}{2}[/tex]

Therefore, two parallelograms are similar.

(A) The British literature class is most likely larger, because the standard deviation is lower.

A high standard deviation suggests that the observed data is very variable around the mean. This suggests that the observed data is widely dispersed. Instead, a modest or low standard deviation would suggest that the majority of the observed data is closely packed around the mean.

The standard deviation measures the degree of dispersion of a set of data. Each data point is compared to the average of all the data points, and standard deviation gives a determined value that indicates whether the data points are clustered together or dispersed.

Hence, when standard deviation is lower the class is most likely to be larger in number.

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Constants are fixed values that never change, whereas variables are values that can change but are often initialized to “0” or another default value because the program's user will supply the actual values.

In programming, a variable is a value that may vary depending on outside variables or data that has been provided to the program. A program normally consists of instructions that tell the computer what to do and data that it utilizes while running.

The correct values for the variables x and y are 8 and 5, respectively.

[tex]3 \times 8 + 2 \times 5=34[/tex]

[tex]24 + 10 =34[/tex]

[tex]\frac{1}{2}\times 8+2 \times 5=14[/tex]

[tex]4 + 10 =14[/tex]

Constants and variables are typically categorized as certain data kinds. Each data type specifies and restricts the data's shape.

An integer expressed as a decimal number or a string of text characters with a set maximum length are examples of data types. Each object in object-oriented programming includes the data variables of the class of which it is an instance.

Therefore, The methods of the object are made to deal with the actual values that are presented to it when it is utilized.

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The temperature at 6 PM at greater than morning temperature at 6 AM by 1.3° C.

We know initially the temperature is 19.4° C.

The new temperature at noon will be = Temperature at 6 AM + temperature after noon

Keep the values

The new temperature at noon will be = 19.4 + 3.8

Performing addition

The new temperature at noon will be = 23.2° C

Temperature at 6 PM = Temperature at noon - temperature fall between noon and 6 PM

Keep the values

Temperature at 6 PM = 23.2 - 2.5

Performing subtraction

Temperate at 6 PM = 20.7° C

The difference between the temperature = 20.7 - 19.4

Performing subtraction

The difference between the temperature is 1.3° C.

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The perimeter of the rectangle  = (6 x + 8) meters. and the Area is  

2x² +10x.

step 1: The first side's length is (x+ 5) metres, while the second side's breadth is (2x+ 1) metres.

Now, the RECTANGLE'S PERIMETER = 2 (LENGTH + WIDTH).

Here, perimeter is equal to 2 ((x+ 5) m + (2x + 1) m) or 2 (x + 5 + 2x +1) = 2(3x + 4) = 6x + 8

Therefore, the rectangle's perimeter is equal to (6 x + 8) metres.

step 2:

Area of a rectangle equals length times breadth

Given:

Size = x+5

Thickness = 2x+1

Area of rectangle = length breadth = (x+5) (2x+1) = 2x (x+5) (2x+1) =2x2+5+4x+1 =2x2+10x, according to the query.

The area is therefore 2x2 + 10x.

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The equation that can be used to determine the price of the dress

is x + 0.06x + 35 = 126.16.

A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.

Assuming the cost of the dress Francesca bought to be 'x'.

We know, 6% = 0.06 in decimal and  She also paid $35 which was not taxed to have the dress altered.

Therefore, The equation to determine the cost of the dress would be,

x + 0.06x + 35 = 126.16.

1.06x = 126.16 - 35.

1.06x = 91.16.

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Answer:

-72

Step-by-step explanation:

Assuming it is -x^2 - x and not (-x)^2, then you simply plus in -9 for x:

-(-9)^2-(-9) = -72

The piece of pasta he started with was 34 inches long.

Defining a problem, identifying its underlying cause, locating, ranking, and selecting potential solutions, as well as putting those ideas into practice, are all steps in the issue-solving process. Diagnose the circumstance to keep your attention on the issue and not merely its symptoms.

Let x be the length of the original piece of pasta.

After taking bites, he has (x - 3) pieces of pasta, each 17/10 inches long.

So, the total length of all pieces of pasta is (x - 3) * 17/10 = 17 inches.

Therefore, x = 10 * 17/7 + 3 = 34 inches.

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Nasim have to pay for 3 pounds of coffee is  $10.75.

The  expression for p pounds of coffee is 4.75p - 3.5.

A mathematical operation such as subtraction, addition, multiplication, or division is used to combine terms into an expression. In a mathematical expression, the following terms are used:

Given:

The price per pound of the coffee is $4.75 per pound and he has a coupon for $3.50 off the final amount.

and, Nasim have to pay to buy 3 pounds of coffee.

So, Nasim have to pay for 3 pounds of coffee.

= 3 x 4.75 - 3.50

= 14.25 - 3.5

= $10.75

and, the expression for p pounds of coffee is

= 4.75p - 3.5

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Answer: The answer would be

Step-by-step explanation:

28/3

in decimal form- 9.3 (3 keeps going)

Mixed Number- 9 1/3

Answer:

1,500

Step-by-step explanation:

It's preetty fast but it cannot be the record holder of " Lockheed SR-71 Blackbird " Which it's top speed i 2,100 miles per hour !!

The surface area of the shape, can be found to be

This is a composite shape which means you need to find the surface areas of the different shapes and then sum them up.

Area of triangle :

= 1 / 2 x base x height

= 1 / 2 x 20 x 25

= 250 cm ²

Area of rectangles :

= ∑ ( Length x Width )

= ( 20 x 15 ) + ( 25 x 15 ) + ( 15 x 30 )

= 1, 125 cm ²

The surface area is:

= 1, 125 + 250

= 1, 375 cm ²

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According to the concept of average it will take 3 days in order to get a "no homework" day.

The term called average in math is defined as the number you get when you add two or more figures together and then divide the total by the number of figures you added.

Here we know that Mrs. Bready has a large bag filled with red and green cards. She tells the class that 15% of the cards are red and 85% are green.

And here we need to determine the average number of days that it will take in order to get a "no homework" day based on these 5 trials,

Then the following calculation must be performed as,

=> 0.85 x 0.85 x 0.85 x 0.85 x 0.85 = X

=>  x = 0.4437

Hence it will take 4.2 days in order to get a "no homework" day.

Here we have already know that the first trial is carried out then we have to subtract it from the total number then we get,

=> 4.2 - 1 = 3.2

When we round off the value then we get 3.

Therefore, option (b) is correct.

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The correct answer is that all the options are correct. Therefore option E is the correct option which states that all these answers are correct.

During the 1950s in the United States, married women who worked outside the home faced social pressures to stay at home with their children, but despite these pressures, the number of married women working outside the home increased throughout the decade. By the end of the 1950s, married women who worked outside the home accounted for nearly one-third of all married women.

It is worth mentioning that during that time, there were many societal expectations that women should be homemakers, and it was not as common for married women to work outside the home as it is today. Additionally, discrimination, lack of opportunities and lower wages for women further decreased the number of working women. However, during the 50s women started to participate more in the workforce, and that trend continued to increase in the following decades.

Therefore, The correct answer is that all the options are correct. Therefore option E is the correct option which states that all these answers are correct.

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Answer: $115

Step-by-step explanation:  

92 is the price after a 20% discount, so it is 80% of the original value.

So, solve, 92÷0.80=115

So the original price was $115

If the equation to model his altitude(y) in feet, in terms of the number of feet he bicycled(x) is y = 1/20x + 5000 , then the rate of change in altitude as he traveled is described by the fraction "1/20" .

The rate of change in altitude(y) as Zach traveled can be described as the slope of the line represented by the equation y = 1/20x + 5000. In this equation, the slope is 1/20.

The slope of a line is also called as the "rise over run", represents the change in y (altitude) per change in x (distance traveled). So in this case, the slope of 1/20 means that for every 20 feet Zach travels, his altitude changes by 1 foot.

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Answer:

see graph attached

Step-by-step explanation: