Question 12 of 20
Subtract.
(2x²+5)-(4x-3)
OA. 2x²-4x+2
OB. -2x² +8
OC. 2x2²-4x+8
OD. -2x²+2

Answer:

[tex]\huge\boxed{\sf \$ 2.2}[/tex]

Step-by-step explanation:

5 pounds of flour = $11

5/5 pound of flour = $11 / 5

[tex]\rule[225]{225}{2}[/tex]

Therefore ,the linear function that best describes the scatterplot relating the number of books in the library is y = 10 + 8x

Two separate but related concepts are referred to as linear functions in mathematics: A polynomial function of degree 0 or 1 is referred to as a linear function in calculus and related fields if its graph is a straight line.

Here,

The points given on the scatterplot are (0,10),(4,42),(8,74) & (12,106)

By putting in the points in the given linear functions

y = 8 − 10x

y = 8 + 10x

In mathematics, the term "linear function" refers to two distinct but related ideas: In calculus and related subjects, a polynomial function of degree 0 or 1 is referred to as a linear function if its graph is a straight line.

y = 10 − 8x

y = 10 + 8x

Thus ,the  linear function which best satisfy the points given on the scatterplot is  y = 10 + 8x

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Answer:

-2

Step-by-step explanation:

Let's call the unknown number x.

We are given that:

1/x + 15 = 13

To find the value of x, we need to isolate x on one side of the equation.

To do this, we can subtract 15 from both sides:

1/x + 15 - 15 = 13 - 15

This gives us:

1/x = -2

To find x, we can multiply both sides by x:

x * (1/x) = x * (-2)

This gives us:

x = -2x

Therefore the number is -2

Answer:

$1.48

Step-by-step explanation:

Meal cost: $7.24

Coffee cost: $2.65

Total cost: $9.89

Now we need to find 15% of 9.89.

This is a percentage question, we need to first multiply 9.89 with 15% then divide it by 100%:

9.89 × 15 ÷ 100 = 1.48 approximately.

The length of the hypotenuse of a 45 45 90 triangle with one side of length 8 is 8√2.

The length of the hypotenuse of a 45 45 90 triangle can be calculated using the Pythagorean Theorem. The Pythagorean Theorem states that the sum of the squares of the two sides of a right triangle is equal to the square of the hypotenuse. This can be expressed mathematically as a2 + b2 = c2, where a and b represent the lengths of the two sides and c represents the length of the hypotenuse.

In a 45 45 90 triangle, both sides are equal in length. This means that the mathematical equation simplifies to a2 + a2 = c2 or 2a2 = c2. To calculate the length of the hypotenuse, we can solve for c by taking the  square root of both sides, resulting in c = √2a.

In this particular example, if the length of one of the sides is 8, then the length of the hypotenuse can be calculated as c = √2(8) = 8√2. Therefore, the length of the hypotenuse of a 45 45 90 triangle with one side of length 8 is 8√2.

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Answer:

the answer is y = -4x + 5

Step-by-step explanation:

Im dum i cant explain it  :D

The equation of variation is xy = k.

The required values are given below.

A proportional relationship is a relationship between two expressions and where changes in one expression means some constant change in the other expression as well. Generally, it is represented as x/y = k, where x and y are two expressions and k is constant.

Given:

y inversely varies as x.

That means, y ∝ 1/x.

So, y = kx, where k constant of variation.

Then, x × y = k

When y = 8, x = 3.

k = 3 × 8 = 24

So, the equation of variation is xy = 24.

When x = 6,

6y = 24

⇒ y = 4

When y = 9, x = 6.

k = 6 × 9 = 54

So, the equation of variation is xy = 54.

When y = 4,

4x = 54

⇒ x = 27/2

When y = 1.5, x = 14.

k = 1.5 × 14 = 21

So, the equation of variation is xy = 21.

When x = 9,

9y = 21

⇒ y = 7/3

When y = 20, x = 10.

k = 20 × 10 = 200

So, the equation of variation is xy = 200.

When y = 25,

25x = 200

⇒ x = 8

Therefore, the values are given above.

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F1 and F2 refer to the two principal focal lengths of a lens.

The two main focal lengths of a lens are referred to as f1 and f2 in the field of optics. The first principal focal length, or f1, is the distance from the lens to the point where parallel light rays, which have already passed through the lens, condense into a single point known as the focal point.

The second principal focal length, or f2, is the distance from the lens to the point where light rays diverging from a single point will appear to converge after passing through the lens. The distance from the lens to the point at which the light rays converge or diverge is known as the focal length. The values of f1 and f2, respectively, depend on the shape and type of the lens.

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The length of this hammer is going to be 38cm

Length has the dimension of distance in the International System of Quantities. The majority of measuring systems choose a base unit for length from which all other units are derived.

The formula that we would use to get the length is

r₁ + r₂ = L

Where r₁  is the lenght 9 cm from the head

29 cm is the length from the bottom

When we add these two, we would have the length of the hammer

29 + 9 = 38cm'

Hence the length of the hammer is 38 cm

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Since 8 is at the bottom where 8 equally sized squares of paper have been stacked on top of one another, the sequence is 82543671, therefore 8.

A sequence is an enumerated group of items in mathematics where repetitions are permitted and order is important.

Similar to a set, it has members (also called elements, or terms).

The length of the series is the number of elements (potentially infinite). In contrast to a set, the same items might appear more than once in a sequence at various points, and unlike a set, the order is important.

A sequence can be described formally as a function from natural numbers (the positions of the sequence's elements) to the items at each of those positions.

An indexed family, which is a function from any index set, can be thought of as a generalization of the idea of a sequence.

For instance, the letter combinations (M, A, R, and Y) have the.

According to our question-

It is evident from the figure that 1 is a top.

I must locate Bottom 1.

6 is less than 7

If 3 weren't below 6, then 6 wouldn't be visible.

In the absence of 4, half of 3 would have been covered.

Unless 5 is below 4, 4 would have been covered.

Unless 2 is less than 5, half of 5 would have been covered.

If 8 were above 2, 2 would have been covered.

The sequence is 82543671.

therefore 8 is at the bottom.

Hence, Since 8 is at the bottom where 8 equally sized squares of paper have been stacked on top of one another, the sequence is 82543671, therefore 8.

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None of the above. The answer is 10! (10 factorial) which number is 3,628,800.

The number of ways to arrange 10 people in a line is 10! (10 factorial). This is equal to 10 x 9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1 which is 3,628,800.

The answer to the question is 10! (10 factorial). This is because in order to determine the number of ways to arrange 10 people in a line, you must multiply the number of people by every number between that number and 1. In this case, it would be 10 x 9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1 which is 3,628,800.

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The shaded region composed of triangle and square has an area of 28 in²

An equation is an expression relating two or more numbers and variables.

The area of a rectangle is the amount of space occupied by the rectangle. It is given by:

Area = length * width

From the diagram:

Area of rectangle = length * width = 8 in * 5 in = 40 in²

Area of triangle = (1/2) * base * height = (1/2) * 8 in * 3 in = 12 in²

Area of shaded region = Area of rectangle - Area of triangle = 40 in² - 12 in² = 28 in²

The shaded region area is 28 in²

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Answer :

From linear equation of a line,

y=mx+c or y=mx+b

Slope of a line is m and y-intercept is c (or b).

So first we have to make y the subject in

→8x+y=9

→y= - 8x+9

y = mx + c

Hence slope is (-8) and y-intercept is 9.

for x-intercept, put y=0 and we get

0 = -8x+9

x=-8/-9

x= 8/9

therefore x intercept is 8/9.

Answer:

-------------------------------

Opposite leg / hypotenuse is the ratio for sine:

Correct choice is A.

Opposite leg / adjacent leg is the ratio for tangent:

Correct choice is C.

Adjacent leg / hypotenuse is the ratio for cosine:

Correct choice is B.

The ratio for tangent is opposite leg/adjacent leg,tan 53° is x/12.

We'll use the term sine and the symbol sin to denote the ratio of a right triangle's opposing side to hypotenuse. The cosine, denoted by the symbol cos, is the ratio between the neighboring side and hypotenuse of a right triangle.

The cosine, denoted by the symbol cos, is the ratio between the neighboring side and hypotenuse of a right triangle.

Explanation:

The first question is:

Correct answer is A: sin 40° = x/20.

The ratio for tangent is opposite leg/adjacent leg:

tan 53° = x/12

C is the proper selection.

The cosine ratio is the adjacent leg to hypotenuse:

cos 51° = 10/x

B is the proper selection.

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The first term of the Geometric Sequence will be 9,312.

It is a sequence in which every term (except the first term, a) is multiplied by a constant number (common ratio, r) to get its next term. i.e., To get the next term in the sequence, we have to multiply with the common ratio, and to find the preceding term, we just have to divide the term by the same common ratio.

[tex]Sum = \frac{a(r^{n} - 1) }{r - 1}[/tex]

where;

Sn = 46560

r = 4

n = 4

[tex]46560 = \frac{a(4^{4} - 1) }{4 - 1}\\46560 = \frac{a(16 - 1) }{3}\\\\46560 = \frac{a(15\\) }{3}\\\\\\46560 = \frac{a(15\\) }{3}\\\\\\[/tex]

46560 = 5a

a = 9,312

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The average rate of change is 0.8

It is the average amount by which the function changed per unit throughout that time period. It is calculated using the slope of the line linking the interval's ends on the graph of the function.

Given:

x     f(x)

5       13

10      17

15      21

20     25

As, The rate of change of the function is its gradient or slope.

So, the formula for calculating the gradient of a function is expressed as:

m = [tex](y_2 - y_1)/ (x_2 - x_1)[/tex]

Using the coordinate points from the table (5, 13) and (10, 17)

Substitute the coordinate into the expression:

m = (17- 13)/ (10 - 5)

m = 4 /5

m = 0.8

Hence, the average rate of change is 0.8.

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Answer: It assigns a unique output to each input.

This statement is true of all functions, including the function f(x) = 3x - 12.

A function assigns a unique output to each input, meaning that for each value of x that is input into the function, there is a corresponding and unique value of y that is output. This is also called the vertical line test, if for any vertical line cuts the graph of a function at most one time, it is a function.

It does not matter whether it is linear or nonlinear or whether the correlation is positive or negative, the statement that It assigns a unique output to each input is true for all functions.

Step-by-step explanation:

The equations are recorded in slope intercept form as below

equation            slope intercept form

y + x = 3             y = -x + 3

2x + y = x + 4    y = -x + 4

x + y = -3           y = -x - 3

A linear function consists of functions where the variables has exponents of 1.

The graph of linear functions is a straight line graph and the relationship is expressed in the slope intercept form as shown below.

y = mx + b

definition of variable

y = output variable

m = slope

x = input variable

b = y intercept

The equation are written in the form y = mx + b as below

y + x = 3          

rearranging the equation

y = -x + 3

2x + y = x + 4

rearranging the equation

y = -2x + x + 4

y = -x + 4

\

x + y = -3

rearranging the equation

y = -x - 3

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Identify variables

T (time) seconds

Y amount of times per day

T * Y = amount of time you would spend carrying water in a day, 24 hrs

365 * t * y = 365 (amount of days per year, multiplied by the amount of time you carry water per day).

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Answer:

3/2m^5n

Step-by-step explanation:

9m^8n^5÷6m^3n^4

(9/6)(m^8/m^3)(n^5/n^4)

3/2m^5n

Answer: 15

Step-by-step explanation:

15 can't be divided by two and make a non-repeating decimal.

We must remember to multiply each integer by a power of 10 while subtracting numbers in scientific notation.

A value's accuracy is influenced by the number of significant digits in the value, which is frequently a measurement. Count the significant digits starting with the first non-zero digit. All zeros are permitted in the decimal places to the right of the last non-zero place. Consider the five significant digits in the number 0.0079800. Any zeros to the right of the last non-zero digit, when they come from the measurement, are significant. rounding an integer to 3 significant digits and 3 decimal places is identical. Go up to three and begin counting at the first digit that is not zero. Remove the last digit after that. The final two digits to the right of the decimal point should be increased by zeros.

To make it simple to subtract these integers, they must all be in the same power, as demonstrated in the example below.

5×10^2−3×10^2=

5(100)−3(100)^2×10^2=

(500−300)^2×10^2

=200

However, before continuing, we must restate the numbers in similar powers of ten if the powers of ten for the numbers to be subtracted are not the same.

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The length of YV is equivalent to 7.

Given is that UV = x + 6 and UY = x - 1. Also, WY intersects UV at Y.

We can write that -

UV = UY + YV

YV = UV - UY

YV = (x + 6) - (x - 1)

YV = x + 6 - x + 1

YV = 7

Therefore, the length of YV is equivalent to 7.

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So answer is true For deductive arguments, you answer true to the question “Do the premises provide enough logical support for the conclusion

A valid argument is a deductive argument that succeeds in providing decisive logical support.

A valid argument is thus a deductive argument an argument that attempts to establish conclusive support for its conclusion  that succeeds.

An invalid argument is a deductive argument that fails in providing conclusive support.

For deductive arguments, you answer “yes” to the question “Do the premises provide enough logical support for the conclusion?” if the argument is valid, and you answer “no” if otherwise.

So answer is true For deductive arguments, you answer true to the question “Do the premises provide enough logical support for the conclusion

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Answer:

A balanced chemical equation is defined as the equation in which total number of individual atoms on the reactant side is equal to the total number of individual atoms on the product side. These equations follow law of conservation of mass.

Each of the mortgage types should be matched with the correct description as follows:

Mortgage brokering can be defined as a strategic process which typically involves a mortgage broker acting as an intermediary between a financial institution such as a mortgage bank that is offering loans and an individual that seeks to collect (obtain) this loan.

Generally speaking, there are different types of mortgage and these include the following:

In conclusion, a government insured mortgage is a type of mortgage that requires a buyer making a 20% down payment.

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Complete Question:

Match the mortgage types with their descriptions. it requires the buyer to make a 20% down payment. a large portion of principal is paid in a single payment at the end of the loan. it has the same interest rate for the life span of the loan. it requires a lower down payment and allows buyers to have a lower credit score. it initially has a fixed rate for three to five years and then adjusts at a predetermined time. it starts with a low interest rate and then adjusts throughout the duration of the loan.

Answer:

[tex] \textcolor{green}{ \textbf{no}}[/tex]

[tex] x = \frac{1}{10} , y = \frac{83}{10} [/tex]

Step-by-step explanation:

y=53x+3

y=73x+1

Solve y = 53x + 3 for equ 2 | equ means equation

[tex] \sf \: 53x + 3 = 73x + 1[/tex]

Substract 73x from both sides

[tex] \sf \: 53x - 73x + 3 = 1[/tex]

Solve 53x - 73x

[tex] \sf - 20x + 3 = 1[/tex]

Substract 3 from both sides

[tex] \sf - 20x + 3 - 3 = 1 - 3[/tex]

Solve

[tex] \sf \: - 20x = - 2[/tex]

Divide both sides by -20

[tex] \sf \frac{- 20x}{ - 20}= \frac{ - 2}{ - 20} [/tex]

Solve

[tex] \sf x = \frac{1}{10} [/tex]

[tex] \sf ------------------------------------------------- [/tex]

Substitute x = 1/10 into equ 1

[tex] \sf y = 53x + 3[/tex]

Insert x = 1/10

[tex] \sf y = 53( \frac{1}{10} ) + 3[/tex]

multiply 54 by the numerator which is 1

[tex] \sf \: y = \frac{53}{10} + 3[/tex]

Turn 3 to 3/1

[tex] \sf \: y = \frac{53}{10} + \frac{3}{1} [/tex]

L.C.M = 10

[tex] \sf y = \frac{ \frac{53}{10} \times 10 \: + \: \frac{3}{1} \times 10 }{10} [/tex]

Simplify

[tex] \sf \: y = \frac{53 + 30}{10} [/tex]

Calculate 53+30

[tex] \sf \: y = \frac{83}{10} [/tex]

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What shapes are the circles on the volleyball score  A blanket, sheet, plastic sheet, or other similar item is used by each squad. Each team starts with one ball and tosses and catches the others' balls in the blanket.

Fouls. A foul is when a player engages in play that is not permitted by the rules. A double foul occurs when two opposing players violate the rules at the same moment. A double hit occurs when a player makes several, or multiple consecutive, unlawful contacts. If a player steps above the service counter or centerline, they have made a foot error. The play court, which is 18 metres long and 9 metres wide, is surrounded by a free space that is actually 3 metres wide. The area that is at least 7 metres above the playing field and designated as the free performance space.

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