HELP ME ASAP! i need help rn

Answer: letra “q” no es un número

Step-by-step explanation:

When calculating simple interest, if we want to invest for months or weeks instead of years we must convert the interest rate units into years.

Option D is the correct answer

It is the interest calculated on the principal at a given rate for a time period.

We have,

The formula for simple interest.

SI = PRT/100

P = principa

R = rate

T = time

Now,

Time is in years when we are calculating the simple interest.

Example:

If time is in months.

T = 4 months

T = 4/12 = 1/3 years.

Thus,

We must convert the units into years.

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The property of an isosceles trapezoid is that the diagonals are congruent. That is option C.

An isosceles trapezoid is defined as the type of quadrilateral whereby line of symmetry bisects one pair of opposite sides.

The unique characteristics of an isosceles trapezoid include the following:

Therefore, the property of an isosceles trapezoid that is listed above is that Diagonals are congruent which means that they are equal.

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The properties of isosceles trapezoid are

Two pairs of parallel sides

Two pairs of parallel sides

An isosceles trapezoid has left and right sides that are equal in length or identical in length, therefore the base angles are also equal.

The diagonals are identical because the lengths of the left and right sides are equal and the base angles are equal.

Additional varieties of trapezoids include

Generally, all trapezoids have two parallel sides.

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62.8363 cm is the total circumference of the given circle.

An element of a whole is a fraction. The number is represented mathematically as a quotient, where the numerator and denominator are split. Both are integers in a simple fraction. A fraction appears in the numerator or denominator of a complex fraction. The numerator of a correct fraction is smaller than the denominator.

Given a circle that has an arc of 165 degrees and also given that arc has a circumference of 28.8cm

Circumference of 165 Degrees arc = 28.8cm

Circumference of 1 Degree arc = 28.8/165

Circumference of 1 Degree arc =0.17454

Since the total angle in a circle is 360 degrees

Thus from the fraction,

Circumference of 360 Degrees arc = 0.17454*360

Circumference of 365 Degrees arc = 62.8363 cm

Therefore, the total circumference of the given circle is 62.8363 cm.

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The missing numbers are -80 and -20.

A number line is a straight line drawn horizontally where the numbers are placed at an equal intervals.

There is a number line in the question.

In a number line, numbers are arranged in equal intervals.

The constant interval here = -40 - -60 = 20

x - -100 = 20

x + 100 = 20

x = 20 - 100

x = -80

First missing number is -80.

y - -40 = 20

y + 40 = 20

y = 20 - 40

y = -20

Hence the numbers missing are -80 and -20.

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The margin of error at a 90% confidence level for this sample is approximately 0.086.

What is meant by margin of error?

The standard error of the sample proportion is calculated using the following formula:

Standard error = √((sample proportion * (1 - sample proportion)) / sample size)

Plugging in the values for the sample proportion (62/75) and sample size (75), you get a standard error of approximately 0.072.

Multiplying the standard error by the critical value gives the margin of error:

The margin of error = critical value * standard error

= 1.645 * 0.072

= 0.086

Hence, the margin of error at a 90% confidence level for this sample is approximately 0.086.

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According to the given information in the question the inverse of y=2x²+3x+5 is x = (y - 5 - 3x)/2.

Inverse operations, such as subtraction and addition multiplication and division, are pairs of mathematical operations where one operation reverses the effect of the other. The opposite of a number, or "inverse," is what is meant by the phrase. i.e., x - 1 = 1 / x.

Negative correlation and inverse relationships are interchangeable terms. Any two or more variables that consistently move in the opposing directions can be described by both. The outcome of measuring an inverse association will result in a negative sign.

To find the inverse of a function, you first need to switch the x and y variables, and then solve for y.

So, the inverse of y=2x²+3x+5 is x = (y - 5 - 3x)/2

Note that the inverse of a function is only possible if the function is a one-to-one function.

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Using the subtraction operation, the number of flowers with 10 petals that Mrs. Moth picked was 6.

A subtraction operation is one of the four basic mathematical operations, including addition, division, and multiplication.

The subtraction operation involves the minuend, the subtrahend, and the difference.

The minuend is the number or value being subtracted from by the subtrahend.  The result of a subtraction operation is known as the difference.

The total number of picked flowers = 24

The number of flowers with 9 petals = 6

The number of flowers with 8 petals = 7

The number of flowers with 3 petals = 5

The total number of flowers identified = 18 (6 + 7 + 5)

The number of flowers with 10 petals = x

x = 24 - 18

= 6

Thus, 6 flowers had 10 petals out of the 24 Mrs. Moth picked.

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The single payment that is required to settle both debts is given as follows:

$3,897.9.

The balance of an account after t years, using simple interest, that is, a single compounding per year, is given by the equation presented as follows:

A(t) = P(1 + rt).

In which:

For the $2,100 payment in 6 months = 0.5 years, the principal is obtained as follows:

(1 + 0.5 x 0.063) P = 2100

P = 2100/(1 + 0.5 x 0.063)

P = $2,035.88.

For the $1,950 payment in 9 months = 0.75 years, the principal is obtained as follows:

(1 + 0.75 x 0.063) P = 1950

P = 1950/(1 + 0.75 x 0.063)

P = $1,862.02.

Hence the single payment is obtained as follows:

2035.88 + 1862.02 = $3,897.9.

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Answer:

14

Step-by-step explanation:

When solving something like this use Pemdas

hope this help in some way

The number of ways to choose 6 letters from a set of 13 is given as follows:

a) Order does not matter: 1716.

b) Order matters: 1,235,520.

A combination is used when the order does not matter, hence, for item a, the number of ways is obtained as follows:

C(13,6) = 13!/(6!7!) = 1716.

A permutation is used when the order matters, hence, for item b, the number of ways is obtained as follows:

P(13,6) = 13!/7! = 1,235,520.

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Variable x and y for the rectangle is given by

x = (3x + 3)/6 + 1

y = (3x + 3)/6

Yes that's right. You have to equate the expressions for widths and for the lengths, since left and right widths (and lengths) have the same dimensions.

You may rewrite the equation for y=3x+3÷6 as

y = (3x + 3)/6

And now you have an expression for y, we can substitute it to the other equation you got:

x = y + 1

x = (3x + 3)/6 + 1

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Answer:

n = 4

Step-by-step explanation:

Let's put all of our variables on one side, and all of our non-variable numbers on the other. (I like to do this so that the variable isn't negative. You'll still get the same answer.)

So we can minus 2n on both sides, giving us 7 = n + 3.

Then, let's do our non-variables and subtract 3 from each side. This gives us 4 = n or n = 4.

Therefore, n = 4.

Using complementary angles, the value of x = 10.3

Complementary angles are angles in which the sum add up to 90°.

Since in a right triangle, sin(8x - 9) = cos(x + 6). To solve the problem, we proceed as follows.

sin(8x - 9) = cos(x + 6).

Given that cosФ = sin(90 - Ф), we have that

cos(x + 6) = sin[90 - (x + 6)]

So, susbstituting this into the equation, we have that

sin(8x - 9) = cos(x + 6)

sin(8x - 9) = sin[90 - (x + 6)]

This implies that

8x - 9 = 90 - (x + 6)

8x - 9 = 90 - x - 6

8x - 9 = 84 - x

Adding x to both  sides of the equation, we have

8x + x - 9 = 84 - x + x

9x - 9 = 84 + 0

9x - 9 = 84

Adding 9 to both sides of the equation, we have that

9x - 9 + 9 = 84 + 9

9x + 0 = 93

9x = 93

x = 93/9

x = 10.33

x ≅ 10.3

So, the value of x = 10.3

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The value of the integral is given as follows:

C. -7π/2.

The result of the integral is given by the total area of the figure.

From x = -7 to x = -1, the figure is a semi-circle of radius 3, below the y-axis, hence it's area is given as follows:

A1 = -0.5π x 3²

A1 = -4.5π.

From x = -1 to x = 1, with the line, the figure is a right triangle with sides 2 and 2, hence the area is given as follows:

A2 = 0.5 x 2 x 2

A2 = 2.

From x = 1 to x = 3, the figure is quarter circle with radius 2, hence the area is given as follows:

A3 = 0.25π x 2²

A3 = π.

From x = 3 to x = 4, the figure is a right triangle with sides 1 and 4, below the y-axis, hence the area is given as follows:

A4 = 0.5 x 1 x 4

A4 = -2.

Hence the total area, representing the integral, is given as follows:

A = A1 + A2 + A3 + A4

A = -4.5π + 2 + π - 2

A = -3.5π

A = -7π/2.

(the result of the integral is negative but the area is positive).

Meaning that the correct option is given by option C.

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The least positive integer is m=132.

m(m−1)+11=N

It is clear that N must be odd and that can be divisible by the prime 11.

However, the following congruences have no solution as it is easy to prove directly by checking the few possibilities with m(m−1) not divisible by 3,5 and 7 respectively

{m(m-1)+2=0(mod 3)

{m(m-1)+1=0(mod 5)

{m(m-1)+4=0(mod 7)

Thus N=∏ with pi≥11

A necessary condition is that (solving the quadratic in m)

√4N-43=x² and from this, we need that

N≡1,3,7(mod10)

By chance, we find the minimum N=113⋅13 which corresponds to m=132

and that could have been calculated by direct trials but the next solution seems to be far from 132.

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Lines AB, BC, and AC have an equal slope, with a slope value of 2/3.

A linear equation is an algebraic equation of the form y=mx+b, where m is the slope and b is the y-intercept, and only a constant and a first-order (linear) term are included. Sometimes, the aforementioned is referred to as a "linear equation of two variables," with y and x serving as the variables.

Given a line AC that has an x-intercept of "2"

Since,

AB is part of line AC thus the slope of AB will be the same as the slope of line AC and the Slope of line BC.

For the slope of line AB:

Since there is no Additional data given on the problem we will assume that every square is a unit square in the graph

Thus, Coordinates of A = (-5, -2)

Since Point B is the x-intercept of line AB thus its coordinates = (-2, 0)

from the formula of the slope of a line:

m = (y₂ -y₁)/(x₂ - x₁)

Thus, the slope of line AB:

m = (0+2)/-2 +5)

m = 2/3

therefore, the slope of the line AB, BC, and AC are equal and the value of the slope is 2/3.

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Answer:

x = 25

Step-by-step explanation:

Since the given triangle is a right triangle and we are also given two sides which are opposite (height) = 24 units and adjacent (base ) = 7 units. We can apply the Pythagoras Theorem where:

[tex]\displaystyle{\text{opposite}^2 + \text{adjacent}^2 = \text{hypotenuse}^2}[/tex]

In simpler words, it is:

[tex]\displaystyle{\text{height}^2 + \text{base}^2 = \text{slope}^2}[/tex]

Substitute in given values:

[tex]\displaystyle{24^2+7^2=x^2}[/tex]

Evaluate and solve for x:

[tex]\displaystyle{576+49=x^2}\\\\\displaystyle{625=x^2}\\\\\displaystyle{\sqrt{625}=\sqrt{x^2}}\\\\\displaystyle{\pm \sqrt{625}=x}\\\\\displaystyle{\pm 25=x}[/tex]

However, x is a length value and length's value cannot be negative so x can only be 25.

Hence, x = 25 units

Step-by-step explanation:

y÷15 or y/15 = 6

let's ignore the remainder for a moment.

y/15 = 6

y = 6×15 = 90

now, what does "remainder" mean ?

it means after a clean division there is a result, and there is still this additional remainder left.

the actual result of

a/b is

a/b = c + remainder/b

where c is an integer, and remainder is also an integer.

so, a = b×c + b×remainder/b = b×c + remainder

therefore,

y = 6×15 + 8 = 98

to check

98/15 = 6 remainder 8

so, it is correct

314÷y = 18 remainder 8

314 = 18y + 8

306 = 18y

y = 306/18 = 17

check

314 / 17 = 18 remainder 8

so, it is correct.

Following are the answers to all the asked questions for classifying types of cost.

a. Electricity costs of $0.025 per kilowatt-hour - variable cost

b. Warehouse rent of $6,000 per month plus $0.50 per square foot of storage used - mixed cost

c. Thread - variable cost

d. Lubricants used to oil machinery - variable cost

e. Janitorial costs of $2,000 per month - fixed cost

f. Advertising costs of $10,000 per month - fixed cost

g. Sales salaries - fixed cost

h. Color dyes for producing different colors of sweatshirts - variable cost

i. Salary of the production supervisor - fixed cost

j. Patterns for different designs. Patterns typically last many years before being replaced - fixed cost

k. Maintenance cost with sewing machine company. The cost is $2,000 per year plus $0.001 for each machine hour of use - mixed cost

l. Property taxes on factory, building, and equipment - fixed cost

m. Cotton and polyester cloth - variable cost

n. Hourly wages of sewing machine operators - variable cost

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The dimensions of the poster are given as (x^2 - 6) inches by (x^2 + 12) inches.

The area of the poster is given by the product of these two dimensions:

Area = (x^2 - 6) inches * (x^2 + 12) inches

Area = x^4 - 6x^2 + 12x^2 - 72

Area = x^4 + 6x^2 - 72 inches^2

So, the area of the poster is x^4 + 6x^2 - 72 inches^2.

The size of the bands that would result from cutting the plasmid with Hind III, Eco RI and Sma I would be 5530

The size of bands resulting from cutting a plasmid with Hind III, EagI and SmaI can be determined using the following formula:

Size of Band = Plasmid Size - (Hind III + EagI + SmaI)

The size of the bands that would result from cutting the plasmid with Hind III, Eco RI and Sma I can be calculated using the following formula:

For this example, the plasmid has a size of 5541 base pairs. After cutting with Hind III, EagI and SmaI, the size of the bands will be:

Size of Band = 5541 - (6 + 4 + 4)

Size of Band = 5527 base pairs

Band size = Total base pairs - [size of sites (Hind III + Eco RI + Sma I)] + 1

In this case, the band size would be calculated as follows:

Band size = 5541 - (6 + 6 + 4) + 1

Band size = 5530 bp

Therefore, the size of the bands that would result from cutting the plasmid with Hind III, Eco RI and Sma I would be 5530

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Complete question:

What size bands would result from cutting the following plasmid using Hind III, EcoRI and SmaI? The plasmid has a total of 5541 base pairs.

The solution to the equation is i , -i , 4i , -4i

A quadratic equation is a second-order polynomial equation in a single variable x , ax² + bx + c=0. with a ≠ 0. Because it is a second-order polynomial equation, the fundamental theorem of algebra guarantees that it has at least one solution. The solution may be real or complex.

The roots of the quadratic equations are

x = [ -b ± √ ( b² - 4ac ) ] / ( 2a )

where ( b² - 4ac ) is the discriminant

when ( b² - 4ac ) is positive, we get two real solutions

when discriminant is zero we get just one real solution (both answers are the same)

when discriminant is negative we get a pair of complex solutions

Given data ,

Let the equation be represented as A

Now , the value of A is

x⁴ + 17x² + 16 = 0   be equation (1)

On simplifying the equation , we get

Substitute the value of x² = u

u² + 17u + 16 = 0

The roots of the quadratic equations are

u = [ -b ± √ ( b² - 4ac ) ] / ( 2a )

u = [ -17 ± √ ( 289 - 4 ( 1 ) ( 16 ) ) ] / 2

On further simplification , we get

u = [ -17 ± √ ( 289 - 64 ) ] / 2

u = ( -17 ± √ 225 ) / 2

u = ( -17 ± 15 ) / 2

The two values of u are

u = ( -17 - 15 ) / 2

u = -16

And , u = ( -17 + 15 ) / 2

u = -1

Substitute the value of x² = u , we get

x² = -16

Taking square roots on both sides of the equation , we get

x = ± √ ( -16 )

x = ± 4i

And ,

x² = -1

x = ± i

So , the values of x are i , -i , -4i and 4i

Hence , the equations are solved

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The sampling method used in this case is random sampling and the sample is representative.

A sample is a small proportion of individuals taken from the general population to be studied. For a sample to be representative it is expected that all the individuals represent the population, for example, if the population includes people of different ages the sample should include this too.

The random sample selected is representative because the seats of the students selected are distributed within the class rather than in only one row or line.

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After solving the given equation we know that students worked for 17 hours a week.

The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions.

For instance, the equation 3x + 5 = 14 consists of the two equations 3x + 5 and 14, which are separated by the 'equal' sign.

So, the given equation is:

g=−0.0007h+0.018h+3.02

Now, we know that g is 2.72, so we can calculate for h as follows:

2.72=−0.0007h+0.018h+3.02

2.72 = -0.0173h + 3.02

- 0.3 = -0.0173h

h = -0.3/-0.0173

h = 17.34

Rounding off: 17 hours

Therefore, after solving the given equation we know that students worked for 17 hours a week.

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Answer:

An agency that occurs when a principal and an agent categorically agree to enter into an agency agreement with each other is known as which of the following?

By calculating, The GCF of the given numbers 49 and 28 is 7.

What is Algebraic expression ?

An algebraic expression is an expression that consists of numbers, variables and operators such as addition, subtraction, multiplication and division. These expressions can be used to solve equations and other mathematical problems. Algebraic expressions can also be used to represent relationships between different variables. For example, the expression 4x + 2y can be used to represent the relationship between two variables, x and y.

So lets first find the prime factorization of 28

prime factorization of 28 = 2 × 2 × 7

So lets first find the prime factorization of 49

prime factorization of 49 = 7 × 7

To find the GCF, multiply all the prime factors common to both numbers:

Therefore, The GCF  of the  given numbers 49 and 28 is 7.

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Answer:

The length of the longer ladder is 36ft

Step-by-step explanation:

30ft/10ft = 3

12ft x 3 = 36ft

Another way to solve this is by cross multiplying

[tex]\frac{10}{12}[/tex] = [tex]\frac{30}{x}[/tex]

10x = 360

x = 36ft

The possible length of the third side of a triangle, say x, with the other two sides are 5 inches and 12 inches. is  

7 ≥ x ≥ 17

The length of the third side is within the range of

The sum of the two ides is the highest possible length of the third side

= 12 inches + 5 inches

= 17 inches

The difference of the two ides is the lowest possible length of the third side

= 12 inches - 5 inches

= 7 inches

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