4+3 × (2 − 1) + 8 + (9-7)​

Answer: 4 + (2*3)^2

Step-by-step explanation:

A proportion is an equation in which two ratios are set equal to each other and the large sample size required is [tex]0.75[/tex].

What is population proportion?

A fraction is represented in the form of [tex]\frac{a}{b}[/tex], a while ratio [tex]a:b[/tex], then a proportion states that two ratios are equal. Here, [tex]a[/tex] and [tex]b[/tex] are any two integers.

Here, we are determining the minimum sample size for the determination of the population proportion. So, the general formula is of the form is:-

[tex]n=(\frac{z_\frac{x}{2}.x}{E})^{2}[/tex]

Here given values are:-

σ[tex]=76[/tex], population standard deviation

[tex]1-x=0.95\\[/tex], Confidence level

[tex]E=4.5[/tex], Error

Determining the critical value, we get

[tex]z_\frac{x}{2}\\P(z\leq z_\frac{x}{2})=1-\frac{x}{2}\\1-x=0.95\\x=1-0.95\\x=0.05\\\frac{x}{2}=\frac{0.5}{2}\\\frac{x}{2}=0.25\\1-\frac{x}{2}=1-0.25\\\\=0.75[/tex]

Hence, a large sample size is required is [tex]0.75[/tex].

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The conversion of 19 pounds to grams is 8170.74 grams.

From the information illustrated, it should be noted that it was illustrated that 1 pound = 453.93 grams.

In this case, in order to fund the value of 18 pounds, we will have to multiply 18 by 453.93 grams.

This will be calculated as:

18lb = 18 × 453.93 grams.

= 8170.74 grams

The value is 8170.74 grams.

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By writing the fractions as decimals, we will see that the numbers ordered from least to greatest are:

-5, 2/16, 23/40

The 3 numbers given are:

-5

23/40

2/16

The numbers should be ordered as they appear on a number line (from left to right)

The smaller number is, obviously, the negative one, so the thing that we need to check now is what of the two fractions is smaller.

To do so, we can write them as decimals:

23/40 = 0.575

2/16 = 0.125

So the smaller one is 2/16 and then comes 23/40

Then the numbers ordered from smaller to larger are:

-5, 2/16,  23/40

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Answer:

El ciclista recorre en una hora:

18 kilómetros.

Step-by-step explanation:

1 hora = 60 minutos

1 minuto = 1/60 = 0.01667 horas

1 kilómetro = 1000 metros

300 metros = 300/1000 = 0.3 kilómetros

Entonces:

300 metros por minuto = 300metros/minuto

300 metros / minuto = 0.3kilómetros / 0.01667 horas

= 0.3/0.01667

= 18 kilómetros/hora

El ciclista recorre 18 kilómetros cada hora

Answer: 30$

Step-by-step explanation:

first you divide 420 by 35 and you get 12 times 2.50$ equals 30$

I WILL USE SUM OF INTERIOR ANGLES OF A TRIANGLE TO GET x

[tex](2x + 11) + (4x - 5) + 90 = 180 \\ 2x + 4x + 11 - 5 + 90 = 180 \\ 6x + 96 = 180 \\ 6x = 180 - 96 \\ 6x = 84 \\ \frac{6x}{6} = \frac{84}{6} \\ x = 14[/tex]

THE ANSWER IS OPTION a

X=14°

Answer:

2nd one, hope this helps

Step-by-step explanation:

Answer:

It is C.

Step-by-step explanation:

Do not listen to top answer

I got it right on unit test review ….

Unit rate is the quantity of an amount of something at a rate of one of another quantity.

3000 miles = 6 hours

4500 miles = 9 hours

The distance asteroid travel in 9 hours is 4500 miles

Unit rate is the quantity of an amount of something at a rate of one of another quantity.

In 2 hours, a man can walk for 6 miles

In 1 hour, a man will walk for 3 miles.

We have,

3000 miles = 6 hours

Divide both sides by 6.

500 miles = 1 hour

Multiply 9 on both sides.

9 x 500 miles = 9 hours

9 hours = 4500 miles

Thus,

The distance asteroid travel in 9 hours is 4500 miles

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The amount owed at the end of 1 year is $4120 and by the end of 2 years, $4243.60 when Tom borrows $4000 at an interest rate of 3% compounded each year.

The interest you earn on interest is known as compound interest. Simple math can be used to demonstrate this: if you have $100 and it earns 5% interest annually, you will have $105 at the end of the first year. You will end up with $110.25 at the end of the second year. In order to calculate compound interest, multiply the principal of the original loan by the annual interest rate multiplied by the number of compound periods minus one.

Here,

principle amount=$4000

rate of interest=3%

For first year,

A=P(1+r/n)^(nt)

A=4000(1+3/12)^12*1

A=$4,120.00

For first year,

A=P(1+r/n)^(nt)

A=4120(1+3/12)^12*1

A=$4,243.60

When Tom borrows $4000 at an interest rate of 3% compounded annually, the total amount due at the end of one year is $4120, and at the end of two years, it is $4243.60.

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AC is congruent to SU

The equation for the nth term of the arithmetic sequence is  [tex]a_{n}[/tex] = 25 - 4n  

An arithmetic sequence or arithmetic progression is a series of numbers with a common difference. For example 1, 2, 3, 4... is an Arithmetic sequence with a common difference 1. In an Arithmetic sequence, the difference between every two consecutive terms will be equal.

The formula for the nth term of a sequence is given below

=> [tex]a_{n}[/tex] = a + (n-1)d

where a is the first term and d is a common difference.

Here we have

21, 17, 13 ... is the arithmetic sequence

Where first term a = 21

and common difference d = term2 - term1 = 17 - 21 = - 4  

As we know the nth term of AP, [tex]a_{n}[/tex] = a + (n-1)d  

=>  [tex]a_{n}[/tex] = 21 + (n-1)(-4)

=>  [tex]a_{n}[/tex] = 21 - 4n + 4

=>  [tex]a_{n}[/tex] = 25 - 4n

Therefore,

The equation for the nth term of the arithmetic sequence is  [tex]a_{n}[/tex] = 25 - 4n  

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Answer:

5(d)

Step-by-step explanation:

(3.0471×10⁹)/2.4×10^-4

30471×10^9-4÷24×10^-4-1

30471×10⁵÷24×10^-5

(30471÷24)×10^5-(-5)

1269.625×10^5+5

1269.625×10¹⁰

1.269625×10^10-3

1.269625×10⁷

1.2696 to 5s.f

The explicit equation for the table is,

f(n) = n² + 4

Given, the values of an explicit function,

Let the function be,

f(n) = an² + bn + c

f(1) = a(1)² + b(1) + c

5 = a + b + c

f(2) = a(2)² + b(2) + c

8 = 4a + 2b + c

f(3) = a(3)² + b(3) + c

13 = 9a + 3b + c

On subtracting the equations, we get

5 = 5a + b

3 = 3a + b

Again, on subtracting we get

2 = 2a

a = 1

On putting the values we get,

b = 0.

a + b + c = 5

1 + 0 + c = 5

c = 4

Hence, the explicit equation for the table is,

f(n) = n² + 4

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Answer:

Time 2 540 years

Step-by-step explanation:

T = 5 600 yares - Half-life

73% - Carbon content

N = 0.73·N₀

Decay constant:

λ = ln 2 / T = 0.693 / 5600 ≈ 0.000124  (years)⁻¹

Law of radioactive decay:

N = N₀·e^(-λ·t)

0.73·N₀ = N₀·e^(-λ·t)

0.73 = e^(-λ·t)

ln (0.73) = -λ·t

t = ln (0.73) / (-λ)  = ln (0.73) / (- 0.000124)  ≈ 2 540 years

It will take 37.5 years.

From the question, we have

A_0 = 8 billion

A  = 9 billion.

r= 3% per year

A  = A_0*e^rt

9 = 8*e^3t/100

9/8 = e^3t/100

Taking log_e both sides,

log_e 9/8 = log_e e^3t/100

9/8 = 3t/100

t = (9*100)/(8*3)

t = 37.5 years

Multiplication:

Finding the product of two or more numbers in mathematics is done by multiplying the numbers. It is one of the fundamental operations in mathematics that we perform on a daily basis. Multiplication tables are the main use that is obvious. In mathematics, the repeated addition of one number in relation to another is represented by the multiplication of two numbers. These figures can be fractions, integers, whole numbers, natural numbers, etc. When m is multiplied by n, either m is added to itself 'n' times or the other way around.

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The quotient of -0.75 /0.4 is approximately -1.88.

What is the quotient?

This refers to the value you get after division operation has been carried out.

given in the question:

-0.75/0.4 = -1.875

≈ -1.88

Recall, according to the sign rule in mathematics:

Any negative number divided by a positive number gives a negative value.

hence the quotient of -0.75/0.4= -1.875

                                                   ≈ -1.88

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The amount that Kathy got back after 4 years and 6 months is  $3945   .

In the question ,

it is given that ,

the amount invested by Kathy(P) = $3000

the rate at which the amount is invested (r) = 7% per annum

time for which the amount is invested (t) = 4 years and 6 month = 4.5 years

the simple interest calculated by

Simple Interest = ( 3000 × 7 × 4.5)/100

= 94500/100

= 945

So , the interest is $945 .

So , the amount that Kathy get = Principle + Interest

= 3000 + 945

= 3945

Therefore , amount that Kathy got back after 4 years and 6 months is  $3945   .

The given question is incomplete , the complete question is

Kathy invested $3000 at a rate of 7% simple interest for 4 years and 6 months. Find the amount she got back.

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The percentage increase in cost greater from 2009 is 14.79%

The average price of milk in 2009 = $3.11

The average of price of milk in 2011 = $3.57

The increase in price = The average of price of milk in 2011 - The average price of milk in 2009

Substitute the values in the equation

The increase in price = 3.57 - 3.11

= $0.46

The percentage increase = The increase in price / The average price of milk in 2009 × 100

Substitute the values in the equation

The percentage increase = ( 0.46 / 3.11 )×100

= 14.79%

Hence, the percentage increase in cost greater from 2009 is 14.79%

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Answer:

y = 35.5x - 10

Step-by-step explanation:

If we graph the function with the help of the given table,

Since, there is a common difference in each term of 'cost of gym membership'

d = 61 - 25.5 = 35.5

d = 96.5 - 61 = 35.5

Graph will represent a linear function.

Let the equation of the line is,

y - y' = m(x - x')

where (x', y') is a point lying on the graph and 'm' is the slope.

Two points lying on the graph are (1, 25.5) and (2, 61).

Slope of the line =

                          =

                          = 35.5

Equation of the line passing through (1, 25.5) having slope 'm' = 35.5

y - 25.5 = 35.5(x - 1)

y = 35.5x - 35.5 + 25.5

y = 35.5x - 10

Here x = duration of membership

y = membership price

Therefore, equation representing Fit Zoom's membership price equation will be,

y = 35.5x - 10

y<2 is the solution to the inequality

What is Linear Inequality?

The mathematical expression with unequal sides is known as an inequality in mathematics. Inequality is referred to in mathematics when a relationship results in a non-equal comparison between two expressions or two numbers. In this instance, any of the inequality symbols, such as greater than symbol (>), less than symbol (), greater than or equal to symbol (), less than or equal to symbol (), or not equal to symbol (), is used in place of the equal sign "=" in the expression. Polynomial inequality, rational inequality, and absolute value inequality are the various types of inequalities that can exist in mathematics.

The symbols "" and ">" signify tight inequalities, while "" and "" signify slack inequalities. A linear inequality looks precisely like a linear equation, but the symbol connecting two expressions is different.

According to the question

2y+3<7

subtracting 3 from both sides

we get,

2y<4

dividing both sides with 2

we get,

y<2

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Answer:

which image

Step-by-step explanation:

if you tell me I will answer the question

Answer:

image not found

you can send the image privately

Answer:

Step-by-step explanation:

x^-3 * x^-3

The required amount in the savings account=$2704.05

What is simple interest?

Calculating the interest on a loan using simple interest is quick and simple. Simple interest is calculated by dividing the principle by the daily interest rate and the number of days between installments.

A quick and simple way to figure out interest on money is to use the simple interest technique, which adds interest at the same rate for each time cycle and always to the initial principal amount. Any bank where we deposit our funds will pay us interest on our investment. One of the different types of interest charged by banks is simple interest.

P=2700, r=0.3%=0.003, t= 0.5 year

A= P(1+rt)

 = 2700(1+ 0.003*0.5)

 = 2700(1+ 0.0015)

 = 2700(1.0015)

 = 2704.05

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The quadratic function h (x) = x^2 + 3x − 18 by completing the square is witten as h(x) = (x + 1.5)^2  - 20.25.

We are given a quadratic function:

h (x) = x^2 + 3x − 18

We need to rewrite the function by completing the square.

We can see the coefficient of x is 3.

So, we will add and subtract the square of half that.

So, find the square of half of 3, we will get;

(3 / 2)^2 = 9 / 4 = 2.25

add and subtract the square of half of 3 from the given function, we will get;

h(x) = x^2 +3x + -18 2.25 -2.25

arrange the expression, we will get;

h(x) = (x^2 +3x +2.25) -18 -2.25

write the expression in parentheses as a square, and simplify the constant, we will get;

h(x) = (x + 1.5)^2  - 20.25

So, the square function is written as h(x) = (x + 1.5)^2  - 20.25.

Thus, the quadratic function h (x) = x^2 + 3x − 18 by completing the square is witten as h(x) = (x + 1.5)^2  - 20.25.

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Answer:

Why is | 330 | the absolute value of the number 330?

The absolute value of a number is how far away the number is from zero. The absolute value is ALWAYS positive.

What is the absolute value of -330?

The negative version of the number is also | 330 |

More Examples

Here are more examples of even and odd numbers in sequence:

Number 328 329 331 332

Absolute Value 328 329 331 332

the slope is 1 because 3/3

Answer:

1

Step-by-step explanation:

When two points are given;

= -4-(-7)/5-2

= -4+7/3

= 3/3

=1