What is the value of the expression 3 -4?

Answer:

43

Step-by-step explanation:

-2+3×15

45-2

43 is the answer

60 is the answer of multiplication .

What does math multiplication mean?

Multiplication in mathematics is a technique for determining the sum of two or more numbers. It is one of the fundamental operations in mathematics that we employ on a daily basis. One of the fundamental operations in mathematics is multiplication.

                        The result of multiplying two or more numbers together is known as the product. The first number that the other is multiplied by in a two-number operation is referred to as the multiplicand.

        15 x 4  =  60

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Answer:

FOR (i) The answer will be 40

FOR(ii) Draw a rectangle and two intersecting circles.

The middle intersection part will have 20

The left circle (TEA) will have 40

Right circle (COFFEE) will have 55

Outside then circle, put 10.

Answer:

There are several ways to make 45 cents using different coins:

Nine nickels

Four dimes and one nickel

Three dimes and six nickels

Two dimes and one quarter

One dime, two nickels, and three pennies

One quarter and two dimes

One quarter, one dime, and four nickels

One quarter, three nickels, and five pennies

45 pennies

So there are 9 ways to make 45 cents.

I Hope This Helps!

yes, the probabilities associated with each X are all positive and they all add up to 1.

What is probability?

The probability of an event can be calculated using the probability formula by simply dividing the favourable number of possibilities by the total number of outcomes. The likelihood of an event occurring can be anywhere between 0 and 1, as the favourable number of outcomes can never exceed the total number of outcomes.

For the given probability distribution, we have

A) The sum for all probabilities in the second column is 1. So, this is a probability distribution.

b) yes, the probabilities associated with each X are all positive and they all add up to 1 in the given table.

Hence, the probabilities associated with each X are all positive and they all add up to 1

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The percent increase in the volume of the prism is 33.1%.

We have,

To calculate the percent increase in the volume of a rectangular prism when all dimensions are increased by 10%, we can use the formula:

Percent Increase

= (New Volume - Original Volume) / Original Volume x 100

Let's denote the original width, length, and height as W, L, and H, respectively.

The original volume (V1) can be calculated as:

V1 = W x L x H

After increasing each dimension by 10%, the new width, length, and height become 1.1W, 1.1L, and 1.1H, respectively.

The new volume (V2) can be calculated as:

V2 = (1.1W) x (1.1L) x (1.1H) = 1.331W x L x H

Now, we can substitute the values into the percent increase formula:

Percent Increase = (V2 - V1) / V1 x 100

= (1.331W x L x H - W x L x H) / (W x L x H) x 100

= 0.331 x 100

= 33.1%

Therefore,

The percent increase in the volume of the prism is 33.1%.

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The percent increase in the volume of the prism is 33.1%.

Given:

To the percent increase in the volume of a rectangular prism when all dimensions are increased by 10%.

The formula for percent increase is as:

Percent Increase = (New Volume - Original Volume)/Original Volume × 100

The original width, length, and height as W, L, and H, respectively.

The original volume (V₁) can be calculated as:

V₁ = W x L x H

After increasing each dimension by 10%, the new width, length, and height become 1.1 W, 1.1 L, and 1.1 H, respectively.

The new volume (V₂) can be calculated as:

V₂ = (1.1 W) x (1.1 L) x (1.1 H) = 1.331 (W x L x H)

Now, we can substitute the values into the percent increase formula:

Percent Increase = (V₂ - V₁) / V₁ x 100

                             = (1.331 W x L x H - W x L x H) / (W x L x H) x 100

                             = 0.331 x 100

                             = 33.1%

Therefore, the percent increase in the volume of the prism is 33.1%.

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When making a joint probability table, the type of probabilities is contained in the cells except those cells on the margin of the table joint probabilities, while those on the margins are marginal probabilities.

A joint probability refers to the probability that two independent events will both occur. two or more random variables. It is a statistical measure that calculates the probability of two events occurring together and at the same point in time i.e., joint probability is the probability of event Y occurring at the same time that event X occurs. A joint probability table represents a joint probability distribution for two or more random variables illustrating the relationship between variables (it uses variables or conditions instead of events). In the joint probability table, the type of probabilities that are contained in the cells are joint probabilities, while those on the margins are marginal probabilities (probabilities of values of the variables in the subset without reference to the values of the other variables.).

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If 60% of household use internet service and 80% use television service , then the probability that at least one of these two services from the company is 90%  .

the percent of house hold that use internet service from company is = P(I) = 60% ;

the percent of house hold that use television service from the company is = P(T) = 80% ;

the percent of house hold that use both the services= P(I & T) = 50%  ;

So , the probability that at least one of these two services from the company is calculated as :  P(I or T) = P(I) + P(T) - P(I&T)

⇒ P(I or T)= 60 + 80 - 50 ;

⇒ P(I or T)= 90%  .

Therefore , the required probability is 90% .

The given question is incomplete , the complete question is

In a certain residential suburb, 60% of all households get internet service from the local cable company, 80% get television service from that company, and 50% get both services from that company.

What is the probability that it gets at least one of these two services from the company ?

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If a costumer decides to pay in cash then saved £3.6.

What is mean by Percentage?

A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.

To Calculate the percent of a number , divide the number by whole number and multiply by 100.

Given that;

A cash discount of 8% is allowed on an item which costs £45.

Now, The amount of Saved money calculated as;

Since, A cash discount of 8% is allowed on an item which costs £45.

Hence,

Saved money = 8% of £45

                      = 8 x 45 / 100

                      = 3.6

Thus, Saved money = 3.6

Therefore, If a costumer decides to pay in cash then saved £3.6.

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Answer: 1

\((\frac{x^{a+b} }{x^{c} }) ^{a-b}.(\frac{x^{b+c} }{x^{a} }) ^{b-c} .(\frac{x^{c+a} }{x^{b} })^{c-a}\\\\= \frac{x^{(a+b)(a-b)} }{x^{c(a-b)} }.\frac{x^{(b+c)(b-c)} }{x^{a(b-c)} }.\frac{x^{(c+a)(c-a)} }{x^{b(c-a)} }\\\\=\frac{x^{a^{2}-b^{2} } }{x^{ac-bc} }.\frac{x^{b^{2}-c^{2} } }{x^{ab-ac} }.\frac{x^{c^{2}-a^{2} } }{x^{bc-ab} } \\\\=\frac{x^{a^{2}-b^{2}+b^{2}-c^{2}+c^{2}-a^{2} } }{x^{ac-bc+ab-ac+bc-ab} }\\\\=\frac{x^{0} }{x^{0} }=1\)

Step-by-step explanation:

The function f(x) is: f(x) = \((1/2) ln|x^2 + 3| - (1/2) ln|7|\) given that f(2) = 0 and the tangent line at (x, f(x)) has a slope x/(x² + 3).

Let's find f(x) step-by-step:

1. We know that the slope of the tangent line is the derivative of the function, f'(x). So, we have f'(x) = x/(x² + 3).

2. To find f(x), we need to integrate f'(x) with respect to x.

3. Integrate x/(x² + 3) dx. Using substitution, let u = x² + 3, so du = 2x dx. Therefore, the integral becomes \((1/2)\int\ {(1/u)} \, du\).

4. Now, integrate \((1/2)\int\ {(1/u)} \, du\) = (1/2) ln|u| + C = (1/2) ln|x² + 3| + C.

5. We have f(x) = (1/2) ln|x² + 3| + C. To find the constant C, we'll use the given condition f(2) = 0.

6. Plug in x = 2: 0 = (1/2) ln|2² + 3| + C. Simplify and solve for C: C = - (1/2) ln|7|.

7. Now we have the function f(x) =  \((1/2) ln|x^2 + 3| - (1/2) ln|7|\).

So, f(x) =  \((1/2) ln|x^2 + 3| - (1/2) ln|7|\).

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Answer:

1/8 times x + 20=30; in this equation x equals 80. let's take it step by step

Step-by-step explanation:

First off its good to write the equation out so it's easier to read but here are the steps:

First off we know that a number increased by 20 will give us 30. THe only number that can be increased by 20 to give 30, is 10. So now we know that 1/8 of a number will give us 10. To find the number all we need to do is divide 1/8 by 10. 1/8 / 10= 8/1 x 10/1 = 80

now we can test our answer:

1/8 of 80 is 10 and 10 increased by 20 is 30.

Therefore your answer is 80.

Answer: 16

Step-by-step explanation:

\(f(x)=x^2 + 2x + 1\)

Since the coefficient of x^2 is 1, we know that the graph does *not* open downwards. However, the graph has been shifted left and right. This will make the maximum occur at a different place than normally.

Specifically, it has been shifted to the left, by 1 unit.

So the maximum will occur at x = 3.

lets plug in:

\(f(3)=(3)^2 + 2(3) + 1\)

\(f(3)=9 + 6 + 1\)

\(f(3)=16\)

The largest y valye is 16

Answer:

16

Step-by-step explanation:

The researcher should consider the following steps when creating the two groups: Random assignment, Pairing students with similar abilities, Controlling for potential confounding variables,

Collecting data and analyzing results.
Random assignment:

To minimize any potential bias, the researcher should randomly assign one student from each pair to receive extra homework problems while the other does not.
Pairing students with similar abilities:

In order to make a valid comparison, the researcher should pair students with similar algebra skills or previous performance in the subject.

This way, any observed differences in the test results are more likely to be due to the extra homework rather than differences in ability.
Controlling for potential confounding variables:

The researcher should control for any other factors that could influence students' algebra test results, such as attendance, study habits, and teacher quality.

After the two-week period, the researcher should collect the test scores of both groups and compare their performance.

This can be done using statistical methods, such as a paired t-test, to determine if there is a significant difference between the groups.

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Answer:

13 dollars and 12 cents

Step-by-step explanation:

I added all of the ingredient prices in parenthesis then multiplies it by 4. :)

The value of x is 18° and the value of the angles A and B are 73° and 107° respectively.

We are given the angle measurements as:

A = (6x - 35)°

B = (3x + 53)°

We need to solve for x and find the values of A and B

We know that co- interior angles are supplementary.

So, we get that:

A + B = 180°

Substituting the values of A and B in the above equation, we get that:

6 x - 35 + 3 x + 53 = 180

9 x + 18 = 180

9 x = 180 - 18

9 x = 162

x = 162 / 9

x = 18

So, we now get that:

A = (6x - 35)°

A = (6(18) - 35)°

A =(108 - 35)°

A = 73°

B = (3 x + 53)°

B = (3 (18) + 53)°

B = ( 54 + 53 )°

B = 107°

Therefore, we get that the  value of x is 18° and the value of the angles A and B are 73° and 107° respectively.

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Answer:

Geometric.

Step-by-step explanation:

It is Geometric because there is a common ratio between the terms.

50p/100p = 1/2

25p/50p = 1/2

The common ratio is 1/2.

Each term is obtained by multiplying by 1/2, so the next term in this progression is 25p * 1/2 = 12.5p.

Answer:

There are many to do this, but the simplest way is to put the fractions into a calculator (16*14)+9 ÷ 16 = 14.5625 . and (16*11)+13 ÷16 = 11.8125

If they are looking for which one is higher?  The birdhouse.  

If they want the difference? Subtract one from the other = 2.75 units

Step-by-step explanation:

Answer:

y = 11/4

Step-by-step explanation:

(1/4)⁻³ x (4)⁸ = (1/4)^-4y

4³ x 4⁸ = 4^4y

=> 11 = 4y

=> y = 11/4

f(x) = x^2 - 5x for the domain 2,4,7

whywh

Answer:

diameter=14

radius =14/2=7

area =πr²

hope it helps

Step-by-step explanation:

Area of circle = 2π r²

diameter is 14 cm so radius will be 7 cm

= 2 × 22/7 × 7 × 7

= 44 × 7

= 308 cm²

Answer:

\(f'(x)= \frac{13}{(2x+3)^2}\\\)

Step-by-step explanation:

\(f(x)= \frac{3x-2}{2x+3} \\\)

\(f'(x)=\frac{dy}{dx} = \frac{d}{dx}(\frac{3x-2}{2x+3})\\ f'(x)= \frac{(2x+3)\frac{d}{dx}(3x-2)-(3x-2)\frac{d}{dx}(2x+3) }{(2x+3)^{2} } \\f'(x)= \frac{(2x+3)(3)-(3x-2)(2)}{(2x+3)^{2} } \\\)

\(f'(x)= \frac{6x+9-6x+4}{(2x+3)^{2} }\\ f'(x)= \frac{13}{(2x+3)^2}\\\)

Solving (7.80 × 10^7) / (1.0 x 10^4) and giving the answer in scientific notation is 78.7 * 10^-3

Using scientific notation, one can express extremely big or extremely small values.

If a number between 1 and 10 is multiplied by a power of 10, the result is written in scientific notation.

Solving the problem (7.80 × 10^7) / (1.0 x 10^4)

The division

= (7.80 × 10^7) / (1.0 x 10^4)

= 0.0787

= 78.7 * 10^-3

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The attached graph describes the relationship between the amount of money raised and the number of students who attend the dance

The parameters that will help us to determine the graph are

Decorations for the dance cost $80,

The club is charging $10 per student that attends

This forms a linear equation:

y = mx + b

y = 10x - 80

Plotting the graph:

That is the full solution of the equation

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Answer: 4.5 x 1012 = 4554x

Step-by-step explanation:

5.12 x 109 = 558.08

Answer:

62

Step-by-step explanation:

775 steps divided by 12.5 minutes is 62 steps per minute.

The scientist first operated the time-travel machine in the year 7.

To determine the year the scientist first operated the time-travel machine, we need to work backward from the given end point of 2023.

Since he ended up in 2023, we know that after going back 2000 years, the scientist was in the year 23. Going back even further, we subtract three years to account for the initial forward jump. This takes us to the year 20.

From there, we need to find the year when the scientist made the jump forward by two times the current year. To do this, we divide 20 by 2, resulting in 10. This means that the scientist made the jump forward in the year 10.

Finally, to determine the year when he first operated the time-travel machine, we subtract three more years from 10, which gives us the year 7.

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a. The average daily balance is $6,696.67, finance charge is $115.59 and new balance is $6,812.26.

b. The average daily balance is $7,039.34, finance charge is $121.50 and the new balance is $7,160.84.

Average Daily Balance:

September 20 - October 1: $4,100

October 2 - October 19: $4,100

Average Daily Balance = (30 * $4,100 + 19 * $4,100) / 30

Average Daily Balance = $6,696.66667

Average Daily Balance = $6,696.67

Finance Charge:

Finance Charge = ($6,696.67) * (0.21) * (30) / (365)

Finance Charge = 115.586359

Finance Charge = $115.59

New Balance = Previous Balance + Finance Charge

New Balance = $6,696.67 + $115.59

New Balance = $6,812.26

Average Daily Balance:

October 20 - November 10: $6,812.26

November 11 - November 19: $6,812.26

Average Daily Balance = (22 * $6,812.26 + 9 * $6,812.26) / 30

Average Daily Balance = $7,039.33533

Average Daily Balance = $7,039.34

Finance Charge = ($$7,039.34) * (0.21) * (30) / (365)

Finance Charge = 121.500937

Finance Charge = $121.50

New Balance = Previous Balance + Finance Charge

New Balance = $7,039.34 + $121.50

New Balance = $7,160.84

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The answers are:

(a) Average daily balance: $4,080.67, finance charge: $71.42, new balance: $8,212.09

(b) Average daily balance: $8,189.23, finance charge: $143.28, new balance: $16,505.60

(c) Average daily balance: $16,485.20, finance charge: $288.04, new balance: $32,239.84

To solve these problems, we need to calculate the average daily balance, finance charge, and new balance for each billing period.

(a) September 20 through October 19 billing period:

Average Daily Balance = (Balance * Number of Days) / Number of Days in the Billing Period

Since you make the minimum required payment of $39 on October 1, we need to consider the remaining balance from September 20 to September 30.

Remaining balance from September 20 to September 30

= $4,100 - $39 = $4,061

Average Daily Balance = ($4,061 * 10 + $4,100 * 20) / 30 = $4,080.67

Finance Charge = Average Daily Balance * Monthly Interest Rate

Monthly Interest Rate = Annual Interest Rate / 12 = 21% / 12 = 0.0175

Finance Charge = $4,080.67 * 0.0175 = $71.42

New Balance = Average Daily Balance + Finance Charge + Remaining Balance

Remaining Balance = $4,100 - $39 = $4,061

New Balance = $4,080.67 + $71.42 + $4,061 = $8,212.09

(b) October 20 through November 19 billing period:

Average Daily Balance = (Balance * Number of Days) / Number of Days in the Billing Period

Since you make the minimum required payment of $39 on November 11, we need to consider the remaining balance from October 20 to November 10.

Remaining balance from October 20 to November 10 = $8,212.09 - $39 = $8,173.09

Average Daily Balance = ($8,173.09 * 21 + $8,212.09 * 10) / 31 = $8,189.23

Finance Charge = Average Daily Balance * Monthly Interest Rate

Finance Charge = $8,189.23 * 0.0175 = $143.28

New Balance = Average Daily Balance + Finance Charge + Remaining Balance

Remaining Balance = $8,212.09 - $39 = $8,173.09

New Balance = $8,189.23 + $143.28 + $8,173.09 = $16,505.60

(c) November 20 through December 19 billing period:

Average Daily Balance = (Balance * Number of Days) / Number of Days in the Billing Period

Since you make the minimum required payment of $39 on November 30, we need to consider the remaining balance from November 20 to November 29.

Remaining balance from November 20 to November 29 = $16,505.60 - $39 = $16,466.60

Average Daily Balance = ($16,466.60 * 10 + $16,505.60 * 20) / 30 = $16,485.20

Finance Charge = Average Daily Balance * Monthly Interest Rate

Finance Charge = $16,485.20 * 0.0175 = $288.04

New Balance = Average Daily Balance + Finance Charge + Remaining Balance

Remaining Balance = $16,505.60 - $39 = $16,466.60

New Balance = $16,485.20 + $288.04 + $16,466.60 = $32,239.84

Therefore, the answers are:

(a) Average daily balance: $4,080.67, finance charge: $71.42, new balance: $8,212.09

(b) Average daily balance: $8,189.23, finance charge: $143.28, new balance: $16,505.60

(c) Average daily balance: $16,485.20, finance charge: $288.04, new balance: $32,239.84

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Answer:

50000

Step-by-step explanation:

Answer:

The answer is 50000

Step-by-step explanation: