Match each system of equations to the inverse of its coefficient matrix, A-1, and the matrix of its solution, X.

Answer:

Step-by-step explanation:

perimeter is the sun of all sides, so, (x)+(x+3)+(x-4)+(2x)

                                                            = x+x+3+x-4+2x

                                                            = 5x-1 is the answer

Answer:

Step-by-step explanation:jed

Answer:

2

Step-by-step explanation:

( 5 ⋅ 2 − 9 ) + 2 ⋅ 1/2

= ( 10 - 9 ) + 2 ⋅ 1/2

= 1 + 2 ⋅ 1/2

= 1 + 1

= 2

The expression for the statement is 4y - 1 = 3y + 4 and the number is 4.

The outcome of adding two or more numbers or phrases is known as the sum in mathematics. The sum is a method of bringing things together as a result.

Let's assume the number to be y.

Then,

4 times the number = 4y

6 times the number = 6y

Now, the sum of four times a number and -1 is equal to 6 times a number and 3.

4 × ( the number) + (-1) = 3 × ( the number) + 3

4 × (y) + (-1) = 3 × (y) + 3

4y - 1 = 3y + 3

Now, add 1 on each side:

4y - 1 + 1 = 3y + 3 + 1

4y = 3y + 4

Subtracting by 3y from each side:

4y - 3y = 3y + 4 - 3y

y = 4

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The number of weeks whwn the Vasquez family both visit their grandmother and host the neighborhood party is 24 weeks.

The weeks will all three events occur is 48 weeks.

From the information, the Vasquez family visit their grandmother every three weeks and host a neighborhood party every eight weeks.

Therefore, this situation is just to find the least common factor of 3 and 8. This is 24

Therefore, the number of weeks whwn the Vasquez family both visit their grandmother and host the neighborhood party is 24 weeks.

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Out of all the T-shirts in shop, the fraction of T-shirts that are blue, medium, and on sale is x/8.

Let us assume the total number of shirts be x. So, the number of blue shirts in the shop are 3x/7.

Number of blue shirts on sale = 3x/7 × 7/8

Cancelling 7 common in numerator and denominator and performing multiplication

Number of blue shirts on sale = 3x/8

Number of blue shirts on sale medium in size = 3x/8 × 1/3

Cancelling 3 common in numerator and denominator and performing multiplication

Number of blue shirts on sale medium in size = x/8

Hence, the required fraction of T-shirts are x/8.

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Answer:

23

Step-by-step explanation:

9 + 2(4 + 3)

9 + ((2 * 4) + (2 * 3))

9 + (8 + 6)

9 + 14

23

Step-by-step explanation:    

Calculate within parentheses (4+3) : 7

[tex]=9+2\cdot \:7[/tex]

Multiply and divide (left to right) 2 . 7 : 14

[tex]=9+14[/tex]

Add and subtract (left to right) 9 + 14: 23

ANSWER: [tex]=23[/tex]

Explanation in words (Short Form)

-  The first step is to calculate within parentheses and the answer will result as 23

- The second step is to add and subtract so 9+14 = 23.

- The third step is to find the answer which is 23

Answer:  

23

Hope this helps.

The print statement System.out. printIn("bc" + 2 + 3) would print "bc23"

The statement is given as

System.out. printIn("bc" + 2 + 3)

The above statement is a Java print statement

The expressions in the print bracket would be treated as strings.

This is so because of the first statement "bc"

So, the statements would be concatenated

Hence, the print statement System.out. printIn("bc" + 2 + 3) would print "bc23"

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Answer: first one

Step-by-step explanation:

The formula for moose population, P, in terms of t, the years since 1990 would be P(t) = -110t + 4730.

The equation of the straight line has its slope and given point.

If we have a non-vertical line that passes through any point(x1, y1) has gradient m. then general point (x, y) must satisfy the equation

y-y₁ = m(x-x₁)

Which is the required equation of a line in a point-slope form.

Let's consider x on the graph to be years since 1990 and y on the graph to be the number of Moose.

We have two points on the graph as (4, 4290) and (8, 3850)

Now we can find the slope of this line:

m = (y2 - y1)/(x2 - x1)          

Substitution;      

m = (3850 - 4290)/(8 - 4)          

Solve the subtraction in the parenthesis;

m = -440/4                              

m = -110                                  

Then we have the slope of the line, we can use the point-slope formula to find the equation for the line.

y - y1 = m(x - x1)                                    

Substitution;

y - 4290 = -110(x - 4)                            

y - 4290 = -110x + 440                            

y - 4290 + 4290 = -110x + 440 + 4290      

y = -110x + 4730                                    

Since the formula that is being sought is supposed to be in terms of P and t, we will replace y with P and x with t.

P(t) = -110t + 4730

To predict the population in 2006, we have to determine the years from 1990 to 2006.

2006 - 1990 = 16

P(16) = -110 (16) + 4730

P(16) = -1760 + 4730

P(16) = 2970

Hence, The formula for moose population, P, in terms of t, the years since 1990 would be P(t) = -110t + 4730.

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On the basis that the woman invests in the 15% bond, she be  will able to invest $18,750 in the CD

What is the total expected interest from both investments?

The investment is based  on the fact the investor is able to make $3,000 in  interest from the bond and CD investments

total expected interest=$3,000

interest on bond investment=15%*x=0.15x

amount invested in CD=30000-x

interest on CD=(30000-x)*7%

interest on CD=2100-0.07x

total interest=0.15x+2100-0.07x

total interest=3000

3000=0.15x+2100-0.07x

3000=0.08x+2100

3000-2100=0.08x

900=0.08x

x=900/0.08

x=amount invested in the bond=$11,250

amount invested in CD=$30,000-$11,250

amount invested in CD=$18,750

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The total cost of the home is 1,70,000 .

given,

down payment of home=23800

14 percent of the cost of their home

Then from here the rule says that ,

=100 x 23800/14

=1,70,000

therefore, we get a result of the total cost of the home that is ,

1,70,000.

The term percentile and the related term percentile rank are often used in the reporting of scores from norm-referenced tests. For example, if a score is at the 86th percentile, where 86 is the percentile rank, it is equal to the value below which 86% of the observations may be found. In contrast, if it is in the 86th percentile, the score is at or below the value of which 86% of the observations may be found. Every score is in the 100th percentile.

The 25th percentile is also known as the first quartile (Q1), the 50th percentile as the median or second quartile (Q2), and the 75th percentile as the third quartile (Q3). In general, percentiles and quartiles are specific types of quantiles.

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The number of girls is 147 and the number of boys is 245 in the introductory geology course

Students enrolled in the introductory geology course = 392 students

The ratio of boys to girls in the course = 5:3

Let the number of girls in the course be x, then the number of boys will be 392-x

Formulating the equation we get:

Number of boys/Number of girls = Ratio of boys/Ratio of girls

= 392-x/x = 5/3

= (392-x)*3 = 5x

= 1176-3x = 5x

=1176 = 8x

x = 147

Hence, the number of girls is 147 and the number of boys is 245

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It should be noted that the factoring of x⁴ - x² - 16 will be (x + 4)(x - 4).

It should be noted that the expression given is illustrated as:

x⁴ - x² - 16

= x² - 16

= x² - 4²

= (x + 4)(x - 4)

Therefore, the factoring of x⁴ - x² - 16 will be (x + 4)(x - 4).

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Answer:

[tex]\frac14[/tex]

Step-by-step explanation:

Both the numerator and the denominator have the common factor of 7, therefore, we can divide them both by 7 to further simplify the fraction.

[tex]\frac7{28} \to \frac{\frac77}{\frac{28}7} \to \frac14[/tex]

2304 times 3 goes into 6912 and gives the remainder as 0.

The numerator number in the given division number 6912 by 3 is known as a dividend, and the denominator number is known as a divisor. As a result, 6912 is the dividend number and 3 is the divisor number.

Division is one of the four fundamental mathematical operations, along with addition, subtraction, and multiplication. Division is defined as the splitting of a large group into smaller groups so that each group has an equal number of items. In mathematics, it is an operation used for equal grouping and equal sharing.

Division is a basic arithmetic operation in which a larger number is divided into smaller groups with the same number of items. For example, how many total groups will be formed if 30 students must be divided into groups of 5 students for a sporting event? Such problems are easily solved by using the division operation. Here, we must divide 30 by 5. 30 5 = 6 will be the result. As a result, there will be six groups of five students each.

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Answer:

225

Step-by-step explanation:

x² -y³

Evaluate for x=3,y=−6

3²−(−6)³

3²−(−6)³

=225

Answer ANSWER (x+3) 12

Step-by-step explanation:

The solution to the given equation round to the nearest tenth as required in the task content is; 0.7.

According to the task content, the solution to the equation given is to be determined round to the nearest tenth.

On this note, the equation can be solved as follows;

53/2 = 18/x

By cross-multiplication; we have;

53 × x = 2 × 18

53x = 36

x = 36/53

x = 0.679

However, when round to the nearest tenth, x = 0.7.

Ultimately, The solution to the given equation round to the nearest tenth as required in the task content is; 0.7.

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The three budget planning tips can be , to be aware of your net income , listing your monthly expenses and making adjustments.

What is a budget ?

A budget is an estimation of revenue and expenses over a specified future period of time.

We know that budgets can be created for an individual, a team of individuals, a business, a government, or pretty much anything else that generates and spends money.

The 3 budget planning tips can be as follows.

1.

First tip is to be aware of your net income. Finding out how much money you have coming in is the first step in making a budget. Setting up a budget is a crucial part of managing your finances and spending patterns. So , you must figure out how much money you are spending in order to develop a budget.

2.

Second tips can be to list your monthly expenses. The monthly expenses can be many such as rent payments , loan payments , insurances and utilities.

3.

Making adjustments is a third planning suggestion. You just compare your monthly expenses and net income. You'll need to alter your spending if you find that your expenses exceeds your income.

Therefore , the three budget planning tips can be , to be aware of your net income , listing your monthly expenses and making adjustments.

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Six and fifty-three thousandths

I'm sure

The equation that relates the total amount of gasoline in the tank is;

y = x + 4.

For the given question;

The amount of gasoline already present in tank is 4 gallons.

The number of gallons filled above the the previous gasoline is x.

Thus, now the total gasoline present in this tank is x + 4.

If y shows the total gasoline in tank;

Then,

y = x + 4.

Therefore, the total amount of gasoline present in tank is given by equation is; y = x + 4.

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The best description of a best efforts underwriting commitment is Underwriter commits to selling as much of the issue as possible at the agreed-on offering price but can return any unsold shares to the issuer without financial responsibility.

In a best efforts underwriting commitment, the Underwriter will make a commitment by which they promise to sell as much as they can of a company's stock at a price that is best.

This price would have been agreed between the underwriter and the company.

However, if the stock issue is not sold entirely and there are unsold shares, then these unsold shares are returned to the issuer with no financial responsibility for the underwriter.

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The likelihood that it will land on red is the same as the likelihood that probability it will land on yellow. In this case, 52.

What exactly is probability?

Probability is a branch of mathematics that deals with numerical representations of the likelihood of an event occurring or of a proposition being true.

The probability of an event is a number between 0 and 1, with 0 generally denoting impossibility and 1 roughly denoting certainty.

based on the available facts;

Given, color likelihood Green Brown Yellow Red

P(R) + P(a) + P(B) + P(Y) = 1

2P(CR) + 0-74=1

P(R) 0.26/2

= 0.13 P(Y)

As it is span 400 times -

No. of times green= 0.2 off 400

                              =1/5 *(400)

                              =80

No. of times Brown= 0.54*100

                                =216

No. of times Red= 0.13× 400

                            = 52= No. of times yellow

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Following are the numbers correct to 3 significant figures

Answers to the following questions:

(1) Round to the needed significant figure: 37400;

(2) Round to the required significant figure: 84600;

(3) Round to the required significant figure: 261;

(4) Round to the needed significant figure: 0.00262

(5) Round to the required significant figure: 0.368

(6), round to the needed significant figure: 0.00257

The most significant number in the number is rounded up. Check the first non-zero digit if you want to round to one significant figure while doing so. If rounding to two significant numbers, have a look at the digit that comes after the first non-zero digit.

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Step-by-step explanation:

the first number as percentage of the second number.

that means the second number is 100%

100% = 35,700

1% = 100%/100 = 35,700/100 = 357

how many % are 42,200 ?

we find out by checking how often 1% fits in :

42,200/357 = 118.2072829...%

$42,200 is 118.2072829...% of $35,700

Answer:

you just gotta add up what carissahas and subtract what Brooke has and you'll have the answer

Step-by-step explanation:

x = number of weeks

so, we need to see, what is the number of weeks it takes for both to have the same balance.

it takes both the same amount of weeks, of course.

so,

250 + 15x = 750 + 10x

15x = 500 + 10x

5x = 500

x = 100

it takes them 100 weeks to have the same amount of money in their accounts.

Answer:

She scored 12

therefor she did pass

Step-by-step explanation:

Answer:

13

Step-by-step explanation:

[tex] \sqrt{ {(8 - 3)}^{2} + {( - 4 - 8)}^{2} } [/tex]

[tex] \sqrt{ {5}^{2} + {( - 12)}^{2} } [/tex]

[tex] \sqrt{25 + 144} = \sqrt{169} = 13[/tex]