Select all the pairs of operations that have inverse relationships.


Addition and subtraction


Addition and multiplication


Subtraction and division


Multiplication and division


Division and addition

Answer:

x - 4 > 28

Step-by-step explanation:

x - 4 > 28

a number minus 4 is greater than 28

Answer:

1. Say, for example, the traveler is from the U.S, he will need money to survive in Crosswater and he needs 50 CSW dollars. He will trade in $3 U.S dollars for $50 CSW dollars.

2. $100 U.S * $20 CSW = $2000 CSW

3. $100 U.S * $1 = $100 TPA

4. 100 TPA = $100 USD  1,000 CSW = $50 USD

5. It would be cheaper to buy from CSW. While TPA is more expensive in USD with $100, CSW is only $50 USD.

Step-by-step explanation:

Hey, make sure you pharaphrase this before you turn it in, these were my answers word for word...

To solve the problem we will convert currencies and then solve the Problems.

Given to us      

1.)   A traveler needs to visit a currency exchange to exchange his currency to the local currency of the country in which he is staying.

2.)  We know that 1 USD = 20 CSW,

therefore, 100 USD =  20 x 100 = 2000 CSW.

Thus,  your $100 will be equal to 2000 CSW dollars.

3.)   We know that 1 TPA =  1 USD,

therefore, 100 USD = 100 x 1 = 100 TPA

Thus,  your $100 will be equal to 100 TPA.

4.) We know that 1 USD = 1 TPA, while 1 USD = 20 CSW,

Given the cost of the computer part,

it will be 200 TPA = 200 USD,

it will be 1000 CSW = 50 USD,

Thus, the computer part will be cheaper, by 150 USD.

5.)  As it is given that 1 USD = 3 NRD,

while now that 1 USD cost 5 NRD, therefore, now the same product will be cheaper.

For, example a product costing 300 NRD would be 100 USD last year but would cost only 60 USD now.

Learn more about Currency Exchange:

https://brainly.com/question/13684639

Answer:

yes it is

Step-by-step explanation:

90,040/8 is 11222

Greetings! Hope this helps!

Answer

7 feet

Explanation

23-16=7

Have a good day!

_______________

A brainliest would help tons! :D

Answer:

The targeted population is USA residents who died of heart disease.

Step-by-step explanation:

According to this case, "the death rates due to heart disease among the smokers and nonsmokers are compared to see if smoking causes heart disease."  This implies that the study targets those USA residents who died of heart disease to find out if the cause of death can be traced to heart disease caused by smoking or not.  The main concentration for the study defines the targeted population.  It is this group of residents who died of heart disease that is the population of interest.  This means that the targeted population is a certain group of the population that share similar characteristics, especially death resulting from heart disease caused by smoking.

Answer:

Step-by-step explanation:

Example:

see attached for prefixes

Answer:

decimal point

Step-by-step explanation:

To convert a metric unit, you are going to either multiply or divide.

Some examples include:

Best of Luck!

Answer: 1.9

Step-by-step explanation:

After 109.45 hours the water reaches a depth of 7 meters

In mathematics, trigonometric functions are real functions that relate an angle of a right-angled triangle to ratios of two side lengths. The six trigonometric functions are Sine, Cosine, Tangent, Secant, Cosecant, and Cotangent.

Given here: y=3.7 Cos(pi(x)/6)+5  where y represents the water level measured in meters, and x represents the number of hours since high tide.

y=3.7 Cos(pi(x)/6)+5

7=3.7Cos (πx/6)+5

Cos (πx/6)= 2/3.7

πx/6=Cos⁻¹(2/3.7)

x= 6/3.14 ×Cos⁻¹(2/3.7)

x=109.45

Hence, after 109.45 hours the water reaches a depth of 7 meters

Learn more about trigonometric functions here:

https://brainly.com/question/6904750

#SPJ2

5) x = 8

6) z = 49°

Hi there !

5)

we have opposite angles =>

5x = 2x + 24

5x - 2x = 24

3x = 24

x = 24 : 3

x = 8

6)

The sum of the three interior angles in a triangle is always 180° !

x = 180° - (28° + 39°)

= 180° - 67°

= 113°

x ; y = supplementary angles =>

x + y = 180° =>

y = 180° - x

= 180° - 113°

= 67°

z = 180° - (64° + 67°)

= 180° - 131°

= 49°

Good luck !

Answer: -2/5

Step-by-step explanation: It's -4/5 multiplied by 1/2 because you you have to find the reciprocal, so you flip 2, so it would become 1/2, then you multiply -4/5 and 1/2, which would get you -4/10, which can be reduced to -2/5. Hope this helps!

Answer: B

Step-by-step explanation:

2+3x=62

3x=60

x=20

Hope this helps! Brainliest? :D

Answer:

0 must be correct answer

m is the midpoint of AB

A——4x-1———M——3x+3—-B

Find the values of

X=

AM=

MB=

AB=

Since this is like a line, we know it totals up to 180°.

A + (4x-1) + M + (3x+3) + B = 180

Simplify the two values with "x" in them

(7x+2) + A + M + B = 180

First, let's find x.

7x = 178-A-M-B

x = [tex]\frac{178-A-M-B}{7}[/tex]

Next, let's find AM.

A + M + B = 178-7x

A+M = 178-7x-B

[tex]A = (178-7x-B) - M \\ and \\M = (178-7x-B)-A[/tex]

multiply them together and get the answer then do the same for everything else.

sorry i cant help with everything.

Answer:

1. A/P=3000/500=6

2. e^i pi+1=0

Answer:

X=9

Step-by-step explanation:

3.5(7−x)+32=106−1.5(4x+18)

Step 1: Simplify both sides of the equation.

3.5(7−x)+32=106−1.5(4x+18)

(3.5)(7)+(3.5)(−x)+32=106+(−1.5)(4x)+(−1.5)(18)(Distribute)

24.5+−3.5x+32=106+−6x+−27

(−3.5x)+(24.5+32)=(−6x)+(106+−27)(Combine Like Terms)

−3.5x+56.5=−6x+79

−3.5x+56.5=−6x+79

Step 2: Add 6x to both sides.

−3.5x+56.5+6x=−6x+79+6x

2.5x+56.5=79

Step 3: Subtract 56.5 from both sides.

2.5x+56.5−56.5=79−56.5

2.5x=22.5

Step 4: Divide both sides by 2.5.

2.5x

2.5

=

22.5

2.5

x=9

Answer:

i think it maybe be x  = 9, i'm not sure though

If the sailboat covers 9000 meters in 30 minutes. Then the sailboat will travel 300 meters each minute. Then the correct option is B.

The distance covered by the particle or the body in an hour is called speed. It is a scalar quantity. It is the ratio of distance to time.

We know that the speed formula

[tex]\rm Speed = \dfrac{Distance}{Time}[/tex]

A sailboat traveled 9000 meters in 30 minutes.

Then the speed of the sailboat will be

[tex]\rm S = \dfrac{9000}{30}\\\\\S = 300 \ meters / minute[/tex]

Thus, the sailboat will travel 300 meters each minute.

More about the speed link is given below.

https://brainly.com/question/7359669

#SPJ2

Answer:80

Step-by-step explanation:

Answer:

15/18 pages per minute

Step-by-step explanation:

[tex]7 \frac{1}{2} = \frac{7 \times 2 + 1}{2} = \frac{14 + 1}{2} = \frac{15}{2} \\ \\ average \: reading \: rate \\ = \frac{ \frac{15}{2} }{9} \\ \\ = \frac{15}{2 \times 9} \\ \\ = \frac{15}{18} \: pages \: per \: minute[/tex]

Answer:

Step-by-step explanation:

Finding the line using the points:

The equation:

The slope is:

So the line is:

As per the graph the line is dotted and the shaded area is above the line,. so the inequality is:

Hope this help!!!

Have a nice day!!!

Answer:F

Step-by-step explanation:

Answer:

Left

Step-by-step explanation:

Answer:

5400/12= 450 paid

1006.56/2=503.28 interest

total is 5,903.28

total for paid 491.94 for months

Step-by-step explanation:

Answer:

150 mi

Step-by-step explanation:

60 mi × 2.5 hr = 150 mi

Answer:

150 miles

Step-by-step explanation:

60 mi/hr for 2.5 hours

60 x 2.5

The train traveled for 150 miles

Divide the cost for 4 nights by 4 to get cost per night.

260/4 = 65 per night.

Multiply cost per night by 7:

65 x 7 = 455

It would cost $455 for 7 nights.

Answer:

A) An 80% confidence interval for the population mean score of the current group of applicants is (172.8124,202.9876)

B)The confidence level of this interval is 96%

Step-by-step explanation:

Mean =[tex]\mu = 187.9[/tex]

Standard deviation = s= 32.4

n = 9

A) Find an 80% confidence interval for the population mean score of the current group of applicants.

Degree of freedom = n-1=9-1=8

Significance level = [tex]\alpha = 0.2[/tex]

So, [tex]t_(\frac{\alpha}{2},df)=t_(\frac{0.2}{2},8)=t_(0.1,8)=1.397[/tex]

Formula of confidence interval :

CI : [tex]\bar{x}-Z_{(\frac{\alpha}{2})} \times \frac{s}{\sqrt{n}} , \bar{x}+Z_{(\frac{\alpha}{2})}\times \frac{s}{\sqrt{n}}[/tex]

So, CI:  [tex]187.9-1.397 \times \frac{32.4}{\sqrt{9}} , 187.9+1.397 \times \frac{32.4}{\sqrt{9}}[/tex]

CI:(172.8124,202.9876)

So, an 80% confidence interval for the population mean score of the current group of applicants is (172.8124,202.9876)

B)Based on these sample results, a statistician found for the population mean a confidence interval extending from 165.8 to 210.0 points. Find the confidence level of this interval.

Standard error of sample mean = se =[tex]\frac{s}{\sqrt{n}}= \frac{32.4}{\sqrt{9}} = 10.8[/tex]

Margin of error = 210 - 165.8 = 44.2

Critical test statistic =[tex]\frac{\text{margin of error}}{2 \times \text{standard error}} = \frac{44.2}{2 \times 10.8} = 2.0463[/tex]

Using excel

Confidence interval = [tex]2 \times [1 - NORMSDIST(2.0463)] = 2 \times (1 - 0.98) = 2 \times 0.02 = 0.04[/tex]

Confidence level= 1 - 0.04 = 0.96

Confidence interval is 96%.

Hence  the confidence level of this interval is 96%

Using the z-distribution, it is found that

a) The 80% confidence interval for the population mean score of the current group of applicants is (174.1, 201.7).

b) The confidence level is of approximately 96%.

Item a:

We are given the standard deviation for the population, which is why the z-distribution is used to solve this question.

The information given is:

The confidence interval is:

[tex]\overline{x} \pm z\frac{\sigma}{\sqrt{n}}[/tex]

The critical value, using a z-distribution calculator, for a two-tailed 80% confidence interval is z = 1.28.

[tex]\overline{x} - z\frac{\sigma}{\sqrt{n}} = 187.9 - 1.28\frac{32.4}{\sqrt{9}} = 174.1[/tex]

[tex]\overline{x} + z\frac{\sigma}{\sqrt{n}} = 187.9 + 1.28\frac{32.4}{\sqrt{9}} = 201.7[/tex]

The 80% confidence interval for the population mean score of the current group of applicants is (174.1, 201.7).

Item b:

The margin of error is given by:

[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]

Hence:

[tex]\frac{210 - 165.8}{2} = z\frac{32.4}{\sqrt{9}}[/tex]

[tex]10.8z = 22.1[/tex]

[tex]z = \frac{22.1}{10.8}[/tex]

[tex]z = 2.05[/tex]

Using a calculator, it is found that the confidence level is of approximately 96%.

A similar problem is given at https://brainly.com/question/25649070

Answer:

your answer is -1

Step-by-step explanation:

D = distributive property

S = switch

C = combine

I = inverse operations

F = finalize

[tex]4(3x - 5) -2x = -30\\12x -20 -2x = -30\\12x -2x = -30 + 20\\10x = -10\\x = \frac{-10}{10}\\ x = -1[/tex]

Answer:

2.1 mpm

Explanation:

1ft = 0.3048 m

[tex]0.3048*7=2.1336[/tex]

The given speed in meters per second is 0.00356 m/sec.

Given that, an object is moving at a speed of 7 feet per minute.

We need to express this speed in meters per second.

Feet per minutes. In SI units [tex]5.08 \times 10^{-3}[/tex] meters per second.

Meters per second is the base unit for measuring velocity or speed in the International System of Units (SI). Speed is a measure of distance travelled over time, velocity is speed in a given direction. 1 meter travelled over a period of 1 second = 1 m/s.

For an approximate result, divide the speed value by 1969.

Now, 7/1969=0.003555

≈0.00356

Therefore, the given speed in meters per second is 0.00356 m/sec.

To learn more about the speed visit:

https://brainly.com/question/7359669.

#SPJ2

Answer:

18.88 more percent

Step-by-step explanation:

46.60-27.72 =18.88 meaning, it has 18.88 more percent than silicon

Answer:

Step-by-step explanation:

18.88 more percent

Answer:

12/2

Step-by-step explanation:

An integer is a whole number. All of the other possible answers are decimals and simplified fractions. 12/2 is a fraction, but can be simplified to a whole number, 6. 6 is an integer.