Mathematics College

Find the 20th term in the following
arithmetic sequence :
12, 15, 18, 21, ..

Answers

Answer 1
So basically its arithmetic sequence cause u keep on adding 3
Rule: an=a1+(n-1)d
12+(20-1)(3)
Answer : 69

Related Questions

Help please and show the steps

Answers

9514 1404 393

Answer:

  4096∠0°

Step-by-step explanation:

The polar form of the base value is 2∠120°. Then the 12-th power is ...

  (2^12)∠(12×120°) = 4096∠0° . . . . or θ = 0 radians, as you wish

_____

I prefer the simpler notation r∠θ, rather than ...

  r(cos(θ) +i·sin(θ))   or   r·cis(θ)   or   r·e^(iθ)

You might not see this notation very often in areas outside of electrical engineering.

which if the following equations fit this graph?​

Answers

y=3/2


That it I think so

Is Anyone know the answer????

Answers

Answer:

Angle 1 = 40

Step-by-step explanation:

Angle 1 and Angle 2 are alternate angles. So,

2x + 20 = 3x + 10

3x - 2x = 20 - 10

x = 10

Angle 1 = 2x + 20 = 2 x 10 + 20 = 40

The sum of two numbers is -25. One number is 101 less than the other. Find the numbers

Answers

Answer:

-63, 38

Step-by-step explanation:

1st number = x

2nd number = x+101

x+x+101=-25

2x=-126

x=-63

1st number = x = -63

2nd number = x+101 = 38

Answer:

x=38

y= -63

Step-by-step explanation:

x+y=-25

y=x-101

x+(x-101)= -25

2x=-25+101

2x=76

x=76/2

x=38

y=x-101

y=38-101

y= -63

help? please witt these 2

Answers

Answer:

C: x=6 D: x=2

Step-by-step explanation:

Hope this helps

how many square feet is in a acre

Answers

43,560 is the answer
43560 square feet in an acre

ZABC and ZQRS are supplementary angles,
If the measure of ZABC = 100°, what is the
measure of ZQRS?
mZQRS = [?]°

Answers

Answer:

Solution given:

<ABC+<QRS=180°[supplementary]

<QRS=180°-100°

<QRS=80° is your answer

Help plz I will give brainliest

Answers

B 4cup of sugar and 3cups of flour =1cup of sugar and 3/4 cup of flower

Rewrite the sum of 12 + 27 using the GCF and the distributive property I​

Answers

12345678991112131415161718

Answer choices
50%
60%
65%
If you put a link I will report

Answers

Answer:

50%

Step-by-step explanation:

Can you help me answer this question???????

Answers

3^10/ 3^-2
3^12
good luckkkk

Answer:

3^12

Step-by-step explanation:

PLEASE HELP!!! ILL GIVE BRAINLIEST !! Which is the correct answer ?

Answers

Answer:

vertical angles

Step-by-step explanation:

bc they are across from eachother

A family buys 6 airline tickets online. The family buys travel insurance that costs ​$18 per ticket. The total cost is ​$1,056. Let x represent the price of one ticket. Write an equation for the total cost. Then find the price of one ticket.

Answers

Answer:

let x represent the number tickets

number of ticket=6

cost of the travelling insurance per ticket =$18

total cost= $1056

(x+x+x+x+x+x+18)= $1,056

6x + 18 = $1,056

{201-[68-(40/4)+(-8)+(70x2)]}

Answers

Answer:

{201-[68-(40/4)+(-8)+(70x2)]}

{201-[68-(40/4)+(-8)+140]}

{201-[68-10-8+140]}

{201-[68-18+140]}

[201-[50+140]}

{201-190}

11is your answer

A rectangular prism has a length of 11 centimeters, a height of 18 centimeters, and a width of 11 centimeters. What is its volume, in cubic centimeters?

Answers

Answer:

2,178

Step-by-step explanation:

Multiply all the numbers together in other words do the length of the base times the width of the base then multiply the product by the height of the prism.

(11)(11)18

edward deposited $6,000 into a savings account 4 years ago. the simple interest rate is 3% how much money did edward earn in interest?
(SHOW FULL WORK FOR BRAINLIEST) PLEASE HELP

Answers

Answer:

$6000×3%=180 for a month

so for for years

=6000x48×3%=R8 640

Step-by-step explanation:

1 year has 12 month so you will say 4 year's × 12 Month's it will give you 48 so you Multiply by his deposited money ×Percent

formula=Deposit money×Year's×Percent

what is the median of 16, 18, 18, 19, 25, 27, 28, 31, 31, and 32.

Answers

Answer:

26

Step-by-step explanation:

If the data is in order, the median is the middle value.

If there are two values in the middle, you add them together and divide by 2

So [tex]\frac{25+27}{2} =26[/tex]

26 because in between 25 and 27 is 26 any other numbers that’s missing is because it’s not the median

A boat is 1000 meters from the base of a cliff. If the angle of depression from the top of the cliff to the boat is 15 degrees, how tall is the cliff? Round your answer to the nearest tenth

Answers

9514 1404 393

Answer:

  267.9 m

Step-by-step explanation:

The relevant trig relation is ...

  Tan = Opposite/Adjacent

In this geometry, the angle of depression is the angle of interest. The "adjacent" side of the triangle is the distance to the boat. The "opposite" side is the height of the cliff.

  tan(15°) = height/(1000 m)

  height = (1000 m)tan(15°)

  height ≈ 267.9 m

The cliff is about 267.9 meters tall.

Which student evaluated the power correctly?
Aida’s Work
5 Superscript 4 = 5 times 5 times 5 times 5 = 625
Hector’s Work
5 Superscript 4 = 5 times 4 = 20
Camila’s Work
5 Superscript 4 = 5 + 5 + 5 + 5 = 20
Juan’s Work
5 Superscript 4 = 5 times 5 times 5 = 125

Answers

Aida’s work because 5 to the 4th power is 5x5x5x5=625

Answer:

A.

✔ Aida’s Work

Step-by-step explanation:

E 2021

PLEASE HELP! 20 POINTS!!

Answers

Answer:

15

Step-by-step explanation:

In this problem we need to use the numbers given. So in the problem it states that k = 20 and v = 10. We can replace the letters in the equation for the numbers that it equals so the equation can make sense so 25 - 20 + 10 because k is 20 and v is 10 I simply just replaced the letters with the numbers given in the problem. Then we can just subtract 25 - 20 which is 5 and add 10 which leaves you at a final answer of 15. Hope this helped!

1. (20 points) One step in the manufacture of a certain metal clamp involves the drilling of four holes. In a sample of 150 clamps, the average time needed to complete this step was 72 seconds and standard deviation was 10 seconds. (a) Find a 99.5% confidence interval for the mean time needed to complete the step. (b) What is the confidence level of the interval (71, 73)? (c) How many clamps must be sampled so that 99.5% confidence interval specifies the mean to within ±1.5 seconds? (d) Can you conclude that the mean time needed to complete the step is greater than 73 seconds? i. State hypothesis. ii. Compute P-value. iii. What is your conclusion?

Answers

Answer:

(69.708 ; 74.292) ; 78% ; 350 ;

H0 : μ = 72

H0 : μ > 72

Pvalue = 0.8897

there is not enough evidence to support the claim that the mean time needed to complete the step is greater than 73.

Step-by-step explanation:

99.5% confidence level, = 2.807

Sample size, n = 150

xbar = 72

Standard deviation, s = 10

Xbar ± Margin of error

Margin of Error = Zcritical * s/sqrt(n)

Margin of Error = 2.807 * 10/sqrt(150)

Margin of Error = 2.292

Lower boundary = 72 - 2.292 = 69.708

Upper boundary = 72 + 2.292 = 74.292

(69.708 ; 74.292)

B.)

Confidence level of the interval (71, 73)

(72 - 71 ) or (73 - 72)

Margin of Error = 1

Margin of Error = Zcritical * s/sqrt(n)

1 = Zcritical * 10/sqrt(150)

1 = Zcritical * 0.8164965

Zcritical = 1 / 0.8164965

Zcritical = 1.2247

α = 0.22 = 1 - 0.22 = 0.78 = 78%

C.)

Margin of Error = ±1.5

1.5 = Zcritical * s/sqrt(n)

99.5% confidence level, = 2.807

1.5 = 2.807 * 10/sqrt(n)

1.5 = 28.07 / sqrt(n)

Square both sides

1.5² = 28.08² / n

2.25n = 788.4864

n = 788.4864 / 2.25

n = 350.4384

n = 350 samples

D.)

H0 : μ = 72

H0 : μ > 72

Test statistic :

(xbar - μ) ÷ s/sqrt(n)

(73 - 72) ÷ 10/sqrt(150)

Test statistic = 1.2247

Pvalue :

P(Z < 1.2247) = 0.8897

Pvalue > α

0.8897 > 0.005

We fail to reject the Null ; Hence there is not enough evidence to support the claim that the mean time needed to complete the step is greater than 73.

Solve the following inequality for z. Write your answer in simplest form.
3z – 4 > 8z + 2

Answers

Answer:

I think question is wrong

Step-by-step explanation:

3z-4>8z+2

3z-4+4>8z+2+4

3z>8z+6

[tex] \frac{3}{3} z > \frac{8z + 6}{3} \\ z > 8z + 2[/tex]

For every 9 pounds of blueberries that Joey picks, she
is able to bake 6 blueberry pies. How many pounds of
blueberries does Joey use in each pie?

Answers

1.5 pounds of blueberry in each pie

Explanation:
So its basically asking for the unit rate of blueberry per pie.
To solve that, we divide 9 by 6
9 divided by 6 is 1.5, which will mean that there are 1.5 pounds of blueberries in one pie.

Now, DONT do it the other way around (6 divided by 9) BECAUSE, if you do that, you will end up solving the pie per blueberry (which in that case is, ur gonna find how many pie you can make for 1 blueberry) so uhh therr ya go. Hope this helps
Marm me brainliest pls-


Identify the y-intercept in y=-1/3x + 2

Hint: y = mx + b

1. -1/3

2. 2

3. -2/3

4. -2

Answers

Answer:

2

Step-by-step explanation:

y = mx + b

    m = slope

    b = y-intercept

y = -1/3x + 2

    b = 2

Answer:

since negative 1/3 is the slope and x is the point on the x axis , 2 is the y intercept

Please help it’s due by the end of tonight and I’m not sure what to do if you can’t see (sorry I took a picture of my computer it’s a bit Glitched) you can zoom in

Answers

Do not click that link it’s a hacker please

A total of 255 tickets were sold for the school play. They were either adult tickets or student tickets. The number of student tickets sold was two times the number of adult tickets sold. How many adult tickets were sold? answer ASAP will give brainliest!!!

Answers

Answer:

85

Step-by-step explanation:

255 ÷ 3 = 85

85×2= 170 This is how much student tickets were sold.

255 - 170= 85

85 adult tickets were sold.


2. The angles of a pentagon are 6x, (2x + 20°),(3x - 20%), 2x and 14x. Find x. Please answer please please ​

Answers

Answer:

x=20

Step-by-step explanation:

Excuse me brainly, May i have your help..? I will give you the brainiest!

Determine the equation for the line of best fit to represent the data.

scatter plot with points going down from about zero comma 4 to the right to about 7 comma zero

y equals two thirds times x plus 4
y equals negative two thirds times x plus 4
y equals negative three halves times x plus 4
y equals negative two thirds times x minus 4

Answers

I think the answer would be negative Y equals 4 and the reason why is because

One of the legs of a right triangle measures 6 cm and the other leg measures 17 cm.
Find the measure of the hypotenuse. If necessary, round to the nearest tenth.

Answers

Answer:

18.0 cm

Step-by-step explanation:

[tex]hyp^{2} = opp^{2} + adj^{2}[/tex]

[tex]hyp^{2} = 6^{2} + 17^{2}[/tex]

[tex]hyp^{2} = 325[/tex]

[tex]hyp = 5\sqrt{13}[/tex]

[tex]= 18.028 cm[/tex]

6^2 + 17^2 = 325
Square root of 325 rounded is 18
Please give me Brainliest


In the school chorus,
5
20
of the students are fourth graders.

In simplest form, what fraction of the students in the school chorus are fourth graders?

Answers

Answer: 1/6

Step-by-step explanation:

Other Questions
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According to the text, population sizea)and employment rates are sufficient for estimating consumption of low-priced, mass-consumption products such as soap and economy automobiles.b)and GNI/capita are necessary for estimating consumption of low-priced, mass-consumption products such as soap and soft drinks.c)provides a basis for estimating consumption of low-priced, mass-consumption products, such as cigarettes and soap.d)alone is insufficient for estimating consumption of any product.5.According to the text, the market analyst may determine a country is not a good market by making a simple calculation based on:GNI/capita, population by province, and the number of pharmacies.GNI/capita, total population, and the size of the hidden economy.Pet sales, number of CD players, and per-capita lint production.GDP, total population, and income distribution.6.Because of the importance of economic information to the control and planning functions at headquarters the collection of data and preparation of reports is usually the responsibility of:a)government economists.b)the home office.c)economic consultants.d)economists in the subsidiaries where changes are occurring.7.Even though a nation's GNI is small, if a small percentage of its population receives a large percentage of that income:a)it may be a good market for high-volume, low-priced consumer products.b)B and C.c)it may be a good market for low-volume, high-priced luxury products.d)it may be a good market for high-priced industrial products.8.Examples of socioeconomic data are:a) total population, population density, and population distribution.b) GNI/capita, total population, and population distribution.c) total population, income distribution, and population density.d) GNI, GNI/capita, income distribution.9.From comparisons of income distribution studies over time, it appears that in early stages of development:a)the middle quintile grows at the expense of the upper and lower quintiles.b)income inequality stays the same.c)the upper and lower quintiles grow at the expense of the middle quintile.d)income inequality decreases.10.Generally, because of higher birth and fertility rates, developing countries have more _________ populations than industrial countries.a)healthyb)youthfulc)unhealthyd)mature11.Generally, we can assume that the higher the GNI/capita value:a)the lower the tax rate.b)the larger the population.c)the smaller the population.d)the more advanced the economy.12.GNI/capita, the first crude estimate of purchasing power, must be further refined by:a)an examination of the amount of income tax paid.b)determining the amount of discretionary income.c)a census to determine the total population.d)incorporating data on how the national income is actually distributed.13.Income distribution studies confirm the belief that, generally, income is more evenly distributed in the:a)developing nations.b)richer nations.c)newly industrialized nations.d)Pacific Rim nations.14.Japan is mentioned in the age distribution section because:a)none of the above.b)A, B and C.c)it is the fastest-graying nation in the industrial world.d)its social security funds may be depleted by this future wave of retireese)in the future it may have twice as many retirees as children.15.Reductions in birth rates are occurring worldwide because:a)governments are supporting family planning programs.b)A, B, and C.c)of a greater degree of urbanization.d)women are gaining an enhanced status.e)A and C. 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