Mathematics College

How do you do this question?

How Do You Do This Question?

Answers

Answer 1

Answer:

a. 42%

b. 16%

Step-by-step explanation:

a. According to the curve, the bottom 80% of families has about 58% of the income, so the top 20% has about 42%.

b. The bottom 60% of families have about 32% of the income, and the bottom 40% of families have about 16% of the income.  So the third quintile has about 32% − 16% = 16%.

Related Questions

I need help answering this

Answers

Answer:

True

Step-by-step explanation:

The angles <wax and <yau are vertical angles and has same measurement.

Assume the random variable x is normally distributed with mean μ = 80 and standard deviation σ = 4. Find the indicated probability.
P(x < 72) = _____ (round to four decimal places as needed).

Answers

Answer:

0.2278

Step-by-step explanation:

z = (x-μ)/σ,

where x is the raw score

μ is the population mean

σ is the population standard deviation

z => 72 - 80/4

= -2

Probability value from Z-Table:

P(x ≤ 72) = P(x = 72) => P(x < 72)

0.02275

Approximately =>0.2278

The probability of the calculated value is " 0.0227501", its calculation can be defined as follows:

Normal distribution calculation:

Mean [tex](\mu)= 80\\\\[/tex]

Standard Deviation [tex](\sigma)= 4[/tex]

Since we know that

[tex]\to Z_{\text{score}} =\frac{x-\mu}{\sigma} \\\\[/tex]

a)[tex]x = 72[/tex]

[tex]\to \frac{72-80}{4}=\frac{-8}{4}= -2[/tex]

so,

[tex]P(x < 72) = P(z < -2) =0.0227501[/tex]

PS: you have to refer z score table to find the final probabilities.

Find out more about the p-value here:

brainly.com/question/14723549

2(9n - 6) + 52 = 2(7n + 8)

Answers

Step-by-step explanation:

2×9n=18n

2×-6=-12

52-12+18n= 38 +18n

2×7n=14n

8×2=16

14n+16

38+18n=14n+16

subtract 14n from 14n and 18n

38+4n=16

subtract 38 from 38 and 16

4n=-22

divide each side by 4

n= -5.5

Answer:

Solution

=−6

Step-by-step explanation:

Question 1
7
Find the coordinates of the image of the point (3,1) when it is reflected across the line y = 6.
O (3,7)
O (3. - 1)
O (3, 11)
O (3.-5)

Answers

Answer: Chowder

Step-by-step explanation: Chowder is the answer for this question because the equation form of chowder will explain. If you do not understand the Chowder Equation Theorem, simply search it up and you will be provided with knowledge of what to do. (x, y + 6)

It’s 3,11

Peyton invested $690 in an account paying an interest rate of 5.6% compounded monthly. Assuming no deposits or withdrawals are made, how much money, to the nearest ten dollars, would be in the account after 8 years?

Answers

Answer:

$1,080.

Step-by-step explanation:

Given that Peyton invested $ 690 in an account with an annual interest of 5.6% compounded monthly, and that he kept said money in his account for 8 years without withdrawing or adding any amount, to obtain the final amount of money that said account would have after 8 years. years of investment, the following calculation must be made:

8 x 12 = 96

X = 690 x (1 + 0.56) 96

X = 1,078.85

Thus, after 8 years of investment, the amount that Peyton's account will have will be $ 1,078.85, that is, $1,080 rounded to the nearest ten dollars.

Answer:

$1,080.

Step-by-step explanation:

Given that Peyton invested $ 690 in an account with an annual interest of 5.6% compounded monthly, and that he kept said money in his account for 8 years without withdrawing or adding any amount, to obtain the final amount of money that said account would have after 8 years. years of investment, the following calculation must be made:

8 x 12 = 96

X = 690 x (1 + 0.56) 96

X = 1,078.85

Thus, after 8 years of investment, the amount that Peyton's account will have will be $ 1,078.85, that is, $1,080 rounded to the nearest ten dollars.

I need these answers quick please!! I will mark brainliest if they are correct! Hurry please (:

Answers

Okay I'll go as fast as I can!!

1.) 0.05

2.) -0.007

3.) 0.028

4.) 0.125

5.) 2.333

6.) 0.272

7.) -0.6

8.) 0.086

9.) 0.642

10.) 0.296

11.) 0.068

12.) 0.814

13.) 2.08

14.) 3

15.) 0.093

16.) -0.185

I am so sorry! I dont know what 17 and 18 are. I feel bad but I hope you can figuar it out!

How do I find matrices

Answers

Multiply a by the determinant of the 2×2 matrix that is not in a's row or column.
Likewise for b, and for c.
Sum them up, but remember the minus in front of the b.

16 ÷ 47 = ?
47 ÷ 9 = ?
47 ÷ 7 = ?
47 ÷ 5 = ?
47 ÷ 3 = ?
47 ÷ 2 = ?

Answers

#1: 0.3404255319

#2: 5.2 repeat

#3: 6.714285714

#4: 9.4

#5: 15.6 repeat

#6: 23.5 repeat

I am not 1,000 percent sure that this is right. If it is not then please tell me! Hope this helped if it was correct!

Which is the upper left quadrant on the coordinate plane?

A coordinate plane.

Quadrant I
Quadrant II
Quadrant III
Quadrant IV

Answers

Answer:

the upper left Quadrant is Quadrant II

Answer:

its Quadrant IV

Step-its Quadrant by-step explanation:

Sry it look like that but anyways please hurry

Answers

Answer:

1. subtract by 12 on both sides

2. Divide both sides by -8

Step-by-step explanation:

What is the missing length in the right triangle?

Answers

Answer:

I would assume that s is also 5 because its an isosceles triangle. This leaves the hypotenuse side, which would be 7.07. To find a missing side when you have two sides, you can use the Pythagorean theorem, which is [tex]a^{2} +b^{2} = c^{2}[/tex]. The longest side will always represent c, so when you plug in a and b squared, you will get 50 in total. To get c by itself, you just need to square root it. I hope that made sense!

284 + 0 = 284 is an example of which property

Answers

Answer:

Addition propriety

Step-by-step explanation:

Answer:

thats wrong

Step-by-step explanation:

thats not right

The product of a number and -5 is equal to twice the number subtracted from 9. What is the number?

Answers

Answer:

4.5

Step-by-step explanation:

i think that is the answer

Janie ordered 12 packs of glitter. There were 25 packs of glitter in each pack. How many packs of glitter did Janie order?

Answers

Answer: 300

Step-by-step explanation: 25 multipled by 12 is 300

Answer: I think its 300

Step-by-step explanation: Because if you multiply 12 by 25 you would get 300.

A cake recipe calls for 3/4 cup of flour for every 1/3 teaspoon of baking powder. What is the unit rate of cups per teaspoon?

Answers

Answer:

i just looked it up and i saw 57 so i think thats it

Step-by-step explanation:

Answer:

9/4

Step-by-step explanation:

PLEASE HELP ME
A pyramid has a row of 100 blocks in the first row, 96 blocks in the
second row, and 92 blocks in the third row. (A) Write an explicit rule to
model the number of blocks in the nth row of the pyramid. (B) Use the rule
to find how many blocks are in the 17th row.

Answers

Answer:

3196

Step-by-step explanation:

A. You Add all the blocks.

B. Then you multiply 17 x your answer then you get your answer.

Molly puts her money into a savings account that earns 6% per year. The
initial amount of money that she deposited into the bank was $3000. How
much money will she have in 5 years? *
O $5000
O $4000
O $4014.68
O $31,457

Answers

Answer:

c

Step-by-step explanation:

Answer:

It's C.

Step-by-step explanation:

At an amusement park, 15 riders ride the race cars every 20 minutes and 35 riders ride the ferris wheel every 60 minutes. Which ride has the greater ratio of riders?

Answers

Answer: the Ferris Wheel

Step-by-step explanation:

How would you describe the correlation in the data? Explain your reasoning. (2 points).

Answers

Answer:

How would you describe the correlation in the data? Explain your reasoning. (2 points)

Step-by-step explanation:

Between x=2 and x=3, which function has the largest average rate of change?

Answers

Answer:

I believe it would be C

Step-by-step explanation:

3 If the perimeter and sum of two sides of triangle are 24 em and 17 cm then calculate the length
of third side 2]​

Answers

Answer:

answer is 42 cm

Step-by-step explanation:

explained

you are driving at a constant speed of 75 mph. how far will you drive in 4 hrs

Answers

Answer:

300miles

Step-by-step explanation:

If you are driving 75 miles per hour, and you need to know how many miles you will have drive in 4 hours. Multiply 4 by 75 to get 300.

75mi       4 hr

____ x___  = 75mi x 4  = 300miles

1 hr        y

What is the exact value of sin(105°)?

Answers

Answer:

0.9659258263

0.9659 when rounded to two decimals

0.966 when rounded to three decimals

0.97 when rounded to two decimals

Step-by-step explanation:

Answer:

305

Step-by-step explanation:

  105°

+ 200°

  305°

want free HEREeeeeeeeeeeeeeeeee

Answers

Answer:

thanks

Step-by-step explanation:

Answer:

thanks

Step-by-step explanation:

a bank is offering 2.5%simple interest in a saving account. if you deposit 5000, how much interest would you earn in one year

Answers

Answer:

$125

Step-by-step explanation:

.025(5000)= 125

Find the slope of the line that passes through each pair or poin

Answers

Answer:

The slope is 1/5

Step-by-step explanation:

Which of the following is an example of an independent variable?
A. graph
B. output
C. input
D. rule

Answers

Answer:

C is an independent variable

Step-by-step explanation:

The input is the number you feed into the expression

WRONG ANSWERS ONLY, who is this anime character? You must actually answer the question though.

Answers

Answer:

I think it may be Naruto

Step-by-step explanation:

The lifetime of a computer can be modeled by an exponential random variable with an expected lifetime of 900 days. 1. Find the probability that the computer will function for more than 2000 days.2. Find the probability that the computer will function for more than 2000 days, given that it’s still working after 500 days.

Answers

Answer:

1.  0.108368

2. 0.188876

Step-by-step explanation:

Let X be the exponential random variable that represents the lifetime of a computer.

i.e. [tex]X\sim Exp(0.001)[/tex]

The probability that the computer will function more than 2000 days can be computed as follows:

P(X > 2000)

: [tex]f_X(x) = \lambda e^{-\lambda x[/tex]

P(X > 2000) = 1  - P(X< 2000)

P(X > 2000) = exp(-2000/β) = e⁻²²

P(X > 2000) = 0.108368

2.

By applying conditional probability;

[tex]P(X>2000 \bigg | X>500) =\dfrac{P(X>2000 \ \cap \ X>500)}{P(X> 500)}[/tex]

[tex]P(X>2000 \bigg | X>500) =\dfrac{P(X>2000 )}{P(X> 500)}[/tex]

[tex]P(X>2000 \bigg | X>500) =\dfrac{0.108368 }{0.57375}[/tex]

[tex]\mathbf{P(X>2000 \bigg | X>500) =0.188876}[/tex]

A company orders 9 boxed lunches from a deli for $115.20. If each boxed lunch costs
the same amount, what is the unit cost of each boxed lunch?

Answers

Answer:

12.80

Step-by-step explanation:

115.20 divided by 9

Answer:

7 =7.45x

Step-by-step explanation:

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