Emily has six black marbles, ten clear marbles, and four blue marbles in a bag. If she picks one
at random, what is the probability that she will pick a black marble?

Answers

Answer 1

Answer:

3/10

Step-by-step explanation:


Related Questions

Can someone help I know it's easy. ( picture attached)

Answers

Answer:

B 125.6

Step-by-step explanation:

We can use the formula for the circumference to solve.

C=2[tex]\pi[/tex]r

C=2[tex]\pi[/tex](20)

C=(6.28)(20)

C=125.6

Payne saves $2,000 at a yearly simple interest rate of 2%. He earns $280 in interest. How many years did he save his money?

Answers

the answer if 7 years, if you multiply 2,000 by .02 it equals 40. so you divide 280 by 40 and get 7

**Help Needed**
The picture below is a sketch of a picnic area with a courtyard. How much of the courtyard is available for use?

Answers

Answer:

87 m²

Step-by-step explanation:

The picnic area is the white inner rectangle, while the courtyard is the outer pink rectangle.

The area of the courtyard available for use = area of the pink rectangle - area of the white rectangle

✔️Area of the courtyard (pink rectangle) = L*W

L = 13 m

W = 7 m

Area of pink rectangle = 13*7 = 91 m²

✔️Area of the picnic (white rectangle) = L*W

L = 4 m

W = 1 m

Area = 4*1 = 4 m²

✅Area available in the courtyard for use = 91 m² - 4 m² = 87 m²

Find a positive angle less than 360° that is coterminal with the given angle.
410°

Answers

Answer:

50°

Step-by-step explanation:

Subtract 360° from 410°

50° is positive, less than 360°, and is a coterminal of 410°

i believe thats 50°

A girl with a height of 5 ft casts a shadow of 2 ft. What would be the height of a building that casts a shadow 50 ft long at the same time?​

Answers

Answer:The person is 5feet, 6inches Note: 12 inches= 1 foot, so 6 inches= 1/2 a feet and 6 inches= .5 feet

Step-by-step explanation:

Complete the equation of the line whose y-intercept is (0, -1) and slope is 4.
(Khan academy)

Answers

Answer:

y = 4x - 1

Step-by-step explanation:

y = mx + b

Here m is slope and b is y-intercept

m = 4;  b = -1  

y = 4x - 1

(4y^4)^2 without exponents

Answers

Answer:

I don't understand but I believe the answer is 16y^8

Step-by-step explanation:

Answer: (4 x a x a x a x a) x (4 x a x a x a x a)

HOPE THIS HELPS

help please. will give Brainly.​

Answers

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

The filling in of the formula for the n-th term is pretty straightforward. The attachment shows how simple it is.

The 7th term is found by evaluating the expression for n=7.

  a₇ = 192

solve the rational equation 8-6/x=5+12/x

Answers

I’m not really a math person but I got
x=6

x=6 is the answer to 8-6/x=5+12/x

The sum of two angle measures is 73.80. One angle has a measure of 44.25. What is X, the measure of the second angle in degrees​

Answers

Step-by-step explanation:

X1 + X2 = 73.80

Assumption : X1 = 44.25

X2 = unknown angle = 29.55

The diagram shows a convex polygon what is the value of s please help me

Answers

The value is 25 sksgsjsksksjgdjwlapajshebiswk

Solve for x and show work!

Answers

Answer: x=8

Step-by-step explanation:

We know that it is a square, so the diagonals divide the four triangles evenly.

A whole circle will have 360°. When it is divides into 4, each angle will be

360/4=90°

The vertex of each triangle will be 90°

And the given vertex equation is 8x+26

8x+26=90

8x+26-26=90-26

8x=64

x=8

Hope this helps!! :)

Please let me know if you have any questions


I don’t know how to solve the question so can you explain how you did it so I don’t have to come back on this app.

Answers

The answer is 16.

—Explanation—
•] You can calculate how much you save by simply moving the period in 10.00 percent two spaces to the left, and then multiply the result by $16 as follows: $16 x .10 = $1.60 savings.
•] you get the final price by simply deducting .10 from 1 and multiplying it by $16 as follows: (1 - .10) x $16 = $14.40 final price.

What is the circumference of the circle below? Use 3.14 for π.

Answers

Answer:

78.5

Step-by-step explanation:

.....ur welcome.........

3.14×5²

Answer:

C. 31.4

Step-by-step explanation:

To find circumference, you need to use πd. Or just pi times whatever the circumference is. Hope this helped you!!!

wedding planner does some research and finds that approximately 3.5% of the people in the area where a large wedding is to be held are pollotarian. Treat the 300 guests expected at the wedding as a simple random sample from the local population of about 2,000,000. 18) Suppose the wedding planner assumes that 5% of the guests will be pollotarian so she orders 15 pollotarian meals. What is the approximate probability that more than 5% of the guests are pollotarian and therefore she will not have enough pollotarian meals

Answers

Answer:

0.0793 = 7.93% probability that more than 5% of the guests are pollotarian and therefore she will not have enough pollotarian meals

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean [tex]\mu = p[/tex] and standard deviation [tex]s = \sqrt{\frac{p(1-p)}{n}}[/tex]

3.5% of the people in the area where a large wedding is to be held are pollotarian.

This means that [tex]p = 0.035[/tex]

300 guests

This means that [tex]n = 300[/tex]

Mean and standard deviation:

[tex]\mu = p = 0.035[/tex]

[tex]s = \sqrt{\frac{p(1-p)}{n}} = \sqrt{\frac{0.035*0.965}{300}} = 0.0106[/tex]

What is the approximate probability that more than 5% of the guests are pollotarian and therefore she will not have enough pollotarian meals?

This is 1 subtracted by the pvalue of Z when X = 0.05. So

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

By the Central Limit Theorem

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]Z = \frac{0.05 - 0.035}{0.0106}[/tex]

[tex]Z = 1.41[/tex]

[tex]Z = 1.41[/tex] has a pvalue of 0.9207

1 - 0.9207 = 0.0793

0.0793 = 7.93% probability that more than 5% of the guests are pollotarian and therefore she will not have enough pollotarian meals

Answer:7.93%

Step-by-step explanation:

12/23 plus -11/23 e eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Answers

Answer:

1/23

Step-by-step explanation:

This honestly super easy, but here it is!

12/23+(-11/23)

With no negatives, it would be 12/23+11/23 and the answer would be 23/23 AKA 1, because 12+11=23.

With negatives though, you always have to subtract the number itself from the positive number if the number is negative. Here we will subtract 11 from 12, which brings us to 1/23.

Hope this helped!

I wouldn't mind a 5-star rating, a thanks, or even a Brainliest :D

-ChocoChocoCho

the cooler at a softball game holds 5 quarts of sports drink. how many cups of sports drink does the cooler hold

Answers

Answer: 20 cups :DD

Step-by-step explanation:

Can some help with this and maybe explain​

Answers

Answer:

Step-by-step explanation:

81 = m/9

Divide both sides by 9

9 = m

h ÷ 3 = 12

h = 12/3 = 4

In this way you have to solve the other questions

10. A tractor costs $13,650 and depreciates in value by 14% per year. How much will the tractor be worth after
10 years?
a $2,597.86 b. $13,510.00 c. $3,020.77 d. $50,603.57

Answers

The answer is B!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Type the correct answer in each box. Use numerals instead of words.
Consider function h.
What are the values of the function when x= 0 and when x=4
h(0)=
h(4)=

Answers

Answer:

10 16

Step-by-step explanation:

when x= 0 h(x)=2x²-3x+10

⇒ h(0)=2*0²-3*0+10=10

when x= 4 h(x)=[tex]2^{x}[/tex]

⇒ h(4)=[tex]2^{4}[/tex]=16

The value of the given piecewise function at [tex]x=0[/tex] is [tex]h(0)=10[/tex] and the value of the function at [tex]x=4[/tex] is [tex]h(4)=16[/tex].

Important information:

The given piecewise function is:

         [tex]h(x)=\begin{cases}3x-4, &x < 0 \\ 2x^2-3x+10, &0\leq x < 4 \\ 2^x, & x\geq 4\end{cases}[/tex]

Piecewise Function:

The function for [tex]x=0[/tex] is [tex]h(x)=2x^2-3x+10[/tex].

[tex]h(0)=2(0)^2-3(0)+10[/tex]

[tex]h(0)=10[/tex]

The function for [tex]x=4[/tex] is [tex]h(x)=2^x[/tex].

[tex]h(4)=2^4[/tex]

[tex]h(4)=16[/tex]

Therefore, the required values of the piecewise function are [tex]h(0)=10[/tex] and [tex]h(4)=16[/tex].

Find out more about 'Piecewise Function' here:

https://brainly.com/question/17966003

Find the value of x for ABCD is a parallelogram

Answers

Find parallelogram ABCD attached

Answer:

x = 3

Step-by-step explanation:

In parallelograms, the diagonals typically divide each other into 2 equal parts.

This means that from the attached parallelogram, we can say that;

4x - 6 = 2x or 6x - 15 = x

Thus;

4x - 2x = 6

2x = 6

x = 6/2

x = 3

Let's confirm with the second equation;

6x - x = 15

5x = 15

x = 15/5

x = 3

Find g(-6) when g(x)
= x+3/x-1

Answers

Answer: The answer would be 3/7.

Step-by-step explanation:

I need this for math thanks

Answers

I’ll answer, but wait, do I send a picture of my work? or not? It says I have to make a table of values, so

i don’t know i’m sorry man

What is the value of x?
Enter your answer in the box.

Answers

Answer:

We say that a function is increasing on an interval if the function values increase as the input values increase ...

Step-by-step explanation:

An element with a mass of 700 grams decays by 6.1% per minute. To
the nearest tenth of a minute, how long will it be until there are 220
grams of the element remaining?

Answers

Answer

m =18.4 minutes

Step-by-step explanation:

220 = 700 x  (0.939)^m

220/700 = (0.939)^m

m = Log(220/700) / Log(0.939)

m =18.4 minutes

Answer: the answer would be 18.4 minutes

Step-by-step explanation:

Solve for pizza in the pie chart!

Answers

Answer:

24

Step-by-step explanation:

30% of the pie chart is pizza. 30% of 80 = 0.3 * 80 = 24

Answer:

The answer is 24 students

Step-by-step explanation:

The pizza section of the pie chart is 30% and the total amount of students is 80 so you just have to find 30% of 80. You find this by multiplying 80 times .3 . Then you will get 24.

Find the measures of the numbered angles in each kite. I need the answer as fast as possible!!!!!!

Answers

Answer:

1 = 20°

2 = 90°

3 = 70°

4 = 55°

Create an inequality to describe the possible values for the total area, A, in square feet of your green section.

Answers

The Area of triangle represented using inequality is A ≤  48.67 [tex]ft^{2}[/tex].

What is Area of triangle?

The area of a triangle is half the product of its base and height.

i.e., Area of triangle= [tex]\frac{1}{2} * b* h[/tex]

Given, b= 6.2 feet and h= 15.7 feet

Area of triangle= [tex]\frac{1}{2} * b* h[/tex]

                          = 0.5 x 6.2 x 15.7

                          = 48.67 [tex]ft^{2}[/tex]

The inequality will be: Area of triangle, A≤  48.67 [tex]ft^{2}[/tex]

learn more about Area of triangle here:

https://brainly.com/question/19305981?

#SPJ2

Juanita is a 28-year old female college graduate from the South. Molly is a 28-year female college graduate from the West. Jennifer is a 28-year female college graduate from the Midwest. (i) Construct a 95% confidence interval for the difference in expected earnings between Juanita and Molly. (ii) Explain how you would construct a 95% confidence interval for the difference in expected earnings between Juanita and Jennifer.

Answers

Answer:

Hello your question has some missing information attached below is the missing information

answer :

i) ( 0.158 , - 1.018 )

ii)  the difference in expected earnings can be computed as

( [tex]X_{6,A} - X_{5,C} ) = \beta _{0} + \beta _{6} - ( \beta _{0} - \beta _{5} ) = \beta _{6} - \beta _{5}[/tex]

Step-by-step explanation:

i) Construct a 95% confidence interval ( between Juanita and Molly )

Expected difference in earnings = ( X[tex]_{6}[/tex][tex]_{,A}[/tex] - X[tex]_{6.B}[/tex]) = [tex]\beta _{0}[/tex]= ( [tex]\beta + \beta _{6}[/tex] )

∴ 95% confidence interval

-0.43 ± 1.96 * 0.30 = [ -0.43 ± 0.588 ] =  ( 0.158 , - 1.018 )  ( hence confidence interval at 95% = 1.96 )

ii) Construct a 95% confidence interval ( between Juanita and Jennifer )

Juanita is a student from the south and Jennifer is a student from Midwest

therefore the difference in expected earnings can be computed as

( [tex]X_{6,A} - X_{5,C} ) = \beta _{0} + \beta _{6} - ( \beta _{0} - \beta _{5} ) = \beta _{6} - \beta _{5}[/tex]

therefore a 95% confidence interval can be calculated with the above regression model.

A part of an exponential function is graphed on the grid.
10
6
3
1
1
Which inequality best represents the domain of the part shown?
AX22
By 24.5
CX> 4.5
DY22

Answers

Answer:

x ≥ -2

Step-by-step explanation:

my teacher went over this with us

Other Questions
Solve the equation for x in florida, which of the following events require the boat operator to report, by the quickest means possible, a boating incident?The Division of Law Enforcement, Florida Fish and Wildlife Conservation Commission.The County Sheriff (where the accident occurred).The police department of the municipality where the accident occurred. Find the width (in m) of the river in the illustration. (Round your answer to three significant digits.)44 100 m True or Fale: Recital 32 and Article 10 (9) etablihed requirement that hall be addreed in a manufacturer Quality Management Sytem How did the Spanish American war lead to the U.S. becoming a world power? How painful is getting a tattoo? your system has a driver that is locked to manufacturer specifications. please try downloading the latest driver from the manufacturer's website to update. installer exit code: 1 What is SSS SAS AAS RHS? What is Carbon?Why do we care about carbon so much in science? Courtney would like to estimate the net worth of all people in the US. The distribution of net worth of people in theUS is strongly skewed to the right. Courtney selects an SRS of size n = 15 from this population and calculates thesample mean. What is the shape of the distribution of the sample mean for all possible simple random samples ofsize 15 from this population? Which account has the lowest minimum balance requirement? 10x56=4 Solution: x = A pilot was scheduled to depart at 4:00 p.m., but due to air traffic, her departure has been delayed by 16 minutes. air traffic control approved a new flight plan that will allow her to arrive four times faster than she calculated in her original flight plan. let x represent the time, in minutes, of her original flight. create an equation that can be used to predict the number of minutes after 4:00 p.m. she will arrive at her destination.a. y equals one fourth times x minus 16 b. y = 4x 16 c. y equals one fourth times x plus 16 d. y = 4x 16 wrate 10 as a fraction of 30 imprison someone for a decade for stealing 10 dollars. What ethic decision making principal does this constitutional clause MOST LIKELY reflect?answers:a:rightsb:virtuec: common goodd:fairness and justice A car owner decides to leave his car outside on a cold winter day. the next morning, the driver noticed ice on the windshield, a product of deposition. choose the best reason explaining this phenomenon. what happened? URGENT!! ILL GIVEBRAINLIEST!!!! AND 100POINTS!!! What is the effect of a quota? How did the Sherman Antitrust Act affect monopolies? Is f/x )= 3x a function?