3. A test consists of 30 true/false questions. To pass the test a student must answer at least 18 questions correctly. If a student guesses on each question, what is the probability that the student will pass the test?

Answers

Answer 1

Answer: the answer would be15%

Step-by-step explanation:

Answer 2
61% percent he pass depending on how long he studied

Related Questions

y=2/5xt 10 the rate of change and y intercept

Answers

Answer:

Below

Step-by-step explanation:

Rate of change (aka the slope) = 2/5

Y Intercept = 10

what is the solution for w in the equation

w+1/2=1/4w+2

options

w=2
w=9/8
w=4
w=10/3​

Answers

Answer:

Subtract 1/2 from both sides of the equation.

w=1/4w+1 1/2

Multiply both sides by 4

4w=w+6

Subtract w from both sides

3w=6

Divide both sides by 3

w=2

Check answer

2+1/2=1/4(2)+2

2 1/2=2 1/2

Step-by-step explanation:

In a certain city, three newspapers A, B, and C are published. Suppose that 60% of the families in the city subscribe to newspaper A, 40% of the families subscribe to newspaper B, and 30% subscribe to newspaper C. Suppose also that 20% of the families subscribe to both A and B, 10% subscribe to both A and C, 20% subscribe to both B and C, and 5% subscribe to all three newspapers. (i) What percentage of the families in the city subscribe to at least one of the three newspapers? (ii)What percentage of the families in the city subscribe to exactly one newspaper?

Answers

Answer:

(i) = 85‬%

(ii) = 30%

Step-by-step explanation:

The question is a probability question.

We will need the following values:

P(A) = 60%

P(B) = 40%

P(C) = 30%

P(AnB) = 20%

p(AnC) = 10%

P(BnC) = 20%

P(AnBnC) = 5%

(i) To determine the percentage of the families in the city that subscribe to at least one of the three newspapers:

P(A) + P(B) + P(C) + P(AnBnC) - P(AnB) - p(AnC) - P(BnC)

= 60% + 40% + 30% + 5% - 20% - 10% - 20%

= 85‬%

(ii) To determine the percentage of the families in the city that subscribe to exactly one newspaper:

P(at least one paper) - p(AnB) - p(AnC) - P(BnC) -  P(AnBnC)

= 85‬% - 20% - 10% - 20% - 5%

= 30%

Kevin has 3 fewer leaves than sandy. Sandy has 3 leaves. How many leaves does Kevin have?

Answers

Answer:

0 leaves

Step-by-step explanation:

Answer:

tiene            0

Step-by-step explanation:

0 hojas  

What is the answer
Please help very urgent

Answers

Answer:

3

Step-by-step explanation:

The graph a linear function if passes through the point (3, -8) and has a slope of -2

Answers

Answer:

It's not 0 I got it wrong.

Step-by-step explanation:

Answer:

-2

Step-by-step explanation:

i just took the test

Simplify and show work

5x - (6 - x)

Answers

Answer:

6x-6

Step-by-step explanation:

5x-(6-x)

First you distribute the negative to (6-x) which makes -6+x, then you just subtract that from 5x which makes 5x-6+x then you just simplify into 6x-6.

Ways to regroup and rename the number 340,000

Answers

Answer:

decimal form, fraction form i think dont qoute me

The sum of the measures of the angles of a triangle is 180. The sum of the measures of the second and third angles is three times the measure of the first angle. The third angle is fifteen more than the second. Find the measures of the three angles.

using Systems of Linear Equations with Three Variables

Answers

Answer:

KJslDKSLADJKLJALKJDLKDLKAsdmjklLkLKLKSLKSLKSKLSJSSJLKJLAJDJLDKJDLSJDLSAJALDLKASJLAS

Step-by-step explanation:

There are 60 students in a speech contest. Yesterday, 2/3 of them gave their speeches. Today, 3/5 of the remaining students gave their speeches. How many students still haven't given their speeches?

Answers

Answer:

2\3x60=40

3\5x20=12

12+40=52

60-52=8

What is the image point of (-2, -3) after a translation right 2 units and up 4 units?

Answers

Answer:

The Answer is (0, 1)

Step-by-step explanation:

add 2 and 4 to the x and y

Answer:

(0, 1)

Step-by-step explanation:

2 units right -> -2 + 2 = 0

4 units up -> -3 + 4 = 1

7. Order the following integers from least to greatest: 0,5,18,100,22

Answers

Answer:

0, 5, 18, 22, 100

Step-by-step explanation:

Order the integers from least to greatest which means that the smallest number to the biggest number. Since the biggest number is 100 it goes at the end and 0 is the smallest number so it goes at the end. After that, all you have to do is find which numbers are bigger and smaller. So, the numbers should go in this order 0, 5, 18, 22, 100.

Hope This Helps :)

each morning max walks to school. at 8:20, he passes a stoplight that is 2 blocks from home. He reaches the town library at 8:24. At this point, he is 3 blocks from school and halfway there. If Max walks at the same pace all the way to school, at what time does he arrive at school?

Answers

Answer:

8:36

Step-by-step explanation:

If he is at his halfway point at 8:24 and it only took him 4 minutes to get one block in than it would take him 12 minutes to get 3 blocks in and if you add 12 more minutes to the time that he's at right now than he would arrive at 8:36.

Hope this helps. Give 412937691 the brainliest.

Rewrite as a piece wise function
y=I3x+4I + 4

Answers

Answer:

Look at image

Step-by-step explanation:

Write the absolute value as piecewise.

which of the above objects is moving the fastest?

A. A
B. B
C. All 3 objects are moving at the same speed
D. C​

Answers

Answer:

b is moving the fastest

Step-by-step explanation:

c looks like its closer and a looks like its faster but b has both so b is the fastest to get there

Answer:

the answer is A

Step-by-step explanation:

bc since object a has the line with the steepest positive slope object a is moving the fastest

Could anybody help with this question? My teacher didn’t give a review so I’m not sure what to do. Any help is appreciated!

Answers

Answer: 6

Step-by-step explanation: set the equations equal to each other then solve. plug that number into the equation for AB

Maria is preparing for a graduation party. She plans to invite 60 people and has budgeted $275 for the good. The caterer sells pans of past that serves 10 people for $55 and trays of sandwiches that serves 6 people for $22 each. How many pastas and how many sandwiches

Answers

Answer:

Pasta 550 dollars and sandwiches 132 dollars

Step-by-step explanation:

10*$55=$550

6*$22=$132

Answer:

pasta 550 sandwiches 132

Step-by-step explanation:

845001 rounded to nearest ten thousands

Answers

845,001 rounded to the nearest ten thousand is 845’000

THIS IS URGENT! PLZ HELP!

Answers

Answer:

73

Step-by-step explanation:

Answer:

73

Step-by-step explanation:

[tex]8^2[/tex] is 64. [tex](7-4)^2[/tex] is the same as [tex]3^2[/tex] which is 9. 64+9=73. Here, for [tex](7-4)^2[/tex] , we can evaluate the part inside the bracket first. And 7-4=3.

Need help with this one please show it step by step.
Thank you!

Answers

Answer:

which class you are plz say dude

decrease 5% by 2205​

Answers

Answer:

The answer is,2094.75

Step-by-step explanation:

Percentage decrease = 5% × 2,205

2,205 - Percentage decrease =

2,205 - (5% × 2,205) =

2,205 - 5% × 2,205 =

(1 - 5%) × 2,205 =

(100% - 5%) × 2,205 =

95% × 2,205 =

95 ÷ 100 × 2,205 =

95 × 2,205 ÷ 100 =

209,475 ÷ 100 =

2,094.75

Or to be simpler

You find 5% of 2,205 which is 110.25 then subtract it from 2205 which is 2,094.75 and that 5% of 2,205

45 2/3 + 30 1/2 + 12 3/4=?​

Answers

88.9166666667.................

−18x+21>−15 OR 20x−13≥27

Answers

Answer:

I dont know what is your question, but I solved this.

Step-by-step explanation:

-18x>-15-21

-18x>-36

x<2

20x>=27+13

20x>=40

x>2

Is the question inconsistent or conditional?

Answers

Answer:

it is inconsistent

Step-by-step explanation:

2x4–5x3+x2+3x+2 for: x=-5

Answers

Answer:

667

Step-by-step explanation:

2x^4–5x^3+x^2+3x+2

2(5)^4 -5(5)3+5^2+3*5+2

2*625 - 5*125+25+15+2

1250-625+25+15+2

625+42

667

the national debt is $22,000,000,000,000 and the population is 280,000,000. what is the amount of debt per person?

Answers

Answer:

78571.43 dollars

Step-by-step explanation:

brainliest appreciated

what did the ancestral puebloans do to make the growing need for housing ​

Answers

Answer: How did the Ancestral Puebloans adapt their housing to the building materials that were available in the arid Southwest? They built some houses of stone blocks against canyon walls and built freestanding villages of stone and adobe brick.

Step-by-step explanation:

8 is greater than or equal to x, and 3 is less than or equal to x

Answers

Answer:

x = (3,4,5,6,7,8)

Step-by-step explanation:

3 <= x <= 8

3x + 10+ 2x =50 isks

Answers

Answer:

x = 8

Step-by-step explanation:

3x + 10+ 2x =50

5x = 50 - 10

x = 40/5

x = 8

The value of x would be equal to 8.

We know that equation is an expression that shows the relationship between two or more numbers, variables, and a mathematical equation is a statement with two equal sides and an equal sign in between.

We are given the equation as;

3x + 10+ 2x =50

Now solve for x;

3x + 10+ 2x =50

Combine like terms;

5x = 50 - 10

x = 40/5

x = 8

The solution will be 8.

Learn more about equations here;

brainly.com/question/25180086

#SPJ6

QUADRATIC EQUATION – WORD PROBLEMS
Fatima got 16 marks more than Zahra in Math test. The product of their mark is 1380. Find their marks.

The answer 30 ,46
I just need the steps

Answers

Answer:

Fatima's points = 46

Zahra's points = 30

Step-by-step explanation:

Let's give names to the unknowns (the number of points each one got)

Fatima's points = y

Zahra's points = x

Now create the equations given by the info they provide:

"Fatima got 16 marks more than Zahra"

y = x + 16

"The product of their mark is 1380."

x * y = 1380

Now use the first equation as substitution for "y" in the second equation:

x * (x + 16) = 1380

reduce the expression:

x^2 + 16 x = 1380

x^2 + 16 x - 1380= 0

Solve using quadratic formula:

[tex]x=\frac{-16+/- \sqrt{16^2+4(1380)} }{2} \\x=\frac{-16+/- \sqrt{5776} }{2} \\x=-8+/- 38\\x = 30\,\,\,or\,\,\,x=-46[/tex]

we pick 30 since the scores from a test must be larger than zero.

Now we use the first equation to solve for the other variable;

y = 30 + 16 = 46

then x = 30 and y = 46

Other Questions
5 less than the product of 8 and 12.The expression is ___.The value of the expression is ___. What happened in the great fire that reflects the theme the rebuilding is possible after the faster if people join together If y varies directly as x and the constant variation is -2, which equation represents this relationship?please answer by 11:59 10-5-2020 What can be concluded about the line represented in the table? Check all that apply.The slope is 2.The slope is 1/2The y-intercept is -4.The y-intercept is 8.The points (-2,-5) and (8,0) are also on the line.The points (-5,-2) and (1,10) are also on the line Opportunity costs are _____.the costs related to the product that have to be paid regardless of the amount you sellthe costs that change depending on a company's performancethe costs resulting from a business owner's choice when selecting one thing over another and how it will impact the businessnone of the above A conclusion in science states whether or not a hypothesis is corrector not? William must have at least $250 this month. He has already earned $100, how much moreshould he earn this month? Use m to represent the amount of money he still needs to eam. A logical answer to the question "Cmo ests?" would be:O aOOcMucho gusto.Me llamo Jos.Muy bien, gracias.AN Why did Democrats begin to win back control of the South In need help the questions are 4. Hay_________conductora5. Hay___________ fotos6. Hay___________cuadernos.8. Hay___________chicas2. Hay___________hombreHurry pleaseeeee Susana y Pedro, es obvio que ustedes (tener) gripe. Para aliviar la tos, les recomiendo que (tomar) este jarabe por la maana y estas pastillas por la noche. No creo que (necesitar) quedarse en cama. Les recomiendo que (beber) mucho lquido y que (comer) muchas frutas y verduras. Estoy seguro de que en unos das (ir) a sentirse mejor. Jill says that 23/1000 can be written as 0.23. Which explains whether or not Jill is correct? A. Yes, Jill is correct. The fraction 23/1,000 is equivalent to 0.23. B. No, Jill is not correct. The fraction is equivalent to 0.023. The decimal 0.23 is equivalent to. C. No. Jill is not correct. The fraction is equivalent to 0.0023. The decimal is 0.23 is equivalent to 23/100. D. No, Jill is not correct. The fraction 23/1,000 is equivalent to 2.3. The decimal 0.23 is equivalent to 23/100. D. No, Jill is not correct. The fraction 23/1,000 is equivalent to 2.3. The decimal 0.23 is equivalent to 23/100. HELPMEPLEASE!why did american colonists attack the city of savannah in 1779?a.the colonists had promised to return land surrounding city to their american indian alliesb.capturing the city would force the british retreat south, where they would face the spanish militaryc.the city was the last british stronghold in colonies, and its capture would end the american revolutiond.controlling the major port city would prevent great britain from receiving supplies it needed for its military how were american indian cultures shaped by their enviroments before the arrival of europeans Regina charges c dollars per hour to babysit. If she increases her rate by 15%, which expression represents her new rate, in dollars per hour? c plus 0.15c plus 15c plus 0.15 cc plus 15 c Tickets Now contracts with the producer of Riverdance to sell tickets online. Tickets Now charges each customer a fee of $4 per ticket and receives $10 per ticket from the producer. Tickets Now does not take control of the ticket inventory. Average ticket price for the event is $150. How much revenue should Tickets Now recognize for each Riverdance ticket sold? Group of answer choices $14 because both the fee from the customer and the producer are earned $150 because the $140 is cost of goods sold paid to the Riverdance producer None of the above $186 because the $140 is cost of goods sold paid to the Riverdance producer $4 because the $10 from the producer is similar to a negative cost of goods sold Are closed-ended "yes/no," or open-ended questions generally more effective? E3-18 Comparing cash and accrual basis accounting and applying the revenue recognition principle Momentous Occasions is a photography business that shoots videos at college parties. The freshman class pays $1,000 in advance on March 3 to guarantee services for its party to be held on April 2. The sophomore class promises a minimum of $2,800 for filming its formal dance and actually pays cash of $4,100 on February 28 at the dance. Answer the following questions about the correct way to account for revenue under the accrual basis: a. Considering the $1,000 paid by the freshman class, on what date was revenue recognized? Diod the recognition occur on the same date cash was received? b. Considering the $4,100 paid by the sophomore class, on what date was revenue recognized'? Did the recognition occur on the same date cash was received? Is it fair to have one set of rules for one group of people and another set of rules for another group? Why or why not? 25 is what percent of 30? (don't forget the % sign and round your answer to the nearest hundredth)