A true/false test has 20 questions on it. What is the probability that you get at least 18 right by purely guessing?

Answers

Answer 1

Answer:

I would say if your lucky 6/20 but if not 4/10


Related Questions

100 points! Please show your work :)

Answers

Answer:

7.76 minutes

Step-by-step explanation:

The +51 is regardless (being the y intercept) so it does not affect our answer. If the employee has to drive one mile (x=1) it will take 7.76 + 51 min to get there. If they have to drive 0 miles (x=0) it will only take 51 min. This is a difference of 7.76. You really just need to take the slope (I just used this example to make it make more sense) as x is the number of miles the employee has to drive, and therefore that times 7.76 would be how much longer it would take to drive to work.

write 1234 base 5 in powers of 5.​

Answers

Answer:

Step-by-step explanation:

613 = 4x125 + 113 = 4x53 + 113

Hence the first digit (reading left to right) is a 4.

The remainder is 113 so how many 25's are there in 113?

113/25 = 4 with a remainder of 13

Thus

613 = 4x125 + 4x25 + 13 = 4x53 + 4x52 + 13

Hence the second digit (reading left to right) is also a 4.

The remainder is 13 so how many 5's are there in 13?

13/5 = 2 with a remainder of 3

Thus

613 = 4x125 + 4x25 + 2x5 + 3 = 4x53 + 4x52 + 2x5 + 3

Hence the third digit (reading left to right) is a 2 and the units digit is 3. Therefore

613 written in base 5 is 4423

example

Có 2 chuông gà: chuồng 1 có 5 trống 10 mái ,chuồng 2 có 6 trống 14 mái. Có 1 con ở chuồng 2 nhảy sang chuồng 1 . từ chuồng 1 bắt ngẫu nhiên ra 2 con. Tính xác suất bắt được
a . 2 con trống

Answers

I need English to answer


Please help me I suck in math

Answers

Answer:

B) [tex]-4\sqrt{10}+13[/tex]

Step-by-step explanation:

[tex]\sqrt{100}+4\sqrt{10}+3-8\sqrt{10}[/tex]

[tex]10-4\sqrt{10}+3[/tex]

[tex]13-4\sqrt{10}[/tex]

[tex]-4\sqrt{10}+13[/tex]

There are 4 red balls and 6 black balls in a bag. Draw consecutively 3 balls with replacement. Find the probability when the first two balls drawn are black and the third ball drawn is red.​

Answers

Answer:

[tex]\frac{1}{3} *\frac{1}{2} =\frac{1}{6}[/tex]

Step-by-step explanation:

So the first two balls are black, so the way to change the path is to take two out of six black balls over two out of ten balls, which is 1/3.

If the last one is red then the probability is that if you take one of the four red balls and you take one of the eight balls, you get 1/2.

So the total probability is 1/3 times 1/2 is 1/6.

please please help with question 18

Answers

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

The Correct choice is :

[tex]y = \dfrac{3}{5} x + 2[/tex]

Explanation :

As per given in the question, both the lines are parallel so they have equal slopes. that is slope of required line is :

[tex] \dfrac{3}{5} [/tex]

now, let's use slope and the coordinates of the given points to find the equation of line in point - slope form :

[tex]y - y1 = m(x - x1)[/tex]

[tex](y - ( - 1)) = \dfrac{3}{5} (x - ( - 5))[/tex]

[tex]y + 1 = \dfrac{3}{5} (x + 5)[/tex]

[tex]5(y + 1) = 3(x + 5)[/tex]

[tex]5y + 5 = 3x + 15[/tex]

[tex]5y = 3x + 15 - 5[/tex]

[tex]5y = 3x + 10[/tex]

[tex]y = \dfrac{3x + 10}{5} [/tex]

[tex]y = \dfrac{3}{5} x + 2[/tex]

therefore , the correct choice is A

Please help-!! hurry​

Answers

Answer:

180

Step-by-step explanation:

Use the substitution method to solve the system.
2x + 8y = 4
x = -4y - 2

Answers

Answer:

no solution

Step-by-step explanation:

2x + 8y = 4

x = -4y - 2

Divide both sides of the first equation by 2.

x + 4y = 2

x = -4y - 2

Substitute -4y - 2 for x in the first equation.

-4y - 2 + 4y = 2

0 - 2 = 2

0 = 4

Since after doing legal steps, we get a false statement, 0 = 4, that means there is no solution.

Fill in the blanks please!!

Answers

Answer:

6,I can't help with the second one I wasn't good with that parallel lines

Step-by-step explanation:

Y2-Y1. So 3-9. 6

--------- - - -- = - - =6

X2-X1. 1-2. 1

right please no link or bot

Answers

Answer:

3^18

Step-by-step explanation:

Hope it helps

Answer:

3^3

Step-by-step explanation:

Mr.E.Terry, an engineer, runs a small business. The accounts for the firm are:

* Bank Automobile HST Payable Miscellaneous Expense
* A/R—Various Equipment E. Terry, Capital Rent Expense
* Office Supplies A/P—Various E. Terry, Drawings Telephone Expense
* Office Furniture HST Recoverable Fees Earned

* Journalize the following transactions, using the general journal page below. Calculate and add the HST on any transactions that need it. The rate for HST is 13%. Do not provide explanations.

Jul. 3 Cheque Copy

No. 105, Chambers Bros., payment for monthly rent $450 plus HST of $58.50,
total $508.50.
5 Purchase Invoice
From Glen Printing, $86.50 for office supplies plus HST
8 Sales Invoice
No. 50 to J. Greenley, $250 for services performed, plus taxes.
10 Cash Receipt
From R. Grieve, $200 payment on account.
18 Cash Sales Slip
No. 100 to E. Webb, $85.50 plus taxes.
20 Cheque Copy
No. 106 to E. Terry, $490 for personal use.
24 Bank Debit Memo
Bank deducted $25.00 for a bank service charge.
29 Cheque Copy
No. 107 to Star Blueprinting, $500 on account.
29 Cheque Copy

No. 108 to Municipal Telephone for payment of telephone bill, $200 plus HST of
$26, total $226.
31 Cheque Copy
The balances in the HST accounts for the previous period were: HST Recoverable
$890 and HST Payable $1410. Cheque 109 was written to the Receiver General
for $520 to clear the accounts for that period.

Journalizing these transactions.

Answers

Journalizing the transactions in the accounts of Mr. E. Terry's firm are as follows:

Debit Rent Expense $450

Debit HST Recoverable $58.50

Credit Cash $508.50

Debit Supplies $76.55

Debit HST Recoverable $9.95

Credit Accounts Payable (Glen Printing) $86.50

Debit Accounts Receivable (J. Greenley) $250

Credit Service Revenue $221.24

Credit HST Payable $28.76

Debit Cash $200

Credit Accounts Receivable (R. Grieve) $200

Debit Cash $85.50

Credit Service Revenue $76.66

Credit HST $9.84

Debit Drawings, Terry $490

Credit Cash $490

Debit Bank Charges $25

Credit Cash $25

Debit Accounts Payable (Star Blueprinting) $500

Credit Cash $500

Debit Utilities Expense $200

Debit HST Recoverable $26

Credit Cash $226

Debit HST Payable $1,410

Credit HST Recoverable $890

Credit Cash $520

Data Analysis:

a. Rent Expense $450 HST Recoverable $58.50 Cash $508.50

b. Supplies $76.55 HST Recoverable $9.95 Accounts Payable (Glen Printing) $86.50

c. Accounts Receivable (J. Greenley) $250 Service Revenue $221.24 HST Payable $28.76

d. Cash $200 Accounts Receivable (R. Grieve) $200

e. Cash $85.50 Service Revenue $76.66 HST $9.84

f. Drawings, Terry $490 Cash $490

g. Bank Charges $25 Cash $25

h. Accounts Payable (Star Blueprinting) $500 Cash $500

i. Utilities Expense $200 HST Recoverable $26 Cash $226

j. HST Payable $1,410 HST Recoverable $890 Cash $520

Learn more: https://brainly.com/question/16889477

How many distinct lines of symmetry does the image have?
The image has rotational symmetry after rotating every

Answers

Answer:

1) 6 lines of symmetry

2) 360 ÷ 6 = 60°

The area of the table should be
10 ft2. You want the length of the table to be 1 ft shorter than twice its width.
What should the dimensions of the table be?

Answers

Answer: width : 2.5 ft. and length : 4 ft.

Step-by-step explanation:

The area = W × L

[tex]10=W(2W-1)[/tex]

[tex]10=2W^{2} -W[/tex]

[tex]0 = 2W^{2}-W-10[/tex]

[tex]0=(2W-5)(W+2)[/tex]

W = 2.5 and -2

You can't use -2 so

[tex]L = 2(2.5)-1[/tex]

[tex]L = 4[/tex]

please give me a brainliest answer

A rectangles has a length 2 ft less than three times its width what is the area of the rectangle when its width is 2 ft

Answers

1.22992 is the answer
Explanation: you need 2/2 to divide y and c

Answer:

8

Step-by-step explanation:

rectangle length is 2-3w

w=2

3 x 2=6 - 2=4

l x w

4 x 2 =8

If there were 310 million people in the United States, what was the daily consumption rate in barrels per person in the United States? This is also called "barrels per capita." Round to the nearest hundredth of a barrel.

Answers

The daily consumption rate in the United States will be 10 barrels per person.

Your question is incomplete as you didn't provide the total barrels, therefore, an overview of the answer will be given. In their case, let's assume that the total barrels is given as 3.1 billion.

Therefore, the barrels per person will be:

= Total barrels / Population

= 3.1 billion / 310 million

= 10 barrels per person.

In conclusion, the correct option is 10 barrels per person.

Read related link on:

https://brainly.com/question/25261899

A penguin walks 10 feet in 6 seconds. How far does he walk in 45 seconds?

Answers

75 feet in 45 seconds
The penguin would walk 75 feet.

A line has a slope of 1 and passes through the point (-8, -7). What is its equation in
slope-intercept form?
Write your answer using integers, proper fractions, and improper fractions in simplest form.

Answers

Answer: y = x + 1

Step-by-step explanation:

y = 1x + c

-7 = 1(-8) + c

-7 = -8 + c

-7 + 8 = c

1 = c

y = 1x + 1 or

y = x + 1

Answer:

y+8=m(x+7)

hope this helps:

I used this formula y-y1=m(x-x1)

Hurry!!!
At Smith’s bike rentals it cost $17 to rent a bike for three hours how many hours of bike does a customer get per dollar??

Answers

Answer:

3/17 hours per dollar

Step-by-step explanation:

Use the ratio below:

$17 → 3 hours$1 → x

Solve for x:

17x = 3x = 3/17

Step-by-step explanation:

[tex]\sf\longmapsto \: \$ 17 = 3 \: hours[/tex]

[tex]\sf\longmapsto \: \$ 1 = x[/tex]

Now, Solve x–

[tex]\sf\longmapsto17x = 3[/tex]

[tex]\sf\longmapsto \: x = \frac{3}{17} \: hours \: per \: dollar[/tex]

Therefore,for 3/17 hours of bike a customer get per dollar.

Urgent!!!⚠️⚠️⚠️⚠️⚠️⚠️⚠️It takes 46 pounds of seed to completely plant a 5 acre field how many pounds of seeds are needed per acre

Answers

Answer:

9.2 pounds per acre

Step-by-step explanation:

Divide 46÷5, 9.2

46 represents the pounds of seeds

5 represents how many acres in the field

In a class of 29 students, 10 are female and 20 have an A in the class. There are 2 students who are male and do not have an A in the class. What is the probability that a female student does not have an A?Answer this

Answers

Answer:

The probability would be 3 out of the 10 girls

Step-by-step explanation:

The probability that a female student does not have an A on the test is 7/29.

What is the probability that a female student does not have an A?

Probability is mathematical operation that is used to determine how likely a stated event would happen. The probability the event occurs is 1 and the probability that the event does not occur is 0.

The probability that a female student does not have an A = number of females that do not have an A / total number of females

(29 - 20 - 2 )/ 29 = 7/29

To learn more about probability, please check: https://brainly.com/question/13234031

11. Find the slope of a line which passes through the points (3,4) and (8,-1).
a. -1
b. 1
c. ⅗
d. 5/3​

Answers

Answer:

A

Step-by-step explanation:

Slope = (change in y)/ (change in x)

          = (-1 - 4)/ (8 - 3)

          = -5/5

          = -1

I need to turn this in before 11:59!!!!!!
Solve for x.
4.0 – 3
3
= 7
Enter your answer in the box.
X=

Answers

Answer:

I'm sorry if its incorrect

Answer:

x=6

Step-by-step explanation:

answer is in the photo

Jane went on a 50-minute bicycle ride. Choose the graph that best matches the given key features. Y-intercept: Jane starts at 0 miles from her house…… PLEASE HELP ILL MARK BRAINLIEST

Answers

Explanation: the correct answer is C.

=
Find the slope of the graph of — 4x + 2y = 10 by
rewriting the equation in slope-intercept form.

Answers

Answer:

multiply by -1

Step-by-step explanation:

Slope intercept form : y = mx + b

-4x + 2y  =  10                  Solve the equation for y

+4x        = +4x    

    2y = 4x + 10

      y = 4x/2 + 10/2           Divide all terms by 2

    multiply by -1                   Simply

Can you answer number 7

Answers

I think x= 62

Explanation step by step

Answer:

x= 62

Step-by-step explanation:

brainliest please

What are the law of indices

Answers

Answer:

What are the laws of indices?

Laws of indices provide us with rules for simplifying calculations or expressions involving powers of the same base. This means that the larger number or letter must be the same.

Step-by-step explanation:

The first law: multiplication

The second law: division

The third law: brackets

Negative powers

Power of zero

Fractional powers

second angle of a triangle is 10 degrees larger than the first angle. Third angle is 10 larger than second angle. Find the smallest angle of the triangle solution

Answers

Answer:

1/2 of an answer is zero

Step-by-step explanation:

Given that A = 60° and B = 30'. evaluate (sin
2 cos A) + cos B. leaving your answer in surd
form

Answers

Can you please upload a pic

If AB= 4 units and DC=4 units , what is the length of BC?

Answers

answer 4

Step-by-step explanation:

if ab 4

dc 4

assuming a square bc 4

Álgebra ajajajajajajajajaja

Answers

a.) √64 = 8
b.) 3√125 = 15√5
c.) 4√256 = 64
d) 2√ -169 = 26

Si tienes alguna pregunta, envíeme un mensaje y lo explicaré :)
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