A student is taking a true/false quiz with 16 questions. The student has not studied and has an equal chance of answering True or False on each question. What is probability that the student will answer at least 12 questions correctly?

Answers

Answer 1

Chance of success

0.03841 or 3.84%

Step-by-step explanation:


Related Questions

Find the slope of the line through each pair of points.
(3,-10), (14,-10)

Answers

Answer:

[tex]\displaystyle m=0[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Coordinates (x, y)Slope Formula: [tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Step-by-step explanation:

Step 1: Define

Point (3, -10)

Point (14, -10)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Substitute in points [Slope Formula]:                                                            [tex]\displaystyle m=\frac{-10+10}{14-3}[/tex][Fraction] Add/Subtract:                                                                                 [tex]\displaystyle m=\frac{0}{11}[/tex][Fraction] Divide:                                                                                            [tex]\displaystyle m=0[/tex]

Explain the importance of using the square of the scale factor to calculate the area of a dilated figure

Answers

Answer:

2

Step-by-step explanation:

2+2=4 therefore 2x2 also equals 4, 4/2=2.

In mathematics and geometry, a dilation is an enlargement in size or a reduction in size of a mathematical object. We perform a dilation of a square by placing the shape on a coordinate plane and multiplying each of the coordinates of the vertices of the square by the same number, called the scale factor. This can also be achieved by multiplying the lengths of each of the sides of a square by the scale factor.

When we dilate a square by a scale factor of k, its sides increase by a factor of k, its area by [tex]k^{2}[/tex], and its volume by [tex]k^{3}[/tex].

So, this is the importance of using the square of the scale factor to calculate the area of a dilated figure.

What is Square?

Square, in geometry, a plane figure with four equal sides and four right (90°) angles. A square is a special kind of rectangle (an equilateral one) and a special kind of parallelogram (an equilateral and equiangular one).

What is scale factor?

The scale factor is a measure for similar figures, who look the same but have different scales or measures. Suppose, two circle looks similar but they could have varying radii. The scale factor states the scale by which a figure is bigger or smaller than the original figure.

What is dilation?

In mathematics and geometry, a dilation is an enlargement in size or a reduction in size of a mathematical object. We perform a dilation of a shape by placing the shape on a coordinate plane and multiplying each of the coordinates of the vertices of the shape by the same number, called the scale factor.

According to question, we have to explain  the importance of using the square of the scale factor to calculate the area of a dilated figure.

When we dilate a square by a scale factor of k, its sides increase by a factor of k, its area by [tex]k^{2}[/tex], and its volume by [tex]k^{3}[/tex].

In mathematics and geometry, a dilation is an enlargement in size or a reduction in size of a mathematical object.

We perform a dilation of a square by placing the shape on a coordinate plane and multiplying each of the coordinates of the vertices of the square by the same number, called the scale factor.

This can also be achieved by multiplying the lengths of each of the sides of a square by the scale factor.

Hence, these are the importance of using the square of the scale factor to calculate the area of a dilated figure.

Learn more about dilation here:

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Natalie's meal at Heartland Noodles cost $16.14$ 16.14, not including tip. If Natalie wants to leave a 11%11% tip, how much should she pay? Round to the nearest cent.

Answers

Answer:

Step-by-step explanation:

huh

what is this

does country matter with like the currency

IM DESPERATE I need help with #3. I would like it if you could explain how to do it because there are 2 more that are similar to #3. Thank you!​

Answers

$30 • 10%

10% = 0.10

30 • 0.10 = 3

The answer is $27. They got $3 off.

$30 - $3 = $27.

Answer these please. :0

Answers

Answer:

I wrote the answers below

Step-by-step explanation:

x+3<70------>0,60

-5x<2--------->3,5

5x<2---------->-3,-1

-3x>18-------->-10,-20

2g + 4 > 14
Inequality

Answers

Answer:

g>5

Step-by-step explanation:

2g+4>14

Subtract 4 on both sides

2g>10

Divide 2 on both sides

g>5

I hope this is correct and have a nice day    

Help me solve this pls

Answers

I think the answer is b

PLEASE ANSWER I WILL GIVE BRAINLIEST AND LOVE U FOREVER!

Answers

Answer:

im not even sure this is right

Step-by-step explanation:

A=a+b 2h=2+1.1

2·3.4=5.27

*Hana purchased 2 pairs of pants for $26.59 each and a coat for $49. She used a coupon that saved her $10. The sales tax for the purchase was $7.84. How much was the total purchase?

Answers

Answer:

$100.02

Step-by-step explanation:

*Sales tax is always applied after the discount/coupon

1. Find how much Hana had spent on pants. Since she had bought 2 pairs of pants, and they are $26.59 each, we would have to multiply 26.59 by 2. So,

26.59 times 2 is 53.18.

Hana spent $53.18 on pants

2. Find how much Hana had spent on a coat. Since she had bought 1 coat, and they are $49.00 each, we would have to multiply 49.00 by 1. So,

49.00 times 1 is 49.

Hanna spent $49 on coats

3. Find how much Hana spent on clothes. Since she spent $53.18 on pants and $49 on coats, we would have to add 53.18 and 49. So,

53.18+49=102.18

Hanna spent $102.18 on clothes

4. Find how much Hana "spent" after using the coupon. Since the problem says the coupon helps Hana save $10, we need to subtract 10 from 102.18(the total amount of money Hana spent on clothes before using the coupon). So,

102.18-10=92.18

Hanna "spent" $92.18 on clothes after using the coupon

5. Find how much was the total purchase. Sales Tax is the amount of money that needs to be added to the price. Since the price is $92.18 and the sales tax is $7.84, we need to add 7.84 to 92.18. So,

7.84+92.18=100.02

The total purchase is $100.02

Someone please help me ASAP

Answers

Given:

The number of alligators in a wildlife is given by the function

[tex]f(x)=3450(1.04)^{x+1}[/tex]

To find:

The average growth rate of change from the 4th year to the 7th year.

Solution:

We have,

[tex]f(x)=3450(1.04)^{x+1}[/tex]

For x=4, we get

[tex]f(4)=3450(1.04)^{4+1}[/tex]

[tex]f(4)=3450(1.04)^{5}[/tex]

[tex]f(4)=4197.4525[/tex]

For x=7, we get

[tex]f(7)=3450(1.04)^{7+1}[/tex]

[tex]f(7)=3450(1.04)^{8}[/tex]

[tex]f(7)=4721.5632[/tex]

Now, the average growth rate of change from the 4th year to the 7th year is

[tex]m=\dfrac{f(7)-f(4)}{7-4}[/tex]

[tex]m=\dfrac{4721.5632-4197.4525}{3}[/tex]

[tex]m=\dfrac{524.1107}{3}[/tex]

[tex]m\approx 174.70[/tex]

Therefore, the average growth rate of the change from the 4th year to the 7th year is 174.70 per year.

are of parallelogram
base= 11.4
height = 8.9

Answers

Answer:

area o parallelogram =base ×height

area of parallelogram =11.4×8.9

area of parallelogram =101.46

Answer:

101.46

Step-by-step explanation:

11.4 * 8.9= 101.46

B*H= area

HELP ME PLZ SURFACE AREA OF A RAMP

Answers

Answer:

i think it 37 square feet

1. JP Construction is building a rectangular children's wading pool for the local community center. The pool will be 4.5 meters wide. To meet city building code guidelines, the area of the pool must not be larger than 8 square meters. Which inequality represents the possible lengths of the wading pool, where x represents the length of the wading pool in meters?

Answers

Answer:

[tex]x\leq 1.78[/tex]

Step-by-step explanation:

We are given that

Width of pool, b=4.5 m

We have to find the inequality which  represents the possible lengths of the wading pool.

Let x be the length of wading pool

We know that

Area of rectangle=[tex]length\times breadth[/tex]

According to question

Using the formula

[tex]4.5x\leq 8[/tex]

Divide by 4.5 on both sides we get

[tex]x\leq\frac{8}{4.5}[/tex]

[tex]x\leq 1.78[/tex]

and please explain how you got the answer :)

Answers

Answer:

8. 548.9       9.349.3

Step-by-step explanation:

10% of 499 is 49.9

30% of 499 is 3*49.9=149.7

499+49.9=548.9

499-149.7=349.7

6. Which of the following is equivalent to (17m + 3) + (3m - 1)?
A. 14m + 2
B. 14m + 4
C. 20m + 2
D. 20m +4

Answers

Answer:

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

C

What is the percent increase from 40 to 64

Answers

Answer:

60 percent

Step-by-step explanation:

Where: 40 is the old value and 64 is the new value. In this case we have a positive change (increase) of 60 percent because the new value is greater than the old value.

how do you solve the following problem with a rectangular fraction model ​

Answers

Answer:

1/3 - 1/4 = 1/12Step-by-step explanation:

How long will it take for $3000 to grow to $11,700 at an interest rate of 6.3% if the
interest is compounded continuously? Round the number of years to the nearest
hundredth.
A) 0.83
B) 2160.28
C) 21.60
D) 2.16

Answers

Answer:

Step-by-step explanation:

Using A=P(1+r/n)^nt

Where,

P = principal amount (the initial amount you borrow or deposit), in this case $3000

r = annual rate of interest (as a decimal), in this case 0.06

t = number of years the amount is deposited or borrowed for, in this case we don't know it

A = amount of money accumulated after n years, including interest, in this case $21000

n = number of times the interest is compounded per year, in this case 12

     This gives us 21,000=3,000(1+0.06/12)^12t

    After simplification, 7=(1.005)^12t

By taking the logarithm of both sides,

                            Log7=Log1.005^12t

                               12t = Log 7/Log 1.005

                               12t =390.1545

          This gives us 32.5months

the ratio of the number of girls to the number of boys in a school is 9:10. There are 900 boys in the school.
Work out the total number of students in the school

Answers

Answer:

1710 students.

Step-by-step explanation:

=>900/10=90

=>90x9=810 (girls)

=>810+900=1710 students in total

Hope this helps! ;)

Brainly needs to do something, these kids dating in the comment section of answers is annoying

Answers

Answer:

I know right?

Step-by-step explanation:

Answer:

BRO I KNOW RIGHT? Its so nasty.. and annoying.. and so gross.. u dont know if ur online dating a whole 40 year old man or 50. so gross.

Step-by-step explanation:

Find the value of k please

Answers

You need a graphing calculator or just use an app on your phone (Desmos is a good app to use). I show what to do in the photo below.

Ana and her friends are decorating the gym for a dance. They need 270 balloons. The balloons are only sold un packages. Tere are 50 balloons in each package.

Answers

Answer:

Step-by-step explanation:

270 div

The price of a pair of earrings is $22 but Priya buys them on sale for $13.20.

By how much was the price discounted?

Answers

Answer:

40%

Step-by-step explanation:

Discount price = 22 - 13.20 = $8.80

Discount percentage = [tex]\frac{8.80}{22}*100\\[/tex]

                     

                                   = 40%

The
home team had 4 three-pointers,
10 two-pointers, and 6 free throws. The
visiting team scored 5 three-pointers,
8 two-pointers, and 5 free throws. Which
team scored more points?

Answers

Answer:

home team

.............................................................................................

If home team had 4 three-pointers, 10 two-pointers, and 6 free throws. The visiting team scored 5 three-pointers, 8 two-pointers, and 5 free throws. Then Home team scored more points.

What is Addition?

Addition is a process of combining two or more numbers.

For Home team,

4 three-pointers,

10 two-pointers, and

6 free throws

4+10+6

Four plus ten plus six

20

For visiting team

5 three-pointers,

8 two-pointers, and

5 free throws

5+8+5

Five plus eight plus five

18

As we observe 20 is greater than 18, so home team scored more than Visiting team.

Hence Home team scored more points.

To learn more on Addition click:

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1. Oceanside Bike Rental Shop charges $16 plus $6 an hour for renting a bike. Melanie paid $70 to rent a bike. How many hours did she pay to have the bike checked out? Select the correct equation to represent this situation.

A) 16x+6x=70
B) 16+ 6x=70
C) 16x+6=70

2. Jason bought 9 new baseball trading cards to add to his collection. The next day his dog ate half of his collection. There are now only 42 cards left. How many cards did Jason start with? Select the correct equation to represent this situation.

A) 1/2(x+9)=42
B) 9x+1/2=42
C) 1/2x+9=42

3. Jason sold half of his comic books and then bought 6 more. He now has 17. How many did he begin with? Select the correct equation to represent this situation.

A) 1/2(x+6)=17
B) 1/2x+6=17
C) 1/2x+6x=17

4. Dan spent half of his allowance going to the movies. He washed the family car and earned $9. What is his weekly allowance if he ended with $15? Select the correct equation to represent this situation.

A) 1/2x+9=15
B) 1/2(x+9)=15
C) 9-1/2x=15

Answers

Answer:

1 = C

2 = B

3 = B

4= C

Step-by-step explanation:

Im not 100% sure but.. i tried

Answer:sike i lied i must provide

Step-by-step explanation: its ez just do it

If it is equal to (or) greater than 5, add ___ to previous digit.

(a) 1
(b) 0
(c)10​

Answers

Answer:

(b) 0 is the right answer....

Find P(5) when p = 0.10.

Answers

P(5) = Px5. P=0.10, so 0.10x5= 0.5

0.5 is your answer.

if the circumfrence of a circle is 12pi cm. what is the area of the circle.

Answers

Answer:

11.46

Step-by-step explanation:

Answer:

11.46

Step-by-step explanation:

2. Randy has a house that is worth $250,000 but he still owes $175,000. He has a car that is worth $50,000 but he still owes $37,000. He has a motorcycle valued at $8,000 that is paid in full. He has a credit card bill with a balance of $3, 200. He has $200 in cash, $1,500 in his checking account, and $3,000 in savings. What is his net worth?

Answers

Answer:

$91,200

Step-by-step explanation:

I gave it my best shot sorry if it wrong

Pls help I need the answer fast

Answers

Answer:

2 2/9

hope it's helpful ❤❤❤

THANK YOU.❤

Other Questions
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