In how many ways can you answer 15 true/false questions

Answers

Answer 1

Answer:

32768

Step-by-step explanation:

Each question has 2 options.

On a true/false test with one question, there are 2¹, or 2 possible answers

On a test with 2 questions, there are 2², or 4 possible answers.

On a test with 3 questions, there are 2³, or 8 possible answers.

So, 2¹⁵ = 32768 possible ways.


Related Questions

A beagle puppy has long ears, like its parents. Which of the following best
describes how traits such as long ears are passed from one generation of dogs to
the next?
A. The puppy inherits genes from its parents and presesses all of the traits of
both parents
B. The puppy inherits one gene from each parent and each gene contains
information for half of the puppy's traits,
c. The puppy inherits pairs of genes from its parents, and these gene pairs
determine the traits the puppy will possess.
D. The puppy inherits pairs of genes from each parent, and these genes contain
chromosomes that determine the puppy's traits

Answers

Answer: either B. or C. ( at least i tried. )

On a biology test, a student got 25 questions correct but did not pass. On a second attempt, the student got 33 questions correct. What was the percent increase?

Answers

Answer: 32%

Step-by-step explanation:

The percentage increase will be gotten by using the formula:

= Increase in score / Former score × 100

= (33 - 25) / 25 × 100

= 8/25 × 100

= 8 × 4

= 32%

The percentage increase is 32%.

The knockoff Jersey store sold 6 more Leafs jerseys than Senators. Four times the number of Senators Jersey sold plus three times the number of Leafs jerseys sold is 102. How many Leaf Jerseys were sold?

Answers

Answer:

72

Step-by-step explanation:

6x4=24x3=72

help!! very easy math! please answer correctly. <3

Answers

Answer:

y=1x+(-8)

Step-by-step explanation:

Then find the values of x and y?

Answers

y+8=3y
-2y=-8
y=4

104*2=208
360-208=152
152/2=76

x=76°

Answer:

x=76

Step-by-step explanation:

y+8=3y

-2y=-8

y=4

104*2=208

360-208=152

152/2=76

x=76

Solve the equation 2032 * 93 equals?

Answers

Answer:

188976

Step-by-step explanation:

2032 x 93 = 188976

4×103 times what number is equal to 16×105?

Answers

Answer:4.077669903

Step-by-step explanation:

4×103 is 4.04 times the 16*105.

What is Algebra?

Algebra is a branch of mathematics that deals with symbols or variables and uses arithmetic operations (+, –, ×, ÷) to find the unknown quantities represented by these variables.

Let us consider the number be 'x'.

So, 4*103 of x = 16*105

      x= 16*105/4*103

       x= 4*1.01

       x= 4.04

Hence, the number is 4.04.

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It was estimated that 650 people would attend bowling night, but 676 people actually attended.
What is the percent error, to the nearest percent of the estimate? Enter the answer in the box.

Answers

Simply divide 650/676=.9615 or 96.15%. So there was 3.85% error

The estimate's percent error is 4%, to the closest percentage.

What is percentage?

A value or ratio that may be stated as a fraction of 100 is referred to as a percentage in mathematics. If we need to compute a percentage of a number, we should divide it by its whole and then multiply it by 100. The proportion, therefore, refers to a component per hundred. Per 100 is what the term percent signifies. The letter "%" stands for it.

Find the difference between the estimate and the actual value:

Actual value - Estimated value = 676 - 650 = 26

The absolute value of the difference is 26, indicating that the actual value exceeded the estimated value.

Next, we need to find the relative error, which is the difference divided by the estimated value:

Relative error = Difference / Estimated value = 26 / 650

Finally, we can convert the relative error to a percentage by multiplying it by 100:

Percent error = Relative error x 100 = 26 / 650 x 100 ≈ 4

Therefore, the percent error, to the nearest percent, of the estimate is 4%.

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What is the equation of the graph below? y=1/2sinx y=1/2cosx y=1/2sin2x

Answers

Answer:

24

Step-by-step explanation:

I just did it in class. it was hard but you just have to think about the question

In certain regions of the country, elk can cause damage to agricultural crops by walking through the fields. One strategy designed to limit elk from crossing a field is to surround the field with a fence. Some elk, however, will still be able to bypass the fence. For a period of one month, the number of elk found crossing a sample of fields with a fence was recorded and used to construct the 95 percent confidence interval (2.9,4.4) for the mean number of elk. Assume that the conditions for inference were checked and verified.

Required:
The interval (2.9, 4.4) provides convincing statistical evidence which claims?

Answers

Answer:

The mean number of elk to cross all fields protected by fence is equal to 3.65 per month.

Step-by-step explanation:

Given the confidence interval : (2.9,4.4)

Confidence = xbar ± standard Error

To obtain the mean :

We first calculate the standard error :

Standard Error from confidence interval :

(Upper boundary - Lower boundary interval) / 2

(4.4 - 2.9) / 2

1.5 / 2

= 0.75

Hence, the mean can be obtained as :

(Lower boundary + 0.75) or (Upper boundary - 0.75)

Lower boundary + 0.75 = 2.9 + 0.75 = 3.65

Upper boundary - 0.75 = 4.4 - 0.75 = 3.65

The two lines below are parallel. If the slope of the red line is 3, what is the slope of the green line?

Answers

the slope of the green line would also be 3. this is because the lines are parallel which means they have the same slope.

PLS HELP TIMED HW WILL GIVE BRAINLEIST

Answers

Answer:

4.8

Step-by-step explanation:

[tex] V_{sphere} = \frac{4}{3} \pi r^3 [/tex]

[tex] 144\pi= \frac{4}{3} \pi r^3 [/tex]

[tex]r^3 = \frac {3 \times 144\pi}{4\pi}[/tex]

[tex]r^3 = 3 \times 36[/tex]

[tex]r^3 = 108[/tex]

[tex]r = \sqrt[3]{108} \\ \\ r = 4.7622031559 \\ \\ r \approx \: 4.8 \: [/tex]

What is the answer for this question

Answers

Answer:

68

Step-by-step explanation:

16^2= 2x16/16+16=32

32-100=68

amys older brother works 35 hours each week. if he works 18 dollars an hour how much does he earn in one week.

a 350
b 130
c 900
d 630

Answers

Answer:

He gets 630 dollars a week so the answer is D.

On Tuesday, 14 students handed in a permission slip for a field trip. On Thursday, twice as many students handed in their permission slip than on Tuesday. On Friday, an additional 7 students turned in their permission slip. If 50 students received a permission slip, how many students did NOT turn it in?
15 students
0 students
1 student
49 students

Answers

Answer:

15

Step-by-step explanation:

14+14=28+7=35-50=15

Hope that helped (your free to ask any question or if you are confused)

At one point during the hike, Noe is at an elevation of 453 feet. After descending at a rate of 50 feet per
minute, she reaches an elevation of 146 feet.
How long does the descent take?

Answers

Answer:

6.14 minutes   or   6 minutes & 8.4 seconds

Step-by-step explanation:

Initial elevation: 453 ft

Final elevation: 146 ft

Difference in elevation: 453 ft - 146 ft = 307 ft

speed = 50 ft/min

speed = distance/time

time * speed = distance

time = distance/speed

time = (307 ft)/(50 ft/min)

time = 6.14 minutes = 6 minutes + 0.14 * 60 seconds

time = 6.14 minutes = 6 minutes + 8.4 seconds

Directions: identify weather the problem has a minimum or a maximum type an “X” in the box next to your answer

A) y= x^2+2x-1
Minimum or maximum

B) y=-x^2-8x-1
Minimum or maximum

C) y=2x^2+8x

Answers

Answer:

A)   minimum

B)   maximum

C)   minimum

Step-by-step explanation:

A positive x² coefficent means the parabola opens up and the vertex is the minimum

A negative x² coefficent means the parabola opens up and the vertex is the maximum

---------------------------------

A)   minimum

B)   maximum

C)   minimum

need some help on this

Answers

Answer:

G

Step-by-step explanation:

From the box plots given, the options that seem very much on support of the information given in the box plot is option G.

Median number in a box plot is the number at the point where the vertical line divides the box.

The median for Thin Crust is about 55 while the median for Thick Crust is above 55.

Therefore we can conclude that:

"The median number of orders for thick crust pizzas is larger than the median median number of orders for thin crust".

!ANSWER ASAP! Explain how to solve 2x + 1 = 9 using the change of base formula log base b of y equals log y over log b. Include the solution for x in your answer. Round your answer to the nearest thousandth.

Answers

Answer:  x = 3

Step-by-step explanation:

Subtract 1

 2^x = 8

Take the log.

 x·log(2) = log(8)

Divide by the coefficient of x.

 x = log(8)/log(2) = log₂(8)

We know that 8 = 2³, so log₂(8) = 3.

 x = 3

_____

If your equation is ...

 2^(x+1) = 9

then

 x + 1 = log(9)/log(2)

 x = log(9)/log(2) -1 . . . . . . change of base formula can be used, but isn't helpful unless you have a calculator that computes log₂(9).

 x ≈ 2.170

The value of x from the logarithmic equation is x = 3

What is Logarithm?

The power to which a number must be increased in order to obtain another number is known as the logarithm. A power is the opposite of a logarithm. In other words, if we subtract an exponentiation from a number by taking its logarithm

The properties of Logarithm are :

log A + log B = log AB

log A − log B = log A/B

log Aⁿ = n log A

Given data ,

Let the logarithmic equation be represented as A

Now , the value of A is

2ˣ + 1 = 9   be equation (1)

On simplifying the equation , we get

Subtracting 1 on both sides of the equation , we get

2ˣ = 8

Now , taking logarithm on both sides of the equation , we get

log ( 2 )ˣ = log ( 8 )

From the laws of logarithm , we can simplify

x log ( 2 ) = log ( 8 )

And , on further simplification , we get

x log ( 2 ) = log ( 2 )³

So , x log ( 2 ) = 3 log ( 2 )

Divide by log ( 2 ) on both sides of the equation , we get

x = 3

Hence , the value of x = 3

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HELP ME PLEASEEEEEEEEEEEEEEEE

Answers

split it into two rectangles
area = length x width
7 x 6 = 42
3 x 11 = 33
42 + 33 = 75 cm^2

the question is in the picture

Answers

Answer:

the hypotenuse is 10

Step-by-step explanation:

6^2 + 8^2 = 100

square root 100 and its 10

If Jamie had 12 pencils and she lost 9 what's the fraction left

Answers

Answer:

3/12

Step-by-step explanation:

Hope it helps plz give brainliest! :D

The heights of 4 different people are: 1.55m, 1.52m, 1.81m, and 1.91m. The range of these
heights is:

Answers

the answerr would be 0.39 cm

What is the factorization of the polynomial graphed below? Assume it has no
constant factor. Write each factor as a polynomial in descending order.

Answers

Answer:

see below

Step-by-step explanation:  5 25 14  16

the graph shows the roots of the polymonimal to be

x = 0   and x - 4 = 0     x = 4     when y or f(x) = 0

f(x)   =   x(x-4)   =  x² - 4x

f(x)   =   x² - 4x

when x = 0   f(x) = 0

         x = 2   f(x)  =  2² - 4(2)   =  -4

         x = 4   f(x)  =  4² - 4(4)   =  0

The factorization of the polynomial graphed are,

⇒ y = x (x - 5)

What is mean by Function?

A relation between a set of inputs having one output each is called a function. and an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).

Now, We have been given graph of polynomial.

This is in parabolic shape.

So, this is graph of quadratic function.

Hence,, there will be two zeroes.

And also number of zeroes of a function is equal to the number of times graphs cuts x-axis

Here, we can see graph cuts at (0,0) and (5,0).

So, the Factors will be:

(x - 0) and (x - 5).

Since, If x = 0 is a zero then it means factor will be (x)

Similarly, If x = 5 is a zero then it means factor will be (x-5).

Thus, the factorization of the polynomial graphed are,

⇒ y = x (x - 5)

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Choose all the factor pairs of 12.
A. 1,12
B. 2,6
C. 3,4
D. 5,7
E. 6,6

Answers

A,B,C
When they multiply together they equal 12
A, B, C are correct.

1•12=12✔️
2•6=12✔️
3•4=12✔️
5•7=35❌
6•6=36❌

Watch help video
Write two numbers that multiply to the value on top and add to the value on bottom.
30
11

Answers

33 22 is the answer spsjajazk I ibfs

Answer:

33 22 is the answer

Step-by-step explanation:

Knowing that P = X x i / 100, C = main, e = Rate. Calculate the rate for the formula: A principal of R $ 105,000.00 obtained a percentage of R $ 35,000.00. What is the rate applied?

Answers

Answer:

Interest expressed as a percent of the principal will be referred to as an ... earned on an investment of P at the annual interest rate r for a period of t ... (c) monthly, (​d) weekly, (e) daily, and (f) continuously at a nominal annual ... and substitute x = 3−2y in for x in second equation and find 4y−3(3−2y) = 1.

Step-by-step explanation: sorry if that doesn't help :(

state is a given functions are inverses. NO LINKS!! Part 2

Answers

Step-by-step explanation:

5.

g(x)=-2x+1

let y=2x+1

Interchanging role of x & y

x=2y+1

y=½x-½

g-¹(x)=½(x-1)

not

equal to f(x)=-x+1

Given function are not function of each other .

6.

g(x)=-x

let

y=-x

Interchanging role of x & y

x=-y

y=-x

g-¹(x)=-x

not

equal to f(x)=3+⅓x

Given function are not function of each other .

9514 1404 393

Answer:

  none of the function pairs are inverses

Step-by-step explanation:

Inverse linear functions will meet all of several requirements:

each is a reflection of the other about the line y=xthe solution of the simultaneous equations in on the line y=xin standard form, the coefficients are swapped (only)the product of the slopes is 1

_____

For these problems, it is probably easiest to look at the last requirement. Each function is given in slope-intercept form, so the slope is simply the x-coefficient.

5) The product of slopes is (-2)(-1) = 2 ≠ 1 . . . NOT inverses

6) The product of slopes is (-1)(1/3) = -1/3 ≠ 1 . . . NOT inverses

7) The product of slopes is (-4/3)(-1/2) = 2/3 ≠ 1 . . . NOT inverses

8) The product of slopes is (3/2)(-5/2) = -15/4 ≠ 1 . . . NOT inverses

Find an angle coterminal to 746°, where 0° < 0 < 360°

Answers

Answer:

26º

Step-by-step explanation:

746 - 360 = 386

386 - 360 = 26

what is the polynomial degree for 7,8+6,5-4

Answers

Answer:

7

,

14

,

1

Step-by-step explanation:

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