Answer:
1010₂ = 10₁₀1010₁₀ = 1111110010₂Step-by-step explanation:
You want to know the value of 1010 in binary.
Conversion to binaryWe're not sure if you have the base ten number 1010 and you want its value in binary, or if the number 1010 is in binary, and you want its value in base ten.
Converting the base ten number to binary means looking at the remainders from division by 2, until the quotient is zero.
1010/2 = 505 r 0505/2 = 252 r 1252/2 = 126 r 0126/2 = 63 r 063/2 = 31 r 131/2 = 15 r 115/2 = 7 r 17/2 = 3 r 13/2 = 1 r 11/2 = 0 r 1The binary value is the list of these remainders from the bottom up:
1010₁₀ = 11 1111 0010₂
(It is often convenient for readability to group the digits by 3 or 4.)
Conversion from binaryThe conversion from binary essentially uses the expanded form of the number. The arithmetic is done in the base you're converting to. Here, that's base ten.
1010₂ = 1×2³ +0×2² +1×2¹ +0×2⁰ = 8 +2 = 10
1010₂ = 10₁₀
College tuition: A simple random sample of 35 colleges and universities in the United States has a mean tuition of $19,300 with a standard deviation of
$10,800. Construct a 95% confidence interval for the mean tuition for all colleges and universities in the United States. Round the answers to the nearest whole
number.
A 95% confidence interval for the mean tuition for all colleges and universities is
Answer:
The 95% confidence interval for the mean tuition for all colleges and universities in the United States is between $15718 and $22882.
Step-by-step explanation:
Sample size greater than 30, which means that we use the normal distribution to find the interval.
We have that to find our level, that is the subtraction of 1 by the confidence interval divided by 2. So:
α = (1 - 0.95) / 2
= 0.025
Now, we have to find z in the table as such z has a pvalue of . So it is z with a pvalue of 1 - 0.025 = 0.975.
So, z = 1.96
Now, find M as such
M = z * (σ / √n )
In which σ is the standard deviation of the population and n is the size of the sample.
M = 1.96 * ( 10800 / √35 )
M = 3581.72
M ≈ 3582
The lower end of the interval is the sample mean subtracted by M. So it is 19300 - 3582 = $15718.
The upper end of the interval is the sample mean added to M. So it is 19300 + 3582 = $22882.
The 95% confidence interval for the mean tuition for all colleges and universities in the United States is between $15718 and $22882.
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A book sold 33,500 copies in its first month of release. Suppose this represents 8.9% of the number of copies sold to date. How many copies have been sold to date?
Round your answer to the nearest whole number.
Answer:
376,404 copies sold.
Step-by-step explanation:
To find this answer, divide 33,500 copies by the 8.9%:
33,500 divided by 8.9% = 376404.494382
Now, if we round this number to the nearest whole number, it would be:
376,404 copies sold.
May I have Brainliest please? My next rank will be the highest one: A GENIUS! Please help me on this journey to become top of the ranks! I would really appreciate it, and it would make my day! Thank you so much, and have a wonderful rest of your day!
What is the answer to this question?
Find the value of X in the diagram.
The value of x is 10, in the diagram, Vertically opposed angles
What is Vertically opposed angles?
Two lines intersecting at a point create vertical angles. Every time they are on an equal footing. Alternatively stated, four angles are created anytime two lines cross or intersect. Two opposed angles are equal and are referred to as vertical angles, as we can see. Due to their position opposite one another, they are also known as "Vertically opposed angles."
Angles that are vertically opposed to one another at a certain vertex are formed by two straight lines intersecting. The equality of the vertically opposed angles has been established.
Here in the diagram 5x = 2y
y = 5X/2
We have 2y+2y+8x = 180 in a straight line.
So 4y+8x = 180
4(5x/2) +8x = 180
10x+8x = 180
x = 180/18
x = 10
Hence, the value of x is 10, in the diagram.
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Reasoning Solve the given equation and check your answer. Use pencil and paper. Is it possible to solve the equation using multiplication?
Explain your reasoning.
8x= (-16)
The value of x after solution of the equation 8x = -16 is -2 and it is not possible to solve this equation using multiplication.
According to the question,
We have the following equation:
8x = -16
Now, this equation can not be solved using multiplication because 8 is already in multiplication with x on the left hand side. If 8 would have been in division then it could be solved using multiplication.
So, dividing by 8 on both the sides:
x = -16/8
x = -2
Hence, the value of x after solution of the equation 8x = -16 is -2 and it is not possible to solve this equation using multiplication.
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An investment of $400 is compounded monthly at an interest rate of 7.6%. What will the
balance be in eight years? Round to the nearest hundredth.
Answer:
See below
Step-by-step explanation:
Present Value = 400
Period = 1 month 8 years is n = 96 periods
Interest per period in decimal form i = .076 / 12 = .0063333
Fv = PV ( 1 + i)^n
Fv = 400 ( 1 + .076/12)^96 = 733.29 dollars
Membership at a private arcade club costs a one-time initiation fee of $50 plus $10
per month.
Part A: Write a function expressing the total amount of money spent on membership
as a function of the number of months.
Part B: Identify the independent variable and the dependent variable in this
situation.
Part C: How much total money has been spent on membership after 12 months?
Answer:
600 is the answer to the question
Express
2x² + 20x + 7
in the form 2(x + p)² + q
The given expression is expressed in the form of 2(x + p)² + q as:
f(x) = (x + 5)² - 21.5
Given,
Express
2x² + 20x + 7
Step 1: Subtract both sides by 7
2x² + 20x = -7
Step: GCF and divide
2(x² + 10x) = -7
x² + 10x = -7/2
Step 3: Complete the Square
x² + 10x + 25 = -7/2 + 25
(x +5)² = 43/2
Step 4: Subtract 43/2 to both sides
(x + 5)² - 43/2
Hence we get the equation.
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Please help! Thank you so much!
Answer:
x=14
Step-by-step explanation:
find the value of y when x=11. y--6x +5
Answer: 71
Step-by-step explanation:
First, plug 11 in for x: y=6(11)+5
Then, multiply 6 by 11: 6(11)=66
Finally, add 5: 66+5=71
Randi takes the stairs at work whenever possible instead of the elevator. She must climb 51 steps from her office to get to the accounting department. The human resources
department is 34 steps below her office. How many steps are there between human
resources and accounting?
The steps between the human resource department and accountant department are 85 steps.
What is Human Resource?
The group of individuals who work for a given organization, business sector, industry, or economy is referred to as its human resources.
As given in the question,
Randi must climb 51 steps from her office to get to the accounting department, and
The HR department is 34 steps below her office.
Since, the HR department is below her office and accountant department is above her office so, we need to add the steps taken from her office to reach both department.
So,
Steps between HR department and accountant department = Steps between her office and HR department + Steps between her office and accountant department
Steps between HR department and accountant department = 51 + 34
Therefore,
Steps between HR department and accountant department = 85 steps
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Foster recently went on a weekend hiking trip and recorded the elevation changes at several checkpoints. Fosters elevation log can be seen in the table below. If the next checkpoint has a change in final elevation of 148.3 what is the change in elevation
4. The greatest change in elevation is on Checkpoint 4.
5. The change in elevation on the final checkpoint is of: -62.1 feet.
How to obtain the change in elevation for each checkpoint?The change in elevation for each checkpoint is given by the subtraction of the final elevation by the initial elevation. Both these elevations are given on the table.
Hence, for each checkpoint, the changes are given as follows:
Checkpoint 1: -78 - (-125.4) = 47.4 feet.Checkpoint 2: -101.6 - (-78) = -23.6 feet.Checkpoint 3: 14.7 - (-101.6) = 116.3 feetCheckpoint 4: 225.1 - 14.7 = 210.4 feetHence the greatest change is of 210.4 feet on checkpoint 4.
The final elevation is of 148.3 feet, hence the change in elevation on the final stage is obtained as follows:
148.3 - 210.4 = -62.1 feet.
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8(4-a)=2a
Answer :16/5 or 3.2
I need help with the checking the answer not the equation. We check a solution to an equation by replacing the variable in the equation with the value of the solution. A solution should result in a true statement when simplified. This is what I need. Thank you.
Answer:
8(4-a)=2a
32-8a=2a
32=10a....dividing through by 10a we get..
32/10=10a/10
3.2=a
answer is 3.2
We know that the problem we are going to be dealing with is an equation. The big question is, what should we do? What steps should be taken to get to the answer? There are several steps. One of them is expanding the equation. We can't solve until we expand the left side. So the way we're going to do it is: the distributive property. This one states that if you have an [tex]a[/tex] term multiplied by the sum of [tex]b[/tex] and [tex]c[/tex] (the last two terms are in parentheses), then, in a sense, [tex]a[/tex] gets "distributed" and what results is this:
[tex]\darkblue{ab+ac}[/tex]. So now we apply that to our problem: [tex]8(4-a)=32-8a[/tex]. Now we make the replacement: [tex]32-8a=2a[/tex]. Then, notice that we have [tex]a[/tex] terms on both sides. What we do is we subtract [tex]2a[/tex] from the right and left and subtract [tex]32[/tex] from the left and add to the right: [tex]-8a-2a=-32[/tex]. Now let me share a little trick with you. First, we can add the [tex]a[/tex] terms together: [tex]-10a=-32[/tex]. Next, if you have minus signs on both sides, you clear them: [tex]10a=32[/tex]. Now divide both sides by 10. Here another trick comes into play: If you divide by 10 you move the decimal sign 1 place to the left.
[tex]a=3.2[/tex]
Now for the checking - put [tex]3.2[/tex] for [tex]a[/tex] and simplify. The answer should be a statement true for all values of [tex]a[/tex]. Let's go.
[tex]8(4-3.2)=2(3.2)[/tex]
[tex]8(0.8)=6.4[/tex]
[tex]6.4=6.4[/tex] is the result. Since the statement is true, we understand that the solution WAS correct and that [tex]3.2[/tex] IS the value of [tex]a[/tex] in the equation [tex]8(4-a)=2a[/tex].
URGENT!! ILL GIVE
BRAINLIEST!!!! AND 100 POINTS!!!!!
Correct vocabulary for theses two angles
Answer:
3: alternate exterior angles 4: supplementary angles
Step-by-step explanation:
3: that are outside and are on dif sides
4: they are interior and add up to 180 degrees
dembow needs to hire a mechanic to fix his car. Mechanic G charges $30 per hour of work while mechanic k charges $20 per hour of work plus a $30 reservation fee. Write equations for mechanic G and mechanic k where y is the cost in dollars and x is the hours of work.
The equations for Mechanic G is y = 30x and for mechanic K is y = 20x + 30
What is rate?Rate is a ratio that compares two different quantities which have different units. For example, if we say John types 50 words in a minute, then his rate of typing is 50 words per minute. The word "per" gives a clue that we are dealing with a rate.
for mechanic G since he charges 30 dollars per hour, for x hours his charge will be 30x
so that y = 30x
For K since he charges at rate of 20 dollars per hour, his charge after x hours will be 20x. if he takes 30 dollars reservation fee
then his total cost is y = 20x + 30
In conclusion, the equations for mechanic G and K are y = 30x and y = 20x + 30 respectively.
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A fraction can easily be written as a percent when the denominator is _________________.
Group of answer choices
100
50
10
20
Answer:
100
Step-by-step explanation:
Example 33/ 100 = 33% 28/ 100= 28 % etc
Plsssssssss helpppppppppppp
Y is greater than or equal to 2
The given statement in mathematical notation is Y≥2.
Given that the statement is Y is greater than or equal to 2.
We want to write the given statement in the mathematical notation.
In algebra, statements basically consist of true or false statements. These mathematical statements can consist of words and symbols.
The greater than in symbolic form is > and greater than or equal to ≥.
As it is given that Y is greater than or equal to 2 can be rewritten as Y≥2.
Hence, the given statement Y is greater than or equal to 2 is Y≥2.
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HELP ASAP!! 50 PNTS THANKS
Answer: 1st and 2nd
Step-by-step explanation:
Write an expression for the sequence of operations described below.
raise 3 to the 9th power, then add the result to j
Do not simplify any part of the expression.
An expression for given sequence of operations is: j + 3^9
In this question, we need to write an expression for the sequence of operations described below.
raise 3 to the 9th power, then add the result to j
Consider the part of given statement,
raise 3 to the 9th power
We write this as: 3^9
then we add this result to j.
So, we get an expression: 3^9 + j
Therefore, an expression for given sequence of operations is: j + 3^9
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A company receives medicine in 1-gallon (128-ounce) jars and then sells the medicine in vials that hold 3 ounces. What fraction of another vial could be filled with the leftover medicine? How do you know?
The fraction of another vial could be filled with the leftover medicine is 125 / 128.
What is a fraction?A fraction is simply a piece of a whole. The number is represented mathematically as a quotient where the numerator and denominator are split. In a simple fraction, the numerator as well as the denominator are both integers.
In this case, the company receives medicine in 1-gallon (128-ounce) jars and then sells the medicine in vials that hold 3 ounces
The fraction left will be:
= 1 - Amount filled
= 1 - 3/128
= 125 / 128
The fraction left is 125 / 128.
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Sketch the graph of the quadratic function and the axis of symmetry. State the vertex, and give the equation for the axis of symmetry.
f(x)=-3(x+2)²+1
Use the graphing tool to graph the function as a solid curve and the axis of symmetry as a dashed line.
The equation of the axis of symmetry will be x = -2 and the curve is drawn below.
What is the parabola?It's the locus of a moving point that keeps the same distance between a stationary point and a specified line. The focus is a non-movable point, while the directrix is a non-movable line.
Let the point (h, k) be the vertex of the parabola and a be the leading coefficient.
Then the equation of the parabola will be given as,
y = a(x - h)² + k
The equation is given below.
y = -3(x + 2)² + 1
The equation of the axis of symmetry will be given as,
x + 2 = 0
x = - 2
The equation of the axis of symmetry will be x = -2 and the curve is drawn below.
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The bulbs are incandescent bulb for a and fluorescent bulb is for b
A 0.3kwh in 3 hours and 1.0kWh in 10 hours and for b is 0.35Kwh in 3 hours and in 10 hours it’s 0.9 kWh usage (pls help brainlist)
The graph has been shown where lines A and B meet each other at the coordinates (0.51, 5.2).
What are graphs?In mathematics, a graph is a visual representation or diagram that shows facts or values in an ordered way. The relationships between two or more items are frequently represented by the points on a graph.Bar graphs, circle graphs, and line graphs are the three most often used types of graphs. Different types of data can be displayed using different types of graphs.So, the coordinates where both lines meet are:
Coordinates for line A:
(0.3, 3)(1.0, 10)Coordinates for line B:
(0.35, 3)(0.9, 10)Now, plot the graph as follows:
(Refer to the graph attached below)
The coordinates where both lines meet are:
(0.51, 5.2)Therefore, the graph has been shown where lines A and B meet each other at the coordinates (0.51, 5.2).
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help me on this question (20pts)
The function with same rate of change as the function y = (7/4)x + 3 will be option C.
The rate of change for a function is nothing but rate of change of one thing over the second thing.
it can be calculated by [tex]\frac{y_{2} - y_{1} }{x_{2} - x_{1} }[/tex]
For a equation written in y = mx + c , m is nothing but the slope / rate of change of function.
So for function y = (7/4)x + 3
m = 7/4 which is the rate of change for this function.
Now let us find rate of change for each function.
For A rate of change will be = (-4 - 0) / (5 - 1)
= -4/3
For B it will be = ( 4 - 1) / (0 - (-1) )
= 3
For C it will be = (15 - 8) / (8 - 4)
= 7/4
For D it will be = (-2 - 0) / ( 0 - (-1) )
= -2
Therefore the rate of change which is same as the given function is of option C.
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A toy rocket is shot vertically into the air from a launching pad 7 feet above the ground with an initial velocity of 72 feet per second. The height h, in feet, of the rocket above the ground at t seconds after launch is given by the function h(t)=-16 t²+72 t+7. How long will it take the rocket to reach its maximum height? What is the maximum height?
The rocket reaches its maximum height at ______ second(s) after launch.
(Simplify your answer.)
The maximum height reached by the object is ______feet.
(Simplify your answer.)
The maximum height of the object is 88 feet and the time is 2.25 second(s) after launch
Time to reach the maximum heightThe function is given as
h(t) = -16t² + 72t + 7
Differentiate the above function
So, we have the following representation
h'(t) = -32t + 72
Set to 0
-32t + 72 = 0
So, we have
32t = 72
Divide by 32
t = 2.25
Hence, the time is 2.25 seconds
The maximum heightIn (a), we have
t = 2.25
Substitute t = 2.25 in h(t) = -16t² + 72t + 7
h(2.25) = -16(2.25)² + 72(2.25) + 7
Evaluate
h(2.25) = 88
Hence, the maximum height is 88 feet
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Solve #20 and show explanation
The next step is 4004 x 4004. So option(b) is correct
The process of making something less complicated and thus easier to do or understand, or the result of such a process is a simplification.
Reduce the expression to 3/4x + y/2 (4x + 7). The given expression can be written as 3/4x + y/2 (4x) + y/2 using the distributive property.
Given that
44 x 44 = 1936
404 x 404 = 163216
We have to find the next step
In the first step only fours are there
In the next step 0 is included in between the fours
If we follow the same sequence there will be two zeros coming between fours
= 4004 x 4004
= 16032016
Therefore the next step is 4004 x 4004
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Mr. Baker leaves the check-in counter at the airport and walks to a moving sidewalk, which takes him to his gate. Mr. Baker's distance (d), in meters, from the check-in counter while he has been standing on the moving sidewalk for s seconds, is described by the function d = 2s + 20.
Which statement is true?
A. Mr. Baker is 2 meters from the check-in counter after 22 seconds.
B. Mr. Baker is 20 meters from the check-in counter 24 seconds.
C. Mr. Baker moves 2 meters per second while standing on the moving sidewalk, and he walked 20 meters to get to the moving sidewalk.
D. Mr. Baker moves 20 meters per second while standing on the moving sidewalk, and he walked 2 meters to get to the moving sidewalk.
Mr. Baker moves 2 meters per second while standing on the moving sidewalk, and he walked 20 meters to get to the moving sidewalk. which is the correct answer would be an option (C).
What is the distance?Distance is defined as the product of speed and time.
The function shows Mr. Baker's distance (d), in meters, from the check-in counter while he has been standing on the moving sidewalk for s seconds. d = 2s + 20.
Here He travels at a speed of two meters per second while standing on the moving sidewalk, and he walked 20 meters to get there.
Thus, Mr. Baker moves 2 meters per second while standing on the moving sidewalk, and he walked 20 meters to get to the moving sidewalk.
Hence, the correct answer would be option (C).
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Which Trinomials are perfect square trinomials?
A) 25a^2-40a+64
B) x^2-6x-16
C) 16z^4+48z^2+36
D) 9m^2+36m+36
Trinomials that are perfect square trinomials are (C) [tex]16z^{4}+48z^{2}+36[/tex] and (D) [tex]9m^{2}+36m+36[/tex].
[tex](a+b)^{2}=a^{2}+2ab+b^{2}[/tex]
We will check every trinomials in given options.
(A) [tex]25a^{2}-40a+64[/tex]
[tex]25a^{2} = (5a)^{2}[/tex]
[tex]64 = 8^{2}[/tex]
[tex]-40a \neq 2(5a)(8)[/tex]
Hence, its not a perfect square.
(B) [tex]x^{2}-6x-16[/tex]
[tex]x^{2} = (x)^{2}[/tex]
[tex]-16 \neq 4^{2}[/tex]
[tex]-6x \neq 2(x)(4)[/tex]
Hence, its not a perfect square.
(C) [tex]16z^{4}+48z^{2} +36[/tex]
[tex]16z^{4} = (4z^{2} )^{2}[/tex]
[tex]36 = 6^{2}[/tex]
[tex]48z^{2}=2(4z^{2} )(6)[/tex]
[tex]16z^{4}+48z^{2} +36 = (4z^{2}+6 )^{2}[/tex]
Hence, its a perfect square.
(D) [tex]9m^{2}+36m+36[/tex]
[tex]9m^{2} = (3m)^{2}[/tex]
[tex]36 = 6^{2}[/tex]
[tex]36m=2(3m)(6)[/tex]
[tex]9m^{2}+36m+36 = (3m+6)^{2}[/tex]
Hence, its a perfect square.
Therefore, only (C) and (D) are perfect square.
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Factorise 12xto the power of 3 -4xsquared
The factorized form of the given mathematical phrase 12x to the power of 3 - 4xsquared will be 4x²(3x - 1).
What is an algebraic factor?An algebraic factor is the multiplication of two algebraic terms.
The root of the quadratic equation formed by the algebraic factor is always real.
That term could be in form of summation multiplication or in subtraction.
As per the given phrase,
12x to the power of 3 - 4xsquared
12x³ - 4x²
Take x² as common,
x²(12x - 4)
Take 4 as common
4x²(3x - 1)
Hence "The factorized form of the given mathematical phrase 12x to the power of 3 - 4xsquared will be 4x²(3x - 1)".
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A fruit basket contains 3 apples, 1 orange, 3 grapefruits, and 2 bananas. How many
pieces of fruit are in the basket?
O 10
09
08
07
What is the answer???
Answer:
-(x+1)²+4
Step-by-step explanation:
y = -x²-2x-3
= -[x²+2x+3]
= -[(x²+2x)+3]
{formulae to get the vertex form is add (b/2)² to the expression
(2/2)² = 1}
= -[(x²+2x+1)-1+3]
{we are adding so we have to subtract the same number as well}
= -[(x²+2x+1)+2]
thus vertex form,
y = -(x+1)²+2