The value of the expression ( 1/2 )x + ( 1/2 )x + x + 1 is 2x + 1.
A variable, a number, or a mix of numbers, operations, and numbers symbols make up an expression. Two expressions joined by an equal sign form an equation.
A formula called an equation uses the equals symbol (=) to denote the equality of two expressions.
Consider the expression,
1/2x + 1/2x + x + 1
Taking common out,
( 1/2 )x + ( 1/2 )x + x + 1 = ( 1/2) × [ x + x ] + x + 1
( 1/2 )x + ( 1/2 )x + x + 1 = (1/2x) × 2 + x + 1
( 1/2 )x + ( 1/2 )x + x + 1 = x + x + 1
( 1/2 )x + ( 1/2 )x + x + 1 = 2x + 1
Therefore, the value of ( 1/2 )x + ( 1/2 )x + x + 1 is 2x + 1.
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question in the picture
Answers:
14 rides: 52
and
r rides: 3r + 10
Step-by-step explanation:
3(14) + 10
52
ndclhdabcDC.sbdcb.dschsd
Answer:
I agree thanks for the points
Step-by-step explanation:
Simplify each rational expression. State any restrictions on the variable. x²+4 x+3 / x²-3 x-4
Just like polynomials and other expressions, you can perform basic arithmetic operations on rational expressions: addition, subtraction, multiplication, and division. A rational expression is a fraction whose numerator and the denominator is a polynomial. If f is a logical expression, then we can write f in the form of p/q, where p and q are polynomials.
Solution:
To find the restriction on a variable in the denominator, we Set the denominator equal to zero. Then we solve for X
So,
X+1 = 0
X = -1
X-4 = 0
X = 4
When we put the X= -1 or X= 4, we get 0 in the denominator, so these are restrictions variables
= (x2+4x+3)/(x2-3x-4)
= (x+1) (x+3)/(x+1) (x-4)
Now cancel the common factor (x+1)
= x+3x-4
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What is the probability that a randomly chosen diameter is greater than or equal to 10?
probability that a randomly chosen colony diameter is greater than or equal to 10 =P(10<X<12)+P(12<X<14)
=0.14+0.02 = 0.16
What is probability?
Probability is basically how likely something is to happen. Whenever we're uncertain around the outcome of an occasion, ready to talk approximately the probabilities of certain outcomes—how likely they are. The analysis of occasions administered by probability is called statistics.
Probability may be a measure of the probability of an event to occur. Numerous events cannot be predicted with add up to certainty. Able to predict as it were the chance of an occasion to happen i.e. how likely they are to happen, using it.
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What 8.1+2.53 with shown work
Answer:
10.63
Step-by-step explanation:
5. A rock is thrown straight up from a 224-foot tall cliff. The height of the rock as a
function of time is given by the equation h(t) = -16t² + 80t+224. How many
seconds until the rock hits the ground?
By finding the positive root of the quadratic equation, we conclude that the rock will hit the ground 7 seconds after it is thrown.
How many seconds until the rock hits the ground?
We know that a rock is thrown from a cliff whose height is 224 ft. And the equation that models the height of the rock as is the quadratic equation:
h(t) = -16t² + 80t + 224
The rock will reach the ground when its height is equal to zero, so what we need to find is the positive root of the quadratic equation, so what we need to solve is:
-16t² + 80t + 224 = 0
Solving it we get:
t = (-80 ± √(80² - 4*(-16)*224)/(2*-16)
t = (-80 ± 144)/(-32)
The positive solution is:
t = (-80 - 144)/(-32) = 7
This means that the rock will hit the ground 7 seconds after it is thrown.
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Which angles of rotation will map the figure onto itself? Explain your reasoning
and/or show your work.
Solve each system by substitution.
4y - 6 = 2x , y - 3x = 9
Using substitution method, the solution of the given system of equations is (-3,0)
A system of equation can be solved using:
graphical methodsubstitution methodelimination methodThe given system of equations:
4y - 6 = 2x ............ (1)
y - 3x = 9 .............. (2)
We need to find the solution using substitution method.
In equation (2), add 3x to both sides:
y - 3x + 3x = 9 + 3x
y = 9 + 3x ........ (3)
Substitute y = 9 + 3x into equation (1):
4y - 6 = 2x
4.(9 + 3x) - 6 = 2x
36 + 12x - 6 = 2x
12x - 2x = 6 - 36
10x = -30
x = -3
Substitute back x = -3 into equation (3)
y = 9 + 3x
= 9 + 3.(-3)
= 9 + (-9) = 0
Hence, the solution is (-3, 0)
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Solve the equation x²+10 x+40=5 by completing the square.
So we are provided with the equation,
x2 + 10x + 40 = 5
To simplify it, we will first reorder the terms,
40 + 10x + x2 = 5
Now we will solve the equation to find the value of the unknown variable that we declared here as x.
40 + 10x + x2 = 5
Solving for variable 'x.'
40 + -5 + 10x + x2 = 5 + -5
We will combine similar terms; the variables and the constants.
40 + -5 = 35
35 + 10x + x2 = 5 + -5
Combine the like terms again:
5 + -5 = 0
35 + 10x + x2 = 0
Adding -35 on both sides
35 + 10x + -35 + x2 = 0 + -35
35 + -35 + 10x + x2 = 0 + -35
35 + -35 = 0
0 + 10x + x2 = 0 + -35
10x + x2 = 0 + -35
0 + -35 = -35
10x + x2 = -35
The x term is 10x.
Take half its coefficient (5) to make it a perfect square.
Square it (25) and add it to both sides.
10x + 25 + x2 = -35 + 25
25 + 10x + x2 = -35 + 25
-35 + 25 = -10
25 + 10x + x2 = -10
Perfect square on the left side:
(x + 5) (x + 5) = -10
We can see that the Square root of the right side can’t be calculated.
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The expression 16t² models the distance in feet that an object falls during the first t seconds after being dropped. What is the distance the object falls during each time?
10 seconds
If the expression 16t² models the distance in feet that an object falls during the first t seconds after being dropped, then the distance the object falls during 10 seconds is 1600 foot
Given,
The algebraic expression of the distance in feet that an object falls = [tex]16t^{2}[/tex]
Where t is the time in seconds
Here,
time t = 10 seconds
Substitute the value in the expression
[tex]16t^{2}=16(10)^{2}[/tex]
=1600 foot
Hence, If the expression 16t² models the distance in feet that an object falls during the first t seconds after being dropped, then the distance the object falls during 10 seconds is 1600 foot
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For each rational function, find any points of discontinuity.
y=2x-1 / x²+4
In rational functions, the discontinuities are caused by the denominator terms. Since the denominator of a fraction is non-zero, any term multiplied by the denominator is also non-zero.
To find the discontinuities, we need to factor the polynomial below. Once we have the two binomials, we set each to 0. This way, you can find the value that produces 0 in the denominator.
If x = -2 then (x^2) + 4 is 0.
So, the discontinuities are shown as x = -2
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Please help!! ;-; I cannot figure this out
to get the equation of any straight line, we simply need two points off of it, let's use the points from the table in the picture below.
[tex](\stackrel{x_1}{2}~,~\stackrel{y_1}{4})\qquad (\stackrel{x_2}{5}~,~\stackrel{y_2}{1}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{1}-\stackrel{y1}{4}}}{\underset{run} {\underset{x_2}{5}-\underset{x_1}{2}}} \implies \cfrac{ -3 }{ 3 }\implies -1[/tex]
[tex]\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{4}=\stackrel{m}{-1}(x-\stackrel{x_1}{2}) \\\\\\ y-4=-x+2\implies {\LARGE \begin{array}{llll} y=-x+6 \end{array}}[/tex]
36. Where's the bus? Sally takes the same bus to work every morning. The amount of
time (in minutes) that she has to wait for the bus to arrive is described by the
uniform distribution below.
0
10
1
Height =
10
(a) Explain why this curve satisfies the two requirements for a density curve.
(b) On what percent of days does Sally have to wait more than 8 minutes for
the bus?
(c) On what percent of days does Sally wait between 2.5 and 5.3 minutes for
the bus?
According to the question, every morning Sally takes same bus and she has to wait to arrive with the used method called as uniform distribution.
And the range of the interval is as: min = 0 and max = 10.
For the calculation of the uniform distribution, the height some be constant.
Now, using standard uniform distribution formula:
Mathematically, the function f(x) can be written as:
f(x) = 1/(b - a)
where, 'a' and 'b' are defined intervals. Here, a = 0; b = 10.
Now, to calculate the percentage form the area as a rectangular grid which means:
f(x) = 1/10(5.3 - 2.5) = 2.8/10 = 0.28 = 28 percent.
Now, to know the percentile using above data:
f(x) = 1/(b - a) = 7/10 = 0.7 = 70 percent.
What is uniform distribution?
The uniform distribution is also called as density function which the nature of the two or more than two function should be equal or same.
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A certain species of fish costs $3.49 each. You can spend at most $30: How many of this type of fish can you buy for your aquarium?
Mohammad leaves home walks 5 blocks to the library. he then walks 2 blocks toward home to meet up with his friend. together, he and his friend walk to the library together. how far did mohammad walk?
If Mohammad leaves home walks 5 blocks to the library and he then walks 2 blocks toward home to meet up with his friend and then together, he and his friend walk to the library together, then Mohammad walked for 9 blocks.
To calculate how far Mohammad walked we use addition.
Total blocks Mohammad walked = blocks to the library + blocks towards home to meet up with friend + blocks back to the library together
blocks to the library = 5
blocks towards the home to meet up with friend = 2
blocks back to the library together = 2 (As he walked 2 blocks towards home from the library, he will walk the same number of blocks again to reach the library)
Therefore,
total blocks Mohammad walked = 5 + 2 + 2
total blocks Mohammad walked = 9
Hence, the number of blocks Mohammad walked for is calculated to be 9.
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The equation 8x − 12 = 4x represents two cars traveling in opposite directions, where x represents the distance in miles between the cars. what is the distance, in miles, between the cars? x = 48 x = 30 x = 3 x = 1
Answer:
its option C: x = 3
Step-by-step explanation:
The distance between the cars, x = 3 miles
The equation representing two cars traveling in opposite directions is given by, 8x-12 = 4x,
where 'x' is the distance (in miles) between the cars.
We need to find 'x'.
The equation given is a linear equation in x. So we will solve for 'x'.
8x-12 = 4x
⇒ 8x-4x = 12
⇒ 4x = 12
⇒ x = 12/4
⇒ x = 3
So the distance between the cars = 3 miles
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Solve z3 = 27.
please help due in 1 hour
whoever gets it right gets a crown
Answer:
z = 9
Step-by-step explanation:
Divide both sides by 3 to get z by itself
Some people think that the Spaceship Earth geosphere at Epcot in Disney World in Orlando, Florida, resembles a golf ball. The building is a sphere measuring 165 feet in diameter. A typical golf ball has a diameter of approximately 1.5 inches.
d. What is the ratio of the volumes of Spaceship Earth to a golf ball?
The ratio of the volumes of the Spaceship Earth to a golf ball = 1926949795 : 1
We need to find the volumes of the Spaceship Earth and a golf ball.
Spaceship Earth
Radius, R = 165/2 ft = 82.5 ft
Volume of the Spaceship Earth = [tex]\frac{4\pi R^3}{3}[/tex] = (4 x 3.14 x 561515.625)/3
= 2350878.75 cubic ft.
A golf ball
Radius = 1.5/2 inches = 0.75 inches
1 ft = 12 inches
So 0.75 inches = 0.75/12 = 0.0625 ft.
So radius, r = 0.0625 ft
Volume of a golf ball = [tex]\frac{4\pi r^3}{3}[/tex] = (4 x 3.14 x [tex]0.0625^3[/tex])/3
= 0.00122 cubic ft.
Ratio of the volumes of Spaceship Earth to a golf ball
= 2350878.75:0.00122
= 1926949795 : 1
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An angle is a figure formed by two rays with a common initial point called a
of the angle.
An angle is a figure formed by two rays with a common initial point called a of the angle.
What does a math angle mean?
When two straight lines or rays intersect at a single endpoint, an angle is created. The vertex of an angle is the location where two points come together. The Latin word "angulus," which means "corner," is where the term "angle" originates.What is type of angle ?
There are three different types of angles in geometry: acute angles, which range from 0 to 90 degrees. Right angle, or a 90° angle. A 90–180 degree angle is referred to as an obtuse angle. a 180 degree angle, or a straight angle.What is acute angle?
Less than 90 degrees is the acute angle measurement. Right angles are 90 degrees in length. Angles that are obtuse are more than 90 degrees. Discover the various sorts of angles and examples of each.Learn more about acute angle
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Answers please help me
Answer:
Rita: r - 5= 2c, or r - 5= 2(36), or r - 5 = 72
Cora: (r - 5)/2 = 36
Step-by-step explanation:
Rita had r apps (let r = Rita original apps)She deleted 5 of them so r-5 She now has twice the number of apps as Cora so r-5 = 2c (let c = Cora's total apps) Cora's total apps are 36 so Rita's equation is r-5= 2(36) which means Rita equation for her number of apps is r-5= 72. As for Cora her equation is c= 36 but in relation to Rita's number of apps it's (r-5)/2 = 36
Simplify each expression. 3[2(x-3)+2]+5(x-3)
The simplified form of the given expression 3[2(x - 3) + 2] + 5(x - 3) is 12x - 63.
According to the given question.
We have an expression 3[2(x - 3) + 2] + 5(x - 3).
To simplify the above expression we will use the distributive law and add and subtract the like terms.
Therefore,
3[2(x - 3) + 2] + 5(x - 3)
= 3[2x - 6 + 5x - 15] (distributive rule)
= 3[7x - 21] (adding the like terms)
= 21x - 63
Therefore, the simplified form of the given expression 3[2(x - 3) + 2] + 5(x - 3) is 12x - 63.
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Please can someone help me? It’s due trmw
Answer:
Yes OFC
Step-by-step explanation:
As you can see at the 12-second mark the graph shows 1466 wave length for air so the density of the mass will be subtracted from the height
Type in one, none or infinite
What is 4x -2 = -12
[tex]4x-2=-12\\\\4x=-10\\\\\frac{4x}{4} =\frac{-10}{4} \\\\x=\boxed{-\frac{5}{2} }[/tex]
Wayne bought ______ ounces of blueberries.
Wayne bought 72 ounces of blueberries.
How many ounces did he buy?
A fraction is a non-integer that is made up of a numerator that is divided by a line from the denominator. An example of a fraction is 1/2. 1 is the numerator and 2 is the denominator.
The first step is to determine the total fraction of blueberries that was used.
[tex]\frac{3}{8} + \frac{1}{6} + \frac{5}{12}[/tex]
[tex]\frac{27 + 12 + 30}{72}[/tex] = [tex]\frac{69}{72}[/tex]
Ounces of blueberries he bought = (ounces used ÷ fraction of blueberries used)
69 ÷ [tex]\frac{69}{72}[/tex]
69 x 72/69 = 72 ounces
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Which angles are obtuse?
D
AB
C
Check all that apply.
A. ZMLK
B. ZGFE
C. ZDBC
D. ZOBA
K
G
24
H
PREVIOUS
M
SUBMIT
Answer:
dbc
Step-by-step explanation:
thats the only one that is obtuse
Which of the following functions is graphed below?
Answer:
The answer is A because both equations are true
[tex] a) \: {x}^{3} - 2 = {1}^{3} - 2 \\ = 1 - 2 \\ = - 1 \\ \\ b) \: {x}^{2} + 4 = {1}^{2} + 4 \\ = 1 + 4 \\ = 5 \\ \\ [/tex]
Find the sum: 435,098 + 37,987
Answer:
473085 is the answer
Step-by-step explanation:
Hope it helps you
A(1,7), B(1,2), and C(5,2) area
Use summation notation to write each arithmetic series for the specified number of terms. Then evaluate the sum. 10+7+4+ . . . ; n=5
The summation notion of given series is ∑10-3n , here n starts from 0 and the sum of given arithmetic series is 20.
The given arithmetic series is 10+7+4+ . . .
The summation notion of given series is ∑10-3n , here n starts from 0.
The sum of arithmetic series can be written as,
[tex]S_{n}[/tex] = [tex](n(a_{1} + a_{n}))/2[/tex]
n is the number of terms, [tex]a_{1}[/tex] is the first term and [tex]a_{n}[/tex] is the last term.
We have, n=5, [tex]a_{1}[/tex] = 10
To calculate sum of arithmetic series, we need to find [tex]a_{5}[/tex] .
[tex]a_{5} = a_{1} + (n-1)d[/tex]
d = -3 for the given series. On substituting value of n, [tex]a_{1}[/tex] and d in equation1, we get
[tex]a_{5}[/tex] = 10 + (5-1)(-3)
[tex]a_{5}[/tex] = 10-12 =-2
On substituting values in sum of arithmetic series formula, we get
[tex]S_{5}[/tex] = (5(10 + (-2)))/2 = 20
The summation notion of given series is ∑10-3n , here n starts from 0 and the sum of given arithmetic series is 20.
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(5x + 9) + (8x - 30) = 180
Hello and Good Morning Afternoon:
Let's take this problem step-by-step:
[tex](5x + 9) + (8x-30)=180\\\\\text{Take out the parentheses as they are unnecessary to solve this problem}\\5x + 9+8x-30=180\\\\\text{Combine like terms like variables to variables and constants to constants}\\5x + 8x + 9-30 = 180\\13x - 21=180\\13x = 201\\x = 15.46 \text{ or }\dfrac{201}{13}[/tex]
Answer: 15.46 or 201/13
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