The value of x is -1. Option B
How to determine the valueFrom the information given, we have the equation as;
2x - 10/ 4 = 3x
Where;
the equation models temperature changex represents the difference in degreesLet's simplify the equation
cross multiply
2x - 10 = 3x × 4
2x - 10 = 12x
collect like terms
2x - 12x = 10
-10x = 10
Divide both sides by the coefficient of x
x = 10/ -10
x = -1
Thus, the value of x is -1. Option B
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Determine whether each function is an example of exponential growth or decay. Then, find the y -intercept. y=0.0015(10) x
The function y=0.0015(10)ˣ showcases exponential growth.
What do we mean by exponential function?An exponential function is a mathematical function with the formula f (x) = ax.Where an is the function's base constant and x is a variable.The most common exponential-function base is the transcendental number e, or approximately 2.71828.So,
Given function: y=0.0015(10)ˣ
If we put x = 1 as follows:
y = 0.0015×10y = 0.015Then, if we put x = 2 as follows:
>>y = 0.0015×(10)²>>y = 0.0015×100>>y = 0.15Hence, we see that 0.15 > 0.15.
So, when x increases, y also increases.Therefore, the function y=0.0015(10)ˣ showcases exponential growth.
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Give me a entire guide for 3.82 x 0.63 (my teacher wants me to show work on paper so I need every little step)
The product of 3.82 x 0.63 is 2.4066.
What is multiplication?One of the four fundamental mathematical operations, along with addition, subtraction, and division .In mathematics refers to the continual addition of sets of identical size Multiplication in elementary algebra is the process of figuring out what happens when a number is multiplied by itself. Each of the numbers and is referred to as a factor of the product, which is the outcome of a multiplication is called as multiplication.
Given that,
The product of
3.82
x 0.63
1146
2292 x
000 x x
2.4066
Therefore, the product of 3.82 x 0.63 is 2.4066.
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what is 5 - x = 12?
Answer:
x = -7
Step-by-step explanation:
to solve this first subtract 5 to both sides
5 - x - 5 = 12 - 5
- x = 7
now multiply -1 to both sides
-x(-1) = 7(-1)
x = -7
that is your answeer
Each year a certain amount of money is deposited in an account which pays an annual interest rate of so that at the end of each year the balance in the account is multiplied by a growth factor of . $500 is deposited at the start of the first year, an additional $200 is deposited at the start of the next year, and $600 at the start of the following year. Write an expression for the value of the account at the end of three years in terms of the growth factor . What is the amount (to the nearest cent) in the account at the end of three years if the interest rate is 2%?
The answer to the question is 1350.68
so we are given $500 is deposited at the start of the first year and the interest rate is 2 percent
so the interest =2/100×500 =$10
total amount =$510
we are given that $200 is deposited at the start of the next year, now total amount =$710
interest rate is 2 percent
so the interest =2/100×710 =$14.2
total amount =$724.2
we are given that $600 is deposited at the start of the following year now total amount =1324.2
interest rate is 2 percent
so the interest =2/100×1324.2 =$14.2
total amount =$1350.68
Hence the answer is $1350.68
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What is the quotient ∛8 x⁶ y¹² / √4 x⁴ y⁸ ?
The given quotient ( ∛8 x⁶ y¹² ) / ( √4 x⁴ y⁸ ) is x² y⁴.
This question can be easily solved by using the concept of roots. The two root terms mentioned in the question are ∛8 ( cubic root of 8 ) and √4 (square root of 4 ). This question can be solved in 4 easy steps
Determining the power of the root and find the LCM of those numbers..
In this case, the powers of root for ∛8 and √4 are 3 and 2, respectively. Take LCM of 3 and 2.
LCM = 3 x 2 = 6
=> We get the LCM of 3 and 2 as 6.
Writing the given numbers as fractional powers.
∛8 = 8¹ˡ³ => The power of 8 = 1/3
√4 = 4¹ˡ² => The power of 4 = 1/2
Step 3 : Multiply and divide the powers of the base number ( in this case 8 and 4 ) with a number such that you get the denominator as the LCM's ( in this case 6 )
1/3 can be multiplied and divided by 2 to get the denominator as 6
=> 1 * 2 / 3 * 2 = 2/6
1/2 can be multiplied and divided by 3 to get the denominator as 6
=> 1 * 3 / 2 * 3 = 3/6
Step 4 : Divide the two terms
6√8² x 6√4³ = 6√( 4 x 2 x 4 x 2 / 4 x 4 ) = 6√1 = 1
Also, x⁶ y¹² / x⁴ y⁸ = x² y⁴
Therefore, using the concept of roots and fractions, we get The quotient ( ∛8 x⁶ y¹² ) / ( √4 x⁴ y⁸ ) as x² y⁴.
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Please answer this I have had this assignment open for 4 days, 9 hours, 30 minutes, and 25 seconds
The value of f(0) = 2 and f(-2) = -2 given the equation that we have in this image.
How to solve for the functionThe function that we have here is given as
[tex]\frac{2x-2}{(x + 1)(x-1)}[/tex]
We have to find the value of f(-2)
= 2(-2) - 2 / (-2 + 1) (-2 - 1)
= - 4 - 2 / -1(-3)
= -6 / 3
= -2
Hence f(-2) = -2
Next we have to find f(0)
2(0) - 2 / (0 + 1) (0 - 1)
= -2 / 1 * -1
= -2 / -1
= 2
Hence we can say that the value of f(0) = 2 and f(-2) = -2 given the equation that we have in this image.
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Rick paddles a kayak 20 miles upstream in 4 hours. the return trip downstream takes him 2.5 hours. what is the rate that rick paddles in still water? what is the rate of the current
Rick paddles in still water at a rate of 6.5 mph. The rate of the current is 1.5 mph.
The rate at which an object moves from one point to another is also called speed. It can be measured by dividing the distance over time.
rate = distance/time
Let x = rate at which Rick paddles
c = rate of the current
If Rick paddles a kayak 20 miles upstream in 4 hours, and going upstream means the current is against your direction, then the equation for the travel is:
x - c = 20 miles/4 hours
x - c = 5 (equation 1)
If the return trip downstream takes him 2.5 hours, and downstream means that the current is going the same direction as you are, then the equation for the downstream travel is:
x + c = 20 miles/2.5 hours
x + c = 8 (equation 2)
Using elimination method, solve the two equations.
x + c = 8
x - c = 5
2x = 13
x = 6.5
rate at which Rick paddles = 6.5 mph
Substitute x in equation 1 and solve for c.
x - c = 5 (equation 1)
6.5 - c = 5
c = 6.5 - 5
c = 1.5
rate of the current = 1.5 mph
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Please help
--------------------------
Answer:
Step-by-step explanation:
Answer:
y = 8.40x
y = the total amount that he earned and x = the number of hours that he worked.
Step-by-step explanation:
How do you find all real and complex zeros of a polynomial function?
Real and complex zeros of a polynomial function can be find as:
First convert the polynomial to factored form. set factor equal to zero to solve for the real zerosWhat is Polynomial function?A polynomial function is a function that involves only non-negative integer powers or only positive integer exponents of a variable in an equation like the quadratic equation, cubic equation, etc. For example, 2x+5 is a polynomial that has exponent equal to 1.
Given:
We have to find all real and complex zeros of a polynomial function.
first convert the polynomial to factored form. Once all factors are found, set each individual factor equal to zero to solve for the real zeros
So, according to fundamental theorem of Algebra
It states that every polynomial equation of degree n with complex number coefficients has n roots, or solutions, in the complex numbers.
A complex zero is a complex number that is a zero of a polynomial. For example, i (the square root of negative one) is a complex zero of the polynomial x² + 1, since i² + 1 = 0.
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800/____ =200. Mathematical questions.
Answer:
X = 4
Step-by-step explanation:
Gordon rolls a fair dice 162 times.
How many times would Gordon expect to roll a number greater than 3?
Answer:
81 times.
Step-by-step explanation:
A dice has 6 sides.
The dice is fair, so each side has a 1/6 chance of being rolled.
The are 3 numbers greater than 3 - 4, 5 and 6.
Each of those numbers have a 1/6 chance of being rolled.
Together, their chance of being rolled is:
1/6 + 1/6 + 1/6 = 3/6 = 1/2
The dice is rolled 162 times.
162 x 1/2 = 81
Gordon should roll a number greater than 3 81 times.
Suppose the function f(x)=0.15 x represents the number of U.S. dollars equivalent to x Chinese yuan and the function g(y)=14.07 y represents the number of Mexican pesos equivalent to y U.S. dollars.
b. Find the value in Mexican pesos of an item that costs 15 Chinese yuan.
The value in Mexican pesos of an item that costs 15 Chinese yuan is 0.474 x.
What is the value in Mexican pesos of an item that costs 15 Chinese yuan?
x yuan to y dollars = f(x)
f(x) = 0.15 x
y dollars to x yuan =
y= 0.15 x
x = [tex]\frac{y}{0.15}[/tex]
y dollars to x pesos =g(y)
g(y) =14.07 y
x pesos to y dollars
x = 14.07 y
y = [tex]\frac{x}{14.07}[/tex]
Substituting the result of second into first,
pesos → dollars → yuan
Lets call this function, h(x) = converts x pesos into y yuan.
h(x) = ( [tex]\frac{x}{14.07}[/tex] )/ 0.15
= 0.474 x
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Suppose you pick a marble from a box containing five red and seven blue marbles. You record the color and put the marble back in the box. What is the probability of getting a red marble both times if you do this twice?.
Answer:The probability would be 5 out of 12.
What two functions could represent length and width for given values of x based on the combined function? f(x) = x + 7 and g(x) = x + 3 f(x) = x – 7 and g(x) = x – 1 f(x) = x2 + 7 and g(x) = x3 + 3 f(x) = x – 7 and g(x) = x – 3
The length is greater then width with degree one so f(x) = x + 7 and g(x) = x + 3 represents length and width respectively so option (A) will be correct.
What is a rectangle?A rectangle is a geometrical figure in which opposite sides are equal.
The angle between any two consecutive sides will be 90 degrees.
Perimeter of rectangle = 2( length + width).
A rectangle has two dimensions of size one is greater called length and another is small known as width.
The length and width both are on units of length only such that meter, cm.
In the given option
x + 7 > x + 3 so f(x) will be length and g(x) will be width.
In the option (B) x - 7 < x - 3 so it will not.
Option (C) x² + 7 can not be a unit of length.
Option (D) x - 7 < x - 3 so it will not.
Hence "The length is greater then width with degree one so f(x) = x + 7 and g(x) = x + 3 represents length and width respectively".
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Answer: is A
Step-by-step explanation:
I did that
Solve for x, what is the measure of angle J.
The value of x is 14 and the measure of angle J s 103
How to solve for x and the measure of angle J?The given angles are external angles of parallel lines and a transversal
So, we have:
6x - 7 + 7x + 5 = 180
Evaluate the like terms
13x = 182
Divide both sides by 13
x = 14
Substitute x = 14 in J = 7x + 5
J = 7 x 14 + 5
Evaluate
J = 103
Hence, the value of x is 14 and the measure of angle J s 103
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The values of x and angle J are 14 and 103 degrees respectively.
How to determine the angleIt is important to note that angles on a transversal line are supplementary, that is, they sum up to 180 degrees
Given the angles as;
6x - 77x + 5Equate the angles
6x - 7 + 7x + 5 = 180
collect like terms
6x + 7x = 180 +2
13x = 182
Make 'x' the subject
13x/ 13 = 182/ 13
x = 14
But angle J = 7x + 5 = 7(14) + 5 = 98 + 5 = 103
Thus, the values of x and angle J are 14 and 103 degrees respectively.
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Put the reasons in the correct order that will justify the statements given
The statements that completes the two column proof table, obtained through the use of complementary, and angle addition postulates, arranged using the numbering on the given table are as follows;
Given ‹PQR is a right angleDefinition of Right AnglesAngle addition postulateSubstitutionDefinition of Complementary AnglesGiven ‹TQP and <SQR are complementary angles [tex] \angle PQS \cong \angle TQP[/tex]What are complementary angles?Two angles are said to be complementary angles if they sum up to 90°A right angle is an angle that measures 90°.The angle addition postulate states that the measure of an angle formed by two smaller angles is equal to the sum of the two anglesThe reasons that completes the two column proof table are as follows;
1. ‹PQR is a right angle; Given ‹PQR is a right angle
2. m‹PQR = 90°; Definition of Right Angles
3. m‹PQS + m‹SQR = m<PQR; Angle addition postulate
4. m‹PQS + m‹SQR = 90°; Substitution
5. ‹PQS and ‹SQR are complementary angles; Definition of Complementary Angles
6. ‹TQP and <SQR are complementary angles; Given ‹TQP and <SQR are complementary angles
7 [tex] \angle PQS \cong \angle TQP[/tex]
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Find the inverse of each function. Is the inverse a function? g(x)=3 x³-4
Inverse of the given function F(x) = 3 x³- 4 is F⁻¹(x) = ∛[ ( y + 4 ) / 3 ]
Given is a function of x, F(x) = 3 x³- 4
These question can be solved by following 4 easy steps
Step 1 : Switch the F(x) with the variable y
This implies, F(x) = 3 x³- 4 becomes y = 3 x³- 4
Step 2 : Interchange the variable x and y in the above obtained equation
This implies, from the equation y = 3 x³- 4, we get
x = 3 y³- 4
Step 3 : Solve the new obtained equation for y
This implies, we have to simplify the equation by rearranging the terms to get the equation in terms of the variable x.
x = 3 y³- 4
=> x + 4 = 3 y³
=> 3 y³ = x + 4
=> y³ = ( x + 4 ) / 3
=> y = ∛( x + 4 ) / 3
Hence we obtain the required equation.
Step 4 : Switch the variable y with F⁻¹(x)
This implies, y = ∛( x + 4 ) / 3 becomes F⁻¹(x) = ∛( x + 4 ) / 3
Therefore, we get the inverse of the given function F(x) = 3 x³- 4 as F⁻¹(x) = ∛( x + 4 ) / 3
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A student has taken three math tests so far this semester. His scores for the first three tests were 75,79 , and 83.
a. Suppose his test scores continue to improve at the same rate. What will be his grade on the sixth (and final) test?
Answer:
75
Step-by-step explanation:
there is a pattern in which you can get your answer 75 to 79 you are counting in three 75,76,77,78,79 if you look closely you will see the pattern and you continue to his sixth test and that is how you will get your answer
Here is some information about a group of 20 children.
Boys
Girls
3
2
Left-handed
Right-handed
9
6
A child is chosen at random from the group.
a
What is the probability that the chosen child is a girl?
Give your answer as a fraction.
B
What is the probability that the chosen child is a left-handed girl?
Give your answer
The probability that a girl is chosen is 1/10 and the probability that a left-handed girl is chosen is 11/20.
Probability may be defined as the possibility of occurrence of an event. Probability of an event can be 0 or 1 but it can never be negative. If probability is 0 then the event will not occur and if probability is 1 then the event will definitely occur. Probability is given by the formula.
Probability = Favorable outcomes/Total number of outcomes.
Here, total number of outcomes = 20.
Now in the first case we need to find probability of picking a girl so favorable outcome is 2.
Probability of picking a girl = 2/20
Probability of picking a girl = 1/10
In the second case we need to find probability of picking a left-handed girl, so the favorable outcomes are 2 + 9 = 11 as total number of girls are 2 and total number of left-handed people are 9.
Probability of picking left-handed girl = 9 + 2/20
Probability of picking left-handed girl = 11/20
Thus, probability that a girl is chosen is 1/10 and the probability that a left-handed girl is chosen is 11/20.
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I need help with question 1
harvey porter is a wizard. he waved his wand and made a grain of sand that had a diameter of 0.00002 meters grow to a diameter 0.006meters. approximately how many times as large is the diameter of the grain of sand now as it was before harvey porter waved his wand
Answer:
Step-by-step explanation:
rgvm
Answer:the answer is A haha
Step-by-step explanation:
i just did this kahn academy lesson-
A diver jumps from a cliff that is 48 ½ feet above the surface of the water. She stops descending
12 ½ feet under the water. What was the total distance of her jump?
Answer:
61
Step-by-step explanation:
Solve each equation. Check for extraneous solutions. √3 x+3 -1=x
The extraneous solution for the equation √3 x + 3 - 1 = x is x = - 1 ± √ 3.
We are given an equation:
√3 x + 3 - 1 = x
√3 x + 2 = x
Subtract 2 from both the sides, we get that:
√3 x = x - 2
Raise both sides to the power 2, we get that:
3 x² = x² + 4 - 4 x
2 x² = 4 - 4 x
x² = 2 - 2 x
x² + 2 x - 2 = 0
x = - 1 ± √ 3
Therefore, we get that, the extraneous solution for the equation √3 x + 3 - 1 = x is x = - 1 ± √ 3.
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Solve each inequality using a table.
(Hint: For more accurate results, set ΔTbl=0.001. )
2(4) x⁺³ ≤ 8
After solving the given inequality the answer is x∈(-∞, 1].
What do we mean by inequality?An inequality in mathematics is a relationship that makes a non-equal comparison between two numbers or other mathematical expressions. It is most commonly used to compare the sizes of two numbers on a number line.To solve the inequality:
Given: 2(4)x⁺³≤8
Then,
[tex]\begin{aligned}&2 \cdot 4 x^3 \leq 8\\&8 x^3 \leq 8\\&8 x^3+(-8) \leq 8+(-8)\\&8 x^3-8 \leq 8-8\\&8 x^3-8 \leq 0\\&2^3 \cdot x^3-2^3 \leq 0\\&2^3\left(\frac{2^3 \cdot x^3}{2^3}-\frac{2^3}{2^3}\right) \leq 0\\&8\left(x^3-1\right) \leq 0\\&x^3-1 \leq 0\\&x^3-1^3 \leq 0\end{aligned}[/tex]
Then,
[tex]\begin{aligned}&(x-1)\left(x^2+x+1\right) \leq 0\\&\left\{\begin{array}{l}x-1=0 \\x^2+x+1=0\end{array}\right.\\&\left\{\begin{array}{l}(x-1)+1=1 \\x_1=\frac{-1+\sqrt{1-4}}{2} \\x_2=\frac{-1-\sqrt{1-4}}{2}\end{array}\right.\\&\left\{\begin{array}{l}x-1+1=1 \\x_1=\frac{-1+\sqrt{-3}}{2} \\x_2=\frac{-1-\sqrt{-3}}{2}\end{array}\right.\\&\left\{\begin{array}{l}x=1 \\x_1=\frac{-1+\sqrt{3} \cdot \sqrt{-1}}{2} \\x_2=\frac{-1-\sqrt{3} \cdot \sqrt{-1}}{2}\end{array}\right.\end{aligned}[/tex]
So,
[tex]\begin{aligned}&\left\{\begin{array}{l}x=1 \\x_1=\frac{-1+\sqrt{3} \cdot i}{2} \\x_2=\frac{-1-\sqrt{3} \cdot i}{2}\end{array}\right.\\&\left\{\begin{array}{l}x=1 \\x_1=-\frac{1}{2}+\frac{\sqrt{3}}{2} i \\x_2=-\frac{1+\sqrt{3} \cdot i}{2}\end{array}\right.\\&\left\{\begin{array}{l}x=1 \\x_1=-\frac{1}{2}+\frac{\sqrt{3}}{2} i \\x_2=-\frac{1}{2}-\frac{\sqrt{3}}{2} i\end{array}\right.\\&\left\{\begin{array}{l}x \leq 1 \\x \geq 1\end{array}\right.\end{aligned}[/tex]
So, finally, it gives:
[tex]2 \cdot 4 x^3 \leq 8\\2 \cdot 4 \cdot 0^3 \leq 8\\\begin{aligned}&x \leq 1 \\&x \in(-\infty, 1]\end{aligned}[/tex]
Therefore, after solving the given inequality the answer is x∈(-∞, 1].
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are the expressions (5x + 3) + 3x2 - 2 and (5x + 1) + 3x2 equivalent
Answer:
Yes they are equivalent.
In fact any value of x will make both equations equivalent.
Step-by-step explanation:
What is the volume of this triangular prism?
576 ft ^3
288 ft ^3
34 ft ^3
29 ft 63
The volume of the triangular prism that is 16 ft long is calculated as: 288 ft³
What is the Volume of a Right Triangular PrismA triangular prism has two triangular bases. The volume of the triangular prism can be found by using the formula below:
Volume of triangular prism = 0.5 * b * h * L, where:
the length of the the base of the triangular face = bthe height of the triangular face = h, and,the length is triangular prism = LGiven the parameters below:
Length of the the base of the triangular face (b) = 4 ft
Height of the triangular face (h) = 9 ft
the length is triangular prism (L) = 16 ft
Volume of the triangular prism = 0.5 * 4 * 9 * 16
Volume of the triangular prism = 288 ft³
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find the perimeter of rectangle BCEF. (0,3) (4,-1) (2,-3) (-2,1)
[tex]~\hfill \stackrel{\textit{\large distance between 2 points}}{d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2}}~\hfill~ \\\\[-0.35em] ~\dotfill\\\\ B(\stackrel{x_1}{0}~,~\stackrel{y_1}{3})\qquad C(\stackrel{x_2}{4}~,~\stackrel{y_2}{-1}) ~\hfill BC=\sqrt{(~~ 4- 0~~)^2 + (~~ -1- 3~~)^2} \\\\\\ ~\hfill BC=\sqrt{( 4 )^2 + ( -4)^2}\implies \boxed{BC=\sqrt{32}}[/tex]
[tex]C(\stackrel{x_1}{4}~,~\stackrel{y_1}{-1})\qquad E(\stackrel{x_2}{2}~,~\stackrel{y_2}{-3}) ~\hfill CE=\sqrt{(~~ 2- 4~~)^2 + (~~ -3- (-1) ~~)^2} \\\\\\ ~\hfill CE=\sqrt{( -2)^2 + ( -2)^2}\implies \boxed{CE=\sqrt{8}} \\\\\\ E(\stackrel{x_1}{2}~,~\stackrel{y_1}{-3})\qquad F(\stackrel{x_2}{-2}~,~\stackrel{y_2}{1}) ~\hfill EF=\sqrt{(~~ -2- 2~~)^2 + (~~ 1- (-3)~~)^2} \\\\\\ ~\hfill EF=\sqrt{( -4)^2 + ( 4)^2}\implies \boxed{EF=\sqrt{32}}[/tex]
[tex]F(\stackrel{x_1}{-2}~,~\stackrel{y_1}{1})\qquad B(\stackrel{x_2}{0}~,~\stackrel{y_2}{3}) ~\hfill FB=\sqrt{(~~ 0- (-2)~~)^2 + (~~ 3- 1~~)^2} \\\\\\ ~\hfill FB=\sqrt{( 2)^2 + ( 2)^2}\implies \boxed{FB=\sqrt{8}} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{\LARGE Perimeter} }{\sqrt{32}+\sqrt{8}+\sqrt{32}+\sqrt{8} ~~ \approx ~~ \text{\LARGE 16.97}}[/tex]
Valeria has a points card for a movie theater.
She receives 80 rewards points just for signing up.
She earns 7.5 points for each visit to the movie theater.
She needs 185 points for a free movie ticket.
Write and solve an equation which can be used to determine v, the number of visits
Valeria must make to earn a free movie ticket.
According to the linear equation , the number of visits Valeria must make to earn a free movie ticket is 14.
According to the statement
We have to find that the linear equation.
So, For this purpose, we know that the
The definition of a linear equation is an algebraic equation in which each term has an exponent of one and the graphing of the equation results in a straight line.
From the given information:
She receives 80 rewards points just for signing up.She earns 7.5 points for each visit to the movie theater.She needs 185 points for a free movie ticket.
then
The linear equation becomes:
The equation that can be used to represent the explanation given in the question is : 185 = 80 + 7.5x
Then
Combine similar terms
185 = 80 + 7.5x
185 -80 = 7.5x
105 = 7.5x
x = 105 /7.5
x = 14.
So, According to the linear equation , the number of visits Valeria must make to earn a free movie ticket is 14.
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If I have the numbers 2,5,9,7,4,11 what is the smallest fraction I can make?
Answer:
2/5+9+7+4+11 or 2/11
Step-by-step explanation:
2 is the smallest then we just add everything on the bottom together
Or just 2/11 since 2 is the smallest and 11 is the biggest
If you have a question ask
Use the properties of logarithms to evaluate each expression.
log₂4- log₂16
Using the properties of logarithm the value of the expression is [tex]log_{2}4 - log_{2}16 = -2[/tex]
We have been given two logarithm terms that is the first term is [tex]log_{2}4[/tex] and second term is [tex]log_{2}16[/tex].
The propertied of logarithm that we are going to use are
[tex]log a^{m} = m * log a[/tex] and [tex]log_{a} a = 1[/tex]
First we will find the value of the two terms and operate the above mentioned properties of logarithm to obtained the values of the logarithm.
Thus,
[tex]log_{2}4 = log_{2}2^{2} \\ = 2* log_{2}2\\ = 2*1\\ = 2[/tex]
Similarly,
[tex]log_{2}16 = log_{2}2^{4} \\ = 4* log_{2}2\\ = 4*1\\ = 4[/tex]
Now subtracting both the terms by substituting its respective values which we have calculated above, we get
[tex]log_{2}4 - log_{2}16 = 2 - 4 = -2[/tex]
Thus the value of the expression is [tex]log_{2}4 - log_{2}16 = -2[/tex]
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