Answer:
x = 24
Step-by-step explanation:
[tex]\frac{x}{8}[/tex] = 3 ( multiply both sides by 8 to clear the fraction )
x = 8 × 3 = 24
Answer: 24
Step-by-step explanation:
x/8 = 3
x = 3x8
x = 24
Find the geometric mean between pair of numbers.
8√2/3 and 4√2/3
The geometric mean between pair of numbers 8√2/3 and 4√2/3 is 2.67
We know that for a sequence of numbers x1, x2,.., xn
The formula of geometric mean is,
[tex]\Pi=\sqrt[n]{x_1.x_2.x_3...x_n}[/tex]
In this question, we have been given two numbers 8√2/3 and 4√2/3
We need to find the geometric mean between pair of numbers, 8√2/3 and 4√2/3.
Using the formula for the geometric mean,
[tex]\Pi=\sqrt[n]{x_1.x_2.x_3...x_n}[/tex]
In this question, we have two numbers.
So, the value of n is 2.
[tex]\Pi=\sqrt{\frac{8\sqrt{2} }{3} \times \frac{4\sqrt{2} }{3}} \\\\\Pi=\sqrt{\frac{32\times 2}{9} } \\\\\Pi=\sqrt{\frac{64}{9} } \\\\\Pi=\frac{8}{3}\\\\\Pi=2.67[/tex]
Therefore, the geometric mean between pair of numbers 8√2/3 and 4√2/3 is 2.67
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Express the interval using two different representations.
x<-11 \text{ or } x>0
x<−11 or x>0
The interval using two different representations are (-∝, 11) ∪ (0, ∝) and {x | x < −11 or x > 0}
How to express the interval using two different representations?The interval is given as
x < −11 or x > 0
Inequalities like < and > are represented using the parenthesis ( and )
Also, the term "or" mean union and it is represented using ∪
So, one representation of the interval can be represented as
(-∝, 11) ∪ (0, ∝)
Another representation of the interval is {x | x < −11 or x > 0}
Hence, the interval using two different representations are (-∝, 11) ∪ (0, ∝) and {x | x < −11 or x > 0}
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Rogelio has completed a total of 168 pull-ups in gym class this year. The number of pull-ups Rogelio has completed is 30% of the number of the pull-ups Armando has completed. What is the minimum number of additional pull-ups Rogelio must complete in order for his number of pull-ups to be greater than Armando's if Armando does not complete another pull-up all year?
Answer:
561
Step-by-step explanation:
168/3=56 (10 percent of armandos pull ups)
56 x 10 = 560 (100 percent of armandos pull ups)
Now it is equal. We are looking for greater than armando. You would need 561 pull ups to have more
HELP
A person makes an overseas phone call. The telephone company charges 58 cents for the first minute and then 66 cents for each minute there after. Because it's an overseas phone call, there is also a 50c ent service charge. If the phone call cost $14.28, how many minutes did this person talk? The person talked for ____ minutes.
Answer:
Step-by-step explanation:
58 + 66(x-1) + 50 = 1428cents
66(x-1) + 108 = 1428
66(x-1) =1320
x-1 = 20
x = 21 mins
please factor 27x^6 y^9 - 64 and please show me the steps to complete it
Answer:
Hello,
Step-by-step explanation:
Do you remember the formula
[tex]\boxed{a^3-b^3=(a-b)(a^2+ab+b^2)}\\\\\\27x^6y^9-64=(3x^2y^3)^3-4^3\\\\=(3x^2y^3-4)((3x^2y^3)^2+(3x^2y^3*4)+4^2)\\\\\\=(3x^2y^3-4)(9x^4y^6+12x^2y^3+16)\\[/tex]
The midpoint of QR is M(2, −5). One
endpoint is R(8, -1). Find the
coordinates of the other endpoint Q.
Write the coordinates as decimals or
integers.
Q=
Answer:
Q= ( -4 -9)
Step-by-step explanation:
Using the midpoint formula
X1 + X2 Y1 + Y1
----------, ---------
2. 2
The midpoint QR = (2, -5) and R = (-8, 1) Q =>(x, y)
= x + 8. y - 1
------------ = 2 and -------- = -5
2 2
=> (4 = x + 8) and( -10= y-1)
=> 4 -8 = x and -10+1= y
Q(x, y) = (-4, -9)
Find the 32 nd term of each sequence. 9,4,-1,-6,-11, ...........
The 32th term of the arithmetic sequence AP is found to be -146.
What is the definition of arithmetic progression?An arithmetic progression (AP) is a succession in which each successive term has the same distinctions.
Each term in an arithmetic progression (except the first) is derived by adding a certain number to a term before the first one.The following arithmetic progression formulas are frequently used to solve various AP problems for the initial term 'a' of an AP along with the common difference 'd.'The common difference of AP is 'd': d = a2 - a1 = a3 - a2 = a4 - a3 =...... = a - an-1. nth term of an AP: an = a + (n - 1) dThe sum of an AP's n terms is Sn = n/2(2a+(n-1)d) = n/2(a + l), where l is the final term of the AP.Now, to answer the question;
The given sequence of the numbers is-
9,4,-1,-6,-11, ...........
There are total 32 terms in the series for which we have to find 32nd number.
Let the first term be 'a₁' = 9.
Let the second term be 'a₂' = 4
Let the third term be 'a₃' = -1.
The common difference of between the two consecutive terms is equal of an AP is 'd'.
d = a₂ - a₁
Substitute the values in the above equation;
d = 4 - 9
d = -5
Now, the 32th term is calculated by the nth term formula;
nth term of an AP: an = a + (n - 1) dWhere, total number of terms is; n = 32First term is a = 9common difference d = -5Now, substitute all the value in the formula,
a₃₂ = a + (n - 1) d
a₃₂ = 9 + (32 - 1)(-5)
a₃₂ = 9 - 160 + 5
a₃₂ = -146.
Therefore, the 32nd term of the arithmetic sequence is estimated as -146.
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Does the infinite series converge or diverge? If it converges, what is the sum?
b. 1/3 - 1/9 + 1/27 - 1/81 + . . . .
A geometric series exist as the totality of an infinite number of terms that contain a constant ratio between consecutive terms.
The sum of the infinite series is 1/4.
What is an infinite geometric series?The result of an endless geometric sequence exists an infinite geometric series. There would be no conclusion to this series. There would be no conclusion to this series. The infinite geometric series has the general form a1 + a1r + a1r² + a1r³+…, where r is the common ratio and a1 is the first term.
The equation be S = a1/(1-r), where s is the total, a1 is the series first term, and r is the common ratio, is a general formula for calculating the sum of an infinite geometric series. The formula a2/a1, where a2 is the second term in the series and a1 is the first term in the series, can be used to determine the common ratio.
Given: a(first term) = 1/3
r(common ratio) = a2/a1
= (-1/9)/(1/3) = -1/3
Since | r | ∠ 1, the infinite series converges.
The sum of infinite geometric series is:
S∞ = a/(1 - r); -1 ∠ r ∠1
S∞ = (1/3) / (1+(1/3)) = 1/4
The sum of the infinite series is 1/4.
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Which set of numbers cannot be the measures of the sides of a triangle?
A 10,11,20
B 14,16,28
C 35,45,75
D 41,55,98
Option D is the correct answer.
Triangle Inequality Theorem states that the sum of two side lengths of a triangle is always greater than the third side.
If this is true for all three combinations of three combinations of side lengths.
i.e., a + b > c , b + c > a and c + a > b then the length form a triangle.
(A) 10 + 11 = 21 > 20
And 11 + 20 =31 > 10
And, 20 + 10 = 30 > 11
So, it forms a triangle
(B) 14 + 16 = 30 >28
And 16 + 28 = 44 >14
And 28 + 14 = 42 > 16
So, it forms a triangle
(C) 35 + 45 = 80 > 75
And 45 + 75 = 120 > 35
And 75 + 35 = 110 > 45
So, it forms a triangle
(D) 41 + 55 = 96 < 98
It does not form a triangle
because sum of two sides lengths is less than the third side length.
Hence, Option D is the correct answer
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Determine a base and a height for each shap
Write a two-column proof
Given: ∠P ≅ ∠T, ∠S ≅ ∠Q TR ≅ PR, RP ≅ RQ RT ≅ RS PQ ≅ TS
Prove: Δ P R Q ≅ ΔT R S
ΔPRQ ≅ ΔTRS under both (side-side-side) SSS condition and (angle-side-angle) ASA condition.
What exactly does "triangle congruency" mean?If all three corresponding sides are equal and all three corresponding angles are equal in measure, two triangles are said to be congruent.These triangles can be moved, rotated, flipped, and turned to look exactly the same.They will coincide if they are repositioned.Two triangles are congruent if they satisfy the five congruence conditions.They are the side-side-side (SSS), the side-angle-side (SAS), the angle-side-angle (ASA), the angle-angle-side (AAS), and the right angle-hypotenuse-side (RHS).
So,
Given: ∠P ≅ ∠T, ∠S ≅ ∠Q, TR ≅ PR, RP ≅ RQ, RT ≅ RS, PQ ≅ TS
To Prove: Δ PRQ ≅ ΔTRS
∠P ≅ ∠T∠S ≅ ∠QTR ≅ PRRP ≅ RQRT ≅ RSPQ ≅ TSSo, ΔPRQ ≅ ΔTRS under both SSS condition and ASA condition.
Therefore, ΔPRQ ≅ ΔTRS under both SSS condition and ASA condition.
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Find the area of shaded region in the given figure. if base 6cm hight 12 cm and side 7 cm
Answer: Area, S = 36 [tex]cm^{2}[/tex]
Step-by-step explanation:
What is the Area of a Triangle?
The area of a triangle is defined as the total region that is enclosed by the three sides of any particular triangle. Basically, it is equal to half of the base times height, i.e.
A = 1/2 × b × h.
Given data,
Area of shaded triangle S = 1/2 *b*h
We can write,
Area = S
Base = b
Height = h
we get,
Base b = 6cm
Height h = 12cm
h=12 cm height of isosceles triangle ,
Area = 1/2 * b*h
We can substitute b and h values,
Area= 1/2* 6 * 12
= 1/2 * 72
= 36
So, Area, S = 36 [tex]cm^{2}[/tex]
Therefore,
Area, S = 36 [tex]cm^{2}[/tex]
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In 2006, a group of art museums collaborated to form the West Texas Triangle to promote their collections. This region is formed by the cities of Odessa, Albany, and San Angelo. The approximate coordinates of each location, respectively, are 31.9°N102.3°W,32.7°N99.3°W and 31.4°N100.5°W . Write a coordinate proof to prove that the West Texas Triangle is approximately isosceles.
We have proved that the West Texas Triangle formed is an isosceles triangle.
The approximate coordinates of three locations is given.
We have to prove that the West Texas Triangle is an isosceles triangle.
What is a triangle ?
A triangle is a 3-sided shape. There are three sides and three angles in every triangle, some of which may be the same.
As per the question ;
The West Texas Triangle is an isosceles triangle.
1st location has coordinates (31.9°N , 102.3°W)
2nd location has coordinates (32.7°N , 99.3°W)
3rd location has coordinates (31.4°N , 100.5°W)
Let's represent 1st location as A , 2nd location as B and 3rd as C.
Let's check it.
Using the distance formula ;
AB = √ [ (32.7 - 31.9) ² + (102.3 - 99.3)²]
AB = √ (0.8² + 3²)
AB = √9.64
AB = 3.10
Similarly ;
BC = √ (1.3² + 1.2²)
BC = √3.13
BC = 1.8
And
AC = √(0.5² + 1.8²)
AC = 1.8
The two sides are of equal length , so , we can conclude that this is an isosceles triangle.
Thus , the West Texas Triangle formed is an isosceles triangle.
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Tetsuya and Mason want to determine the probability that a red marble will be chosen out of a bag of 4 red, 7 blue, 5 green, and 2 purple marbles. Is either of them correct? Explain your reasoning.
Both Tetsuya and Mason are interested in finding the probability that a red marble will be chosen out of the bag. We will decide if either of them is correct.
In statistics, what does a probability mean?
The probability serves as a gauge for how likely an event is to occur. It gauges how likely an event is. P(E) = Number of Favorable Outcomes/Number of Total Outcomes is the formula for probability.Tetsuya P( R) = 4/17
Mason P( R ) = 1 - 4/18
P ( R) = Favorable outcome/ possible outcome
The number of favorable outcomes is the number of red marbles in the bag, so it is equal to 4. The number of possible outcomes is the number of all marbles in the bag. Let's find it.
4 + 7 + 5 + 2 = 18
We have enough information to find the probability that a red marble will be chosen P(R).
P( R) = 4/18
Tetsuya used the wrong number of possible outcomes in the denominator. Let's look at Mason's solution. They wanted to use the probability of complementary events. However, they found the probability that a selected marble is not red.
Mason P( R ) = 1 - 4/18
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Solve: x+2/x-4<0
A –4 < x < –2
B –2 < x < 4
C –2 < x < –4
D –4 < x < 2
Answer:
B. -2 < x < 4
Step-by-step explanation:
The function is (x +2)/(x-4) and we are asked to determine the x interval when the inequality (x +2)/(x-4) < 0 is satisfied
1. Find the critical points
The critical points are
x = - 2 when the numerator becomes -2 + 2 = 0, and f(x) = 0
and
x = 4 when the denominator becomes 4 - 4 = 0 and (x + 2)/0 is undefined
So critical points are -2 and 4
2. Use these critical points to divide the number line into intervals
The intervals are -∞ < x < -2, -2 < x < 4 and 4 < x < ∞
these can be re-written as x < -2, -2 < x < -4 and x > 4
3. For each of these intervals take a test point and see if it satisfies that inequality
(a) -∞ < x < -2 Take x = -3 which is less than -2
We get f(-3) = (-3 + 2)/(-3 -4) = -1/-7 which is + 1/7 and does not satisfy the (x+2)/(x-4) < 0 inequality.
So we can discard this interval
(b) For interval -2 < x < 4, Let's take x = 0
(0+2)/(0-4) = 2/(-4) = -1/2 = -0.5 which does satisfy the inequality
(x+2)/(x-4) <0, so this is a valid interval
(c) For interval x > 4, take x = 5
(x+2)/(x-4 ) = (5 + 2)/(5-4) = 7/1 = 7 and does not satisfy (x+2)/(x-4 ) < 0
So the interval which satisfies the inequality is -2 < x < 4
describe the transformation then graph f(x)=x+4; g(x)=f(x-2)
Answer:
Use This it will help
Step-by-step explanation:
What is the answer to this problem ?
Answer:
2(x + 6) = 38
Step-by-step explanation:
First, we choose a variable to represent the unknown number.
1. Let x = the unknown number.
Then, we translate the sentence into an equation using the variable we chose.
"Twice the sum of six and a number is 38."
We do it piece by piece:
"the sum of six and a number": x + 6
"Twice the sum of six and a number": 2(x + 6)
"Twice the sum of six and a number is 38.": 2(x + 6) = 38
Now we have an equation that represents the sentence.
2(x + 6) = 38
In a direct variation, y=12when x=3.Write a direct variation equation that shows the relationship between x and y
The direct variation equation between x and y is 4x = y.
Here, we are given that x and y are in direct variation. In other words, this means that x and y are directly proportional to each other.
Thus, if k is a constant term, then the relation between x and y can be represented as-
x = ky
Now, we are given that if y = 12, x = 3
⇒ 3 = 12k
12k = 3
k= 3/12
k= 1/4
Thus, we found the value of k, the relation will become-
x = y/4
or 4x = y
Thus, the direct variation equation between x and y is 4x = y.
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What is the distance between 4/5 and -1/6 on a number line?
The distance between the point [tex]\frac{4}{5}[/tex] and [tex]\frac{-1}{6}[/tex] is [tex]\frac{9}{10}[/tex] or 0.9.
Given point are [tex]\frac{4}{5}[/tex] and [tex]\frac{-1}{6}[/tex]
In decimal form,
[tex]\frac{4}{5}=0.8[/tex]
[tex]\frac{-1}{6} =-0.1[/tex]
Plot that two point on a number line.
Number line means a straight line with numbers arranged at equal segments or intervals throughout its length is known as a number line. A number line is often shown horizontally and can be extended indefinitely in any direction.
In the figure we can see the number plotting.
The points between those points is the distance between the [tex]0.8[/tex] and [tex]-0.1[/tex].
Therefore, the distance between the point [tex]\frac{4}{5}[/tex] and [tex]\frac{-1}{6}[/tex] is [tex]\frac{9}{10}[/tex] or 0.9.
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The points (-2, 8) and (r, − 1) lie on a line with slope -3. Find the missing coordinate r.
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solve solve log3 (3x-2) - log3 (x+2) = 2
The solution to the logarithmic equation is - 10 / 3.
How to simplify a logarithmic equation to solve for a variable
Logarithms are examples of trascendent functions, that is, function that cannot be described in algebraic terms. Herein we must take advantage of logarithm properties to solve for x in the expression given. The complete procedure is shown below:
㏒₃ (3 · x - 2) - ㏒₃ (x + 2) = 2 Given
㏒₃ [(3 · x - 2) / (x + 2)] = 2 Logarithm of a division of functions
(3 · x - 2) / (x + 2) = 3² Definitions of power and logarithm
(3 · x - 2) / (x + 2) = 9 Definition of power
3 · x - 2 = 9 · (x + 2) Definition of division / Compatibility with multiplication / Existence of the multiplicative inverse / Associative and modulative properties
3 · x - 2 = 9 · x + 18 Distributive property
- 20 = 6 · x Compatibility with addition / Existence of the additive inverse / Associative, commutative and modulative properties
6 · x = - 20 Symmetric property
x = - 20 / 6 Definition of division / Compatibility of multiplication / Existence of the multiplicative inverse / Associative, commutative and modulative properties
x = - 10 / 3 Simplification of fractions / Result
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True or False?
4 and 1/4 are opposites
Answer:
I want to say False.
Step-by-step explanation:
I would think that the opposite of 4 would be -4.
Good luck! :)
Answer:
True
Step-by-step explanation:
4 = 4/1 1/4 is the reciprocal or the opposite of 4
What is the width of the prism?
4 ft
w
2 ft
Volume = 24 cubic feet
Answer: 3 ft
Step-by-step explanation:
l=length. w=width. h=height. V=volume
V=l*w*h
24=4*w*2
24=8*w
8w=24
w=3 ft
Evaluate each expression for x=-2,0,1 , and 4.
3x+1
The value for x = -2,0,1 and 4 is -5,1,4,13 respectively.
What does finding x's value mean?
To "solve for x" is to determine the value of x that would result in the equation being true. Think about the following equation: x plus 1 = 3. You would have to figure out a value for x such that it produces three when one is added in order to try to solve it.
For x = -2,
3x+1
= 3(-2)+1
= -6 +1
= -5
For x = 0
3x+1
= 3(0) + 1
= 1
For x = 1
3x+1
= 3(1) + 1
= 4
For x = 4
3x+1
= 3(4) + 1
= 13
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Carolyn needs to figure out the missing properties used to simplify the expression below
Expression Property used
Step 1 1 x 3/2 x (-5) x 3 x (-4) Inverse Property of Multiplication
Step 2 1 x (-4) x 3/2 x (-5) x 3 Associative Property of Multiplication
Step 3 1 x [ (-4) x 3/2 ] x (-5) x 3 Commutative Property of Multiplication
Step 4 1 x [-6] x (-5) x 3 Identity Property of Multiplication
Step 5 -6 x (-5) x 3
What is Inverse property of multiplication?The inverse property of multiplication refers to multiplying a number with it's reciprocal. This is applied while transforming from division to multiplication as division is the inverse of multiplication.
What is Associative Property of Multiplication?Associative property of multiplication is applied while multiplying several values, Hence rearranging the terms will still give same answer.
What is Commutative Property of Multiplication?This property has it that the order of the multiplication do not matter, hence multiplication can start with any order.
What is Identity Property of Multiplication?This property refers to multiplication of a value with one, such multiplication usually return same value as the product.
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A local grocery store sells 32.5 oz bags of mixed nuts that contain 56% peanuts. To make their product they combine Planters mixed nuts which contain 50% peanuts and Emerald mixed nuts which contain 60% peanuts. How much of each do they need to use
The local grocery store mixed 13 oz of planters mixed nuts with 19.5 oz of emerald mixed nuts to get 32.5 oz bags of mixed nuts that contain 56% peanuts.
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
Let x represent the amount of planters mixed nuts and y represent the amount of emerald mixed nuts, hence:
x + y = 32.5 (1)
Also:
0.5x + 0.6y = 0.56(32.5) (2)
From both equations:
x = 13, y = 19.5
The local grocery store mixed 13 oz of planters mixed nuts with 19.5 oz of emerald mixed nuts to get 32.5 oz bags of mixed nuts that contain 56% peanuts.
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The scale of the drawing was 1 inch : 5 yards If the actual width of a naborhood park is 70 yards how wide is the park in the drawing
Based on the scale of the drawing, and the actual width, the width of a park in a drawing would be 14 inches.
What is the width?A single inch of the width of a park in a drawing, is 5 yards of the width of the actual park.
This means that a single inch equates to 5 yards.
If there were therefore 70 yards in the actual park, the width of the drawing is:
= 70 / 5
= 14 inches
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Please help!! Part 2 Use the vertical line test to determine if each graph shows a relation that is a function.
Answer:
first graph = NOT a functionsecond graph = is a function===============================================
Reason:
In the first graph, it is possible to draw a single vertical line through more than one point on the blue graph. For instance, draw a vertical line through 1 on the x axis.
Because this happens, we consider the graph to "fail the vertical line test". This leads to the graph not being a function.
A function is only possible if any input in the domain leads to exactly one and only one output.
The input x = 1 leads to multiple outputs y = 3 and y = -3 simultaneously.
---------------------------
On the other hand, the second graph doesn't have this issue happening. It's impossible to draw a single vertical line through more than one point on the blue graph.
Therefore, this graph passes the vertical line test and it is a function. Whatever x input you pick, it leads to one y output only.
Please help me please help me
Answer: 1st option
Step-by-step explanation:
Black to Red is the transformation
C to C'
I to I'
Q to Q'
G to G'
1st, graph is moved up by 1 unit(+1 in x direction)
Then, graph is moved to right by 5 units(+5 in y direction)
(1, 5) is the change ==> 1st option
Find the two solutions to the equation below.
(x-7)(x - 5) = 0
Answer: x = 5, 7
Step-by-step explanation:
This equation is already factored for us, so we can split it into two separate equations set equal to 0 and solve for x.
Given:
(x - 7)(x - 5) = 0
Equation #1:
x - 7 = 0
x = 7
Equation #2:
x - 5 = 0
x = 5
Solution:
x = 5, 7
Answer:
x = 5, x = 7
Step-by-step explanation:
(x - 7)(x - 5) = 0 ← in standard factored form
equate each factor to zero and solve for x
x - 7 = 0 ⇒ x = 7
x - 5 = 0 ⇒ x = 5