The expression that have 2\3 as a product are 4/5 × 5/6 and 6/7 × 7/9 which is option (a) and (e) .
An expression in maths could be a sentence with a minimum of 2 numbers/variables and a minimum of one maths operation in it.An expression could be a combination of terms that are combined by victimization mathematical operations like subtraction, addition, multiplication, and division.(a) 4/5 × 5/6 = 20/30
= 2 /3
(b) 7/8 × 9/10 = 63 / 80
(c) 1/3 × 2/3 = 2 /9
(d) 3/4 × 7/12 = 21 / 48
= 7 / 16
(e) 6/7 × 7/9 = 42 /63
= 6 / 9
= 2 / 3
Only the expression (a) and (e) have 2\3 as a product.
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The complete question is given below :
Choose all the expressions that have 2\3 as a product.
(a) 4/5 × 5/6
(b) 7/8 × 9/10
(c) 1/3 × 2/3
(d) 3/4 × 7/12
(e) 6/7 × 7/9
-6. Given: 9w2 – 8w +6w4 – 5a) Write the polynomial in descending order.b) What is the degree of the polynomial?c) What is the leading coefficient?d) What is the coefficient of w?e) Evaluate the expression if w=2.
Given:
\(9w^2-8w+6w^4-5\)a)
We need to write the polynomial in descending order.
Recall that descending order is basically when the power of a term decreases for each succeeding term.
The power of w decreasing from 4 to 0 is the descending order
Answer:
\(6w^4+9w^2-8w-5\)b)
We need to find the degree of the polynomial.
Recall that the degree of the polynomial is the greatest power of the variable.
The variable of the given polynomial is w.
The greatest power of the variable w in the given polynomial is 4.
Answer:
The degree of the polynomial is 4.
c)
We need to find the leading coefficient.
Recall that the leading coefficient is the coefficient of the term of the highest degree in a given polynomial.
The highest degree in a given polynomial is 4.
\(\text{ The term of the highest degree in a given polynomial }6w^4.\)The coefficient of the term of the highest degree in a given polynomial is 6.
Answer:
The leading coefficient is 6.
d)
We need to find the coefficient of w.
Recall that the coefficient of w is the number multiplied by the variable.
In the given polynomial w is multiplied by -8.
Answer:
The coefficient of w is -8.
e)
We need to evaluate the expression if w=2.
Substitute w=2 in the given polynomial.
\(9(2)^2-8(2)+6(2)^4-5\)\(=9(4)-8(2)+6(16)-5\)\(=36-16+96-5\)\(=111\)Answer:
The given expression is 111 if w =2.
100 POINTS!!! must be correct!
Select the correct answer. Which expression will you generate if you combine the like terms in 5x + 6x + y + y + 3y + 4 + 6 + 2?
A. 5(x + y + 7)
B. 5x + y + 2
C. 11x + 5y + 12
D. x + 8y – 12
E. 2x + 4y – 10
Answer:
\(we \: have \: 5x + 6x + y + y + 3y + 4 + 6 + 2 \\ x \: terms = 5x + 6x = 11x \\ y \: terms = y + y + 3y = 5y \\ constant = 4 + 6 + 2 = 12 \\ then \: 11x + 5y + 12 \\ option \: (c) \\ thank \: you\)
Answer:
C. 11x + 5y + 12
Step-by-step explanation:
You have to combine all like terms For example:
5x + 6x + y + y + 3y + 4 + 6 + 2
First add 5x and 6x
5x + 6x = 11x
Then you get:
11x + y + y + 3y + 4 + 6 + 2
Next add all of the y's
y + y + 3y = 5y
then you get
5x + 6x + 5y + 4 + 6 + 2
Finally add 4, 6, and 2
4 + 6 + 2 = 12
So your final solution should be 11x + 5y + 12
|x+3|, if x>5
I really need help were supposed to be using the absolute value!! If you can add an explanation that would be great!!
Answer:
Step-by-step explanation:
Suppose x+3 < 0. Subtract 3 from both sides of the inequality.
x < -3
So, x+3 is negative when x < -3. When x>5,
x+3 > 8, which is positive, so the absolute value function has no effect.
|x+3| > 8
no link or bot answer the question
Answer:
1
Step-by-step explanation:
Answer:
answer is 1
Step-by-step explanation:
5/1×5
so5/5
1
I don’t understand this question can someone please help
Answer:
the second option listed
(A = 53 degrees)
(a = 13.3)
(c = 16.6)
Step-by-step explanation:
SOH CAH TOA
(sin = opposite / hypotenuse)
(cos = adjacent / hypotenuse)
(tan = opposite / adjacent)
For this question, you are provided an angle (37), and its opposite (10)
so, we can solve for either sin or tan first.
tan = opposite / adjacent
tan 37 = 0.7535540501
0.7535540501 = 10/a [multiply by a]
0.7535540501a = 10 [divide by [0.7535540501]
a = 13.2704482163
rounded to the nearest tenth, a = 13.3
we know that the three angles shown here must add up to 180
so,
90 + 37 + A = 180
127 + A = 180
- 127 - 127
A = 53
--this is enough information to answer, but I will also solve side c to prove my answer
c = hypotenuse
a²+ b²=c²
[13.3]² + [10]² = c²
176.89 + 100 = c²
276.89 = c²
√276.89 = √c²
16.6400120192 = c
c = 16.6 (rounded to the nearest tenth)
**I am assuming this is a right triangle, otherwise there wouldn't be a matching answer
I need help converting 3/5 into a decimal
Answer:
0.6
Step-by-step explanation:
3 divided by 5
HAYUDAAA PORCA HELP ME
Answer:
???
Step-by-step explanation:
2r + 2 = 10
r=?
Hurry Please!!
Answer:
2r+2=10
Step-by-step explanation:
R is 4
u would do 2*4
that equals 8
next add 2+8
you get 10
box with 2 red and 1 blue ball pick one randomly and replace with blue what is the expected number to get rid of all red balls
The expected number is 1, that means that if you randomly pick one ball and replace it with a blue ball, then you have a greater than 50/50 chance of eliminating all the red balls.
The expected number of blue balls needed to eliminate all red balls is calculated using the formula\(n = (x-1)/(y-1)\). In this scenario, x = 3 (the total number of balls in the box) and y = 2 (the number of red balls). Therefore, n = (3-1)/(2-1), which equals 1. So, the expected number of blue balls needed to eliminate all red balls is 1.
To illustrate this, imagine a box with 3 balls: 2 red and 1 blue. If you randomly pick one ball and replace it with a blue ball, then you have a 50/50 chance of eliminating all the red balls. If the ball you pick is red, then you need to pick another ball and replace it with a blue ball to get rid of the remaining red ball. This means that you need a total of 2 blue balls to get rid of all the red balls. However, since the expected number is 1, that means that if you randomly pick one ball and replace it with a blue ball, then you have a greater than 50/50 chance of eliminating all the red balls.
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complete question
What is the expected number of blue balls needed to eliminate all red balls from a box with 3 balls, 2 of which are red?
HELPP!!!
The area of the figure is ____ square units.
Answer:
The answer is 132 square units
Step-by-step explanation:
Cutting the shape
we have two trapeziums
A=(area of small +Area of big)Trapezium
A=1/2(3+9)8 + 1/2(9+12)8
A=1/2×12×8 + 1/2×21×8
A=12×4 + 4×21
A=48+84
A=132 square units
Find the number which has the greatest difference when its square is subtracted from this number.
The number is 1.
What is a square number?when a number multiplies itself the result is said to be the square of that number.
Analysis:
The square of 1 remains 1.
if you subtract the square of 1 from 1, you will have 0.
and zero is the greatest difference in this regard because every other number gives a negative result.
Example, 3 is a number, the square of 3 is 9. and 3 - 9 = -6 smaller than 0.
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0.5 is the number.
Explanation:Let the number be x,
When this number is subtracted from its square
x - x²
In order to find the greatest number, use vertex formula: x = -b/2a
Identify the following: a = -1, b = 1, c = 0
Hence solve, x = -1/2(-1) = -1/-2 = 1/2
So, the number is 0.5
Difference: (0.5) - (0.5)² = 0.5 - 0.25 = 0.25
Which of the following statements is true regarding that equation |x+3|-2=k?
The true statement is if k = - 1 there are solutions, but if k = - 3 there are no solutions
How to determine which statement is true regarding the equation |x+3|-2=k?
Given: |x+3|-2=k
Below are rules for solving absolute value equations:
1. If p is positive and |y| = p, then
x = p OR y = -p
(two equations are set up)
2. If p is negative and |y| = p, then
No solution
3. If p is zero and |y| = p, then
One solution
Using the rules:
|x+3|-2=k
when k = -1
|x+3|-2= -1
|x+3| = 1
Rule 1 is applicable here. Thus, there are solutions
when k = -3
|x+3|-2 = -3
|x+3| = -1
Rule 3 is applicable here. Thus, no solution
Therefore, if k = - 1 there are solutions, but if k = - 3 there are no solutions. The 2nd option is the true statement
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A ladder of length (2x+6) feet is positioned x feet from a wall. If the ladder reaches a height of (2x+4) feet along the wall. Find the longest leg.
A. 10ft
B. 24ft
C. 26ft
D. 13cm
Using the Pythagoras theorem, the longest leg has the length of 24 feet.
Given that,
A ladder of length (2x+6) feet is positioned x feet from a wall.
Height of the ladder = (2x + 6) feet
Distance of ladder from the wall = x feet
Height of the wall that the ladder is placed = (2x + 4) feet
These three lengths form s right triangle where (2x + 6) feet is the hypotenuse.
Longest leg is (2x + 4) feet
Using the Pythagoras theorem,
(2x + 6)² = (2x + 4)² + x²
4x² + 24x + 36 = 4x² + 16x + 16 + x²
4x² + 24x + 36 = 5x² + 16x + 16
x² - 8x - 20 = 0
(x - 10) (x + 2) = 0
x = 10 or x = -2
x = 2 is not possible.
So x = 10
Longest leg = 2x + 4 = 20 + 4 = 24 feet
Hence the length of the longest leg is 24 feet.
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can someone help me on this math problem please
Answer:
Step-by-step explanation:
The answer for hypotenuse is 10 cm
The answer for area is 24 cm^2
Translate 2 3 y − 9 < y + 1 into a sentence. Nine than two-thirds of number is less than the number .
The sentence translation of "2/3y - 9 < y + 1" is "Nine less than two-thirds of a number is less than the number."
To translate the inequality expression "2/3y - 9 < y + 1" into a sentence, we can break it down into smaller parts:
"2/3y" represents two-thirds of a number.
"9" represents the number nine.
"y + 1" represents the number increased by one.
Now let's construct the sentence:
"Nine less than two-thirds of a number" - This refers to the expression "2/3y - 9," indicating that we have subtracted nine from two-thirds of a number.
"is less than" - This is the comparison symbol in the inequality.
"the number" - This refers to the expression "y + 1," representing the number increased by one.
Combining these parts, we form the sentence: "Nine less than two-thirds of a number is less than the number."
Hence, the correct sentence translation of "2/3y - 9 < y + 1" is "Nine less than two-thirds of a number is less than the number."
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least common multiple of 5/12 and 7/16
The least common multiple LCM of 5/12 and 7/16 is 35/16 or 2 whole number 3/16 expressed as a mixed fraction.
Least Common MultipleThe least common multiple also called LCM of two numbers is the smallest positive integer that is divisible by both numbers.
5/12 = 1/2 × 1/2 × 1/3 × 5 {expressed as product of its prime factors}
7/16 = 1/2 × 1/2 × 1/2 × 1/2 × 7 {expressed as product of its prime factors}
so their least common multiple is calculated as;
LCM = 1/2 × 1/2 × 1/2 × 1/2 × 5 × 7
LCM = 35/16
Therefore, the LCM of 5/12 and 7/16 is the fraction 35/16 or expressed as 2 whole number 3/16.
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Alia has a AED 20 gift card for an online music store. All songs at the store have the same price. After Alia buys 3 songs, the balance on the card is AED 16.25. What will be the remaining balance on the card after he buys 5 more songs
Answer:
Remaining balance = AED 13.75
Step-by-step explanation:
Given that:
Amount of gift card = AED 20
Amount left after buying 3 songs = AED 16.25
Cost of 3 songs = 20 - 16.25 = AED 3.75
Cost per song = \(\frac{3.75}{3}\)
Cost per song = AED 1.25
Cost of 5 songs = 5(1.25) = AED 6.25
Remaining balance = 20 - 6.25 = AED 13.75
Hence,
Remaining balance = AED 13.75
In 2012, there were about $6.26 billion cell phone subscribers in the world. During the next 5 years, the number of cell phone subscribers increased by about 4% each year.
a. Write an exponential model that represents the number of cell phone subscribers y (in billions) t years after 2012.
b. Use your model to estimate when the number of cell phone subscribers was about 7 billion. Round your answer to the nearest whole year.
Exponent is moved to multiplier after taking the ln of both sides.
ln(7) = ln(6.26) + t × ln (1.04)
What is meant by Exponent?Exponent is the process of representing huge numbers as powers, according to the definition. Accordingly, the exponent describes the number of times a number has been multiplied by itself. The quantity of times a number has been multiplied by itself is known as an exponent. To the third, for instance, is expressed as 23, which signifies that 2 x 2 x 2 = 8. 2 x 3 = 6 and 23 are not equivalent. Don't forget that a number raised to the power of one equals that number.The first 10 powers of two for non-negative values of n are 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, and so on (sequence A000079 in the OEIS)Using the above formula, the base is 1.04 (for only four years).
c (t) = 6.26*1.04t ,,,,t in years,,,,0≤t≤4
c = 7
Exponent is moved to multiplier after taking the ln of both sides.
ln(7) = ln(6.26) + t × ln (1.04)
t = [ln(7/6.26)] / ln(1.04)
same as t = [ln(7) - ln(6.26)]] / ln(1.04)
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In order for a set of ordered pairs to be a function, which of the following CAN NOT repeat?
O input (x)
O output (y)
O equation
O value
Answer:
input (x)
Step-by-step explanation:
A function is a relation in which the members of the domain (x-values) DO NOT repeat. So, for every x-value there is only one y-value that corresponds to it.
What is heron's formula
Answer:
\(\boxed{A=\sqrt{s(s-a)(s-b)(s-c)}}\)
Step-by-step explanation:
We can use Heron’s formula to determine the area of a triangle when three side lengths of a triangle are given.
\(s=\frac{a+b+c}{2}\)
\(s : \mathrm{semi \: perimeter}\)
\(A=\sqrt{s(s-a)(s-b)(s-c)}\)
\(A : \mathrm{area}\)
Answer:
Heron's formula gives the area of a triangle when the length of all three sides are known. Use Heron's formula to find the area of triangle ABC, if AB=3,BC=2,CA=4 . Substitute S into the formula . Round answer to nearest tenth.
Step-by-step explanation:
HELP ME PLEASE!!!!!!
ZEARN!!!!
The expression 1 2/5 + 2 2/3 using fifteenths is 3 + 6/15 + 10/15
How to rewrite the expression using fifteenthsFrom the question, we have the following parameters that can be used in our computation:
1 2/5 + 2 2/3
3 + 2/5 + 2/3
To rewrite the expression using fifteenths, we multiply the numerator and the denominator of the fractions by the same number
In this case, we use 3 and 5
So, we have
3 + 2/5 * 3/3 + 2/3 * 5/5
Evaluate the products
3 + 6/15 + 10/15
Hence, the expression using fifteenths is 3 + 6/15 + 10/15
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Please help!!!! !!!!!!!!
Step-by-step explanation:
Sum of all interior angles = 900°
A+B+C+D+E+F+G=900
120+B+148+90+142+130+129=900
B=900-759
B=141°
Find the volume of the figure
Answer:
volume=l×b×h=8.2×3.7×4.1=124.394in³
Brennan knew his parents had set up their will some years ago. Neither he nor his sister, Maureen, had ever discussed the will with their parents. When both parents passed away, they met with the family lawyer about the will. What they found was that the money their parents had been giving them over the last few years was a gift and part of their estate planning. The gifts reduced the size of the estate to ensure the value of the estate upon their passing would be under the tax-free limit.
Their parents had not really talked with Brennan or Maureen about how the “gift” money they had been receiving would affect their final inheritance. As they listened to
the estate lawyer give them details of their inheritance, they were shocked to learn there was less than what they had thought.
1. Discuss your thoughts on how Brennan’s and Maureen’s parents handled the informationin the will prior to their passing. Should the parents have explained more clearly about the “gift” money and how it affected their inheritance?
2. What responsibility did Brennan and Maureen have to discuss the will with their parents?
3. What experience do you have with a family member’s will? How would you approach
the topic of writing a will with a family member?
1.It is generally considered best practice for parents to discuss their intentions with their children and heirs to avoid confusion or misunderstandings.
2.As potential heirs, Brennan and Maureen had a responsibility to communicate with their parents about their estate planning and express any concerns or questions they had.
3.I have personally not had experience with a family member's will. However, I believe it is important to approach the topic of writing a will with sensitivity and empathy.
1. While it is understandable that Brennan and Maureen's parents may have wanted to keep their financial affairs private, their lack of communication may have caused confusion and disappointment for their children. Ideally, the parents should have discussed their estate planning with their children and explained the impact of the gifts on their final inheritance.
2. As potential heirs, Brennan and Maureen had a responsibility to communicate with their parents about their estate planning and express any concerns or questions they had. While it can be difficult to broach sensitive topics like death and inheritance, it is important for family members to have open and honest communication to prevent misunderstandings or disputes down the line.
3. It can be a difficult and emotional topic to discuss, but it is important to have open communication to ensure that everyone's wishes are respected and honored. It may be helpful to consult with a lawyer or financial advisor to ensure that the will is properly drafted and that everyone's needs are addressed.
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What is an equation of the line that passes through the point (-1,-7) and is perpendicular to the line x+y=6x
The number of bacteria in a certain population increases according to a continuous exponential growth model, with a growth rate parameter of 9.8% per hour. How many hours does it take for the size of the sample to double?
Note: This is a continuous exponential growth model.
Do not round any intermediate computations, and round your answer to the nearest hundredth.
For the population to double, it takes around 7.07 hours.
The continuous exponential growth model is given by:
\(N(t) = N0 * e^{rt}\)
Where:
N(t) is the population size at time t
N is the initial population size (at t = 0)
r is the growth rate parameter
t is the time elapsed
We want to find the time t it takes for the population size to double, which means N(t) = 2N. Substituting into the growth model, we get:
\(2N = N * e^{rt}\)
Dividing both sides by N, we get:
\(2 = e^{rt}\)
Taking the natural logarithm of both sides, we get:
ln(2) = rt
Solving for t, we get:
t = ln(2)/r
Substituting r = 0.098 (9.8% as a decimal), we get:
t = ln(2)/0.098
t ≈ 7.07 hours
Therefore, it takes approximately 7.07 hours for the population size to double.
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Given the circle below with secants JKL and NML, find the length of JK. Round to the nearest tenth if necessary.
Using the Intersecting secants theorem, the length of JK in the given diagram is 17
Intersecting secants theorem: Calculating the length of of JKFrom the question, we are to determine the length of JK in the given diagram.
The diagram shows a circle with intersecting secants.
From the Intersecting secants theorem which states that "if two secant segments are drawn to a circle from an exterior point, then the product of the measures of one secant segment and its external secant segment is equal to the product of the measures of the other secant segment and its external secant segment".
Then,
We can write that
JK × KL = NM × ML
From the given diagram,
KL = 14
NM = 14
ML = 17
Substituting the values
JK × 14 = 14 × 17
JK = (14 × 17) / 14
JK = 17
Hence, the length of JK is 17
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) Assume that a simple random sample has been selected from a normally distributed population and test the given claim at α = 0.05. State the claim mathematically. Identify the null and alternative hypotheses, test statistic, critical region(s), and the decision regarding the null hypothesis. State the conclusion that addresses the original claim. A local group claims that police issue at least 60 speeding tickets a day in their area. To prove their point, they randomly select two weeks. Their research yields the number of tickets issued for each day. The data are listed below. 70 48 41 68 69 55 70 57 60 83 32 60 72 58
We cannot conclude that there are more than 70,000 defined words in the dictionary.
To test the claim that there are more than 70,000 defined words in the dictionary, we can set up the null and alternative hypotheses as follows:
Null Hypothesis (H0): The mean number of defined words on a page is 48.0 or less.
Alternative Hypothesis (H1): The mean number of defined words on a page is greater than 48.0.
So, sample mean
= (59 + 37 + 56 + 67 + 43 + 49 + 46 + 37 + 41 + 85) / 10
= 510 / 10
= 51.0
and, the sample standard deviation (s)
= √[((59 - 51)² + (37 - 51)² + ... + (85 - 51)²) / (10 - 1)]
≈ 16.23
Next, we calculate the test statistic using the formula:
test statistic = (x - μ) / (s / √n)
In this case, μ = 48.0, s ≈ 16.23, and n = 10.
test statistic = (51.0 - 48.0) / (16.23 / √10) ≈ 1.34
With a significance level of 0.05 and 9 degrees of freedom (n - 1 = 10 - 1 = 9), the critical value is 1.833.
Since the test statistic (1.34) is not greater than the critical value (1.833), we do not have enough evidence to reject the null hypothesis.
Therefore, based on the given data, we cannot conclude that there are more than 70,000 defined words in the dictionary.
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Complete the expression so that it is equivalent to 2 (x+6)
The complete expression is (2 × x) + (2 × 6). This is an equivalent expression to the given expression.
What is an expression?
A number, a variable, or a combination of numbers, variables, and operation symbols make up an expression. Two expressions joined by an equal sign form an equation.
Given expression is
2 (x+6)
Distributive property: The same outcome is obtained by multiplying the sum of two or more addends by a number as it is by multiplying each addend by the number separately and combining the resulting products.
The mathematical representation is a(b+c) = ab + ac.
Apply the Distributive property in the given expression:
(2×x) + (2×6)
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¿Qué número dividido entre 4 es igual a 60
Answer:
240
Step-by-step explanation:
60 = 1/4 of x
so: x = 60*4
x = 240
check:
240/4 = 60
60 = 60 true!!
Answer:
240÷4=60
Step-by-step explanation:
docientos cuarenta dividido entre cuatro es igual a sesenta.