Which of the expressions is rational?
convert to an improper fraction, type your answer with the negative in the numerator.
-11 1/3 =
There are 84 new houses being built in a neighborhood. Last month, 1/3 of them were sold. This month, 5/7 of the remaining houses were sold. How many houses are left to be sold?
The number of houses left to be sold is 9, calculated from the initial total and the proportions sold each month.
The number of houses left to be sold is 9.
Initially, 1/3 of the 84 new houses were sold, which is 84 × (1/3) = 28 houses sold.
There were 84 - 28 = 56 houses remaining.
From these remaining houses, 5/7 were sold this month, which equates to 56 × (5/7) = 40 houses sold. Thus, 56 - 40 = 16 houses are left to be sold.
A waitress earned $73 for 6 hours of work. The total included $46 in tips. What was her hourly wage? (Show Work) ...?
To solve the inequality 9x > -4, the inequality sign must be reversed.
true or false?
What is the coefficient of the term of degree 1 in the polynomial below?
4x2 + 3x9 - 6x3 + 5x - 8
A. -6
B. 4
C. 5
D. -8 ...?
Carlos went out to a restaurant for dinner. he tipped 25% of his bill, which brought the sum of the dinner bill plus the tip to $45. how much was the original bill?
m<s=30°,mRS(arch)=84 degrees and RU is tangent to the circle at R. Find m<U.
The figure is not drawn to scale.
A) 27°
B) 12°
C) 54°
D) 24°
Answer:
B. [tex]12^{\circ}[/tex]
Step-by-step explanation:
We have been given an image of a circle. We are asked to find the measure of angle U.
We have been given that measure of angle 's' is 30 degrees, so the measure of arc RT will be 2 times the measure of angle 's' as angle 's' is inscribed angle of arc RT.
[tex]\text{Measure of arc RT}=2\times 30^{\circ}[/tex]
[tex]\text{Measure of arc RT}=60^{\circ}[/tex]
We know that the measure of angle formed by intersecting secant and tangent outside a circle is half the difference of intercepted arcs.
Using Secant-tangent theorem, we can set an equation to find the measure of angle U as:
[tex]m\angle U=\frac{1}{2}\times (\text{Measure of arc RS}-\text{Measure of arc RT})[/tex]
Substituting the given values in above equation we will get,
[tex]m\angle U=\frac{1}{2}\times(84^{\circ}-60^{\circ})[/tex]
[tex]m\angle U=\frac{1}{2}\times(24^{\circ})[/tex]
[tex]m\angle U=12^{\circ}[/tex]
Therefore, the measure of angle U is 12 degrees and option B is the correct choice.
Is 701. 5 = to 701. 50.
Final answer:
701.5 is equal to 701.50 because in decimals, trailing zeroes after the decimal point do not change the value of the number; they only indicate precision.
Explanation:
The question is about whether 701.5 is equal to 701.50. In mathematics, when comparing numbers with different numbers of decimal places, it's important to understand the significance of trailing zeroes in the decimal part.
A zero after the decimal point but at the end of a number (trailing zero) does not change the value of the number.
Therefore, 701.5 is exactly equal to 701.50
This is because the trailing zero in 701.50 does not add any value but merely serves as a placeholder, indicating precision to the hundredth place without changing the number's value.
Which choices listed below indicate that a linear model is not the best fit for a dataset? Choose all that apply.
(3 options)
• Scatterplot shows a strong linear pattern.
• Scatterplot shows a curve pattern.
• Residual plot shows a curve pattern.
• Residual plot shows no pattern.
• Correlation coefficient is close to 1 or –1.
• Coefficient of determination is close to 1 or –
Find all points of extrema on the interval [0, 2π] if y= x + sinx. ...?
The number of people waiting in a line to buy tickets x minutes after a ticket booth opened is given by the expression 70 − 5x.
What does the value 70 represent?
A. the number of people in the line when the ticket booth opened
B. the number of people who bought tickets every minute
C. the number of minutes it takes to sell all the tickets
D. the total number of tickets available
The 70 represents the no of people in the line at the time when the ticket booth is opened.
Given that,
The time is in minutes.And, the given expression is 70 - 5x.Based on the above information, the 70 shows that the number of people at the time when the ticket booth is opened.
Therefore, the other options are wrong.
Thus we can conclude that the 70 represents the no of people in the line at the time when the ticket booth is opened.
Learn more: brainly.com/question/22401678
Given a slope of -6/7 and a y-intercept of -10, write the equation of the line in slope intercept form
Which of the following is a solution to the inequality below?
-6x2 + 20x - 17 > y
A. (0,0)
B. (2,-2)
C. (1,5)
D. (5,2)
For what intervals is f(x)=xe^-x concave down?
The function f(x) = xe⁻ˣ is concave down for intervals where the second derivative f''(x) is negative, which occurs when x > 0.
To determine the intervals where the function f(x) = xe⁻ˣ is concave down, we need to find the second derivative of the function and identify where it is negative. The first derivative of the function f'(x) = e⁻ˣ - xe⁻ˣ is obtained using the product rule. Then, we take the second derivative: f''(x) = -e⁻ˣ - e⁻ˣ + xe⁻ˣ = -2e⁻ˣ + xe⁻ˣ.
To find where the function is concave down, we need to find the intervals where f''(x) < 0. By analyzing the second derivative, we can see that the term -2e⁻ˣ is always negative, while the term xe⁻ˣ can be either positive or negative depending on the value of x.
For x > 0, the term xe⁻ˣ is positive, making f''(x) more negative, therefore, the function is concave down for x > 0.
What is the value of 0.15 divided by .05
If an object is dropped from a height of 144 feet, the function h(t)=-16t^2 +144 gives the height of the object after t seconds. When will the object hit the ground?
Factor completely 5x2 – 5x – 100
A)5(x + 4)(x – 5)
B)5(x – 2)(x + 10)
C)(5x + 20)(x – 5)
D)(5x – 10)(x + 10) ...?
Final answer:
The quadratic equation 5x² - 5x - 100 is factored completely by first taking out the greatest common factor of 5, and then finding two binomials that multiply to give the remaining quadratic. The correct factorization is 5(x - 5)(x + 4), which is option A.
Explanation:
To factor the quadratic equation 5x² − 5x − 100 completely, we need to find two binomials that, when multiplied together, will give us the original equation. First, we will factor out the greatest common factor (GCF), which is 5. This leaves us with:
5(x² − x − 20)
Now, we need to factor the quadratic expression inside the parentheses. The factors of −20 (the constant term) that add up to −1 (the coefficient of the middle term) are −5 and 4. Thus:
5(x − 5)(x + 4)
We can confirm that none of the other choices provide the correct factors:
Choice B does not give us the original middle term when expanded.Choice C is incorrect because it does not result in the original constant term when expanded.Choice D also doesn't give us the desired constant term.Therefore, the correct answer is 5(x − 5)(x + 4), which corresponds to option A.
Crystal earns $5.25 per hour mowing lawns. Write a rule to describe how the amount of money m earned is a function of the number of hours h spent mowing lawns. How much does Crystal earn if she works 2 hours and 15 minutes?
Answer:
m(h)= 5.25h; 11.81
11.81 is the answer
What is the simplified form of the quantity of x plus 8, all over 4 − the quantity of x plus 5, all over 4?
Answer:
[tex]\frac{3}{4}[/tex]
Step-by-step explanation:
the simplified form of the quantity of x plus 8, all over 4 − the quantity of x plus 5, all over 4
[tex]\frac{x+8}{4} -\frac{x+5}{4}[/tex]
To simplify the expression , we check the denominator.
When the denominators are same then we subtract the numerators, we put denominator only once
[tex]\frac{x+8-(x+5)}{4}[/tex]
Multiply negative inside the parenthesis and combine like terms
[tex]\frac{x+8-x-5}{4}[/tex]
[tex]\frac{3}{4}[/tex]
81 is 37.5% of what number
Which is a prime number 29,51,81,93?
Answer:
29
Step-by-step explanation:
29 is only divisible by 1 and itself.
For a snack, Sameer ate a plum with 32 calories and several strawberries with 4 calories each. If the total number of calories in Sameer’s snack was 56, how many strawberries did he eat?
The number of strawberries Sameer ate is 6.
Given that, Sameer ate a plum with 32 calories and several strawberries with 4 calories each. The total number of calories in Sameer’s snack was 56.
What is a unitary method?The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
Now, remaining calories=Total number of calories - Number of calories in plum
=56-32=24
Number of strawberries=24/4 =6
Therefore, the number of strawberries Sameer ate is 6.
To learn more about a unitary method visit:
https://brainly.com/question/22056199.
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2cos^2x+3cosx-2=0 ...?
In the drawing, six out of every 10 tickets are winning tickets. Of the winning tickets, one out of every three awards is a larger prize.
What is the probability that a ticket that is randomly chosen will award a larger prize?
Answer:
The probability that a ticket that is randomly chosen will award a larger prize is:
1/5=0.2
Step-by-step explanation:
Let A denote the event that the ticket is a winning ticket.
B denote the event that there is a larger prize.
A∩B denote the event that there is a larger prize on the winning ticket.
Let P denote the probability of an event.
Now according to the given information we have:
[tex]P(A)=\dfrac{6}{10}[/tex]
Also, [tex]P(B|A)=\dfrac{1}{3}[/tex]
Hence, we are asked to find: P(A∩B)
We know that:
[tex]P(B|A)=\dfrac{P(A\bigcap B)}{P(A)}\\\\\\\dfrac{1}{3}=\dfrac{P(A\bigcap B)}{\dfrac{6}{10}}\\\\\\P(A\bigcap B)=\dfrac{1}{3}\times \dfrac{6}{10}\\\\P(A\bigcap B)=\dfrac{2}{10}=\dfrac{1}{5}=0.2[/tex]
The probability is:
1/5=0.2
The overall probability that a randomly chosen ticket will award a larger prize is 0.2, or 20%, obtained by multiplying the probability of drawing a winning ticket (0.6) with the probability of winning a larger prize if the ticket is a winner (0.333).
For the probability that a ticket randomly chosen will award a larger prize, given that 6 out of every 10 tickets are winners and of those, 1 out of every 3 is a larger prize.
First, we calculate the probability of drawing a winning ticket, which is 6/10 or 0.6.
Then we compute the probability of the winning ticket awarding a larger prize, which is 1/3 or approximately 0.333.
To find the overall probability of a randomly chosen ticket awarding a larger prize, we multiply these two probabilities together:
Overall probability = Probability of winning ticket×Probability of larger prize on winning ticket
Overall probability = 0.6 ×0.333
Overall probability ≈ 0.2
So, the probability that a ticket awards a larger prize is 0.2, or 20%.
Divide and simplify.
(24a^3)/(35b^2) divided by (16a)/(14b^3)
A. (12a)/(35b)
B. (5a^2b)/(3)
C. (4a^2)/(5b)
D. (3a^2b)/(5)
The cost of producing pots is the initial investment, $175, plus $3.50 in materials per pot. Therefore, the function C(p) = 175 + 3.5p defines the cost, C, of producing a number of pots, p. To the nearest cent, how much will it cost to produce 125 pots? (Enter only the number without the dollar sign, such as 25.03 for twenty-five dollars and 3 cents.)
How many pots can be produced if the budget is limited to $450?
compare and contrast the division property of equality and the division property of inequality.a.the two properties are exactly the same.b.the two properties are exactly the same when dividing by a positive number. for the division property of inequality, dividing by a negative number causes the relation symbol to change. dividing both sides of an equation by a negative number does not have an effect on the equal sign.c.the two properties are exactly the same when dividing by a negative number. for the division property of inequality, dividing by a positive number causes the relation symbol to change. dividing both sides of an equation by a positive number does not have an effect on the equal sign.d.the two properties are exactly the same when dividing by a positive number. for the division property of equality, dividing by a negative number causes the equal sign to change. dividing both sides of an inequality by a negative number does not have an effect on the relation symbol.
What is 972 divided by 37?
A polynomial function has a zero at x=3 which of the follwing expressions must be one factor of the polynomial. A. x + 3 b. 3x C. x^3 D. x - 3 but could you explain how to do it so i can do it on my own! ...?
Answer: The correct option is (D) (x - 3).
Step-by-step explanation: Given that a polynomial function has a zero at x = 3.
We are to select the correct expression that must be a factor of the polynomial.
FACTOR THEOREM : The theorem states that if x = a is a zero of a polynomial p(x), then (x - a) will be a factor of the polynomial p(x).
In case of our given polynomial, since x = 3 is a zero of the polynomial, so by factor theorem, we can say that
(x - 3) is a factor of the given polynomial.
Thus, the required factor is (x - 3).
Option (D) is CORRECT.