Answer:It’s the third one.
Step-by-step explanation: i got it right.
Two boards are placed end to end to make a walkway. One board is 6 feet 11 inches long, and the other board is 5 feet 7 inches long. How long is the walkway?
Write your answer in feet and inches. Use a number less than 12 for inches.
The walkway is 11 feet 6 inches long.
To find the length of the walkway, we need to add the lengths of the two boards.
The first board is 6 feet 11 inches long, which can be written as 6 + 11/12 feet using the fact that there are 12 inches in a foot.
The second board is 5 feet 7 inches long, which can be written as 5 + 7/12 feet.
Now we can add the lengths of the two boards:
6 + 11/12 feet + 5 + 7/12 feet
= 11 + 6/12 feet
=11 + 1/2 feet
Therefore, the walkway is 11 feet 6 inches long.
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The price of the tennis racket was estimated to be 200 dollars. However, the actual
prin of the tennis racket was 400 dollars What is the percent error?
if x varies directly as y, and x=9 when y=3, find x when y=12
X varies directly as y , that x = 9 when y = 3,the value of x when y = 12 by the constant of Variation , value of x is 36.
X varies directly as y, it means that there is a constant ratio between x and y. We can express this relationship using the formula:
x = ky
where k is the constant of variation.
To find the value of k, we can use the given information that x = 9 when y = 3. Substituting these values into the formula, we have:
9 = k * 3
Solving for k, we divide both sides of the equation by 3:
k = 9/3
k = 3
Now that we have the value of k, we can find x when y = 12 by substituting it into the formula:
x = 3 * 12
x = 36
Therefore, when y = 12, the corresponding value of x is 36.
if x varies directly as y and we are given that x = 9 when y = 3, we can find the value of x when y = 12 by determining the constant of variation (k) and using the formula x = ky. In this case, the constant of variation is 3, so when y = 12, x equals 36.
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Write and solve an equation to find the value of x.
The value of x for each item is given as follows:
28. x = 5.
29. x = 3.44.
How to obtain the value of x in each item?For item 28, we apply the crossing chord theorem, which states that the products of the parts of the chords are equal, hence the value of x is obtained as follows:
16x = 10 x 8
16x = 80
x = 5.
For item 29, we apply the two secant theorem, hence the value of x is obtained as follows:
10(x + 10) = 12(12 + 25)
10x + 100 = 444
10x = 344
x = 3.44.
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When a scientist conducted a genetics experiments with peas, one sample of offspring consisted of 919 peas, with 720 of them having red flowers. Ifwe assume, as the scientist did, that under these circumstances, there is a 3/4 probability that a pea will have a red flower, we would expect that689.25 (or about 689) of the peas would have red flowers, so the result of 720 peas with red flowers is more than expected.a. If the scientist's assumed probability is correct, find the probability of getting 720 or more peas with red flowers.b. Is 720 peas with red flowers significantly high?c. What do these results suggest about the scientist's assumption that 3/4 of peas will have red flowers?a. If the scientist's assumed probability is correct, the probability of getting 720 or more peas with red flowers is(Round to four decimal places as needed.)
a.
The sample is consisted of 919 peas and 720 have red flowers
If we assuma a 3/4 probavility that a pea will have a red flower, according to a binomial distribution (that is, which assumes only to possible outcomes: red and not red), the standard deviation must be given by:
\(\begin{gathered} \sigma=\sqrt[]{np(1-p)} \\ \sigma=\sqrt[]{919\cdot\frac{3}{4}(1-\frac{3}{4})} \\ \sigma\approx\sqrt[]{172} \\ \sigma\approx13.1268 \end{gathered}\)Then, the Z score of 720 with a expected value of 689;25 and a standard deviation of 13.1268 is given by:
\(Z=\frac{720-689.25}{13.1268}\approx2.3425\)Using a normal approximation, according to a normal distribution table, we conclude that the probability of getting 720 or more peas with red flowers is given by 0.0096 = 0.96%
b.
Usually, when a
Evaluate the expression. 1.8 plus (8.9 - 2.9)
Answer: 7.8
Explanation: 8.9 - 2.9 = 6.0 + 1.8 = 7.8
HELP PLEASE : )
Simplify the expression:
6/3(13−18)+2^4÷6
Answer:
-7.33
Step-by-step explanation:
Answer:
-7.333
Step-by-step explanation:
To solve this you have to use B O D M A S theorem and we have to solve the given expression according to the theorem.
That is,
B ⇒ Brackets
O ⇒ Of
D ⇒ Division
M ⇒ Multiplication
A ⇒ Addition
S ⇒ Subtraction
Let us solve it now.
\(\frac{6}{3} (13-18)+2^{4}\) ÷ \(6\)
2 ( -5) + 16÷ 6
-10 + 2.667
-7.333
Suppose a normal distribution has a mean of 50 and a standard deviation of 3. What is P(x≤ 44)? A. 0.025 B. 0.975 C. 0.84 D. 0.16
A normal distribution has a mean of 50 and a standard deviation of 3 , the probability P(X ≤ 44) = P(Z ≤ -2) = 0.0241 option a) 0.025.
In probability theory, normal distribution is also known as Gaussian distribution. It is a probability distribution that is symmetrical, bell-shaped, and a continuous probability distribution. It's also a part of continuous probability distribution that describes real-valued random variables whose probability density function is affected by two parameters: the mean μ and the variance σ².
Let us consider the problem. Suppose a normal distribution has a mean of 50 and a standard deviation of 3. Firstly, we need to standardize the random variable X that is to convert it to the standard normal distribution. We use the following formula for this Z = (X - μ) / σwhere X is the random variable and μ is the mean, σ is the standard deviation of the population.
So in this case, we can write this as Z = (44 - 50) / 3 = -2
We have now obtained the standard score or standard deviation for the random variable X.
Now we need to calculate the probability P(X ≤ 44) = P(Z ≤ -2).
The probability of Z being less than -2 is denoted by the area under the standard normal curve to the left of Z = -2.
Using the standard normal table we look for the probability that corresponds to -2 and the closest we find is 0.0228.
This probability represents the area under the standard normal distribution to the left of Z = -2.
To calculate the area to the left of Z = -2, we add the area to the left of the next integer, which is -3, which we find from the standard normal table as 0.0013, 0.0228 + 0.0013 = 0.0241.
Therefore, the probability P(X ≤ 44) = P(Z ≤ -2) = 0.0241 or 0.025 (rounded to three decimal places)Therefore, the answer is option A. 0.025.
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HELP AS SOON AS POSSIBLE PLEASE
A scatter plot, because it would show the association, or relationship, between the two variables
How to determine the most appropriate to construct for the dataFrom the question, we have the following parameters that can be used in our computation:
The table of values
To show the relationship and association between data values, the data values are best represented on a scatter plot
using the above as a guide, we have the following:
The most appropriate to construct for the data is (b)
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can someone say what 45-49 is with regrouping? thanks!
Answer:
it's -4 i don't know what you mean by regrouping, sorry
Step-by-step explanation:
Answer:
45-49
=-4 ans!
this is the answer
Select the correct answer.
Which expression is equivalent to the given expression?
(3m^-4)^3(3m^5)
A.
B.
C.
D.
Answer:
\(d)\ \frac{81}{m^{7}}\)
Step-by-step explanation:
\((3m^-4)^3(3m^5)\)
First, simplify \((3m^{-4})^3\):
\((3m^{-4})^3\\\\3^3*m^{-4*3}\\\\27m^{-12}\)
\(27m^{-12}*3m^5\\\\27*3 *m^{-12+5}\\\\81m^{-7}\\\\81*\frac{1}{m^{7}} \\\\\frac{81}{m^{7}}\)
Hope this helps!
Find the value of x such that the line containing (1,2) and (5,3) is perpendicular to the line containing (x,4) and (3,0)
The value of x that makes the line containing (1,2) and (5,3) perpendicular to the line containing (x,4) and (3,0) is x = 2.
To determine the value of x such that the line containing (1,2) and (5,3) is perpendicular to the line containing (x,4) and (3,0), we need to find the slope of both lines and apply the concept of perpendicular lines.
The slope of a line can be found using the formula:
slope = (change in y) / (change in x)
For the line containing (1,2) and (5,3), the slope is:
slope1 = (3 - 2) / (5 - 1) = 1 / 4
To find the slope of the line containing (x,4) and (3,0), we use the same formula:
slope2 = (0 - 4) / (3 - x) = -4 / (3 - x)
Perpendicular lines have slopes that are negative reciprocals of each other. In other words, if the slope of one line is m, then the slope of a line perpendicular to it is -1/m.
So, we can set up the equation:
-1 / (1/4) = -4 / (3 - x)
Simplifying this equation:
-4 = -4 / (3 - x)
To remove the fraction, we can multiply both sides by (3 - x):
-4(3 - x) = -4
Expanding and simplifying:
-12 + 4x = -4
Adding 12 to both sides:
4x = 8
Dividing both sides by 4:
x = 2
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A scuba diver descends from the surface at a rate of 34 feet per minute.
What is the position of the scuba diver relative to the surface after diving for 4 minutes?
Answer:
The answer is -136
Step-by-step explanation:
you multiply -34 by 4 which gives you -136
(Hope this help)
This is due in like a hour please help!
Answer:
i think the fourth one is equvilent ratio
Step-by-step explanation:
Ten and one third minus seven and two thirds
10 and 1/3 minus 7 and 2/3 is equal tο 8/3 οr 2 and 2/3.
What is the fractiοn?In Maths, a fractiοn is used tο represent the pοrtiοn/part οf the whοle thing. It represents the equal parts οf the whοle. A fractiοn has twο parts, namely the numeratοr, and denοminatοr. The number οn the tοp is called the numeratοr, and the number οn the bοttοm is called the denοminatοr.
Tο subtract 7 and 2/3 frοm 10 and 1/3, we can write bοth as imprοper fractiοns with a cοmmοn denοminatοr and then subtract:
10 and 1/3 - 7 and 2/3 = (31/3) - (23/3)
Tο subtract these fractiοns, we need a cοmmοn denοminatοr, which is 3. We can rewrite the fractiοns with the cοmmοn denοminatοr οf 3:
(31/3) - (23/3) = (31 - 23)/3 = 8/3
Therefοre, 10 and 1/3 minus 7 and 2/3 is equal tο 8/3 οr 2 and 2/3.
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Complete question:
Convert the given sentence in to an algebraic expression and solve. Ten and one third minus seven and two thirds
help me give you free
points
what is 1+1 also answer the riddle
you can only answer if you are using this to teach a class
and you need to show me proof that you are using this to teach a class
Answer:
Through their rings! They've all got rings around them and that's like engagement haha.
find the circumference of a cirlce with diameter d=9.7cm
Answer:
circumference of a circle = 30.473 cm
Step-by-step explanation:
solution: given diameter- 9.7cm
so radius (pie) = d/2 = 9.7/2 = 4.85
circumference of a circle is 2(pie)r
circumference = 2 × 22/7 × 4.85
circumference = 30.47345 = 30.473 to 3 sf.
circumference of a circle = 30.473 cm
Ben goes to buy some school supplies at a store. He has $30.
COST OF SCHOOL SUPPLIES
Cost per Item
Items
(in dollars)
Notebook
12.50
Pen
0.75
Pencil box
2.25
Stapler
7.00
Calculator
17.00
Answer:
it’s a Stapler, to pencil boxes and two pens
Step-by-step explanation:
are you have to do is add a calculator stapler stapler to pencil boxes and two pens altogether and you get exactly 30/// So technically you add 17+7+4.5+1.5
A triangle has sides with lengths of 2 centimeters, 4 centimeters, and 5 centimeters. Is it a right triangle?
PLEASE HELP
Answer:
NoStep-by-step explanation:
Use Pythagorean to verify:
2² + 4² = 5² 4 + 16 = 2520 = 25As we see the equation is not true, so the answer is no
Let's use Pythagorean theorem to verify
\(\\ \sf\longmapsto H^2=P^2+B^2\)
\(\\ \sf\longmapsto 5^2=4^2+2^2\)
\(\\ \sf\longmapsto 25=16+4\)
\(\\ \sf\longmapsto 25\neq 20\)
Not a right triangle
What is
\( \frac{4}{60} \)
simplified?
Answer:
1/15
Step-by-step explanation:
4/60
Divide the top and bottom by 4
4/4 =1
60/4= 15
1/15
pls I need help in this exercise
Therefore ,a s a result, the answer to the given equation problem is that a carpet costs $2072.
Describe equation.When all of the highest powers of the variables are equal to one, an equation is said to be linear. The parts are linked together. Another name for this kind of problem is a one-degree equation. The following paragraphs will teach you how to solve a linear equation in one or two variables using the usual form, formula, graph, and directions.
Here,
Given :
50a + 12h is the floor area of a square foot.
where h is the amount of hours.
Thus.
When t=6 and a=40
So ,
the price of carpeting
=> Price = 50a plus 12h
=> Cost = 50*40 + 12*6
=> Cost = 2000 + 72
=> Cost = 2072
As a result, the answer to the given equation's problem is that a carpet costs $2072.
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Please help
A can holds 345 milliliters of orange juice. How many liters of orange juice is
this?
Metric Units of Capacity
1,000 milliliters (ml) = 1 liter (L)
100 centiliters (CL) 1 liter
10 deciliters (dL) = 1 liter
1 dekaliter (dal) = 10 liters
1 hectoliter (L) = 100 liters
1 kiloliter (KL) = 1,000 liters
Answer:
0.345 L
Step-by-step explanation:
so we know that 1L = 1000 mL
now we have 345 mL so it equals 0.345 L
Help me with this please!
The solution is: Option D has the correct data points and so is the right answer.
We have,
A function is a mathematical way of representing relation between two variables.
The function given is
y = 2x²
For x = - 2, y = -2(- 2)² = -8
For x = - 1, y = -2(- 1)² = -2
For x = 0, y = -2(0)² = 0
For x = 1, y = -2(1)² = -2
For x = 2, y = -2(2)² = -8
the table of x-y will be:
x - 2 - 1 0 1 2
y -8 -2 0 -2 -8
The graph is attached with the answer.
The parabola opens downward and has the data points as mentioned above .
The Graph B best represents a parabola ,
Therefore Option D is the correct answer.
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complete question:
Complete the following table using the equation: Y = negative 2 x Squared x -2 -1 0 1 2 y Plot the points on a graph and determine which graph best represents the equation. Graph A On a coordinate plane, a parabola opens up. It goes through (negative 1, 2), has a vertex at (0, 0), and goes through (1, 2). Graph B On a coordinate plane, a parabola opens down. It goes through (negative 1, negative 1), has a vertex at (0, 0), and goes through (1, negative 1). a. 8, 2, 0, 2, 8; Graph A b. -8, -2, 0, -2, -8; Graph A c. 8, 2, 0, 2, 8; Graph B d. -8, -2, 0, -2, -8; Graph B Please select the best answer from the choices provided A B C D
Verónica Ana y Luis pintan una barda y les pagan 300 cuánto dinero debería recibir cada quien
Si Verónica, Ana y Luis están pintando una barda y se les paga un total de 300 unidades monetarias (por ejemplo, dólares, pesos, etc.), para determinar cuánto dinero debería recibir cada uno, necesitamos más información sobre cómo se distribuye el trabajo entre ellos.
Si los tres contribuyen de manera equitativa y realizan la misma cantidad de trabajo, podrían dividir el pago de manera igualitaria. En ese caso, cada uno recibiría 100 unidades monetarias (300 dividido entre 3).
Sin embargo, si uno de ellos realiza más trabajo o tiene una mayor responsabilidad en la tarea, podría ser justo que reciba una porción mayor del pago. En ese caso, la distribución de los 300 unidades monetarias dependerá de un acuerdo previo entre ellos sobre cómo se divide el pago en función de la cantidad o calidad del trabajo realizado.
Es importante tener en cuenta que la asignación exacta de dinero puede variar dependiendo de las circunstancias y el acuerdo al que lleguen Verónica, Ana y Luis.
Can someone answer this please
Answer:
3/7 times 5/4
Step-by-step explanation:
when dividing fractions, all you do is keep the first fraction, change the sign to multiplication, and flip the last fraction. In this case it would be 3/7 and 5/4
Answer:
The answer is B: 3/7 times 5/4.
Step-by-step explanation:
The process is stay, change, flip.
Stay equals keep the first fraction the same (3/7).
Change equals change the operation (division to multiplication).
Flip equals flip the second fraction (flip 4/5 to 5/4).
What is the inverse of the function f(x) = one-ninthx + 2?
h(x) = 18x – 2
h(x) = 9x – 18
h(x) = 9x + 18
h(x) = 18x + 2
Answer:
c
Step-by-step explanation:
we know that f(x) = 1/9x +2,
so h(1/9x + 2) = x
3 Jack walk from Santa Clara to Polo Allo. Il took I hour 25 min to walk from Santa Clot to Los Altos. Than it took 25 minute of wal from los altos to Palo buto. He arrived in Palo alto at 2:45 P.M. of what time die Santa Clara ? he leave Santa clara
The time Jack left Santa Clara is 1 : 55 pm
What is word problem?A word problem in math is a math question written as one sentence or more. These statements are interpreted into mathematical equation or expression.
The time for Jack to walk to lose Altos is 25 min and he uses another 25mins to work to Palo alto.
Therefore, the total time he spent is
25mins + 25 mins = 50 mins
He arrived Palo at 2 :45 pm, therefore the time he left Santa Clare will be ;
2:45 pm = 14 :45
= 14:45 - 50mins
= 13:55
= 1 : 55pm
Therefore he left at 1:55 pm
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PLEASE HELP WORTH 25 POINTS
Model with Mathematics The outline of a park is
shown in the diagram. Each square on the grid represents
a square yard. Use shapes to model the area of the park.
Explain your reasoning and justify your calculations.
Answer:
We are trying to calculate the area of the park by modeling it with shapes. To start, the larger rectangle (green) toward the top is the easiest to calculate. Its length is 8 yards and its width is 4 yards, so the area would be 8 x 4 = 32 yards^2.
Next, the 3 rectangles at the bottom (white). The one in the middle has a length of 4 yards and a width of 3 yards, so its area is 4 x 3 = 12 yards^2. The two rectangles to either side are the same size, so together their area will be 2 x 4 x 3 = 24 yards^2.
Now that we have modeled the park with 3 shapes, we need to add the areas together to get the total area. So, we have 32 + 12 + 24 = 68 yards^2. The total area of the park is 68 yards^2.
Step-by-step explanation:
The area of the park is about :
95 + 27 = 122 yards
We have the following information available from the question is:
The outline of a park is shown in the diagram. Each square on the grid represents a square yard. Use shapes to model the area of the park.
Now, According to the question:
Each square on the grid represents a square yard, and as we can see from the figure that the complete square is about 95, the incomplete grid is about 27,
So the area of the park is about :
95 + 27 = 122 yards
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Mary determined that her father's age is four less than three times her age. If represents Mary's age,
which expression represents her father's age? (A.SSE.1.b)
A) 3x-4
B) (x-4)
C) 4x-3
D) 4-3x
Answer:
B
Step-by-step explanation:
3x-4 represent father's age
(122
1
(12x + 6x – 21)
3
—
?
Answer:
6x -7
Step-by-step explanation:
Answer:
6x-7
Step-by-step explanation:
you distribute the 1/3 to everything in the parenthesis