HELP RN URGENT


2.82

Name the mixed decimal as a mixed fraction.


A) 28 2/10


B) .2 8/2


C) .2 82/10


D) .2 82/100

A left-recursive grammar rule is one where the non-terminal symbol appears on the left side of the production rule. In contrast, a right-recursive grammar rule is one where the non-terminal symbol appears on the right side of the production rule.

In a grammar, a production rule consists of a non-terminal symbol (the left-hand side) and a sequence of terminal and/or non-terminal symbols (the right-hand side). The order in which these symbols appear determines whether the rule is left-recursive or right-recursive.

A left-recursive grammar rule is of the form A -> Aα, where A is a non-terminal symbol and α is a sequence of terminal and/or non-terminal symbols. This rule allows the non-terminal A to derive itself or to derive a string that eventually leads to A. Left-recursion can cause infinite loops during parsing or evaluation.

On the other hand, a right-recursive grammar rule is of the form A -> αA, where A is a non-terminal symbol and α is a sequence of terminal and/or non-terminal symbols. In this case, the non-terminal A appears at the end of the rule, allowing the derivation to proceed from left to right.

The distinction between left-recursive and right-recursive grammar rules is important in parsing algorithms and language processing. Most top-down parsing techniques, like recursive descent parsing, can handle right-recursive rules efficiently, while left-recursive rules can cause problems.

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Answer:

<4 = 59

Step-by-step explanation:

x + 60 + 61 = 180

x + 121 = 180

x = 59

Answer:

n = 45

Step-by-step explanation:

Step 1: Cross-multiply.

Step 2: Divide both sides by 11.

The length of the microorganism that measure 5μm is equivalent to 0.005 mm

It is the transformation of a value expressed in one unit of measurement into an equivalent value expressed in another unit of measurement of the same nature.

To solve this problem the we have to convert the units with the given information.

1mm is equal to 1000 μm

5μm * (1 mm/1000μm) = (5*1) / 1000 = 5/1000 = 0.005 mm = 5x10^-3 mm

The length of the microorganism that measure 5μm is equivalent to 0.005 mm

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Based on the sequence, the number that is closest to 300 is 310

The sequence of numbers is given as

30, 70, 110, 150

The increment in the sequence is given as

40

This means that we keep increasing the numbers by 40

So, the other numbers in the sequence are

30, 70, 110, 150, 190, 230, 270, 310, 350, 390.....

The number 300 is between 270 and 310

However, 310 is closer to 300 than 270

Hence, the number that is closest to 300 is 310

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Complete question

The numbers in this sequence increases by 40 each time. this sequence is continues with the same rule which number will be closest to 300

30, 70, 110, 150

Answer:

the possible outcomes contain the same number of heads and tails are 70.

tell me if i am right

For each coin flip, there are 2 possible outcomes (heads or tails), so for 8 flips, there are \(2^8\) = 256 possible outcomes.

When flipping a coin, there are two possible outcomes: heads or tails. So, for one flip, there are two possibilities. For two flips, there are two possibilities for the first flip and two possibilities for the second flip, making a total of 2x2=4 possible outcomes.

For three flips, there are two possibilities for the first flip, two for the second flip, and two for the third flip, making a total of 2x2x2=8 possible outcomes.

Similarly, for four flips, there are 2x2x2x2=16 possible outcomes, and for five flips, there are 2x2x2x2x2=32 possible outcomes.

Continuing this pattern, for eight flips, there are 2x2x2x2x2x2x2x2 = 256 possible outcomes.

This can also be calculated using the formula for combinations, which is \(n! / (r!(n-r)!)\) where n is the number of total flips (in this case, 8) and r is the number of heads that we want to get.

For example, to find the number of outcomes where we get exactly 3 heads and 5 tails, we would use the formula:

\(8! / (3!5!) = 56\)

So, there are 56 possible outcomes where we get exactly 3 heads and 5 tails.

In summary, for each coin flip, there are 2 possible outcomes (heads or tails), so for 8 flips, there are \(2^8 = 256\) possible outcomes.

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The probability that a randomly selected score will be less than 89 is 0.9821.

The probability that a randomly selected score will be less than 89 can be found using the z-score formula.
The z-score formula is:
z = (x - μ) / σ
Where x is the score we are interested in, μ is the mean of the distribution, and σ is the standard deviation of the distribution.
Plugging in the values given in the question, we get:
z = (89 - 72.8) / 7.7
z = 16.2 / 7.7
z = 2.10
Now we can use a z-table to find the probability that a randomly selected score will be less than 89.
Looking up a z-score of 2.10 on a z-table, we find that the probability is 0.9821.

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Answer:

Ángulo agudo

Es cualquier ángulo que mida más de 0 grados pero menos de 90 grados. Un ángulo agudo cae en algún lugar entre inexistente y un ángulo recto.

Acute angle

It's any angle that measures more than 0 degrees but less than 90 degrees. An acute angle falls somewhere between nonexistent and a right angle.

If we make f the subject of the formula, then f = (3 + 4d)/(3 + d)

We are given a formula in which d = 3(1 - f)/(f - 4). We have to make f the subject of the formula. To make a variable the subject of the formula, we isolate it to the left-hand side of the equation with no other variable written along with it.

So, in this question, we will isolate f on the left-hand side of the equation and we will make f the subject of the formula. We are given that

d = \(\frac{3(1-f)}{f - 4}\)

When we cross-multiply this equation, we get

d(f -4) = 3(1 -f)

fd - 4d = 3 - 3f

Combine all the terms having variable f to the left-hand side.

fd + 3f = 3 + 4d

f( d + 3) = 3 + 4d

f = \(\frac{(3 + 4d) }{(3 + d)}\)

Therefore, by making f the subject of the formula, we get

f = (3 + 4d)/(3 + d)

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The given distribution is (A) Bimodal skewed as the distribution has 2 humps.

As the given graph has 2 humps, we can conclude that the given distribution is an (A) Bimodal skewed.

Therefore, the given distribution is (A) Bimodal skewed as the distribution has 2 humps.

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The null hypothesis was not refuted. There is insufficient evidence to support the assertion that male commute times are considerably longer than female commute times (P-value=0.155).

The data is:

Males n1 = 237

M1 = 31.6

s1 = 24.0

Females n2 = 263

M2 = 29.3

s2 = 24.3

This is a hypothesis test for a population mean differences.

According to the assertion, the average daily travel time for men is much longer than the average daily commuting time for women.

The null and alternative hypotheses are then:

\(H_{0}\) = \(\mu_m\) - \(\mu_f\) = 0

\(H_{a}\) = \(\mu_m\) - \(\mu_f\) > 0

The threshold of significance is set at 0.05.

The mean of Sample 1 (males) is 31.6, with a standard deviation of 24.

Sample 2 (females) does have a mean of 29.3 and a standard deviation of 24.3 (n2 = 263).

Md = 2.3 is the difference in sample means.

\(M_{d}\) = \(M_{m}\) - \(M_{f}\)

\(M_{d}\) = 31.6 - 29.3

\(M_{d}\) = 2.3

The formula to calculate the estimated standard error of the difference between the means:

\(S_{Md}\) = √(((σ1)² ÷ (n1)² + ((σ2)² ÷ (n2)²)

\(S_{Md}\) = √((24)² ÷ (237)²) + (24.3)² ÷ (263)²))

\(S_{Md}\) = √(0.0102 + 0.0085)

\(S_{Md}\) = 0.136

the t-statistic as,

t = ((\(M_{d}\) - ( \(\mu_m\) - \(\mu_f\) )) ÷ \(S_{Md}\))

t = ((2.3 - 0) ÷ 0.136)

t = 1.611

The degrees of freedom for this test are:

df = n1 + n2 - 1 = 237 + 263 - 1

df = n1 + n2 - 1 = 499

Because this is a right-tailed test with 499 degrees of freedom and t = 1.611, the P-value is determined as follows (using a t-table):

P - value = P(t > 1.611) = 0.155

The impact is not significant since the P-value (0.155) is greater than the significance threshold (0.05).

As a result, the null hypothesis was not rejected.

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Answer:

B. 3 3/4

Step-by-step explanation:

3/8 * 10 = 30/8

30/8 = 3 3/4

Step-by-step explanation:

Ex: Twelve of the students in the school choir like to sing solos. These 12 students make up 24% of the choir. How many students are in the choir ?

Write a proportion comparing the percent to the ratio of part to whole.

We know that 12 students represent 24%.

Find the multiplication factor.

Since 12 x 2 = 24, find what number times 2 is equal to 100.

Find the denominator.

12/50  =  24/100

(Since 50 · 2  =  100, the denominator is 50)

Hence, there are 50 students in the choir.

The vector equation with parameter t for the line of intersection of the planes x + y + z = 2 and x + z = 0 is r(t) = <0, 2, 0> - t<1, -1, 0>.

To find a vector equation with parameter t for the line of intersection of the planes x + y + z = 2 and x + z = 0, we can solve the system of equations formed by the planes.
First, let's solve for y in terms of x and z from the equation x + y + z = 2. Rearranging the equation, we have y = 2 - x - z.
Now, substitute this expression for y in the equation x + z = 0. We have x + (2 - x - z) + z = 2, which simplifies to 2 - z = 2.
Solving for z, we find z = 0.
Substituting z = 0 into the equation x + z = 0, we have x = 0.
Now that we have the values of x, y, and z, we can form a vector equation for the line of intersection as follows:
r(t) =  = <0, 2 - x - z, 0> = <0, 2, 0> - t<1, -1, 0>.

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Answer:

39.3

Step-by-step explanation:

81.6 - 3 = 78.6

78.6 ÷ 2 = 39.3

The calculator provides a tool to help the user convert the repeating decimals to fractions.

A decimal is composed of a whole number and a fraction and is separated by a decimal point.

A fraction is a part of a number. It shows us the parts of a whole of something.  

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She uses 1/2 quart of yellow paint for every 9/2 quarts of blue paint. Then, she uses 1/2 quart of yellow paint for every 1/2 + 9/2 = 10/2 = 5 quart of paint.

We can use the next proportion:

Solving for x:

She uses 1/10 quart of yellow paint for every quart of paint

Answer: 53

Step-by-step explanation:

3) $1,899.81

4) $1,899.26

6) $17,150

Yes, an object can have zero velocity and immobile be accelerating together. While participating the object, you will find that the object will continue to move ahead for some time and then stops instantly.

Then the object will start to move in the reverse direction.

at all the velocity is constant, the acceleration is zero. For example, a car traveling at a constant 80 km/h in a straight line has nonzero velocity and zero acceleration.

If acceleration is 0, the velocity is not converted. If the velocity is constant (0 acceleration) then the object will continue needing slowing down or speeding up.

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Answer:

\( {(x - 3) + (y - 5)}^{2} = 64\)

The center is (3, 5), and the radius is 8.

Answer:

30 18+12=30

Step-by-step explanation:

The only true answer is a. W is a part of space \(R^{2}\)

A vector space is a mathematical structure that consists of a set of objects called vectors, along with two operations: vector addition and scalar multiplication. The set of vectors is typically denoted by V, and the underlying field of scalars is denoted by F. The vector addition operation takes two vectors from V and returns a new vector in V, while scalar multiplication takes a scalar from F and a vector from V and returns a new vector in V.

a. W is a subspace of \(R^{2}\) .

b. False. W is closed under addition. If u and v are in W, then each component of u and v is rational. Therefore, the sum of the corresponding components of u and v is also rational, so the sum of u and v is in W.

c. False. W is closed under scalar multiplication. If u is in W and r is a rational number, then each component of ru is rational. Therefore, ru is in W.

Therefore, the only correct statement is a. W is a subspace of \(R^{2}\)

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When a scientific team uses special equipment to measures the pressure under water and finds it to be 159 pounds per square foot, the depth is around 70 feet.

It's important to note that pressure increases as depth increases under water. The pressure in pounds per square foot, P, at a depth of d feet is given by the equation:

P = 0.433d + 14.7 where 0.433 is a constant for water, and 14.7 is the pressure at the surface.

In order to find the depth at which the pressure is 159 pounds per square foot, we need to solve the equation for

d.P = 0.433d + 14.7

Substitute P = 159 and solve for

d.159 = 0.433d + 14.7

Subtract 14.7 from both sides.

144.3 = 0.433d

Divide both sides by 0.433 to isolate d.

d ≈ 333.06

Hence, when a scientific team uses special equipment to measures the pressure under water and finds it to be 159 pounds per square foot, the depth is around 70 feet.

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The partial fraction decomposition of X₁(s) is (A / (s - r₁)) + (B / (s - r₂)) + (C / (s - r₃)).

To express the fraction X₁(s) = (s² + 4s + 3s) / (s³ + 5s² + 2s + 8) in partial fraction form, we need to decompose the rational function into simpler fractions. The general form of a partial fraction decomposition is:

X₁(s) = (A / (s - r₁)) + (B / (s - r₂)) + (C / (s - r₃))

where A, B, and C are constants, and r₁, r₂, and r₃ are the roots of the denominator polynomial.

To find the roots of the denominator, we set the denominator equal to zero and solve for s:

s³ + 5s² + 2s + 8 = 0

The roots of this cubic polynomial can be found using numerical methods or factoring techniques. Let's assume the roots are r₁, r₂, and r₃.

Then, we can express X₁(s) in partial fraction form as:

X₁(s) = (A / (s - r₁)) + (B / (s - r₂)) + (C / (s - r₃))

where A, B, and C are the constants we need to determine.

To find the values of A, B, and C, we can multiply both sides of the equation by the denominator (s³ + 5s² + 2s + 8) and simplify. This will give us a system of equations that we can solve to find the values of A, B, and C.

(s³ + 5s² + 2s + 8) * X₁(s) = A + B(s - r₁) + C(s - r₂)(s - r₃)

Expanding the left side and comparing coefficients, we get:

s² + 4s + 3s = A + (B + C) * s² + (-B * (r₁ + r₂ + r₃) + C * (r₁r₂ + r₁r₃ + r₂r₃)) * s + B * r₁r₂ + C * r₁r₃ * r₂r₃

By comparing the coefficients of the powers of s on both sides, we obtain a system of equations. Solving this system will give us the values of A, B, and C.

Once we have the values of A, B, and C, we can substitute them back into the partial fraction expression:

X₁(s) = (A / (s - r₁)) + (B / (s - r₂)) + (C / (s - r₃))

This completes the partial fraction decomposition of X₁(s).

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Answer:

Hello,

Answer B

Step-by-step explanation:

\(C(x)=300*x^2+200*x\\\\R(x)=-0.5*x^3+900*x^2-500*x+400\\\\\\P(x)=R(x)-C(x)\\\\=-0.5*x^3+900*x^2-500*x+400-(300*x^2+200*x)\\\\=-0.5x^3+900x^2-300x^2-500x-200x+400\\\\=-0.5x^3+600x^2-700x+400\\\)

Answer: 6 feet tall.

Step-by-step explanation:

If the boy who is 3 feet tall casts a shadow that is 7 feet long and then another person casts a shadow that is 14 feet long that would mean that he is 6 feet because 7+7 is 14 so all you would have to do it 3+3 to get your answer.