work out 4 1/2 - 1 1/3

Answer:

no solution

Step-by-step explanation:

Equating the right sides of both equations, that is

6x + 9 = 6x + 2 ( subtract 9 from both sides )

6x = 6x - 7 ( subtract 6x from both sides )

0 = - 7 ← not possible

This indicates there is no solution to the system of equations

Answer:

b

Step-by-step explanation:

Answer:

the answer is 66feet

Step-by-step explanation:

can i get a brainliest plz

Answer:

x=6

Step-by-step explanation:

Answer: 12.81 (look at the image for the explanation)

Step-by-step explanation:

Answer:

slope = 2

Step-by-step explanation:

Answer:

151.2/24 or 6.3 miles per day.

Let's restate the question, how many miles per day did Mr. Adams drive? When we see per we know it's a rate and we use fractions to solve. If you have a tough time with this think of MPH, or miles per hour also written m/h or Miles/hour.

We need to solve for miles/day. We know Mr Adams drove 151.2 miles in 24 days. Let's rewrite that as 151.2miles/24day

Now divide. 6.3 miles/day.

Answer:

35

Step-by-step explanation:

2x = 2 times 4.5

    = 9

5y = 5 times 5.2

    = 26

2x + 5y is 9 + 26

= 35

35

Steps

2x + 5y

x = 4.5

y = 5.2

a. Substitute

2(4.5) + 5(5.2)

b. Multiply

9 + 26

c. Add

35

Therefore, the answer is 35.

The correct answer is A.\(\((5 \frac{1}{\overline{9}}) \times (-0.\overline{3})\)\), as it involves the multiplication of two rational numbers, resulting in a rational number.

Therefore, the product of these two rational numbers in option A will yield a rational number.

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The average speed in miles per hour is 1.67 miles/hour

What is her average speed?

Average speed is calculated by dividing distance by time (eg miles/hour).

Given that, Noreen can walk 1/3 mile in 12 minutes.

We need to find her average speed.

We know that the total distance covered divided by the total time taken is called the average speed of Noreen.

Mathematically, it is given by :

v=d/t

t = 12 minutes = 0.2 hours

v=(1/3 mile)/0.2 hours

v = 1.67   miles/hour

So, the average speed of Noreen is 1.67  miles/hour. Hence, this is the required solution.

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Answer:

Step-by-step explanation:

The rule is that opposite angles are supplementary. Therefore, angle A plus angle C = 180:

angle A + 43 = 180 and

angle A = 180 - 43 so

angle A = 137

a). We have proved all the given conditions.

b). It is true that condition 3 holds for all regular languages L1 and L2.

(a) Regular languages L1 and L2 can be suggested as follows:

Let \(L_1={0^{(n+1)} | n\geq 0}\)

and

\(L_2={1^{(n+1)} | n\geq 0}\)

We have to prove three conditions:1. L1 ⊈ L2:

The given languages L1 and L2 both are regular but L1 does not contain any string that starts with 1.

Therefore, L1 and L2 are distinct.2. L2  L1:

The given languages L1 and L2 both are regular but L2 does not contain any string that starts with 0.

Therefore, L2 and L1 are distinct.3. (L1 ∪ L2)* = L1* ∪ L2*:

For proving this condition, we need to prove two things:

First, we need to prove that (L1 ∪ L2)* ⊆ L1* ∪ L2*.

It is clear that every string in L1* or L2* belongs to (L1 ∪ L2)*.

Thus, we have L1* ⊆ (L1 ∪ L2)* and L2* ⊆ (L1 ∪ L2)*.

Therefore, L1* ∪ L2* ⊆ (L1 ∪ L2)*.

Second, we need to prove that L1* ∪ L2* ⊆ (L1 ∪ L2)*.

Every string that belongs to L1* or L2* also belongs to (L1 ∪ L2)*.

Thus, we have L1* ∪ L2* ⊆ (L1 ∪ L2)*.

Therefore, (L1 ∪ L2)* = L1* ∪ L2*.

Therefore, we have proved all the given conditions.

(b)It is true that condition 3 holds for all regular languages L1 and L2.

This can be proved by using the fact that the union of regular languages is also a regular language and the Kleene star of a regular language is also a regular language.

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Answer:

she needs to sell 243 of them

Step-by-step explanation:

hope this helps

b) (f o g)=(1-5x^2)^3, all real numbers

The predicted score of a movie will be 0.17225 points

The correct option is (b).

Given,

The regression equation y  = 0.145x + 0.136

where x represents the budget of a movie (in millions of dollars).

To find the what is the predicted score of a movie that has a $250,000

budget?

Now, According to the question:

The regression equation is:

y = 0.145x + 0.136

x = 0.25 millions

Substitute the value of x in above regression equation:

y = 0.145 x 0.25 + 0.136

y = 0.17225 points.

Hence, The predicted score of a movie will be 0.17225 points

The correct option is (b).

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Answer:

i just did the test, the person above me is correct.

Step-by-step explanation:

Answer

\(y=-3x+10\)

This is the slope-intercept form.

Step-by-step explanation:

Answer:

----------------------

The bottom part is a cylinder with:

The top is a cone with:

Find the total volume of the solid by adding up the volumes.

Volume of the cylinder:

Volume of the cone:

Volume of the solid:

The volume of the solid is 2880.43 ft³ .

The object is made up of a cylinder and a cone. The volume of the object would be the sum of the volume of the cylinder and the volume of the cone.

Volume of the cylinder = πr²h

Where:

π = pi = 3.14

r = radius = diameter / 2 = 16 / 2 = 8

h = height = 12.5

3.14 x 8² x 12.5 = 2512 ft³

Volume of a cone = 1/3 πr²h

H = 18 - 12.5 = 5.5 feet

1/3 x 3.14 x 8² x 5.5 = 368.43 ft

Volume of the solid = 2512 ft³ + 368.43 ft = 2880.43 ft³

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Using the principle of Virtual Work, the horizontal displacement of point C in the truss can be calculated. Given the dimensions of the members, their cross-sectional area, material properties, and the applied load, the virtual work approach allows us to determine the displacement.

To calculate the horizontal displacement of point C, we can use the principle of Virtual Work. This principle states that the work done by external loads is equal to the work done by internal forces due to deformation. By applying a virtual displacement to the truss and equating the work done by the external load to the work done by the internal forces, we can solve for the displacement.

The virtual work equation can be expressed as: ∑(F_i * δ_i) = 0, where F_i represents the internal forces in the members and δ_i represents the virtual displacements.

In this case, the horizontal load of 100kN applied to node C will induce internal forces in the truss members. By assuming a small horizontal displacement at point C and calculating the internal forces in the members, we can solve for the displacement using the virtual work equation.

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The ranking of resistors would be, R1 < R3 < R2

The larger the time constant T = RC,  the more time it takes for the capacitor to discharge.

So the more the resistance the more time it takes for the capacitor to discharge.

In the figure, the one with R2 will take the longest time for Vc to be zero. Then R3 will take less time than R2 and R1 will take smallest time to discharge. So R2 is largest followed by R3 and R1 is smalllest.

So the ranking would be, R1 < R3 < R2

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The equation that expresses the relationship between the two variables is 6x = y.

Let's assume that Chad runs 'x' laps, then Kyle runs 6 times as many laps as Chad, which means Kyle runs 6x laps. Therefore, the equation expressing the relationship between Chad's laps and Kyle's laps can be written as:

Kyle's laps = 6 times Chad's laps

or                              

6x = the number of laps Kyle runs

So, the equation is: 6x = y, where 'x' represents the number of laps Chad runs i.e. he ran six times more, and 'y' represents the number of laps Kyle runs i.e. he ran six times lesser than Chad.

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a) i)P(X > 18)= 0.65542

ii)P(7 < X < 15)=0.154

b)The value of a using the standard normal table or a calculator is 12.875

c)the value of b using the standard normal table or a calculator is 9.8

a) Let X be the normal random variable with mean μ = 20 and standard deviation σ = 5. We have to find P(X > 18) and P(7 < X < 15).

(i) P(X > 18)

This can be calculated using the standard normal table or a calculator as follows:

z = (18 - μ)/σ

= (18 - 20)/5

= -0.4

P(X > 18) = P(Z > -0.4)

= 1 - P(Z ≤ -0.4).

Using the standard normal table or a calculator, P(Z ≤ -0.4) = 0.34458

Therefore, P(X > 18) = 1 - 0.34458 = 0.65542

(ii) P(7 < X < 15). This can be calculated using the standard normal table or a calculator as follows:

z₁ = (7 - μ)/σ

(7 - 20)/5 = -2.6z₂

(15 - μ)/σ = (15 - 20)/5

= -1

P(7 < X < 15) = P(-2.6 < Z < -1)

= P(Z < -1) - P(Z < -2.6)

Using the standard normal table or a calculator,

P(Z < -1) = 0.15866P(Z < -2.6) = 0.00466

Therefore, P(7 < X < 15) = 0.15866 - 0.00466 = 0.154

b) We have to find the value of a such that

P(20 - a < X < 20 + a) = 0.99.

This can be calculated as follows:

z₁ = (20 - a - μ)/σ

= (20 - a - 20)/5

= -a/5z₂ = (20 + a - μ)/σ

= (20 + a - 20)/5 = a/5

We need to find a such that

P(z₁ < Z < z₂) = 0.99

Using the standard normal table or a calculator,

P(Z < z₂) - P(Z < z₁) = 0.99P(Z < a/5) - P(Z < -a/5) = 0.99

This can be rewritten as

P(Z < a/5) - [1 - P(Z < a/5)] = 0.99P(Z < a/5) - P(Z < -a/5) = 0.995

From the standard normal table or a calculator,

P(Z < 2.575) = 0.995P(Z < -2.575) = 0.005

Therefore,

2.575 = a/5 or -2.575 = -a/5a = 12.875

Therefore, the value of a is 12.875.

c) We have to find the value of b such that P(20 - b < X < 20 + b) = 0.95.

This can be calculated as follows:

z₁ = (20 - b - μ)/σ

= (20 - b - 20)/5

= -b/5z₂

= (20 + b - μ)/σ

= (20 + b - 20)/5 = b/5

We need to find b such that

P(z₁ < Z < z₂) = 0.95

Using the standard normal table or a calculator,

P(Z < z₂) - P(Z < z₁) = 0.95P(Z < b/5) - P(Z < -b/5) = 0.95

This can be rewritten as

P(Z < b/5) - [1 - P(Z < b/5)] = 0.95P(Z < b/5) - P(Z < -b/5) = 0.975

From the standard normal table or a calculator,

P(Z < 1.96) = 0.975P(Z < -1.96) = 0.025

Therefore,1.96 = b/5 or -1.96 = -b/5b = 9.8

Therefore, the value of b is 9.8.

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The expression for the quarters you take is (1 - 0.50) x 28

The money you have left is $3.50.

The expression that is used to represent the total number of quarters is:

Total number of quarters = number of quarters you have x ( 1 + percent you find/100)

Total number of quarters = 20 x (1 + 40/100)

Total number of quarters = 20 x 1.40 = 28 quarters

Number of quarters you have left = (1 - percentage spent/100) x number of quarters

= (1 - 50%/100) x 28

(1 - 0.50) x 28

0.50 x 28 = 14 quarters

Value of 14 quarters in dollars = 14 x 0.25 = $3.50

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The linear transformations t1 and t2 are given by t1(x1, x2) = 2x1x2 and t2(x1, x2) = 3x1 + 2x2.

The linear transformations t1 and t2 are defined as functions that take in a pair of coordinates (x1, x2) and produce a new pair of coordinates. For t1, the new pair of coordinates is obtained by multiplying the first coordinate, x1, with the second coordinate, x2, and then multiplying the result by 2. So, t1(x1, x2) = 2x1x2.

Similarly, for t2, the new pair of coordinates is obtained by multiplying the first coordinate, x1, by 3 and adding it to the product of the second coordinate, x2, and 2. Hence, t2(x1, x2) = 3x1 + 2x2.

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Answer:

point D y F ese el la respuesta

Answer:

A. 136 sq. cm.

Step-by-step explanation:

First find the area of the rectangle:

16 times 7 is 112

13-7 is 6

16-8 is 8

The formula for the area of a triangle is ab/2

thus:

6 times 8 is 48/2

Which is 24

Add 112 with 24

Which is 136

Thus the answer is A. 136 sq. cm.

Hope this helps!

42 kg = 92.59684 lbs.

Kilograms (kg) and pounds (lbs) are both units of measurement for weight, but they are not directly interchangeable. To convert a measurement of weight from kilograms to pounds, you will need to use a conversion factor.

1 kilogram is equal to 2.20462 pounds. 42 kilograms is equal to 92.59684 pounds. The conversion factor between kilograms and pounds is 1 kg = 2.20462 lbs.

To convert a measurement of weight from kilograms to pounds, you will multiply the number of kilograms by the conversion factor of 2.20462.

For example,

if you have a measurement of 42 kilograms, you would multiply 42 x 2.20462 to get 92.59684 pounds.

It's important to note that when measuring weight, it's important to use the same system of measurement as the requirement, as using the wrong measurements can greatly affect the outcome of the calculation. It's always good to know the conversion factors to make your calculations easier.

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Answer:

OP = 23

Step-by-step explanation:

• The diagonals of a parallelogram bisect each other , then

OP = MP , that is

3x - 4 = 2x + 5 ( subtract 2x from both sides )

x - 4 = 5 ( add 4 to both sides )

x = 9

Then

OP = 3x - 4 = 3(9) - 4 = 27 - 4 = 23

The standard deviation of the salaries for the company's 80 employees is calculated to be X, where X represents the numerical value of the standard deviation.

The standard deviation measures the dispersion or variability of a set of data points. In order to calculate the standard deviation, we need to first find the mean (average) of the salaries. Then, for each salary, we calculate the difference between the salary and the mean, square that difference, and sum up all the squared differences. Next, we divide the sum by the total number of salaries (80 in this case) minus 1 to obtain the variance. Finally, the standard deviation is obtained by taking the square root of the variance. This accounts for the fact that the squared differences are in squared units, while the standard deviation should be in the original units (currency in this case).

By following this process, we can find the standard deviation of the salaries for the 80 employees in the company. This value represents the measure of variability or spread in the salary distribution, providing insights into how salaries deviate from the mean.

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Answer: D, When the constants are perfect squares.

Step-by-step explanation:

the “best” method whenever the quadratic equation only contains x2 terms. That implies no presence of any x term being raised to the first power somewhere in the equation.

Hopefully this helps!

The given statement is false considering the given reasons that enlighten the statement's core meaning in contrast of the question.

The following reasons why the statement  is considered false are

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The apothem is the perpendicular distance from the center of a regular polygon to any one of its sides.

A closed, two-dimensional, flat or planar structure with straight sides is referred to as a polygon. Its sides do not bend in any way. A polygon's sides are also referred to as its edges. A polygon's vertices (or corners) are the places where two sides converge. Polygons and polyhedrons are two names for geometric shapes having three or more sides. The names of a few polygons are listed below. In order to link and develop projects and blockchains that are compatible with Ethereum, Polygon (MATIC), a cryptocurrency and technological platform, was introduced. A polygon is a fully closed, two-dimensional (2D), flat form with straight sides (all the sides are joined up). They must have straight sides. Any number of sides can be found in polygons.

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