What is X in feet

X= Ft

The sample indicates that the data does not provide sufficient evidence to support the claim that 20% of plants are infected.

This given test is a test for single sample proportion

The test hypothesis are:

\(H_{o} :p=0.20\), null hypothesis

\(H_{1} :p\neq 0.20\), alternative hypothesis

The test statistic fallows a standard normal distribution and is given by:

\(Z=\frac{x-p}{{\sqrt{p(1-p)/n} } }\)

p=0.20

X=47 plants

Sample size, n=500

x, is the sample mean:

x=X/n=47/500

x=0.094

So, test statistic is calculated as:

\(Z=\frac{0.094-0.20}{\sqrt{0.20(1-0.20)/500} }\)

Z=-5.93

From the z-table, the p-value associated with Z=-5.93 is approximately 0

The decision rule based on p-vale, is to reject the null hypothesis if p-value is less than confidence level

In this case, the p-value is very small and less than confidence level of 0.20, we therefore reject the null hypothesis or the claim

So we conclude that the data does not provide sufficient evidence to support the claim that 20% of plants are infected.

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Answer:

Q(3; 0)

Step-by-step explanation:

Let's y=0

4x=12

Devide both sides by 4 then x=3

Answer:

the answers are -243 and 729

Step-by-step explanation:

you multiply each by -3. 1x-3 gives you -3. -3x-3 gives you 9. -3x9 gives you -27. -27x-3 gives you 81. 81x-3 gives you -243 and -243x-3 gives you 729. i hope this helps.

The number of days spent or taken by assistant with work efficiency of 2 units per day to do the work alone is equals to the 7.5 days.

We have provide that there is a carpenter and his assistant can do a piece of work.

Number of days taken by both carpenter and his assistant to do a piece of work = 3 days.

Number of days taken by carpenter and to do the same piece of work alone = 5 days.

We have to determine number of taken by assistant and to do the same piece of work alone.

Let the required number of days that the assistant take to do the work alone be 'x days'. As we know, total available work units = LCM (3,5) = 15 units

Ability or efficiency of a person or man is calculated by dividing the total work units to the number of working days spent to do the work.

Now, Ability or efficiency of both carpenter and his assistant work together = 15/5

= 3 units/day

Similarly, Ability or efficiency of carpenter = 15/3

= 5 units/day

So, Ability or efficiency of assistant= 5 - 3 = 2 -(1)

Using efficiency formula, efficiency of assistant

= 15/x --(2)

from (1) and(2), 15/x = 2

=> 2x = 15

=> x = 7.5

Hence, required number of days are 7.5 days.

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Distinct value of x, y, z are will be 3

Consider the function will be f(x) = x3 - x2 - 2x +2 = ( x - 1 ) (x2 - 2 )

we have three real roots and ,

x + y + z = - 1/ (-1)

= 1 ,

1/x + 1/y + 1/z = -2 /(-2)

= 1

Consider the function

f(x) = x3 - x2 - 40 + 20.

Set the derivation equal 0 we get x = 4 and x = -10/3

are two local extrema. When x= 4 , f(x)<0,when x = -10/3 . f(x) >0 there are three real roots . we have x + y + z = 1 and 1/x + 1/y + 1/z = - (-40)/ 20 = 2

consider the function

f(x) = x3 - x2- 40x + 40/3 .

we still have same local extrema as (2) and we have x= 4 , f(x) < 0 and we

x= -10/3 , f(x) > 0 so there are three real roots. We have x+ y + z = 1 and 1/x + 1/y + 1/z = -(-40)/40/3 = 3

So, there are 3 distinct values

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Answer:

The regular costs 11 dollars each while the deluxe cost 23 each.

Step-by-step explanation:

You need to setup two equations.I used two variable for the prices of the types of pizzas because they are unknown.I used x for the cost of regular and y for the cost of deluxe.The equation I did are 10x+y=133 and 7x+9y=284.You need to solve one equation only.I solved the first one.

The volume of the balloon is 32π/3 ft³, and the rate at which the surface area is increasing is 16π square feet per minute.

The volume V of a balloon is given as V = (4/3)πr³, where r is the radius of the balloon.

Differentiating both sides of the equation concerning time t, we get

dV/dt = 4πr²(dr/dt).

Here, dV/dt represents the rate at which the volume is changing, which is 4 ft³/min as given in the problem.

the volume is 32π/3 ft³, we can substitute these values into the equation

4 = 4πr²(dr/dt)

To simplifying, we have

r²(dr/dt) = 1/π

The surface area A of a balloon, we can use the formula

A = 4πr².

Differentiating both sides of the equation concerning time t, we get dA/dt = 8πr(dr/dt).

We need to find dA/dt when V = 32π/3 ft³.

From the volume formula, we know that V = (4/3)πr³. Setting V = 32π/3, we can solve for r

(4/3)πr³ = 32π/3

r³ = 8

r = 2

Now, substitute r = 2 into the equation for dA/dt

dA/dt = 8π(2)(dr/dt)

Substituting the value of dr/dt from earlier

dA/dt = 8π(2)(1/π)

dA/dt = 16π

Therefore, when the volume of the balloon is 32π/3 ft³, the rate at which the surface area is increasing is 16π square feet per minute.

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To find the orthogonal trajectories of the family of curves y = 17kx, we need to follow some steps including differentiation or reciprocal etc.

Steps are:
Step 1: Differentiate the given equation with respect to x.
Differentiating both sides with respect to x, we have:
dy/dx = 17k

Step 2: Find the negative reciprocal of dy/dx.
The negative reciprocal of dy/dx is the slope of the curve orthogonal to the given family of curves: -(dx/dy) = -1/(17k)

Step 3: Solve the new differential equation.
Now, we need to solve the new differential equation: dx/dy = 1/(17k)

Notice that k is a constant, so let's rewrite the equation as: dx/dy = C, where C = 1/(17k)

Step 4: Integrate both sides of the equation.
Integrate dx/dy with respect to y:
∫(1) dx = ∫(C) dy

x = Cy + D, where D is the constant of integration.

Step 5: Express the equation in terms of y and x.
Now, substitute the original equation y = 17kx back into our orthogonal trajectory equation:

y = (1/C)(x - D)

This is the equation for the orthogonal trajectories of the family of curves y = 17kx, where C and D are constants related to k.

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Answer:

q = 4.9

m∠R = 27.1°

m∠S = 136.9°

Step-by-step explanation:

To solve the triangle we will use the cosine rule and the sine rule

In the given triangle

∵ q is the opposite side of ∠Q

∵ s is the opposite side of ∠S

∵ r is the opposite side of ∠R

∵ m∠Q = 16°

∵ r = 8 and s = 12

→ By using the cosine rule to find q

∴ q² = r² + s² - 2 r s cos∠Q

→ Substitute the values of r, s, and ∠Q in the rule above

∵ q² = (8)² + (12)² - 2(8)(12)cos(16°)

∴ q² = 23.43775438

→ Take √ for both sides

∴ q = 4.841255455

→ Round it to the nearest tenth

∴ q = 4.9

→ To find angles R and S we will use the sine rule

∵ \(\frac{r}{sin(R)}\) =\(\frac{q}{sin(Q)}\) = \(\frac{s}{sin(S)}\)

→ Use the first two ratios to find m∠R

∵ \(\frac{8}{sin(R)}\) = \(\frac{4.841255455}{sin(16)}\)

→ By using cross multiplication

∴ 4.841255455 × sin(R) = 8 × sin(16)

→ Divide both sides by 4.841255455

∴ sin(R) = 0.4554807874

→ Use \(sin^{-1}\) to find m∠R

∵ m∠R =  \(sin^{-1}\) (0.4554807874)

∴ m∠R = 27.0958732

→ Round it to the nearest tenth

∴ m∠R = 27.1°

∵ The sum of the measures of the angle in a triangle is 180°

∴ m∠S + m∠Q + m∠R = 180°

→ Substitute the values of m∠Q and m∠R

∵ m∠S + 16° + 27.1° = 180°

∴ m∠S + 43.1 = 180

→ Subtract 43.1 from both sides

∴ m∠S = 136.9°

The values of x and y using the concept of similar figures are:

y = 166 and x = 3.33 units

Two triangles are said to be similar if their corresponding side proportions are the same and their corresponding pairs of angles are the same. When two or more figures have the same shape but different sizes, such objects are called similar figures.  

We are told that Polygon ABCD is similar to Polygon EFGH and as such applying the similar figure definition above, we can say that:

∠B = ∠F

Thus:

∠B = 360 - (61 + 116 + 90)

∠B = 360 - 267

∠B = 93°

Thus:

y - 73 = 93

y = 166

Using the concept of similar figures, then:

6/4 = 5/x

x = 20/6

x = 3.33 units

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Answer:

The answer is 5

Step-by-step explanation:

All the edges of a cube have the same length, and the volume of a cube is the length of an edge taken to the third power. So the length of the edge of a cube with a volume of 125 is 5.

The volume of the larger cube is 274.62 cubics if the small cube has a volume of 125 in 3. Its side length is 1.5 inches less than a second, larger cube.

It is defined as three-dimensional geometry that has six square faces and eight vertices.

It is given that:

A small cube has a volume of 125 in 3. Its side length is 1.5 inches less than a second, larger cube.

As we know, the volume of the cube is:

v = a³

v is the volume of the small cube and a is the side length.

a³ = 125

a = 5 in

a = A - 1.5

A is the side length of the second larger cube

5 = A - 1.5

A = 6.5 inches

The volume of the larger cube V = A³

V = (6.5)³ = 274.62 cubic in

Thus, the volume of the larger cube is 274.62 cubics in if the small cube has a volume of 125 in 3. Its side length is 1.5 inches less than a second, larger cube.

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Answer:

D

Step-by-step explanation:

fastest way to find out the answer is to replace each solution with the xs of the equation and see if it is Equal to 4. the only solution that is equal to 4 is D)1/3

Answer:

Part A: so that no single branch has to much power

Part B: "Each branch of government must check the actions of the other two branches to prevent one branch from having too much power."

Answer:

Part A is the first choice and part B is the second choice

Answer:

The answer is C. Quadrant 3.

Step-by-step explanation:

Looking up a Unit Circle. We can see that 5pi/4 is in quadrant 3.

5pi/4 is also if in degree angle as 225°

Connect the points where the first arc crosses the triangle's base and the second arc intersects the base of the triangle with the straightedge to create the triangle's third side, BC.

Generally, To accurately construct triangle ABC, you will need a straightedge (such as a ruler) and a protractor. Here are the steps to follow:

Use the straightedge to draw a straight line segment of length 8 cm, which will represent side AB. This line segment will be the base of the triangle.

Place the point of the protractor at one end of the line segment and draw an arc that intersects the other end of the line segment.

Measure the angle formed by the line segment and the arc using the protractor. The measure of this angle should be 70 degrees.

Without changing the position of the protractor, draw another arc that intersects the first arc and the base of the triangle.

Use the straightedge to connect the point where the second arc intersects the base of the triangle to the point where the first arc intersects the base of the triangle. This will form the third side of the triangle, AC.

Finally, use the straightedge to draw the third side of the triangle, BC, by connecting the point where the first arc intersects the base of the triangle to the point where the second arc intersects the base of the triangle.

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Answer:

19.87

Step-by-step explanation:

Cosine of 25° = 0.906 = x/18

so x= 19.87

Answer:

x < 4

Step-by-step explanation:

Step 1: Simplify both sides of the inequality.

Step 2: Subtract x from both sides.

Step 3: Subtract 6 from both sides.

Step 4: Multiply both sides by 4/(-1).

Answer:

to the nearest hundreths or any one

Step-by-step explanation:

\( \frac{ - 3}{5} \\ \)

because , in the third quadrant , the value of cos is negative. Moreover , we can find the third side of the triangle using Pythagoras theorem.

then ,

\( \cos(\theta) = \frac{base}{hypotenuse} \\ \\ \dashrightarrow \: \cos(\theta) = \frac{ - 3}{5} \)

hope helpful.

The answer is cos 0 = -3/5

Given :

tan 0 = 4/3 and is in the 3rd quadrant

this implies that both the perpendicular and base are negative.

Perpendicular = -4

Base = -3

Hypotenuse = \(\sqrt{(perpendicular)^{2} + (base)^{2} }\)

Hypotenuse = \(\sqrt{(-4)^{2} + (-3)^{2} }\)

Hypotenuse = \(\sqrt{25} = 5\)

cos 0 = \(\frac{Base}{Hypotenuse}\)

cos 0 = -3/5

Therefore, cos 0 = -3/5

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The area of the region bounded by the curve 2x = y² + 1 and the y-axis using horizontal strips is 0 units squared, as there is no intersection with the y-axis.

To find the area of the region bounded by the curve 2x = y² + 1 and the y-axis using horizontal strips, we can integrate the width of the strips with respect to y over the interval where the curve intersects the y-axis.

The given curve is 2x = y² + 1, which can be rewritten as x = (y² + 1)/2.

To determine the interval of integration, we need to find the y-values where the curve intersects the y-axis. Setting x = 0 in the equation x = (y² + 1)/2, we get 0 = (y² + 1)/2, which implies y² + 1 = 0. However, this equation has no real solutions, meaning the curve does not intersect the y-axis.

Since there is no intersection with the y-axis, the area bounded by the curve and the y-axis is zero. Therefore, the area of the region is 0 units squared.

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The mean if the scores was misread at 94 but it was 69 is 87.5

Mean is also known as average. It is mathematically represented as:

Mean  = Sum of data/Sample space

Given the following parameters

Mean = 88

Sample size = 50

Substitute

88 = Sum/50

Sum = 88(50)

Sum = 4400

If one of the scores was misread at 94 but it was 69, hence;

Sum + (94-69) = 4400
Sum + 25 = 4400
Sum = 4400 - 25
Sum = 4331
New mean = 4375/50
New mean = 87.5

Hence the mean if the scores was misread at 94 but it was 69 is 87.5

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Answer:

Step-by-step explanation:

It would be 2.

8/4=2

10^(4-4)=10^0 or 1

2*1=2

Answer:

16

Step-by-step explanation:

(fog)x=f{g(x)}

=f(x-2)

=(x-2)^2

So,

(fog)(-2)=(-2-2)^2

=-4^2

=16

Your friend has only a 10% chance of winning one of the prizes, given that you win one of the prizes. Then the probability that both you and your companion will win a prize in this challenge is 3%. 

Let's begin by calculating the likelihood of you winning a prize, which is given as 30% or 0.3. The likelihood of your companion winning a prize is given as 20% or 0.2. In the event that you win a prize, at that point, the likelihood of your companion winning a prize diminishes to 10% or 0.1. Ready to speak to this conditional likelihood as P.

Presently, ready to utilize the equation for conditional likelihood to discover the likelihood of both you and your companion winning a prize.

P(You and Companion both win a prize)

= P(You win a prize) x P(Friend wins a prize|You win a prize)

= 0.3 x 0.1

= 0.03 or 3%.

thus, the likelihood that both you and your companion will win a prize in this challenge is 3%. 

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As the spacing between joists increases, the maximum span for any board size will B. decrease only. This is because the wider the spacing between joists, the more weight and pressure will be placed on the boards that are spanning the gap between them.

This means that the boards will need to be stronger in order to support the weight without bending or breaking.
If the boards are not strong enough, they may sag or bow under the weight, which can create safety hazards or damage to the structure. Therefore, it is important to use the appropriate board size and spacing between joists for any given application in order to ensure structural integrity and safety.
In summary, increasing the spacing between joists will result in a decrease in the maximum span for any board size, as the boards will need to be stronger in order to support the weight and pressure. It is important to choose the right board size and joist spacing to maintain the structural integrity and safety of the building or structure.

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The candy store will use 103 grams of sugar in 10 hours.

To find out how many grams of sugar the store will use in 10 hours, we can simply multiply the amount of sugar used in one hour (10.3 grams) by the number of hours (10).

To solve the problem, we use a simple multiplication formula: the amount used per hour (10.3 grams) multiplied by the number of hours (10) to find the total amount of sugar used in 10 hours.

We can interpret this problem using a rate equation: the rate of sugar usage is 10.3 grams/hour, and the time period is 10 hours. Multiplying the rate by the time gives the total amount of sugar used.

So the calculation would be:

10.3 grams/hour x 10 hours = 103 grams

Therefore, the candy store will use 103 grams of sugar in 10 hours.

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Answer:

-52 is the 20th term

Step-by-step explanation:

Answer:

Step-by-step explanation: