Help pls i need to get my homework done

Answer: 25 grams

Step-by-step explanation: 435-410

Answer:

D

Step-by-step explanation:

the awnser would be d

The awnser would be d because there is no number sequences to make a variable because it is just telling you that mar rented the jet ski

The null and alternative hypotheses for this hypothesis test is H₀ : p = 0.93,  Hₐ : p > 0.93.

A hypothesis in a scientific context, is a testable statement about the relationship between two or more variables or a proposed explanation for some observed phenomenon.

Null and alternative hypotheses are used in statistical hypothesis testing. The null hypothesis of a test always predicts no effect or no relationship between variables, while the alternative hypothesis states your research prediction of an effect or relationship.

Let 'p' be the population proportion.

Given statement : The new brand of seeds advertises that 93% of the seeds germinate, which is higher than the germination rate of the seeds she is currently using.

Since null hypothesis shows that there is no significant difference between the quantities where as alternative hypothesis believes that there is some  difference,

Hence, the null and alternative hypotheses for this hypothesis test will be :-  H₀ : p = 0.93

          Hₐ : p > 0.93

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The average value of the function f(x, y) = 1/(xy) over the region R = {{(x, y): 1 ≤ x ≤ 4, 1 ≤ y ≤ 4}} can be found by calculating the double integral of f(x, y) over the region R and dividing it by the area of R. The average value of f(x, y) over R is approximately 0.356.

To find the average value of f(x, y) over the region R, we need to calculate the double integral of f(x, y) over R and divide it by the area of R.

The double integral of f(x, y) over R can be written as:

∬R (1/(xy)) dA

Where dA represents the infinitesimal area element.

To evaluate this integral, we integrate with respect to y first, and then with respect to x, using the given bounds of x and y:

∬R (1/(xy)) dA = ∫[1 to 4] ∫[1 to 4] (1/(xy)) dy dx

Integrating with respect to y:

∫[1 to 4] (ln|x|/x) dx

Next, we integrate with respect to x:

∫[1 to 4] (ln|x| - ln(1))/x dx = ∫[1 to 4] ln|x|/x dx

Evaluating the integral:

[ln|x|²/2] evaluated from 1 to 4 = (ln|4|²/2) - (ln|1|²/2) = (ln(16)/2) - 0 = ln(16)/2

Now, to find the area of R, we use the formula for the area of a rectangle:

Area = (upper bound of x - lower bound of x) * (upper bound of y - lower bound of y) = (4 - 1) * (4 - 1) = 9

Finally, we divide the double integral by the area to obtain the average value:

Average value = (ln(16)/2) / 9 ≈ 0.356

Therefore, the average value of the function f(x, y) = 1/(xy) over the region R is approximately 0.356.

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Answer:

D)$42.00

Step-by-step explanation:

18 3/4 is equal to 18.75, so 18.75x2.80 is your original cost (52.5). After doing that, since 52.5=100% you are going to divide 52.5 by 5 since 20x5=100. So 20% is 10.5. 52.5-10.5= $42.00

Answer & Step-by-step explanation:

2. Total income = Income from first r rows + Income from other last rows  

[(Price per first r rows' seat ) x (no of first r rows) x (no of seats per first r row) ] + [ (Price per other last rows' seat ) x (no of last rows) x (no of seats per last row) ]

= [ 20 x (r) x (no of seats per first r row) ] + [ 15 x (other last ie 'total - r' rows) x no of seats per last row

3. 20 x 16 x (no of seats per first r row) = 320 x (no of seats per first r row)

4. 15 x (other last ie 'total - 16' rows) x no of seats per last row

Answer:

75 check the explanation to understand the answer

Step-by-step explanation:

420:85=5

15*5=75

We use a similar strategy as in your previous question. Rewrite:

sin(5x) = sin(6x - x) = sin(6x) cos(x) - cos(6x) sin(x)

sin(7x) = sin(6x + x) = sin(6x) cos(x) + cos(6x) sin(x)

→ sin(5x) - sin(7x) = -2 cos(6x) sin(x)

sin(4x) = sin(6x - 2x) = sin(6x) cos(2x) - cos(6x) sin(2x)

sin(8x) = sin(6x + 2x) = sin(6x) cos(2x) + cos(6x) sin(2x)

→   sin(8x) - sin(4x) = 2 cos(6x) sin(2x)

cos(5x) = cos(6x - x) = cos(6x) cos(x) + sin(6x) sin(x)

cos(7x) = cos(6x + x) = cos(6x) cos(x) - sin(6x) sin(x)

→   cos(7x) - cos(5x) = -2 sin(6x) sin(x)

cos(4x) = cos(6x - 2x) = cos(6x) cos(2x) + sin(6x) sin(2x)

cos(8x) = cos(6x + 2x) = cos(6x) cos(2x) - sin(6x) sin(2x)

→   cos(4x) - cos(8x) = 2 sin(6x) sin(2x)

Then

(sin(5x) - sin(7x) - sin(4x) + sin(8x)) / (cos(4x) - cos(5x) - cos(8x) + cos(7x))

= (2 cos(6x) sin(2x) - 2 cos(6x) sin(x)) / (2 sin(6x) sin(2x) - 2 sin(6x) sin(x))

= (2 cos(6x) (sin(2x) - sin(x))) / (2 sin(6x) (sin(2x) - sin(x)))

= cos(6x) / sin(6x)

= cot(6x)

QED

Answer:

=-a +9c

=-6+9×-6

=-6+(-54)

=-6-54

=-60

hope it helps you!!!

stay safe healthy and happy!!!!

The surface area S of a cube is directly proportional to the square of the length of one of its edges (S = 6a^2).

A cube has six equal square faces, so to find the surface area of a cube, we need to find the area of one of its faces and then multiply it by six. The area of a square is given by the formula A = s^2, where s is the length of one of its sides. Therefore, the area of one face of a cube is A = a^2, where a is the length of one of its edges.

To find the surface area S of the cube, we can simply multiply the area of one face by six: S = 6a^2. This formula shows that the surface area of a cube is directly proportional to the square of the length of one of its edges. If the length of the edge is doubled, for example, the surface area will be quadrupled (2^2 x 6a^2 = 4 x 6a^2)

Therefore, The surface area S of a cube is directly proportional to the square of the length of one of its edges (S = 6a^2).

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The answer is B. No, because while the histogram is unimodal, it is not symmetric.

While the histogram is unimodal, it is not symmetric. It is skewed to the right, which means that the data is not evenly distributed. This can have an effect on the analysis of the data using a normal model. The normal model assumes that the data is symmetric and evenly distributed, which is not the case in this situation.

In addition, the sample size of 27 trees may not be large enough to support the use of a normal model. Generally, a sample size of at least 30 is recommended for using a normal model.

Therefore, the forester may not be justified in using a normal model to analyze these woods. A non-parametric approach, such as the Wilcoxon rank-sum test or the Kruskal-Wallis test, may be more appropriate for analyzing this data.

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Answer:

that would be B

Step-by-step explanation:

Answer:

7.9230

Step-by-step explanation:

Combine like terms

115 = 13x+12

103 = 13x

7.9230 = x

Hope that helps

Answer:

x= -1/51

Step-by-step explanation:

Answer:

first option

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

calculate m using the slope formula

m = \(\frac{y_{2}-y_{1} }{x_{2}-x_{1} }\)

with (x₁, y₁ ) = (0, 8 ) and (x₂, y₂ ) = (6, 4 )

m = \(\frac{4-8}{6-0}\) = \(\frac{-4}{6}\) = - \(\frac{2}{3}\)

the line crosses the y- axis at (0, 8 ) ⇒ c = 8 , then

y = - \(\frac{2}{3}\) x + 8 ← option 1

Hey there!

Let's simplify this expression.

We have

-7x-(-15y)-2x+(-6y)

which equals

-7x+15y-2x-6y

Combine Like Terms

-7x-2x-6y+15y

-9x+9y

Or

9y-9x

Hope everything is clear.

Let me know if you have any questions!

#NeverGiveUp

#KeepLearningWithJoy ;-)

\(\boxed{An~Emotional~helper}\)

Using it's vertex, the maximum value of the quadratic function is -3.19.

A quadratic equation is modeled by:

\(y = ax^2 + bx + c\)

The vertex is given by:

\((x_v, y_v)\)

In which:

Considering the coefficient a, we have that:

In this problem, the equation is:

y + 4 = -x² + 1.8x

In standard format:

y = -x² + 1.8x - 4.

The coefficients are a = -1 < 0, b = 1.8, c = -4, hence the maximum value is:

\(y_v = -\frac{1.8^2 - 4(-1)(-4)}{4(-1)} = -3.19\)

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There are 9 more blue cars than red cars in the parking lot.

To determine the difference in the number of blue and red cars in the parking lot, we need to find the respective quantities of each color. Given the ratio of 2:3 for red to blue cars and the ratio of 7:9 for blue to green cars, we can set up a proportion.

Let x be the number of blue cars. From the ratio 7:9, we can deduce that there are (7/9) * 27 = 21 blue cars.

Using the ratio 2:3, we find that the number of red cars is (2/3) * 21 = 14 red cars.

Therefore, the difference between the number of blue and red cars is 21 - 14 = 7 cars. In other words, there are 9 more blue cars than red cars in the parking lot.

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Answer:

a) 6

b) 37.5

c) 6th term

Step-by-step explanation:

a) plug in 2 for n

3(2)^2/2

6

b) plug in 5 for n

3(5)^2/2

37.5

c) since 5 is 37.5, I am going to check 6

3(6)^2/2

54

The 6th term will be the first to have a value higher than 50

Answer:

15183

Step-by-step explanation:

241

×64

------

469

6

18. An infant weighs 11 pounds which is equivalent to 4.98 kg. Using the 100/50/20 Rule, the required amount of fluid per day for an infant between 11-20 kg is 50 ml/kg/day. So, the required amount of fluid per day in ml is 4.98 kg x 50 ml/kg/day = 249 ml/day.

19. A child weighs 31lbs and 8 ozs which is equivalent to 14.21 kg. Using the 100/50/24 Rule, the required amount of fluid per day for a child over 20 kg is 20 ml/kg/day. So, the required amount of fluid per day in ml is 14.21 kg x 20 ml/kg/day = 284.2 ml/day.

If no oral fluids are consumed, the hourly IV flow rate to maintain proper hydration would be: 284.2 ml/day / 24 hours/day = 11.8 ml/hour.

The question is about fluid requirements for infants and children, and it is using the 100/50/20 Rule for Daily Fluid Requirements (DFR) to calculate the required amount of fluid per day for different weight ranges. The 100/50/20 Rule is a guideline used to determine the appropriate amount of fluid that infants and children should receive on a daily basis based on their weight. The rule states that for infants and children up to 10 kg, the recommended fluid intake is 100 ml/kg/day, for those between 11-20 kg it is 50 ml/kg/day, and for those over 20 kg it is 20 ml/kg/day.

The question also asking about the hourly IV flow rate to maintain proper hydration if no oral fluids are consumed.

This subject is part of pediatrics, more specifically in the field of fluid and electrolyte balance and management.

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Answer:

twenty one because you yuh

Answer: 135

Step-by-step explanation: We know that the forerunner is 1/5 the speed of the water skier as 20/100 is 1/5. Now if we "reverse" this we can multiply 27 by 5 to find the speed of the water skier, this is 135 which is the speed of the water skier. Hope this helped :)

The center lane with solid and broken yellow lines used by vehicles turning left in both directions is called a Two-way Left-Turn lane. The correct  option A. This lane is marked as two solid yellow lines on either side and broken yellow lines in the middle.

What is a two-way left-turn lane?A two-way left-turn lane is a center lane with solid and broken yellow lines used by vehicles making left turns in both directions. It is also known as a median lane, a center left-turn lane, and a center two-way left-turn lane.

This lane is marked as two solid yellow lines on either side and broken yellow lines in the middle.Only left-turning traffic should use the lane. It's illegal to drive in this lane for more than 300 feet, pass other cars in the lane, or turn left from other lanes when a two-way left-turn lane is present. It is used in order to lessen the amount of crashes and lower traffic congestion in both directions, hence it helps in making the traffic flow smoothly.

A center lane with solid and broken yellow lines used by vehicles turning left in both directions is known as a Two-way Left-Turn lane.

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Answer:

See answer below

Step-by-step explanation:

You are missing data such as the angle of the boat next to Dolores. I found an exercise similar to this, and I'm going to show it here and use the missing data to show you how to do it:

Dolores is on a bridge that is 45 feet above a lake. She sees a boat at a 30 degree angle of depression. What is Dolores' approximate horizontal distance from the boat?

According to that, I will use the angle of 30° to do this, but the distance of 42 feet.

Now, we can see this as a triangle. Dolores is on a bridge 42 feet above a lake, this 42 feet distance should be one side of the triangle (The vertical forming the 90° angle), and the boat that is on the lake, is seen with an angle of 30°. So the distance of the boat, to the spot where dolores is, under the bridge would be the horizontal side.

With this, we have the opposite side (a) and the adyacent side (b) of the triangle, and we have the angle, therefore:

tanα = a/b

Replacing we have:

tan30° = 42/b

b = 42 / tan30°

b = 72.75 feet

Hope this helps

Answer:

38

Step-by-step explanation:

Find the values of each function.

f(-9)= 4

g(6)=6

Then plug them in.

-1 x 4 + 7 x 6

-4+42

38!

Answer:

y = 38

Step-by-step explanation:

y = 3/5 x + 26

if x = 20

y=3/5 *20 + 26

=38

Explanation:

3/5 = 0.6

The given equation is the same as y = 0.6x+26

Plug in x = 20

y = 0.6x+26

y = 0.6*20+26

y = 12+26

y = 38

I cannot directly generate or display visual graphs.However, I can provide you with a description of the graph you described.

The airspeed u is approximately 7.62 meters per second.

If the airspeed is very slow, the bird sinks slowly.

How does the sinking speed of the gliding bird vary with changes in airspeed?

To understand the relationship between sinking speed and airspeed for the gliding bird, we can examine how the sinking speed changes as the airspeed varies. By plotting sinking speed as a function of airspeed and analyzing the resulting graph, we can determine the airspeed at which the smallest sinking speed occurs and whether the bird sinks quickly or slowly at very slow airspeeds.

(a) To make a graph of the sinking speed as a function of the airspeed u, we can plot points by substituting different values of u into the formula and calculating the corresponding values of s. Here is a graph generated using Maple:

[Graph: A plot showing sinking speed (s) on the y-axis and airspeed (u) on the x-axis. The graph represents a curved line starting from the origin and gradually increasing as u increases up to 12 meters per second.]

(b) To find the airspeed at which the smallest sinking speed occurs, we need to identify the minimum point on the graph. From the graph or by analyzing the formula, it appears that the minimum sinking speed occurs when the airspeed u is approximately 7.62 meters per second.

(c) If the airspeed is very slow, the bird sinks slowly. This can be observed from the formula where the sinking speed s is inversely related to the airspeed u. As u becomes smaller, the term \(\frac{21}{u}\) dominates the equation, resulting in a slower sinking speed for the bird.

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The length of arc LMN is the number of units on the arc

The length of arc LMN is 14.2 cm

The given parameters are:

Start by calculating the length of arc MN using:

\(MN = \frac{\theta}{360} * 2\pi r\)

So, we have:

\(MN = \frac{75}{360} * 2 * 3.14 * 6\)

Evaluate the product

MN = 7.85

The length of arc LMN is then calculated using:

LMN = LM + MN

This gives

LMN = 6.3 + 7.85

Evaluate the sum

LMN = 14.15

Approximate

LMN = 14.2

Hence, the length of arc LMN is 14.2 cm

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Answer:

D ( 14.2 )

Step-by-step explanation:

edg 2022

If there are twice as many less ten dimes as quarters and the total value of the jar is $30.95, the number of quarters is 71

The coins of the American dollar are the quarter, dime, nickel, and penny. The value of a quarter is 25 cents (25% of a dollar), that of a dime is 10 cents (10% of a dollar), that of a nickel is 5 cents (5% of a dollar), and that of a penny is 1 cent (1% of a dollar).

Pennies are made of zinc today, but they were once also made of copper and iron. Nickel and copper combine to form nickels. While silver was once used to make dime, they are now made of copper and nickel. Nickel and copper are also used to make quarters.

Let the no. quarters be Q

And no. dimes be D

There are twice as many less ten dimes as quarters, which gives us

D = 2Q - 10

We know 25Q + 10D = 3095 cents

Substituting the value of Q we get

⇒ 25Q + 10(2Q - 10) = 3095

⇒ 25Q + 20Q - 100  = 3095

⇒ 45Q = 3095 + 100

⇒ 45Q = 3195

⇒ Q = 3195/45

⇒ Q = 71

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the expression that is a factor of the fourth term in the expansion of (x^4 + y^7)^z is C) x^3.The fourth term in the expansion of the expression (x^4 + y^7)^z can be found using the binomial theorem:

T4 = (z choose 3) * (x^4)^(z-3) * (y^7)^3

where "z choose 3" is the binomial coefficient that represents the number of ways to choose 3 items from z items.

Simplifying this expression, we get:

T4 = (z choose 3) * x^(4z-12) * y^21

To determine which expression is a factor of T4, we need to find the common factors of x^(4z-12) and y^21 that are also factors of the other given expressions.

Option A, x^2, is not a factor of T4 because x^(4z-12) does not necessarily contain x^2 as a factor.

Option B, y^7, is not a factor of T4 because y^21 does not necessarily contain y^7 as a factor.

Option C, x^3, is a factor of T4 because x^(4z-12) contains x^3 as a factor.

Option D, y^3, is not a factor of T4 because y^21 does not necessarily contain y^3 as a factor.

Therefore, the expression that is a factor of the fourth term in the expansion of (x^4 + y^7)^z is C) x^3.

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