Pls help 8th grade math due at midnight

Answer:

B

Step-by-step explanation:

cut tghe shape into one rectangle and a two cimi circles

area of a rect. is b x h --> 7x14 = 98ft^2

now make the two cimi circles a whoal and find the area of a circle

pie r^2 --> 3.14x3.5^2 = 38.48

add both getting about 136.48

Answer:

136.48 ft^2 (B)

Step-by-step explanation:

First, we need to find the area of a rectangle.

A(rectangle) = l * w

  = 14 ft * 7 ft

  = 98 ft^2

Next we need to find the area of the two semicircles.

A(semicircle) * 2 = πr^2/2 * 2

                           = π(3.5 ft)^2

                           = 12.25π ft^2

                           = 38.48 ft^2

Finally, you add the two areas:

98 ft^2 + 38.48 ft^2 = 136.48 ft^2

Hope this helps!

The conditional "If there is no rain, then there is no rainbow" is equivalent to "Rain is a necessary condition for a rainbow."

The statement "Rain is a necessary condition for a rainbow" implies that if there is no rain, then there will be no rainbow. This is captured by the conditional "If there is no rain, then there is no rainbow." If the necessary condition of rain is not met, it follows that a rainbow cannot occur.

On the other hand, the remaining conditionals are not equivalent to the statement "Rain is a necessary condition for a rainbow."

The conditional "If there is no rainbow, then there is no rain" is the inverse of the original statement. It suggests that if there is no rainbow, it implies there is no rain. While it is true that rain is often associated with rainbows, the absence of a rainbow does not necessarily mean there is no rain. Therefore, the inverse is not equivalent.

The conditional "If there is a rainbow, then there is rain" is the converse of the original statement. It states that if there is a rainbow, it implies there is rain. While this is often the case, it does not capture the necessary condition aspect of the original statement. There can be other factors that contribute to the formation of a rainbow, such as water droplets in the atmosphere, without the presence of rain. Therefore, the converse is not equivalent.

The conditional "If there is rain, then there is a rainbow" is the contrapositive of the original statement. It suggests that if there is rain, it implies there is a rainbow. While rain is indeed a common condition for the formation of rainbows, it does not capture the necessary condition aspect of the original statement. There can be rain without the occurrence of a rainbow, such as in light drizzles or heavy downpours without sunlight. Therefore, the contrapositive is not equivalent.

In summary, the only conditional that is equivalent to "Rain is a necessary condition for a rainbow" is "If there is no rain, then there is no rainbow."

#Select which one(s) of the following conditionals are equivalent to Rain is a necessary condition for a rainbow. If there is no rainbow, then there is no rain If there is no rain, then there is no rainbow. If there is a rainbow, then there is rain If there is rain, then there is a rainbow.

Learn more about inverse here:
brainly.com/question/30339780

#SPJ11

Answer:

C = 10

Step-by-step explanation:

\(A^{2}\) + \(B^{2}\) = \(C^{2}\)

\(6^{2}\) + \(8^{2}\) = 100

\(\sqrt{100}\) = 10

Step-by-step explanation:

since f'(x) = 2f(x) and f(3) has no term of x (so, there must be a constant that eliminates x for x = 3), we get

f(x) = x²/9 × c

c = m×e^n

f(1) = 1/9 × m×e^n = 5

=> m×e^n = 45

f(3) = 9/9 × m×e^n = 45

m = 45

n = 0

In this problem, we are dealing with a random variable related to people's opinions on a new building project. We are given four options for the correct wording of the random variable and need to determine the correct one. Additionally, we are asked to calculate probabilities associated with the number of people who favor the new building project, ranging from exactly 4 to at most 6.

a) The correct wording for the random variable is "rv = the number of people who are in favor of a new building project." This wording accurately represents the random variable as the count of individuals who support the project.

b) To calculate the probability that exactly 4 people favor the new building project, we need to use the binomial probability formula. Assuming the probability of a person favoring the project is p, we can calculate P(X = 4) = (number of ways to choose 4 out of 10) * (p^4) * ((1-p)^(10-4)). The value of p is not given in the problem, so this calculation requires additional information.

c) To find the probability that less than 4 people favor the new building project, we can calculate P(X < 4) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3). Again, the value of p is needed to perform the calculations.

d) The probability that more than 4 people favor the new building project can be calculated as P(X > 4) = 1 - P(X ≤ 4) = 1 - (P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4)).

e) The probability that exactly 6 people favor the new building project can be calculated as P(X = 6) using the binomial probability formula.

f) To find the probability that at least 6 people favor the new building project, we can calculate P(X ≥ 6) = P(X = 6) + P(X = 7) + P(X = 8) + P(X = 9) + P(X = 10).

g) Finally, to determine the probability that at most 6 people favor the new building project, we can calculate P(X ≤ 6) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4) + P(X = 5) + P(X = 6).

To learn more about Binomial probability - brainly.com/question/12474772

#SPJ11

The arc length of the circle will be equal to 5.89 units.

The length of the curve on the circumference of the circle making an angle with the centre is called the length of the arc of the circle.

Given that:-

The length of the arc will be calculated as:-

Arc  =  Angle  x  radius

Arc  =  ( 3π / 4  )  x  2.5

Arc  =   5.89 units.

Therefore the arc length of the circle will be equal to 5.89 units.

To know more about arc length follow

https://brainly.com/question/2005046

#SPJ1

Answer:

The width is 2 and 1/4

Step-by-step explanation:

Answer:

The second one is wrong, so select the rest

48000 is your awnserrrr

Answer:

The volume is 2140.98 inches

Hope this helped!

Answer:

681.47 π cubic inches

Step-by-step explanation:

To prove the converse of the Vertical Angles Theorem, we need to show that if angles LDBC and LABE are congruent and points D, B, and E are on opposite sides of line AB, then they must be collinear.

Given: ∠LDBC ≅ ∠LABE

To Prove: D, B, and E are collinear

Proof:

1. Assume that points D, B, and E are not collinear.

2. Let BD intersect AE at point X.

3. Since D, B, and E are not collinear, then X is a point on line AB but not on line DE.

4. Consider triangle XDE and triangle XAB.

5. By the Alternate Interior Angles Theorem, ∠XAB ≅ ∠XDE (corresponding angles formed by transversal AB).

6. Since ∠LDBC ≅ ∠LABE (given), we have ∠LDBC ≅ ∠XAB and ∠LABE ≅ ∠XDE.

7. Therefore, ∠LDBC ≅ ∠XAB ≅ ∠XDE ≅ ∠LABE.

8. This implies that ∠XAB and ∠XDE are congruent vertical angles.

9. However, since X is not on line DE, this contradicts the Vertical Angles Theorem, which states that vertical angles are congruent.

10. Therefore, our assumption that D, B, and E are not collinear must be false.

11. Thus, D, B, and E must be collinear. Therefore, the converse of the Vertical Angles Theorem is proven, and we can conclude that if ∠LDBC ≅ ∠LABE and D, B, and E are on opposite sides of line AB, then D, B, and E are collinear.

Learn more about collinear here: brainly.com/question/11400710

#SPJ11

Answer:

(8, -15)

Step-by-step explanation:

Midpoint formula: \((\frac{x_1+x_2}{2} ,\frac{y_1+y_2}{2})\)

where \((x_1,y_1)\) is the first point (T) and \((x_2,y_2)\) is the second point (S)

Step 1. plug in what we have so far into the midpoint formula

\((\frac{0+x_2}{2} ,\frac{5+y_2}{2} )\)

but remember, the midpoint is (4, -5)

Step 2. solve for point (S)

The first coordinate of point (S) is the x-coordinate. And to solve for the x-coordinate, (since they're being divided by 2) multiply 2 by 4 (the x-coordinate of the midpoint)

\((\frac{0+8}{2},\frac{5+y_2}{2})\)

... (hard to explain for the y-coordinate of point (S))

Point S = \((8,-15)\)

Answer:

a<-4

Step-by-step explanation:

Add 5 to both sides of the inequality

-2a>8

Then divide -2 on both sides of the inequality

And since you are dividing a negative the inequality sign has to be fliped around

a<-4

Hope this helps!!!

Have a great day!!!

Answer:

x = 18

y = 29

Step-by-step explanation:

x + y = 47

4x - y = 43

Substitution:

y = -x + 47

4x - (-x + 47) = 43

4x + x - 47 = 43

5x - 47 = 43

5x = 90

x = 18

18 + y = 47

y = 29

Answer:

slope m = - 8

Step-by-step explanation:

the equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b ) a point on the line

y + 3 = - 8(x - 4) ← is in point- slope form

with slope m = - 8

The slope is :

Solution:

Given: \(\bf{y+3=-8(x-4)}\)

To determine the slope, it's important to know the form of the equation first.

There are 3 forms that you should be familiar with.

The three forms of equations of a straight line are:

This equation matches point slope perfectly.

The question becomes, how do you work with point slope to find slope?

In point slope, m is the slope and (x₁, y₁) is a point on the line.

Similarly, the slope of \(\bf{y+3=-8(x-4)}\) is -8.

Answer:

The distance between the two points is 3 units

Step-by-step explanation:

5-2=3

The distance between  (5, -6) and (2, -6) is 3 units.

Distance Formula to find distance between two points (a, b) and (c, d)  is D = √(c-a)² + ( d- b)²

The distance formula to find the distance of a point P(a, b) from the origin O(0,0) is D = √((a² + b²).

Given:

(5, -6) and (2, -6)

now, if there are two points (a, b) and (c, d) then the distance is

d= √(c-a)² + ( d- b)²

Then, d= √(2-5)² + (-6+ 6)²

d= √ 9+ 0

d= 3

Hence, the distance between two points is 3 units.

Learn more about distance formula here:

https://brainly.com/question/1872885

#SPJ2

When y = 7x² + 5x, x = -5 and dx/dt = 2, dy/dt = -130.

To find dy/dt when x = -5 and dx/dt = 2 for the given function y = 7x² + 5x, follow these steps:

1. Differentiate y with respect to x to find dy/dx. Use the power rule: d(ax^n)/dx = n*ax^(n-1) for each term.
  dy/dx = d(7x²)/dx + d(5x)/dx
  dy/dx = 14x + 5

2. Now, we need to find dy/dt. We know that dy/dt = (dy/dx) * (dx/dt). We are given that dx/dt = 2.

3. Plug in the value of x = -5 into the dy/dx equation:
  dy/dx = 14(-5) + 5
  dy/dx = -70 + 5
  dy/dx = -65

4. Finally, find dy/dt using the given dx/dt value:
  dy/dt = (dy/dx) * (dx/dt)
  dy/dt = (-65) * (2)
  dy/dt = -130

So, when x = -5 and dx/dt = 2, dy/dt = -130.

Learn more about Derivatives: https://brainly.com/question/24898810

#SPJ11

Answer:

equivalent expression of \(\sqrt[6]{g^5},\: if\:g>0\) is \(\mathbf{g^{\frac{5}{6}}\)

Option D is correct option.

Step-by-step explanation:

We need to find equivalent expression of \(\sqrt[6]{g^5},\: if\:g>0\)

The equivalent expression can be found using exponent rules.

We know that: \(\sqrt[6]{x} = x^{\frac{1}{6}}\)

Using this and solving our given expression

\(\sqrt[6]{g^5},\: if\:g>0\\=(g^5)^{\frac{1}{6}\)

Using exponent rule: \((a^m)^n=a^{m*n}\)

\(=g^{\frac{5}{6}\)

So, equivalent expression of \(\sqrt[6]{g^5},\: if\:g>0\) is \(\mathbf{g^{\frac{5}{6}}\)

Option D is correct option.

The statement is False. The residuals will not necessarily add up to 0.

The residuals from a linear regression analysis are the differences between the observed values of the dependent variable and the predicted values of the dependent variable. Therefore, the sum of the residuals will depend on the data and the model used. If the model is a perfect fit, then the sum of the residuals will be 0. However, in most cases, the model will not be a perfect fit and the sum of the residuals will not be 0. Therefore, it is not true that the residuals from a linear regression analysis on any possible dataset (with more than 1 observation) will add up to 0.

Learn more about dataset: https://brainly.com/question/518894

#SPJ4

The month for the same plan to be the same for Settle City and Text Turf is 3 months.

It should be noted that Settle city charges $15 plus 5 per month for unlimited text messages text turf. This will be represented as 15 + 5m

It should be noted that when they charge $30 plus $10 per month for the same plan, this will be represented as 30 - 10m

It should be noted that m = number of months.

It should be noted that the number of months that you can take from here to company and pay the same price will be:

15 + 5m = 30 + 10m

15 - 30 = 10m - 5m

-15 = 5m

m = -15 / 5

m = -3

The value can't be negative. The information isn't properly written. It should give a positive value of 3.

Learn more about equations on:

brainly.com/question/13763238

#SPJ1

Answer:

130

Step-by-step explanation:

2/2 = 1

26/2 = 13

10 x 13 = 130

hope this helps plz mark me brainliest =)))))))

Answer: 130

Step-by-step explanation:

Ten is the half of 20

So it must be the same thing on the other side. So it is 130

Pls mark me brainliest

Therefore, there are 81,920 different pizzas that this parlor offers.

Since there are five different sizes of pizza, a customer can choose any one of the five sizes. For each size, the customer can choose to have any combination of the 14 toppings, or no toppings at all. This means that for each size of pizza, there are $2^{14}$ different possible topping combinations, including the option of having no toppings. So the total number of different pizzas that the parlor offers is:

=5*2¹⁴

=5*16,384

=81,920

To know more about combination,

https://brainly.com/question/20211959

#SPJ11

Answer:

(4√2cos 135,  4√2sin135)

Step-by-step explanation:

determine two pairs of polar coordinates for the point (4, -4) with

Given the rectangular coordintate

r = √4²+(-4)²

r = √16+16

r = √32

r = √16*2

r =4√2

Theta = arctan(-4/4)

theta = arctan(-1)

theta = -45

theta = 180 - 45

theta = 135 degrees

x = rcos theta

y = rsin theta

x = 4√2cos 135

y = 4√2sin135

High mean with High standard Deviation is the data outcome of stock prices would best support the idea that there is more risk with that stock.

Stock Price:

The stock price is the price of one share out of the number of shares available for sale in the company. Simply put, stock price is the maximum amount someone is willing to buy a stock, or the minimum amount someone is willing to buy.

High mean with High standard Deviation:

A high standard deviation literally means a large mean deviation from the mean. For example, a good dart his player can throw darts on the dartboard and group the darts across the bullseye. A poor darts player will hit the entire board with the darts and even miss the board completely and hit the wall. A good darts player has a smaller average distance from the bullseye to the dart, and therefore a lower standard deviation. Bad darts players have a higher standard deviation because the average distance of their darts from the bullseye is greater.

There are no objective criteria for small and large standard deviations. We can only determine whether the mean deviation is small or large, depending on the context and what is being measured. For example, when throwing a dart, being one foot away from the target is a large deviation, but when swinging a wrecking ball against a wall, it is a small deviation. It has a different purpose than darts.

Learn more about Standard Deviation:

https://brainly.com/question/23907081

#SPJ4

a. The probability that 1 or more nonconforming units are found is 0.2311.

b. The probability that exactly 3 units are nonconforming is 0.000058.

a. To solve the problem, you can use the complement rule. The complement rule states that the probability of an event occurring is 1 minus the probability of the event not occurring. So, in this case, the probability that no nonconforming units are found in a sample of 25 units is:

P(no nonconforming) = (0.99)²⁵ = 0.787.

Therefore, the probability that 1 or more nonconforming units are found is:

P(1 or more nonconforming) = 1 - P(no nonconforming) = 1 - 0.787 = 0.213.

Rounded to four decimal places, this is 0.2311.

b. To solve the problem, you can use the binomial probability formula:

P(X=k) = (n choose k) * p^k * (1-p)^(n-k).

Here, n = 25 is the sample size, k = 3 is the number of nonconforming units, and p = 0.01 is the probability of a unit being nonconforming.

Using the formula, we get:

P(X=3) = (25 choose 3) * (0.01)³ * (0.99)²² = 2300 * 0.000001 * 0.5459 = 0.000058.

Rounded to six decimal places, this is 0.000058.

Learn more about probability here: https://brainly.com/question/30390037

#SPJ11