2x+20 3x-15 solve for x=?

Answer: \(\dfrac{5}{7}\)

Step-by-step explanation:

Given

The theoretical probability of choosing an event  A is \(\dfrac{2}{7}\)

The sum of the probability of occuring and non-occuring of an event is always equal to 1.

So, the probability of non choosing Event A is

\(\Rightarrow 1-\dfrac{2}{7}\\\\\Rightarrow \dfrac{7-2}{7}\\\\\Rightarrow \dfrac{5}{7}\)

Option b is true to match the vector field f with the given plot f(x, y)=x, -y

The earliest known attempts at the concept of functions can be traced back to the work of the Persian mathematicians Al-Biruni and Sharaf al-Din al-Tusi. Originally, functions were idealized dependencies of one variable on another. For example, planetary positions are functions of time. Historically, this concept was developed in calculus towards the end of his 17th century, and the functions studied were differentiable (i.e. they had a high degree of regularity) until his 19th century ).

Given,

f(x, y) = x, -y

gt; at x⇒∞, y⇒-∞ downwards

at x⇒∞, y⇒+∞ downwards

Therefore, option b is true to match the vector field f with the given plot

f(x, y)=x, -y

To know more about function, visit:

https://brainly.com/question/24428416

#SPJ1

The complete question is as follows:

Match the vector field f with the correct plot. f(x, y) = x, −y

Answer:

5x⁴

Step-by-step explanation:

10x⁸÷2x⁴=

5x⁴

Answer:

17

Step-by-step explanation:

10y+7x-29=10y+5x+5

7x-29=5x+5

2x-29=5

2x=34

x=17

Brad purchased a company that is not profitable, the two courses of action he could take to boost profits in the company are to examine demand for the products and gauge customer satisfaction

By examining the demand for the products, Brad can identify any gaps in the market or unmet needs that the company's offerings could potentially fulfill. This information can be used to improve the product lineup or refine the company's marketing strategies to better appeal to customers. Additionally, gauging customer satisfaction allows Brad to understand the areas in which the company's products and services are excelling or need improvement.

By actively addressing customer concerns and enhancing the overall customer experience, Brad can foster greater loyalty, attract new customers, and ultimately, increase the profitability of the company. Although other options like investing in new equipment or increasing prices might have some positive effects, focusing on demand and customer satisfaction offers more direct paths to improving the company's financial performance. So therefore the two courses of action Brad could take to boost profits in the unprofitable company he purchased are to examine demand for the products and gauge customer satisfaction.

Learn more about demand at

https://brainly.com/question/1960580

#SPJ11

Answer:  Choice C.  \(3\sqrt{17}\)

================================================

Work Shown:

\(d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}\\\\d = \sqrt{(12-15)^2 + (-21-(-9))^2}\\\\d = \sqrt{(12-15)^2 + (-21+9)^2}\\\\d = \sqrt{(-3)^2 + (-12)^2}\\\\d = \sqrt{9 + 144}\\\\d = \sqrt{153}\\\\d = \sqrt{9*17}\\\\d = \sqrt{9}*\sqrt{17}\\\\d = 3\sqrt{17}\\\\d \approx 12.3693169\\\\\)

I used the distance formula for those steps above.

The two points were (x1,y1) = (12,-21)  and (x2,y2) = (15,-9) but you could swap the order.

As an alternative route, you can plot the two points on the same xy grid. Then form a right triangle such that the hypotenuse is between the two points mentioned. The pythagorean theorem should lead you to the same answer as above. In fact, the distance formula is basically a modified version of the pythagorean theorem.

Answer:

2x-3y

Step-by-step explanation:

-1/4(-8x+12y)

8/4x-12/4y

2x-3y

Answer:

160 & 320

Step-by-step explanation

In a simple linear regression model we use the normal quantile plot of the residuals to evaluate if it is reasonable to assume the error term come from a normal distribution.

In a simple linear regression model, the normal quantile plot of the residuals is a graphical tool used to assess the normality assumption of the error term (also known as the residual). The error term represents the difference between the actual value of the dependent variable and the predicted value by the model.

Assuming that the error term follows a normal distribution is important for various reasons. Firstly, the normal distribution is a very common assumption in statistics, and many statistical methods rely on it. Secondly, a normal distribution of the error term is essential for making reliable predictions and for computing valid confidence intervals.

The normal quantile plot of the residuals compares the distribution of the residuals against a theoretical normal distribution. The plot consists of a straight line if the residuals are normally distributed. However, if the plot shows deviations from the straight line, it indicates non-normality in the residuals.

If the normality assumption is not satisfied, we need to explore the reasons for the non-normality and consider alternative methods to analyze the data, such as non-parametric methods.

Therefore, the normal quantile plot of residuals is an essential diagnostic tool in simple linear regression, as it allows us to evaluate the assumption of normality and make appropriate adjustments to the model.

To learn more about regression click on,

https://brainly.com/question/30672101

#SPJ4

Answer:

OD is the answer

Step-by-step explanation:

y - 3(x - 1) = 0

y - 3x + 3 = 0

y = 3x - 3

therefore, slope = 3 and y intercept = -3

answer=

Children =5

Adults = 3

3/8 are adults

The dimension of the box is 8 inches by 4 inches by 4 inches

The complete question is added at the end of this solution as an attachment

From the question, we have the following parameters that can be used in our computation:

The volume of a box is calculated as

Volume = Length * Width * Height

Substitute the known values in the above equation, so, we have the following representation

128 = Length * 4 * 4

Divide both sides by 16

Length = 8

Hence. the length is 8 inches

Read more about volume at

https://brainly.com/question/1972490

#SPJ1

Answer:

0.5

Step-by-step explanation:

4a+5=7

4a=7-5

4a=2

a=2/4

Answer:

a = 1/2

Step-by-step explanation:

4a + 5 = 7

4a = 2

a = 1/2

The measure of the arc TQ is 180°.

Given that a circle with an angle subtended outside is 38° and a small arc of 104°, we need to determine the measure of arc TQ.

So, according to the property of a circle, we have,

m ∠R = 1/2 [m arc TQ - m arc SQ]

38° × 2 = m arc TQ - 104°

76° = m arc TQ - 104°

m arc TQ = 76° + 104°

m arc TQ = 180°

Hence the measure of the arc TQ is 180°.

Learn more about arcs click;

https://brainly.com/question/18741430

#SPJ1

Answer:h

Step-by-step explanation:

Answer:

- 3 ( 2x+1 ) 20

8x+5

_____________

8x+5×20 -3 ( 2×12.5+1 )

8×=100 -3 ( 25+1 )

100÷8= 12.5 -3 ( 26 )

×= 12.5

-3 ( 26 )

-3×2 + -3×6 = -6+ -18 = -24

-24

Answer:

-8 and -11

Step-by-step explanation:

all you do is divide both sides by -5 to get x<-4 (you swap the direction of the sign when you multiply or divide by a negative number) so the answers that are smaller than -4 are -8 and -11 NOT -4

it would be amazing if you marked this as brainliest :)

Answer:

267/100

Step-by-step explanation:

Hope this helps! :)

Answer:

55? What does that mean? Math 55?

Step-by-step explanation:

Answer: I’m sorry, but what is this? What’s the question?

Step-by-step explanation: Thank You! :)

Answer:

See explanation

Step-by-step explanation:

Answer:

Your answer is A. x = number of texts

Step-by-step explanation:

I took the quiz, it's correct

Good luck

Answer:

Your answer is A. x = number of texts

Step-by-step explanation:

Have a great day!

The inequality that represents the number d of dragonfly’s you must catch to earn a new high score, d> 1200.

Mathematical expressions with inequalities are those in which the two sides are not equal. Unlike to equations, we compare two values in inequality. Less than (or less than or equal to), greater than (or greater than or equal to), or not equal to signs are used in place of the equal sign.

Given:

To set a new record, you must score at least

= 36,480 – 34,280

= 2,200 points.

When you have earned 35,000-34,280 points, you need 720 more to qualify for the bonus.

Total = 36,000 points after obtaining 720 dragonflies.

Bonus points = 1000 points.

As, we need more than 480 additional dragonflies to surpass your previous best.

So, The total of all the dragonflies shows that more than 1200 are required.

Then, the inequality is d> 1200.

Learn more about Inequality here:

https://brainly.com/question/13964407

#SPJ9

The rate at which the distance between the man and the plane is increasing when the plane passes over the radio tower is approximately 519.92 ft/sec.

Let's denote the distance between the man and the plane as x and the time elapsed since the plane passes over the radio tower as t. We are given that the plane is flying horizontally away from the man, so the height of the plane remains constant at 5000 ft.

We can set up a proportion based on the similar triangles formed by the man, the plane, and the tower:

x / 12000 = 5000 / t

Cross-multiplying, we have:

xt = 12000 * 5000

xt = 60,000,000

Now, we can differentiate both sides of the equation with respect to time t:

d(xt)/dt = d(60,000,000)/dt

dx/dt * t + x * dt/dt = 0

dx/dt * t + x * 1 = 0

dx/dt = -x/t

We are given that the plane is flying at a rate of 520 ft/sec, so dx/dt = 520 ft/sec.

At the moment the plane passes over the radio tower, the distance x is 12000 ft. We can substitute these values into the equation to find the rate at which the distance between the man and the plane is increasing:

520 = -12000 / t

Solving for t:

t = -12000 / 520 = -23.08 sec (approximately)

Since time cannot be negative, we discard the negative value and take the positive value of t.

Now, we can substitute the value of t into the equation to find dx/dt:

dx/dt = -x / t = -12000 / (-23.08) = 519.92 ft/sec (approximately)

Therefore, the rate at which the distance between the man and the plane is increasing when the plane passes over the radio tower is approximately 519.92 ft/sec.

Learn more about distance from

https://brainly.com/question/30395212

#SPJ11

Answer:

The answer is 10 units because if you add up all the units that would be on the side you will get 10

Step-by-step explanation:

Answer:

4 would be your answer

Step-by-step explanation:

brainlesit pls

Step-by-step explanation:

It looks as though ( from your post)  Sweden won 4 golds and 0 silver and 2 bronze medals

4:0:2     simplifies to   2 :0 : 1

Answer:

The word "inverse" in the question is ambiguous, since x usually has inverses under both addition and multiplication. ... If the question is asking about the additive inverse (opposite), then the sum is always 0 for any x . So the sum takes its maximum value for any x .

Step-by-step explanation:

Answer:

Zero

Step-by-step explananation:

An inverse is the opposite of another number, so if you add them together it would equal zero.

Here are a few examples.

5+-5=0

9+-9=0

150+-150=0

-220+220=0

-476+476=0

The inverse is simply the originall number, but on the opposite side of the number line. Meaning you add or take away the negative sign, depending on the original number.

Hope I explained well:)

Eight triangles make up the octagon's overall area, which is 14 √(51) cm. The hexagon has a total size of 96sqrt(3) cm2, which is six triangles.

The following are crucial quadrilateral formulas: A polygon with "n" sides has a total internal angle sum of 180 degrees.(n-2) A "n-sided" polygon's number of diagonals is equal to [n(n-3)]./2. A regular n-sided polygon's internal angles are measured as [(n-2)180°]/n.

a. Six equilateral triangles can be formed from a normal hexagon. The formula for the area of an equilateral triangle can be used to calculate the area of each triangle, which has sides measuring 8 centimetres each.

Area of one triangle = (sqrt(3)/4) x (side length)^2

= (√(3)/4) x 8²

= 16√(3) cm²

Since there are six triangles, the total area of the hexagon is:

Area of hexagon = 6 x Area of one triangle

= 6 x 16√(3)

= 96√(3) cm²

b. Eight isosceles triangles with a base of 7 cm and two congruent edges of 5 cm each can be formed from the regular octagon. We can use the calculation for a triangle's area to determine the area of one of these triangles:

Area of one triangle = (1/2) x base x height

The height of each triangle can be found using the Pythagorean theorem:

\(height^2 = (side length)^2 - (base/2)^2 = 5^2 - (7/2)^2 = 25 - 49/4 = 51/4\)

height = √(51)/2

So the area of one triangle is:

Area of one triangle = (1/2) x 7 x √(51)/2

\(= (7√(51))/4 cm^2\)

Since there are eight triangles, the total area of the octagon is:

Area of octagon = 8 x Area of one triangle

\(= 8 x (7√(51))/4 = 14√(51) cm^2\)

To know more about triangles visit:-

https://brainly.com/question/2773823

#SPJ1