What is the value of x in the equation 2 x + 4 =-8? 3​

Answer:

576 miles

Step-by-step explanation:

Answer:

else will drive 567 miles in 8h

Step-by-step explanation:

take 864÷ 12 to get how many hours she drives in one hour

you get 72

then you take 864÷2 to get how many miles she'll drive in 6h

you get 432

then you take 432 and add 144 or 72 + 72

and you get 567 miles in 8h

hope this helped!!

Answer:

3/10

Step-by-step explanation:

9/10 - 3/5

cross multiply and make denominators even

45-30/50

15/50

3/10

The volume available for carrying instruments and cameras in the TIROS satellite is approximately 26229.1 cubic inches.

The volume of a cylinder can be calculated using the formula V = πr^2h, where V represents the volume, r is the radius of the cylinder, and h is the height of the cylinder.

In this case, the diameter of the TIROS satellite is given as 42 inches, so we can calculate the radius by dividing the diameter by 2.

Radius (r) = diameter / 2 = 42 inches / 2 = 21 inches

The height of the satellite is given as 19 inches.

Using the formula V = πr^2h, we can substitute the values and calculate the volume.

V = π(21 inches)^2 * 19 inches

Calculating this expression gives us the volume of the cylinder-shaped body of the TIROS satellite.

Now, let's calculate the volume using a calculator:

V ≈ 3.14159 * (21 inches)^2 * 19 inches

V ≈ 3.14159 * 441 square inches * 19 inches

V ≈ 3.14159 * 8349 square inches

V ≈ 26229.059 square inches

Rounding this value to the nearest tenth, the volume available for carrying instruments and cameras in the TIROS satellite is approximately 26229.1 cubic inches.

To know more about volume refer here:

https://brainly.com/question/28058531

#SPJ11

Answer:

"The variance of the sample mean is equal to the population variance divided by n" is true.

a. For n sufficiently large, the distribution of the sample mean depends on the distribution of the population mean.

e. For any n, the sample mean is approximately normally distributed.

f. For n sufficiently large, the sample mean is exactly normally distributed.

g. For n sufficiently large, the sample mean is approximately normally distributed.

h. The variance of the sample mean is equal to the population variance divided by n.

For a given sample, if n is sufficiently large then the distribution of the sample mean relies on the mean and standard deviation of the population. Hence, the statement, "For n sufficiently large, the distribution of the sample mean depends on the distribution of the population mean," is true.

For any n, the distribution of the sample mean follows the normal distribution with mean µ and standard deviation σ/√n. Hence, the statement "For any n, the sample mean is approximately normally distributed," is true.

For large n, the sample mean approximately follows the normal distribution and for larger n, it exactly follows the normal distribution. Hence, the statement "For n sufficiently large, the sample mean is exactly normally distributed" and the statement "For n sufficiently large, the sample mean is approximately normally distributed" are true.

The variance of the sample mean is equal to the population variance divided by n.

Hence, the statement "The variance of the sample mean is equal to the population variance divided by n" is true.

Learn more about Mean and variance of normal distribution, visit here

https://brainly.com/question/32913351

#SPJ11

Answer:

1 : 2

Step-by-step explanation:

in ratios both numerator and denominator should be in same units/measurement

so 3/2 year = 3/2 * 12 months

= 3 * 6

= 18 months

ratio is 9 : 18

1 : 2

Answer:

Your answer is 26

I HOPE IT WILL HELP YOU.

Answer:

jeez human -4+1

Hope this helps

Answer:

C if its a parallelogram than opposite sides are parallel

A simple regression model is a statistical model used to estimate the relationship between two variables. In the model given as y = 10 + 2x, y is the dependent variable and x is the independent variable.

The equation states that the intercept of the regression line is 10 and the slope is 2. The slope of the regression line represents the change in y for every one-unit increase in x.

Overall, the simple regression model is a useful tool for understanding and analyzing the relationship between two variables.

To learn more about “predictions” refer to the https://brainly.com/question/25955478

#SPJ11

when the cake is cut into \(2\) ounce pieces instead of \(3\) pieces it yields \(180\) pieces.

How to find large cake pieces ?

Given in the question when cake cuts into piece that each weight is \(3\) ounce it yields \(120\)

So original large cake weight is

\(w=120*3\\\\w=360\)

So we can find cake pieces when cake cuts into weight \(2\) each piece

\(pieces=\frac{360}{2}\\=180\)

Learn more about algebra here :

https://brainly.com/question/28046486

#SPJ4

The probability that 5 messages are received in 1 hour is is 0.1755 ,the probability that 10 messages are received in 1.5 hours is 0.0858 and the probability that less than 2 messages are received in 1/2 hour is 0.2873

Let X shows the number of messages received per hour. The pdf of X is

\(P(X=x)=\) \(\frac{e^{-5}\cdot 5^{x}}{x!},x=0,1,2,3,....\)

Therefore, the probability that 5 messages are received in a single hour is

\(P(X=5)=\frac{e^{-5}\cdot 5^{5}}{5!}=0.1755\)

(b) Number of message received in 1 hour is 5 so number of message received in 1.5 hour is 7.5. So the probability that 10 messages are received in 1.5 hours is

\(P(X=10)=\frac{e^{-7.5}\cdot 7.5^{10}}{10!}=0.0858\)

(c) Number of message received in 1 hour is 5 so number of message received in 1/2 hour is 2.5. So the probability that less than 2 messages are received in 1/2 hour is

\(P(X < 2)=\frac{e^{-2.5}\cdot 2.5^{0}}{0!}+\frac{e^{-2.5}\cdot 2.5^{1}}{1!}=0.2873\)

Learn more about probability

brainly.com/question/30034780

#SPJ4

Answer:

-5

Step-by-step explanation:

15=-x+10

x-10=-15

x=-15+10

x=-5

In polar form, the given equation is expressed as r = 7, where r is the distance from the origin to a point on the graph and 7 is the constant radius. The graph of this equation in polar coordinates is a circle centered at the origin with a radius of 7.

The rectangular equation y = 7 represents a line parallel to the x-axis at a constant y-coordinate of 7.

To convert this equation to polar form, we can use the fact that in polar coordinates, the distance from the origin to a point on the graph is denoted by the radius (r), and the angle formed with the positive x-axis is denoted by theta (θ).

Since the equation y = 7 does not involve any variables or angles, the radius remains constant at 7 for all values of theta.

Thus, in polar form, we can represent this equation as r = 7, indicating that the distance from the origin to any point on the graph is always 7 units.

The graph of the equation y = 7 in polar coordinates is a circle centered at the origin, since all points on the graph are equidistant from the origin.

The radius of the circle is 7, which means that all points on the graph are 7 units away from the origin.

The circle does not depend on the angle theta and is symmetric with respect to the x-axis.

Therefore, the graph appears as a complete circle centered at the origin with a radius of 7.

Learn more about polar coordinates here:

https://brainly.com/question/31904915

#SPJ11

The minimum possible index of refraction of the liquid can be determined by applying the laws of refraction and total internal reflection.

According to the given information, the light beam is emitted 8 cm beneath the liquid's surface and strikes the air surface 7.3 cm from the point directly above the source. For total internal reflection to occur, the angle of incidence must be greater than the critical angle, which is the angle at which light rays are refracted at 90 degrees.

Using the laws of refraction, we can calculate the critical angle using the formula sin(critical angle) = n2/n1, where n2 is the refractive index of air (approximately 1.00) and n1 is the refractive index of the liquid. Rearranging the formula, we get n1 = n2/sin(critical angle).

To find the critical angle, we can use the information given: the vertical distance traveled by the light beam is 7.3 cm, and the horizontal distance is 8 cm. The critical angle can be calculated as the inverse tangent of the vertical distance divided by the horizontal distance, i.e., critical angle = atan(7.3/8).

By substituting the values into the formula, we can calculate the minimum possible index of refraction of the liquid as n1 = 1.00/sin(critical angle). The result, rounded to two significant figures, gives the minimum possible index of refraction of the liquid.

Learn more about critical angle here:

https://brainly.com/question/30002645

#SPJ11

Answer:

3(3 - 4x + 2y).

Step-by-step explanation:

Notice that 3 is a factor of 9, -12 and 6.  

There's no other "common factor."

Therefore, the GCF is 3 and in factored form the given polynomial is

3(3 - 4x + 2y).

Answer: \(3\left(3-4x+2y\right)\)

Step-by-step explanation:

\(3\cdot \:3+4\cdot \:3x+2\cdot \:3y\)

\(3\left(3-4x+2y\right)\)

Answer:

13 Mother's Day cards

Answer: 27 students

Step-by-step explanation:

First take 45 + 90 = 135 students total

20% = 0.2

Then take 135 times 0.2 = 27 students

Answer:

\(y - 3 = - 4(x + 2)\)

\(\textit{internal division of a line segment using ratios} \\\\\\ A(-3,2)\qquad B(5,-4)\qquad \qquad \stackrel{\textit{ratio from A to B}}{2:6} \\\\\\ \cfrac{A\underline{P}}{\underline{P} B} = \cfrac{2}{6}\implies \cfrac{A}{B} = \cfrac{2}{6}\implies 6A=2B\implies 6(-3,2)=2(5,-4)\)

\((\stackrel{x}{-18}~~,~~ \stackrel{y}{12})=(\stackrel{x}{10}~~,~~ \stackrel{y}{-8}) \implies P=\underset{\textit{sum of the ratios}}{\left( \cfrac{\stackrel{\textit{sum of x's}}{-18 +10}}{2+6}~~,~~\cfrac{\stackrel{\textit{sum of y's}}{12 -8}}{2+6} \right)} \\\\\\ P=\left( \cfrac{ -8 }{ 8 }~~,~~\cfrac{ 4}{ 8 } \right)\implies P=\left(-1~~,~~\cfrac{1}{2} \right)\)

The volume of the described solid, a frustum of a right circular cone, can be calculated using the formula V = (1/3)πh(R^2 + r^2 + Rr), where h is the height, r is the radius of the top base, and R is the radius of the lower base.

To find the volume of the frustum of a right circular cone, we use the formula V = (1/3)πh(R^2 + r^2 + Rr), where h is the height of the frustum, r is the radius of the top base, and R is the radius of the lower base.

In the given description, the top radius is also given as r, which means both the top and lower bases have the same radius. Therefore, the formula simplifies to V = (1/3)πh(2r^2 + Rr).

The volume of the frustum can now be calculated by substituting the given values of h and r into the formula. The resulting expression will give the volume of the described solid, taking into account the dimensions of the frustum.

Visit here to learn more about right circular cone:

brainly.com/question/21926193

#SPJ11

Answer:

A, B, D, E, F

Step-by-step explanation:

Answer:

318

Step-by-step explanation:

Bob=x

Marc=x+30

Donny=3(x+30)

x+x+30+3x+90=500

5x=500-120

5x=380

x=76

Bob has x = 76

Marc has x+30=106

Donny has 3*112=318

318+106+76=500

Answer:

infinite number of solutions

Step-by-step explanation:

Given the 2 equations

4x + 6y = 12 → (1)

6x + 9y = 18 → (2)

Equation (2) is a multiple of (1)

Each term has been multiplied by 1.5

Thus the 2 equations are basically the same equation.

This indicates there are infinite solutions to the system

Answer:

7 cm and 49 cm²

Step-by-step explanation:

(a)

A square has 4 equal sides , then

28 cm ÷ 4 = 7 cm

The length of each side of the square is 7 cm

(b)

The area (A) of a square is

A = s² ( s is the side length ) , then

A = 7² = 49 cm²

Answer:

Step-by-step explanation:

Perimeter of square will be equal to the length of the  string

Perimeter of square = 28 cm

4*side = 28

Divide both sides by 4

Side = 28/4

Side = 7 cm

b) Area of square = side * side

                             = 7 * 7

                             =49 cm²

Answer:

The answer is 5 2/15.

Step-by-step explanation:

Well, you just do 4/5 - 2/3 then add 5 as the whole number.

Yes, both tests can be reported to denote a significant difference. The T-test is used for normally distributed data, whereas the Mann-Whitney U test is used for non-normally distributed data.

Yes, both the Student's T-test and the Mann-Whitney U test can be used to denote a significant difference. The Student's T-test is used to compare the means of two normally distributed samples and determine if the difference in means is statistically significant. The Mann-Whitney U test is used to compare the means of two non-normally distributed samples and determine if the difference in means is statistically significant. Both tests are used to test the null hypothesis that the means of the two samples are the same. If the null hypothesis is rejected, it can be concluded that the difference between the means is statistically significant. Both tests provide a measure of the strength of the evidence against the null hypothesis, which can be used to determine if the difference between the means is significant.

Learn more about T-test  here

https://brainly.com/question/15007844

#SPJ4

Hey there! I'm happy to help!

In this case c is equal to 0. There is always a, b, and c, but they might be invisible (for example if a is 1 or b or c are 0).

Then you can choose whichever method you like to factor these (completing the square, quadratic formula, factoring, etc.)

The zeros should be 0 and a number that is about -1.9.

Have a wonderful day and keep on learning! :D

Answer:

y

Step-by-step explanation:

A variable is a letter that holds the place of a number. y in this expression matches that description, so it is the variable.

x = -6/7 is the value of x that the equation 5 - 6x = 8x + 17 fulfils.

We are given the equation 5 - 6x = 8x + 17.

To solve for x, we can first move all the x terms to one side of the equation and all the constant terms to the other side, as follows:

5 - 17 = 8x + 6x

Simplifying, we get:

-12 = 14x

Dividing both sides by 14, we get:

x = -6/7

So, the solution to the equation 5 - 6x = 8x + 17 is x = -6/7.

We can verify this solution by substituting it back into the original equation and checking that both sides are equal:

5 - 6(-6/7) = 8(-6/7) + 17

Simplifying, we get:

5 + 36/7 = -48/7 + 17

Multiplying both sides by 7, we get:

35 + 36 = -48 + 119

Which is true, so our solution is correct.

Therefore, the value of x that satisfies the equation 5 - 6x = 8x + 17 is x = -6/7.

To learn more about equation refer to:

brainly.com/question/29657983

#SPJ4