Which of the following describes the way substances diffuse in and out of a cell?

A.Substances move from lesser to greater concentration.

B.Substances move back and forth across the membrane equally.

C.Substances move across the membrane when energy is available.

D.Substances move from greater to lesser concentration.


Answer please it would help me alot and thx

Find percent -> 2nd month.

4264*.25==1066 phone calls+=4264

==5330 for 2nd month.

for 2nd -> 3rd

6396==5330*x, solve algebraically to get .20  == 20% increase from 2nd month to 3rd month.

Answer:

\(WX=\sqrt{970}\)

Step-by-step explanation:

The diagonals of a kite intersect at a 90-degree angle. In this figure, right triangle \(\triangle WRX\) is formed by half of each of the diagonals.

In any right triangle, the Pythagorean Theorem states that \(a^2+b^2=c^2\), where \(a\) and \(b\) are two legs of the triangle and \(c\) is the hypotenuse.

Segment WR is one leg of the triangle and is given as 21. XR forms the other leg of the triangle, and is exactly half of diagonal XZ. Therefore, \(XR=\frac{1}{2}\cdot 46=23\).

The segment we're being asking to find, WX, marks the hypotenuse of the triangle.

Therefore, substitute our known information into the Pythagorean Theorem:

\(21^2+23^2=WX^2,\\WX^2=970,\\WX=\boxed{\sqrt{970}}\)

Answer:

WX= 31.14

Step-by-step explanation:

Use the Pythagorean theorem- \(a^{2} +b^{2} =c^{2}\)

XR=23 by taking half of 46

\(21^{2} +23^{2} =c^{2} \\441+529=c^{2} \\970=c^{2}\)

sqrt both sides to get your answer of 31.14

SOLUTION:

Step 1:

In this question, we are given the following:

Brian has reduced his cholesterol level by 6% by following a strict diet and regular exercise.

This means that the remaining level will be ( 100 - 6 ) % = 94%

Step 2:

If his original level was 280,

Then, the approximate cholesterol level now will be:

CONCLUSION:

The final answer is:

Answer:

.11

Step-by-step explanation:

it is correct

Answer:

A) $.11

Step-by-step explanation:

A dozen = 12

To find unit cost you divide cost of items by # of items

In this case we have 12 eggs that cost 1.35

So unit cost = 1.35 / 12 = .11

The number of outcomes where team A wins 2 games, loses 3 games, and ties 2 games is 210.

In problem 1, there are three possible outcomes for each game: win, loose, or tie.

So, for seven games, there are 3x3x3x3x3x3x3 = 2187 different outcomes.

For problem 2, we need to calculate the number of ways that team A can win two games, lose three games, and tie two games.

To do this, we can use the binomial coefficient formula, which is (n choose k) = n!/(k!(n-k)!).

In this case, n=7 (the total number of games), k=2 (the number of games that team A wins), and m=2 (the number of games that team A ties).

So the number of outcomes where team A wins 2 games, loses 3 games, and ties 2 games is (7 choose 2)(5 choose 3)(2 choose 2) = 210.

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The solution is:  9.488 is the value of the chi-square test statistic.

Here,

given that

social activity education above average average below average college 22 20 10 high school 12 88 90 grade school 42 26 90

The critical value is found by first assessing which statistical test should be used.

We are interested in investigating relationship between social activity and education so chi-square test would be appropriate.

We have 3 rows and 3 columns.

The degree of freedom for chi-square critical value is (r-1)(c-1)=(3-1)(3-1)=2*2=4

Chi-square critical value(0.05,4)= 9.488

Hence, The solution is:  9.488 is the value of the chi-square test statistic.

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Answer: 20 miles

Step-by-step explanation:

Since the Uber charges $5.00 for the first mile you have to subtract that from the total which is 62.

62.00 - 5.00 = 57.00

Then you keep subtracting 3.00 from 57.00 or you can divide 57 by 3 because 57 is how much money is left and the Uber charges 3 dollars for each mile after the first.

57.00 divided by 3.00 is 19

Then add 1 to 19 which equals 20 miles. You add 1 to 19 because 19 is the amount of miles she goes but that doesn’t include the 1st mile.

Sorry if this is confusing

The visibility requirement is 3 statute miles, and cloud clearance requires maintaining 500 feet below, 1,000 feet above, and 2,000 feet horizontally from clouds during VFR daylight operations over Coopers Town.

The visibility and cloud clearance requirements to operate VFR during daylight hours over the town of Coopers Town between 1,200 feet AGL and 10,000 feet MSL are as follows:

1. Visibility: The minimum visibility required is 3 statute miles.

2. Cloud clearance: Maintain a distance of at least 500 feet below, 1,000 feet above, and 2,000 feet horizontally from clouds.

According to VFR regulations, pilots flying during daylight hours must adhere to certain visibility and cloud clearance requirements for safety. The visibility requirement of 3 statute miles means that the pilot must have a clear horizontal view of at least 3 miles ahead.

This ensures sufficient visual reference to navigate and avoid other aircraft or obstacles.

Regarding cloud clearance, pilots must maintain a safe distance from clouds to ensure visibility and separation from potential hazards. The requirement is to remain at least 500 feet below clouds to avoid inadvertently entering them.

Additionally, pilots must maintain a minimum of 1,000 feet above clouds to prevent the risk of collision or reduced visibility due to cloud turbulence. Lastly, a horizontal separation of 2,000 feet from clouds helps ensure adequate maneuvering space and visual reference in relation to cloud formations.

These visibility and cloud clearance requirements help maintain safety and situational awareness for VFR operations during daylight hours over Coopers Town.

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To pilot the boat from point A on the west bank to point B on the east bank, directly opposite A, while maintaining a constant speed of 5 m/s and a constant heading, the boat should head at an angle of approximately 7.9 degrees north of east.

The function f(x) = 3sin(x/40) represents the rate of water flow across the river as a function of the distance x from the west bank. We can use this function to determine the angle at which the boat should head to reach point B.

To find the angle, we need to consider the relationship between the boat's velocity vector and the direction of the water flow. The boat's velocity vector should be directed such that the component of the velocity perpendicular to the river flow cancels out the current's effect, allowing the boat to move straight across the river.

Since the maximum water speed is 3 m/s, we want the perpendicular component of the boat's velocity to be 3 m/s. Using basic trigonometry, we can determine the angle α between the boat's velocity vector and the east direction.

sin(α) = 3/5

α ≈ 7.9 degrees

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Answer:

D) 24

Step-by-step explanation:

Hope this helps. Pls give brainliest.

Answer: C

: Miriam multiplied correctly, but her third fraction should be .S

Step-by-step explanation: Miriam used the unit conversation upside down. The 7000 g should have been multiplied by 1oz/28.35g

The grams cancel and the division of 7000 be 28.35 results in 246.91 oz Round to 252oz.

Alternative: 7kg (2.21 lb/kg)(16oz/lb)=252.5oz

The kg and lbs cancel and the amount of ounces remains.

Answer:

it is c on egen

Step-by-step explanation:

Answer:

The unit cost is 25 cents for 1 oz of cereal, because 4/16 = 1/4, convert to cents.

Hope this helps and have a nice day:)

Step-by-step explanation:

Answer:

Your answer should be the 3rd one.

Step-by-step explanation:

Answer:

okay i will gladly

Answer:

d

\(425y.251 \\ jjlhjs \\ tjm{j{kg{mhjgjhghh\)

Answer:

Answer D

Step-by-step explanation:

Because it reflects both axes y and x. Which are the rise and the run. Meaning up and down.

Answer:

The answer is below

Step-by-step explanation:

A map can either be scaled up or scaled down. If the map is enlarged then it is scaled up and hence represented by n:1, where n > 1. While is the map is reduced, it is scaled down and is represented by 1 : n, where n < 1.

Since one box has a length of 1 cm by 1 cm. The distance between A and B is 4 boxes = 4 cm = 0.04 m

Hence the scale is given as 1:n, where n > 1. n is gotten from:

n = 960 m / 0.04 m = 24000

Therefore the scale is 1 : 24000

Answer:

1:48000

Step-by-step explanation:

960m=96000cm

Answer:

Claim 1

Step-by-step explanation:

Answer:

Draw a chain of bounces to the left, 12 units wide, starting at 0 and ending at –24.

Step-by-step explanation:

This is the correct answer.

I hope this helps you!

Answer:

the answer is b

Step-by-step explanation:

hope this helps:D

Recall the Central Limit Theorem.

The Central Limit Theorem says that no matter what the distribution of the population is, as long as the sample is “large,” meaning of size 30 or more, the sample mean is approximately normally distributed.

If the population is already normal, then any sample size will produce a normal sampling distribution.

Since Marcus looked at the clock shown above and said, 1/4 of an hour has passed. Sierra said 3/12 of an hour has passed. Ali said 15/60 of an hour has passed. They're equivalent and the teacher is right that they're all correct.

It should be noted that from the information, Marcus looked at the clock shown above and said, 1/4 of an hour has passed. Sierra said 3/12 of an hour has passed. Ali said 15/60 of an hour has passed.

In this case, their teacher said that they were all correct.

This means that:

1/4 = 3/12 = 15/60

It should be noted that they are all equivalent fractions. This implies that they are equal.

Therefore, the teacher is correct.

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Answer:

The Correct Answer Is 4

Step-by-step explanation:

So if you have $12 and you can buy $3 with each box of envelopes, you think, how many times can 3 go into 12

count in your head, 3 6 9 12 therefore, ITS 4

here is your equation to match this:

3 x ? = 12

You probably already know this, but i simple way to figure this out is to flip the equation to

12/3 = ?

so from here you can tell that 3 goes into 12 4 times

so the equation is

3 x 4 = 12

Hope It helps!

Answer:

\(3-3m+4m^2-\frac{1}{2} m^6\)

Step-by-step explanation:

The statements that is true about the similarity of the two triangles the option D

D. ΔMNO and ΔJKL are not similar triangles

Similar triangles are triangles which have proportional corresponding sides

The parameters in the question are;

The length of segment MN = 20

Length of segment NO = 12

Length of segment OM = 25

Measure of angle ∠O = 56°

Length of segment LJ =- 15

Length of segment JK = 12

Length of segment KL = 9

Measure of angle ∠L = 56°

Two triangles are similar if the ratio of two sides on one triangle are proportional to two sides of another triangle, and the included  angle between the two sides are congruent

The included angle between sides ON and MO on triangle MNO is congruent to the included angle between segment LK and JL in triangle JKL

However, the ratio of the sides  LK to ON and JL to MO are;

9/12 ≠ 15/25

Therefore, the triangles are not similar

The correct option is option D

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95.1% of the proportion of observed variation in hardness can be explained by the simple linear regression model relationship between hardness and elapsed time.

Linear regression model:

In statistics, linear regression model defined the relationship between a dependent variable, y, and one or more independent variables, X.

Given,

Here we need to find the percentage of observed variation in hardness can be explained by the linear relationship between hardness and elapsed time.

In order to find the percentage we must know the definition of observed variation which means  the combined variation that is derived from all sources.

In order to solve this let us consider that the linear regression model is used by statisticians to predict the value of the response variable for given values of the predictor variables.

So, if there are two variables involved in the regression analysis, then the model is called a bivariate one.

Where as If there are more than two independent variables, then the regression model is known as the multiple regression model.

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The x-intercept is (735, 0) and y-intercept is (0, 490)

The equation 2x + 3y = 1,470 represents Sal's profits last month, where x is the number of sandwich lunch specials sold and y is the number of wrap lunch specials sold. To graph this equation, we can rearrange it into slope-intercept form, y = mx + b, where m is the slope and b is the y-intercept.

2x + 3y = 1,470

3y = -2x + 1,470

y = (-2/3)x + 490

We can use the intercepts method to graph the line. For x-intercept, y = 0 and solve for x:

2x + 3(0) = 1,470

2x = 1,470

x = 735

Therefore, the x-intercept is (735, 0).

For y-intercept, x = 0 and solve for y:

2(0) + 3y = 1,470

3y = 1,470

y = 490

Therefore, the y-intercept is (0, 490). We can plot both intercepts and draw a straight line through them to represent Sal's profits last month.

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Big O notation focuses on the worst-case scenario analysis, which is 0(n) for a simple search. It’s a reassurance that a simple search will never be slower than O(n) time.

Imagine that you're a teacher with a student named Ram. You want to find his records, so you use a simple search algorithm to go through your school district's database.

You know that a simple search takes O(n) times to run. This means in the worst case, you'll have to search through every single record to find Ram

After a simple search, you find that Ram records are the very first entry in the database. You don't have to look at every entry.

Did this algorithm take O(n) time Or did it take O(1) time because you found Ram records on the first try?

In this case, 0(1) is the best-case scenario – you were lucky that Ram records were at the top. But Big O notation focuses on the worst-case scenario, which is 0(n) for a simple search. It’s a reassurance that a simple search will never be slower than O(n) time.

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The degrees of freedom for the numerator and denominator for the critical value of F are _3 and 56, respectively_.

The samples, each comprised of 15 observations, were taken from the four populations.

The determine the degrees of freedom for the numerator and denominator for the critical value of F is given below:

k = 4

n = 15

Total degree of freedom;

= nk - 1

= 59

For numerator, it is

= k -1

= 4 - 1

= 3

For denominator it is

= T - (k -1 )

= 59 - 3

= 56

The degrees of freedom for the numerator and denominator for the critical value of F are _3 and 56, respectively_.

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The true statement about the function of area of by rectangle and width of rectangle are:

The correct answer option is options A and D

A rectangle is a quadrilateral having opposing sides parallel and four right angles.

At point (x, y) = (10, 100) the area is maximum.

This means that the area of the rectangle is maximum when width is 10m.

If the width of the rectangle is more than 10m, the area reduces or decreases.

Therefore, the statement Greater width relates to greater area as long as the width is more than 10 m is false.

The statement "To get the greatest area, the width should be 20" is false.

Complete question:

Simon has a certain length of fencing to enclose a rectangular area. The function A, models give the rectangles area (in square meters) as a function of its width (in meters).

Wlhich of these statements are true?

A. Greater width relates to greater area as long as the width is less than 10.

B. Greater width relates to greater area as long as the width is more than 10.

C. To get the greatest area, the width should be 10

D. To get the greatest area, the width should be 20

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Answer:

Your answer is

x-int: (3 , 0) ,  (-3/2 , 0)

y-int: (0 , -9)

Step-by-step explanation:

Answer:

<1 ≅ <3 (congruence property)

Step-by-step explanation:

Given that: <1 and <3 are vertical angles.

Prove: <1 congruent to <3

Vertical angles are angles that are vertically opposite, and are formed under the same conditions. Thus, they are always congruent.

<1 + <2 = \(180^{o}\) (sum of angles on a straight line)

Also,

<2 + <3 = \(180^{o}\) (sum of angles on a straight line)

So that,

<1 + <2 ≅ <2 + <3 = \(180^{o}\)

Thus, we can say that;

<1 + <2 ≅ <2 + <3

Since <2 is a common angle on both sides, then;

<1 ≅ <3 (congruence property)