(First answer gets brainliest, quick answers please and no trolling. )


It can be scorching hot in the dessert whil also be freezing in the mountain tops nearby



True



False

Answer: 39.06

Step-by-step explanation:

Since 3x > 24, we can find the solution by dividing both sides of the inequality by 3, which gives x > 8.

On the number line, we can represent this solution as a shaded region to the right of 8, since any value of x greater than 8 would satisfy the inequality. The number 8 itself is not included in the solution because the inequality is strict (i.e., "greater than" rather than "greater than or equal to").

The number line would look like:

<----[=======o------------------------)---->

8 infinity

The open circle at 8 indicates that 8 is not included in the solution, while the shaded region to the right of 8 indicates all values of x that satisfy the inequality. The symbol "infinity" indicates that the solution continues indefinitely to the right.

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Answer:

a is the correct option.

Step-by-step explanation:

x = 3 is a vertical line.

Answer:

$96

Step-by-step explanation:

 \(f(x)= a(1-r)^x\)

a= initial amount

x= time in years

r= decay rate

\(f(x)= 1,200(1-0.4)^5\) ≈

\(f(x)= 96\)

Answer:

Yes

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

i hope this helps

The drug is estimated to lower a typical patient's systolic blood pressure by at least -56.367 and at most -45.433 (using a 90% confidence level).

To estimate the reduction in systolic blood pressure with a 90% confidence level, we can construct a confidence interval using the sample mean and standard deviation. Since the sample size is 30 and the data is assumed to be normally distributed, we can use the t-distribution.

The formula for a confidence interval for the mean is:

CI = Mean ± t * (s / √n),

where mean is the sample mean, s is the sample standard deviation, n is the sample size, and t is the critical value from the t-distribution corresponding to the desired confidence level.

In this case, the sample mean (x) is 50.9, the sample standard deviation (s) is 18.7, and the sample size (n) is 30. Since we want a 90% confidence level, we need to find the critical value (t) with a degree of freedom of 29 (n-1) and a tail probability of 0.05 (1 - 0.90).

Using statistical tables or software, we find that the critical value is approximately 1.699.

Plugging in the values, we can calculate the confidence interval:

CI = 50.9 ± 1.699 * (18.7 / √30).

Calculating the interval, we get:

CI = 50.9 ± 9.968.

Simplifying, we have:

CI = (-58.868, -42.932).

Therefore, the drug is estimated to lower a typical patient's systolic blood pressure by at least -56.367 (rounded to three decimal places) and at most -45.433 (rounded to three decimal places) with a 90% confidence level.

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The equations are y = 3x - 4 and 2y = 2x +1.

If the graph of equation intersect each other at one point then there is one solution, if line lies on one another then there are infinitely many solution and if lines are parallel to each other then there is no solution.

Plot the equation on the graph.

From the graph, it can be observed the lines intersect each other at one point only lies in first quadrant, so there is one solution located in the first quadrant.

Answer:

you have to isolate the variable

Step-by-step explanation:

7k-14=42

+14    +14

7k=56

7k/7+56/7

k=8

: )

a.  a11C11 + a12C12 + a13C13

b.  a11C11 - a21C21 + a31C31

c.  a21C21 - a22C22 + a23C23

d. -a12C12 + a22C22 - a32C32

e.  a31C31 - a32C32 + a33C33

f.  -a13C13 + a23C23 - a33C33

To evaluate the determinant in exercise 13 by a cofactor expansion along a, the first row. b, the first column. c, the second row. d, the second column. e, the third row. f, the third column, we can use the following steps:

First, we can use a cofactor expansion to evaluate the determinant along each of the six rows or columns in exercise 13. The cofactor expansion along the first row is shown below: a11C11 + a12C12 + a13C13.The cofactor expansion along the first column is shown below: a11C11 - a21C21 + a31C31.The cofactor expansion along the second row is shown below: a21C21 - a22C22 + a23C23.The cofactor expansion along the second column is shown below: -a12C12 + a22C22 - a32C32.The cofactor expansion along the third row is shown below: a31C31 - a32C32 + a33C33.The cofactor expansion along the third column is shown below: -a13C13 + a23C23 - a33C33.

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The estimated time required for the production of the eleventh 787 jet is approximately 14,580 hours.

To calculate this, we start with the given information that it takes Boeing 29,454 hours to produce the fifth 787 jet. The learning factor of 75% indicates that there is an expected reduction in production time as workers become more experienced and efficient. This means that each subsequent jet is expected to take less time to produce compared to the previous one.

To determine the time required for the eleventh 787, we apply the learning factor to the time taken for the fifth jet. We multiply 29,454 hours by the learning factor of 0.75 to obtain 22,090.5 hours. Since we are asked to round the response to the nearest whole number, the estimated time for the eleventh 787 is approximately 22,091 hours.

However, we are specifically asked for the time required for the eleventh unit, which implies that the learning factor is not applied to subsequent units beyond the fifth jet. Therefore, we can directly divide the estimated time for the fifth jet, which is 29,454 hours, by the number of units (11) to calculate the time required for the eleventh 787. This gives us an estimated production time of approximately 14,580 hours.

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The check for independence in a one- sample is

The population size is further than 10 times the sample size.

The Correct option is D.

What is Z- test?

A Z- test is a statistical thesis test used to determine whether a sample mean significantly differs from a given population mean when the population standard divagation is known.

For a one- sample z- test for a population proportion, the sample is named without relief from a finite population.

In order for the test to be valid, it's necessary to insure that the sample is small relative to the population size.

still, it can be considered large enough to satisfy the independence supposition, If the population size is further than 10 times the sample size. This supposition is necessary for the validity of statistical conclusion in this environment.

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Answer:

1, 536

Step-by-step explanation:

so if she saved 128 each month and you have 12 months you would have to multiply because each means to multiply so you take 128 and multiply it by 12 so , you would get 1 , 536

A car travel 20kph faster than a truck. the car cover 350 km in two hours less than the time. The speed of the car is 50 km/h. The speed of truck is 70 km/h.

You can determine an object's speed if you know how far it moves in a given amount of time. For instance, an automobile is moving at a pace of 70 miles per hour if it covers 70 miles in an hour (miles per hour).

Given,

A car travel 20kph faster than a truck. the car cover 350 km in two hours less than the time.

Let s represent the truck's speed and (s+20) represent the car's speed.

to determine each vehicle's time

Time = Speed / Distance

truck time = 350/s

Time in an automobile is 350/(s+20)

Truck time - car time = 2 hours

So,

(350/s) - [350/(s+20)] = 2

LCM is s(s+20)

[350(s+20) - 350s]/s(s+20) = 2

Cross multiplying,

350(s+20) - 350s = 2s(s+20)

Simplifying the equation,

350s + 7000 - 350s = 2s² + 40s

Now, we have quadratic equation to simplify,

2s² + 40s - 7000 = 0

Dividing the equation by 2

s² + 20s - 3500 = 0

Factorizing,

s= 50

s= -70 (impossible because of the sign)

Hence the truck's speed is s = 50 km/h.

The speed of the car is s + 20 = 70 km/h.

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It can be concluded that the plane will fly at two different headings while travelling from A to B and from B to A.

A plane flies a round trip, from city A to city B and back to A, at an airspeed of 100 km/h.

The cities are 200 km apart, and B is due east from A.

Neglecting the time it takes to take off, land, and turn around,

The round trip takes 4 hours to complete.

                           Time = Distance / Speed = 2 × 200 / 100 = 4 hours.

b) Next day the plane flies the same trip, but there's a constant wind blowing from East to West at 50 km/h.

Total distance = 200 km + 200 km = 400 km

           Airspeed = 100 km/h

Wind speed = 50 km/h (opposite to the direction of the plane)

          Apparent speed = airspeed - wind speed (for plane moving against the wind) = 100 - 50 = 50 km/h

Time to cover 200 km = Distance / Apparent speed = 200 / 50 = 4 hours

Total time taken for the round trip = 2 × 4 = 8 hours.

c) The following day, the plane flies the same trip, but now the wind blows from North to South.

The plane must follow a straight line from A to B and back to A.

Wind speed = 50 km/h

Direction of wind is perpendicular to the line joining the two cities.

Hence, it won't affect the time taken for the plane to travel from A to B and from B to A.

Time taken to travel from A to B = 200 / 100 = 2 hoursTime taken to travel from B to A = 200 / 100 = 2 hours

Total time taken for the round trip = 2 + 2 = 4 hoursd.

The heading of the plane in the round trip in this case will be different while going from A to B and while coming back from B to A.

For the first leg, the plane must fly eastward while for the second leg, it must fly westward but perpendicular to the direction of the wind.

Hence, it can be concluded that the plane will fly at two different headings while travelling from A to B and from B to A.

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Step-by-step explanation:

This is a cyclic quadrilateral, so angles E and P are supplementary.

Since angle P is 100 degrees, angle E is 180-100=80 degrees.

\(\text{Hello There!}\)

\(\text{I believe that number 4 is the correct answer}\)

\(\text{Cardiovascular (cardio) is very beneficial for you ranging from good exercise to heart benefits.}\)

\(\text{Cardio doesn't have to be on a machine, it could be running or biking.}\)

\(\text{Therefore, it is practically needed to be healthy.}\)

\(\huge\text{I hope this helped! :)}\)

\(\rule{250}{1.5}\)

Answer: $115,000

Step-by-step explanation:

The common stock is 9000 times 5 = $45000

To Paid-in Capital in Excess of Par = 160,000 - 45,000 = $115,000

In the given expression, the multiplication and division operations are performed first, followed by any addition and subtraction operations.

To evaluate the given expression, we need to break it down into individual operations and then apply the order of operations. Let's analyze each operation step by step:

Parentheses: In this expression, there are no parentheses, so we can skip this step.

Exponents: The exponentiation operation is denoted by the "^" symbol. However, in this expression, there are no exponents.

Multiplication and Division: The multiplication and division operations are performed from left to right. In the given expression, we have two multiplication operations: "\(3 * 2 ^ 2\)" and "100 / 10 * 2." According to the order of operations, we need to evaluate these multiplications before moving on to other operations.

First, let's consider "\(3 * 2^2\)" In this case, the exponentiation operation (^) takes precedence over multiplication. Therefore, we need to evaluate "\(2^2\)" first. Since 2 raised to the power of 2 is 4, the expression becomes "3 * 4."

Next, we have "100 / 10 * 2." As there are no other operations to perform before division, we can proceed with evaluating this expression. The division of 100 by 10 results in 10, and then multiplying by 2 gives us 20.

Addition and Subtraction: The addition and subtraction operations are also performed from left to right. In the given expression, we have "16 5" and "15 - 3" as the remaining operations.

Let's consider "16 5" first. The expression "16 5" is ambiguous because there is no operator between the numbers. It is essential to have a proper operator like ">" or "<" to determine the relationship between the two numbers. Without it, the expression is invalid.

Finally, we have "15 - 3." Subtracting 3 from 15 gives us 12.

Now that we have evaluated each operation, we can rewrite the expression as "3 * 4 < 12 and also 20 > 12."

To summarize, the operations are performed in the following order:

Exponents (if any)

Multiplication and Division (from left to right)

Addition and Subtraction (from left to right)

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Based on the computed 95% confidence interval, we can conclude that we are 95% confident that the true population mean falls within the range of 12.65 to 25.65.

A confidence interval is a range of values that provides an estimate of the true population parameter. In this case, we are interested in estimating the population mean (μ). The 95% confidence interval, as mentioned, is given as 12.65 ≤ μ ≤ 25.65.

Interpreting this confidence interval, we can say that if we were to repeat the sampling process many times and construct 95% confidence intervals from each sample, approximately 95% of those intervals would contain the true population mean.

The confidence level chosen, 95%, represents the probability that the interval captures the true population mean. It is a measure of the confidence or certainty we have in the estimation. However, it does not guarantee that a specific interval from a particular sample contains the true population mean.

Therefore, based on the computed 95% confidence interval, we can conclude that we are 95% confident that the true population mean falls within the range of 12.65 to 25.65.

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First, we want to note two things:

We can describe this with an inequality:  x ≥ -10
Be sure you use ≥ and not >, since -10 is included.

We can describe this with interval notation: [ -10, infty )
Be sure you use [ and not ( on -10, since -10 is included.

You can also use set-builder notation: { x | x ≥ -10 }

Answer:

9

Step-by-step explanation:

It is very simple, 3/4 * 2 = 1.5

If we take 1.5 and multiply it by the amount of batches being made (6), we will have our answer.

1.5*6 = 9, so there we have our answer.

Hope this helps!

The given statement in the form of inequality is given as -

c - 6 > 24.

An inequality is used to make unequal comparisons between two or more expressions. For example → ax + b > c

In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.

Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.

Given is the statement as -

"Six subtracted from c is greater than 24"

We can write the inequality as -

c - 6 > 24

Therefore, the given statement in the form of inequality is given as -

c - 6 > 24.

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{Question in english -

Six subtracted from c is greater than 24}

The person's average speed during her commute is 33.75 mph.

The speed of an object can be obtained by comparing the distance covered to the traveling time needed.

speed = distance / time

Take a look at the problem. As the information given is time in minutes and speed in miles per hour (mph), then we have to convert the time into an hour unit.

Total time = 20 minutes = 20/60 hour = 1/3 hour

Break time = 5 minutes

Commuting time = 20 - 5 = 15 minutes

                                         = 15/60 hour = 1/4 hour

Given the speed = 45 mph, then the distance covered during commuting time is:

Distance = speed x time

              = 45 x 1/4

              = 11.25 miles

Then we can calculate the average time, by comparing the distance covered to the total time:

Average speed = distance / total time

                          = 11.25 / 1/3

                          = 33.75 mph

Thus the average speed during the commute is 33.75 mph.

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The missing length in the triangle is 56 cm.

Two triangles are said to be similar if their corresponding angles are congruent and the corresponding sides are in proportion .

Let us form a proportional equation to find the value of missing length

p/21 = 24/9

Apply cross multiplication

9p=21×24

9p=504

Divide both sides by 9

p=56

Hence, the missing length in the triangle is 56 cm.

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18 root

2

Step-by-step explanation:

In this question imagine there is no y

It will be 10 root2 +5 root2 +3 root 2 it will be 18 root 2

Answer:

-3/4

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

-3/4 plus 1/2 is equal to -0.25 = -1/4

Good luck!!

Answer: The values of x are 9 and 1

Step-by-step explanation:

Answer:

she is running at a constant speed

Step-by-step explanation:

the bar is still because she isnt going faster or slowing down she is constant

Answer:

D: She is at a constant speed.

Step-by-step explanation:

she is not acceleraring or decelerating, so her speed is constant