Please help what is B?

Answer:

it will be  C

Step-by-step explanation:

Answer:

x = \(\frac{z+5y+3}{7}\)

Step-by-step explanation:

z = 7x - 3 - 5y ( add 5y to both sides )

z + 5y = 7x - 3 ( add 3 to both sides )

z + 5y + 3 = 7x ( isolate x by dividing both sides by 7 )

\(\frac{z+5y+3}{7}\) = x

Answer:

275

Step-by-step explanation:

180-130=50

25*9=225

225+50 = 275

Answer:

4 -1

Step-by-step explanation:

just trust me on this one :)

Answer:

\(14 {x}^{4} + 2 {x}^{3} + 7 {x}^{2} + 4\)

Answer:

\(4a^{4} -5a^{2} b^{2}+b^{4}\)

Step-by-step explanation:

Answer:

71

93.5

x=15.5

Step-by-step explanation:

(2x+40)+(5x+16)+(x)=180

you have to put all the measures together and equal it to 180. when it comes to triangles, all the angles added together are equal to 180.

now solve the equation and you should get this:

x=15.5

the next step is to solve the give equations separately:

2(15.5)+40=71

5(15.5)+16=93.5

(15.5)=15.5

now to check the work, you have to add all the measures that were just calculated:

71+93.5+15.5=180 so check!

The probabilities of different events based on a sample of 100 observations drawn from a normal population with a mean of 1000 and a standard deviation of 200 a) p(x > 1,050) ≈ 0.3085, b) p(x < 960) ≈ 0.1151, c) p(x > 1,100) ≈ 0.1587.

In the given scenario, a sample of n = 100 observations is drawn from a normal population with a mean (µ) of 1000 and a standard deviation (δ) of 200. We need to find the probabilities for different events.

a. To find p(x > 1,050), we need to calculate the probability of observing a value greater than 1,050 in the sample. This can be done by finding the area under the normal distribution curve to the right of 1,050. Using statistical tables or software, we can find this probability to be approximately 0.3085 (rounded to 4 decimal places).

b. To find p(x < 960), we need to calculate the probability of observing a value less than 960 in the sample. This can be done by finding the area under the normal distribution curve to the left of 960. Using statistical tables or software, we can find this probability to be approximately 0.1151 (rounded to 4 decimal places).

c. To find p(x > 1,100), we need to calculate the probability of observing a value greater than 1,100 in the sample. This can be done by finding the area under the normal distribution curve to the right of 1,100.

Using statistical tables or software, we can find this probability to be approximately 0.1587 (rounded to 4 decimal places).

These probabilities can be calculated using the standard normal distribution or by converting the values to z-scores and using the z-table.

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The function is not a linear function because the slopes of the different points are not equal,

The points are given as: (-1, -5), (2, 4), (4, 8)

Calculate the slope using:

\(m = \frac{y_2 -y_1}{x_2 -x_1}\)

So, we have:

\(m = \frac{8 -4}{4 -2} = 2\)

\(m = \frac{8 + 5}{4 + 1} = 2.6\)

Notice that the slopes of the different points are not equal,

Hence, the function is not a linear function

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Answer:

Step-by-step explanation:

a+b=-14

a=-14-b

ab=33, using a from above makes this become

(-14-b)b=33

-14b-b^2=33

b^2+14b+33=0

(b+11)(b+3)=0

So the numbers are -3 and -11

When 293 college students are randomly selected and surveyed, it is found that 114 own a car. The upper limit for the 90% confidence interval for the percentage of all college students who own a car is 46.3%.

The given problem is an example of confidence intervals in statistics. The formula for finding the confidence interval in percentage is given below:

Confidence Interval in Percentage = P ± Z Score x √ (PQ/n)

where

P = Sample proportion

Q = 1 - P

n = Sample Size

Z Score is obtained from the Z-Table where the confidence level is given.

To obtain the upper limit, the following formula should be used:

Upper Limit of the Confidence Interval = P + Z Score x √ (PQ/n)

Substitute the given values of the question into the formula:

P = 114/293 = 0.3891

Q = 1 - 0.3891 = 0.6109

n = 293

The upper limit for the 90% confidence interval is given by the Z-Table at 1.645:

Upper Limit of the Confidence Interval = 0.3891 + 1.645 x √ [(0.3891 x 0.6109)/293]

≈ 0.3891 + 1.645 x 0.0467

≈ 0.3891 + 0.07701

≈ 0.4661 = 46.3%

Therefore, the answer is 46.3%.

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Answer:

See explanation below

Step-by-step explanation:

a. One solution (p = 1/4)

b. Infinite amount of solutions (No matter what value for p is, the equation will always be 7=7)

c. One solution (p = 12)

d. No solution (No matter what value for p is, the equation will always be 3 = -1, which wouldn't work)

Answer: 12

Step-by-step explanation:

\(\mathrm{The\:mode\:is\:the\:term\:in\:the\:data\:set\:that\:appears\:the\:most.}\)

\(\mathrm{If\:there\:is\:more\:than\:one\:term\:that\:appears\:the\:most,\:then\:there\:is\:no\:mode.}\)

\(\mathrm{Count\:the\:number\:of\:times\:each\:element\:appears\:in\:the\:list}\)

\(\begin{pmatrix}11&13&14&12\\ 1&2&2&3\end{pmatrix}\)

\(\mathrm{The\:most\:common\:element\:in\:the\:list\:is\:12}\)

Answer:

I'm sure It's 12

Step-by-step explanation:

To find the mode, order the numbers lowest to highest and see which number appears the most often.

11, 12, 12, 12, 13, 13, 14, 14

11=1

12=3 is the most common element

13=2

14=2

Answer:

376 - q = 28

Step-by-step explanation:

I hope this is what you meant :)

Given that Marcus uses a hose to fill a swimming pool with water. He knows that it takes about 1 minute to fill a 10-liter bucket. The pool has a capacity of 60,000 liters, and the pool is already three-quarters full.

In order to find the best estimate of the time it will take to fill this pool, we can use the given information which is; a bucket of 10 litres takes 1 minute to fill, the capacity of the pool is 60,000 litres and the pool is already 3/4 full.Therefore, to find the best estimate of the time it will take to fill the pool, Since the pool is 3/4 full, we can multiply the total capacity of the pool by 3/4 as shown below:60,000 litres × 3/4 = 45,000 litresThe pool is 45,000 litres full.Secondly, we need to find out how much more water is needed to fill the pool.

We can subtract the amount of water in the pool from the total capacity of the pool as shown below:60,000 - 45,000 = 15,000 litres more is neededLastly, we can now use the given information that a 10-litre bucket takes 1 minute to fill. To find out how long it will take to fill 15,000 litres of water, we can use the proportion:10 litres : 1 minute = 15,000 litres : x minutesWe can cross multiply to find the value of x:10x = 15,000x = 1,500 minutesTherefore, the best estimate of the time it will take to fill the pool is 1,500 minutes.

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The Munks saved $4444 by exercising the increase-in-payment option.

a) The first step is to compute the payment that would be made on a $175000 15-year loan at 6.25 percent compounded semi-annually over five years. Using the formula:

PMT = PV * r / (1 - (1 + r)^(-n))

Where PMT is the monthly payment, PV is the present value of the mortgage, r is the semi-annual interest rate, and n is the total number of periods in months.

PMT = 175000 * 0.03125 / (1 - (1 + 0.03125)^(-120))

= $1283.07

The Munks pay $1300 each month, which is rounded up to the nearest $100. At the end of five years, the mortgage balance will be $127105.28.
b) Over the remaining 10 years of the mortgage, the balance of $127105.28 will be amortized with payments of $1430 each month. The Munks pay an extra $130 per month, which is 10% of their new payment.

The additional $130 per month will be amortized by the end of the mortgage term.
c) Without the increase-in-payment option, the Munks would have paid $1283.07 per month for the entire 15-year term, for a total of $231151.20. With the increase-in-payment option, they paid $1300 per month for the first five years and $1430 per month for the remaining ten years, for a total of $235596.00.

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Answer:

Both are non-linear. The first equation is a rational function and the second is a quadratic.

Step-by-step explanation:

Answer: {4,5,6}

Step-by-step explanation: Sets could be explained as a representation of elements which could be numbers, alphabets or a collection of items which are wrapped inside a curly bracket {}. Generally in mathematical or statistical parlance, once elements are wrapped around curly braces, the collection of those emmts is called a set. And therefore, set arithmetic such as union, intersection, complement e.t.c can be performed on elements of the given set. Elements wrapped in curly braces signifies that the elements reperesents an entire entity.

In the question given above, {7,8,9} reperesents a set containing three elements : 7, 8,9.

The requried, 58.33% of a 14K gold ring is real gold.

To find the percentage of a 14K gold ring that is real gold, we can use the formula:

percentage = (part/whole) x 100

In this case, the "part" is the number of parts that are real gold, which is 14. The "whole" is the total number of parts, which is 24.

So the percentage of real gold in a 14K gold ring is:

percentage = (14/24) x 100 = 58.33%

Therefore, approximately 58.33% of a 14K gold ring is real gold.

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Answer:

link

Step-by-step explanation:

The measure of arc BC is 720 times the measure of angle BAC.

Given that AC is the diameter of the circle and AB is a chord with a length of 16 units, we need to find BC (the length of the other chord) and mBC (the measure of angle BAC).

To find BC, we can use the property of chords in a circle. If two chords intersect within a circle, the products of their segments are equal. In this case, since AB = BC = 16 units, the product of their segments will be:

AB * BC = AC * CE

16 * BC = 2 * r * CE (AC is the diameter, so its length is twice the radius)

Since the area of the circle is given as 289 square units, we can find the radius (r) using the formula for the area of a circle:

Area = π * r^2

289 = π * r^2

r^2 = 289 / π

r = √(289 / π)

Now, we can substitute the known values into the equation for the product of the segments:

16 * BC = 2 * √(289 / π) * CEBC = (√(289 / π) * CE) / 8

To find mBC, we can use the properties of angles in a circle. The angle subtended by an arc at the center of a circle is double the angle subtended by the same arc at any point on the circumference. Since AC is a diameter, angle BAC is a right angle. Therefore, mBC will be half the measure of the arc BC.

mBC = 0.5 * m(arc BC)

To find the measure of the arc BC, we need to find its length. The length of an arc is determined by the ratio of the arc angle to the total angle of the circle (360 degrees). Since mBC is half the arc angle, we can write:

arc BC = (mBC / 0.5) * 360

arc BC = 720 * mBC

Therefore, the length of the arc BC equals 720 times the length of the angle BAC.

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Answer:

im sorry wish i could

Step-by-step explanation:

Answer:

98

Step-by-step explanation:

option d..............

Answer:

E

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

Answer:

1. -3/1

2.negative

3.$18

Step-by-step explanation:

since the graph is going down, it is negative, and look at the ending points on the x and y-axis. 18/6 is 3. so the slop is -3 :)

Answer:

1. -3

2. negative

3. $18

Step-by-step explanation:

1. slope is rise/run so...

-3/1=-3

2. because run was a change of 3 DOWN the y axis we and run is a change of 1 to the right on x axis we have a negative slope. -3

3. she borrowed $18. Vertical intercept means the point where our line crosses the vertical axis. (Vertical axis is Y axis.)

Answer:

a) 1

b) There is no limit to which the largest number can be because we are only given information about the median.

c) 1

d) 90

the correct way to report the results of a hypothesis test and a measure of effect size using a t-statistic is option A: t(19)=2.30, r2=0.42, p<0.05.

The correct way to report the results of a hypothesis test and a measure of effect size using a t-statistic depends on the specific journal or style guide you are using. However, in general, the most common format is to report the t-value, degrees of freedom, and p-value first, followed by the measure of effect size.

So, looking at the options provided, we can eliminate option D because it only reports the t-value, degrees of freedom, p-value, and effect size all at once without separating them. Now, we are left with options A and B. Both options report the t-value, degrees of freedom, and p-value first, followed by the effect size. However, there is a difference in the order of the p-value and effect size. Option A reports the effect size as r2=0.42 after the p-value, while option B reports the effect size as r2=0.42 before the p-value.

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Answer:

it would be an arrow facing up