alr help me on this one.

Answer:

x = 57

Step-by-step explanation:

180 degrees in a triangle

67 + 56 = 57

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

Explanation:

The three angles of any triangle always add to 180

x+67+56 = 180

x+123 = 180

x+123-123 = 180-123 .... subtract 123 from both sides

x = 57

The missing angle is 57 degrees

-------------

Check:

x+67+56 = 57+67+56 = 180

Answer is confirmed.

Answer:

Step-by-step explanation:

distrbut the negative

-12x+20=5-3x

then add 3x =-9

then u subtract 20

then it is -15

-9x=-15

then u dived by -9

the u get positive

x=15/9

\(\\ \sf\longmapsto 2x+1+4x+19=8x-10\)

\(\\ \sf\longmapsto 6x+20=8x-10\)

\(\\ \sf\longmapsto 8x-6x=20+10\)

\(\\ \sf\longmapsto 2x=30\)

\(\\ \sf\longmapsto x=15\)

Now

Hello inquins!

\( \huge \boxed{\mathbb{QUESTION} \downarrow}\)

What are m ∠DBC, m ∠ABD, and m ∠ABC.

\( \large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}\)

We can see from the figure that,

∠ABC = ∠ABD + ∠DBC ------- eq. (1)

The values of the angles are given as :-

Now, let's substitute these values in eq. (1) & solve it.

∠ABC = ∠ABD + ∠DBC

\( \tt \: 8x - 10 =( 2x + 1) +( 4x + 19) \\ \tt 8x - 10 = 2x + 1 + 4x + 19 \\ \tt 8x - 10 = 2x + 4x + 1 + 19 \\ \tt 8x - 10 = 6x + 20 \\ \tt 8x - 6x = 20 + 10 \\ \tt \: 2x = 30 \\ \tt \: x = \frac{30}{2} \\ \underline{\underline{ \bf \: x = 15}}\)

__________________

Now, let's find the measure of the angles.

__________________

Hope it'll help you!

ℓu¢αzz ッ

The probability of NOT drawing a face card from a standard deck of 52 cards is 10 over 13.

First determine the total number of face cards and non-face cards in a standard deck of 52 cards.                                   In a standard deck, there are 12 face cards (3 face cards per suit: Jack, Queen, and King, and 4 suits: Hearts, Diamonds, Clubs, and Spades). This means there are 52 - 12 = 40 non-face cards.

Now, we'll calculate the probability of NOT drawing a face card:
Probability = (Number of favorable outcomes) / (Total number of outcomes)
Probability of NOT drawing a face card = (Number of non-face cards) / (Total number of cards)
Probability = 40 / 52

Simplify the fraction by dividing the numerator and denominator by their greatest common divisor (4):
Probability = (40/4) / (52/4)
Probability = 10 / 13

So, the probability of NOT drawing a face card from a standard deck of 52 cards is 10/13. Your answer: 10 over 13.

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Answer:

4x-3

Step-by-step explanation:

9x+6-4x-1x+1-10

9x-4x-1x+7-10

5x-1x+7-10

4x-3

Solution

The exponential function

The final answer

Option B

Answer:

x < 3

Step-by-step explanation:

Your inequality: 4x - 1 < 11

4x - 1 < 11

Add 1 to both sides

4x < 11 + 1

4x < 12

**Don't switch signs because no negatives nor any specifications**

Divide 12 by 4

x < 3

The correct term for a sample obtained in such a way that every element in the population has an equal chance of being selected is a "random sample."

In a random sample, each member of the population has an equal probability of being chosen, providing a representative subset of the population. This sampling method helps to reduce bias and ensures that the sample is more likely to accurately reflect the characteristics of the entire population.

Random sampling is a fundamental principle in statistics and research, allowing for generalizations and inferences to be made about the population based on the characteristics observed in the sample. It is widely used in various fields, such as social sciences, market research, and opinion polls, to draw meaningful conclusions about a larger population.

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There are number of 170 seats with folding arm tablets that are not designed for wheelchair users.

1. First we need to identify the total number of seats in the lecture hall which is 200.

2. Then we need to identify the number of seats with folding arm tablets that are designed for wheelchair users which is 30.

3. To find the number of seats with folding arm tablets that are not designed for wheelchair users, we can subtract the number of seats designed for wheelchair users from the total number of seats.

4. Therefore, 200 - 30 = 170, which means there are 170 seats with folding arm tablets that are not designed for wheelchair users.

The lecture hall in question has a total of 200 seats, with 30 of those seats having folding arm tablets that are designed for wheelchair users. To find the number of seats with folding arm tablets that are not designed for wheelchair users, we can subtract the number of seats designed for wheelchair users from the total number of seats. This means that 200 - 30 = 170, which means there are number of 170 seats with folding arm tablets that are not designed for wheelchair users.

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Answer:

Number 1: -8.7. Number 2: -2

Step-by-step explanation:

To find the first one, subtract 11 from 2.3.

2.3-11= -8.7 , so that's the answer for the first one.

To find the answer to the second one, just do -4+-2=-2, so that's the answer for the second one.

The candle has burned down  \(3 \frac{3}{4}\)  inches after 6.5 hours.

To calculate this, we first need to determine the rate at which the candle burns by dividing the total burn time (11 hours) by the total length of the candle ( \(5 \frac{1}{2}\)  inches). This gives us a burn rate of 2 hours per inch.

Next, we can multiply the burn rate by the time the candle has been burning (6.5 hours) to determine how far the candle has burned. This gives us a result of 13 inches, which is equal to \(3 \frac{3}{4}\) inches in standard units. Therefore, the candle has burned down  \(3 \frac{3}{4}\)  inches after 6.5 hours.

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Answer:

The second graph

Step-by-step explanation:

Let's start with the top equation, 4y+3x=0

Isolate the y by moving the 3x to the other side. 4y=-3x

Divide both sides by 4 to fully isolate the y which will give you y=-3/4x

There's your first equation.

Then take 4y-x=16 and do the same thing

4y=16+x

y=4+x/4

y=x/4+4

Now you know that one equation is going to go left, or the negative direction, while the other will go right, or positive, meaning there will be a point where they intersect. So just basically look for the one where x/4+4 is rising while going right. Leaving you with either the 1st or 2nd graph.

Then,

Graph both using the rise/run method or just look for an answer choice where one of the equations is positive and intersects at y=4 (since the second equation is x/4+4) which makes it the second graph.

Let me know if you need any extra explanation

Answer:

(-4,3)

Step-by-step explanation:

To solve a system of equations by graphing, we'll need to graph both equations, and find their points of intersection.

Note that both equations are linear (no exponents, no radicals, no variables in a denominator, no variables multiplied to other variables, etc -- just numbers multiplied to a variable and added to other numbers multiplied to a variable).

To graph linear equations, often they are graphed by putting the equation in slope-intercept form.  Alternatively, since it is a line, two points can be found on the line, and then the line can be graphed.

Slope intercept form is \(y=mx+b\), where "m" is the slope of the line, and "b" is the y-intercept (the place where the line crosses the y-axis).

To convert to slope intercept form, isolate "y".

First equation:

\(4y+3x=0\)

\((4y+3x)-3x=(0)-3x\)

\(4y=-3x\)

\(\dfrac{4y}{4}=\dfrac{-3x}{4}\)

\(y=\frac{-3}{4}x\)

Second equation:

\(4y-x=16\)

\((4y-x)+x=(16)+x\)

\(4y=x+16\)

\(\frac{1}{4}*(4y)=\frac{1}{4}*(x+16)\)

\(y=\frac{1}{4}*x+\frac{1}{4}*16\)

\(y=\frac{1}{4}x+4\)

To graph the lines, plot their y-intercepts first, then use their slopes to determine the rest of the line.

Recall that the slope is \(\frac{rise}{run}\).

Once the equations are graphed, find the intersection from the diagram, (-4,3).

The equations currently are in an implicit form (a form where the variables aren't isolated, so neither variable is written in terms of the other).  To graph any line, find and plot two points, then draw the line between them.

To find points on the line, recall that the equation for a line relates the x-coordinate and y-coordinate through the equation.  So, if you want to find the y-coordinate for the line when the x-coordinate is 0, substitute 0 for x, and solve for y.  Often zero is used, because multiplying by zero cancel out the term, and makes the calculations easier.

Equation 1 - finding a point where x=0

\(4y+3x=0\)

\(4y+3(0)=0\)

\(4y+0=0\)

\(4y=0\)

\(\dfrac{4y}{4}=\dfrac{0}{4}\)

\(y=0\)

So, if x=0, then y=0.  So, the point (0,0) is on line 1.

To find another point, we need to choose another number.  As mentioned previously, often zero is used, and we could find a point on the line where the y-coordinate is zero.  However, since we just found that the point (0,0) is on the line, x=0 when y=0, and so y=0 when x=0.  We'll need a new number.

Another number that it often an easy choice mathematically is to choose the coefficient of the other variable.  So, for instance, in equation 1, the coefficient of the y term is "4", so let's choose the x-coordinate to be 4, and find the y-coordinate that goes with it:

Equation 1 - finding a second point, where x=4

\(4y+3x=0\)

\(4y+3(4)=0\)

\(4y+12=0\)

\((4y+12)-12=(0)-12\)

\(4y=-12\)

\(\dfrac{4y}{4}=\dfrac{-12}{4}\)

\(y=-3\)

So, if x=4, then y=-3.  So, the point (4,-3) is also on line 1.

Those two points can be plotted, and the line drawn.

Equation 2 - finding a point where x=0

\(4y-x=16\)

\(4y-(0)=16\)

\(4y=16\)

\(\dfrac{4y}{4}=\dfrac{16}{4}\)

\(y=4\)

So, if x=0, then y=4.  So, the point (0,4) is on line 2.

To find another point, this time, we can choose the y-coordinate to be zero, because we don't already know the x-coordinate that is associated with it.

Equation 2 - finding a second point, where y=0

\(4y-x=16\)

\(4(0)-x=16\)

\(0-x=16\)

\(-x=16\)

\(-1*(-x)=-1*(16)\)

\(x=-16\)

So, if y = 0, then x = -16.  So, the point (-16,0) is also on line 2.

Those two points can be plotted and the line drawn.  Once the lines are drawn, the intersection can be found.  From the diagram, the intersection is (-4,3).

Complete Question :

Isaac surveyed the employees at a law firm. Each employee was asked to record their highest level of education completed. The

results are shown in the table below.

Highest Level of Education Completed

Education Level

Percentage

High School

5%

Community College

10%

Four-Year College

60%

Graduate School

25%

Two-hundred sixty people completed the survey. How many of those people completed graduate school?

Answer:

65 people

Step-by-step explanation:

Given the following :

Number of survey participants = 260

Percentage that completed graduate school = 25%

Number of participants who completed graduate school ;

Total Number of participants × percentage that completed graduate school

260 participants × 25%

260 × 0.25

= 65

Answer:

65 people

Step-by-step explanation:

I took the test and that was the correct answer

Answer:

14 out of the total class of 35 are boys

Step-by-step explanation:

35 / 5 = 7

7 * 2 = 14

The mean is the most appropriate measure of central tendency as it takes into account all values in the dataset and provides a useful representation of the average value. However, the median and mode can also be useful to consider, particularly if the dataset has extreme values or is not normally distributed.

The appropriate measure of central tendency depends on the level of measurement of the variable.

For nominal level variables, the mode is the most appropriate measure of central tendency. The mode represents the most frequently occurring value in the data and is a useful summary statistic for categorical data.

For ordinal level variables, the median is the most appropriate measure of central tendency. The median is the value that separates the data into two equal parts, with half of the observations above the median and half below. The median is appropriate for ordinal data because it does not assume that the intervals between values are equal.

For ratio and interval level variables, the mean is the most appropriate measure of central tendency. The mean is calculated by adding up all the values and dividing by the number of observations. It is appropriate for ratio and interval data because these data types have equal intervals between values, and the mean takes into account the magnitude of the values.

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Answer: 40.82

Step-by-step explanation: You have to multiply pi and 13 to get the answer

Answer:

1/4<x<6/5

Step-by-step explanation:

4x+1<8x ⇒ 1<4x ⇒ 1/4<x

8x<3x+6 ⇒ 5x<6 ⇒ x<6/5

Answer:

8

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

1/x=20/160

20x=160

x=8

The probability that there will be 4 failure in particular week is 0.00622.

e(x) = 0.75 = v(x)

Given,

If electricity power failures occur according to a Poisson distribution with an average of 3 failures over 4 weeks, what is the probability that there will be 4 failures during a particular week?

To know e(x) are v(x);

From the given info,

So 3/4 failure per 4/4 weeks.

That means on average 0.75 failures per week.

The probability that there will be 4 failure in particular week,

\(\frac{e^{-0.75}0.75^{4}}{4!}=\frac{0.4723*0.3164}{24}=0.00622\)

e(x) = Average = 0.75

Poisson distribution have mean and variance same.

So v(x) = 0.75

Hence, the probability that there will be 4 failure in particular week is 0.00622.

e(x) = 0.75 = v(x)

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Using the subtraction operation, the new long-life tire with 3/8 inches depth is deeper than the more typical 7/32 inches by 5/32 inches.

Subtraction operations involve the minuend, the subtrahend, and the result called the difference.

It is one of the four basic mathematical operations, including addition, multiplication, and division.

The depth of the new long-life tire = 3/8 inches

The depth of the old tire = 7/32 inches

The difference = 5/32 inches (3/8 - 7/32)

Thus, the depth difference between the new long-life tire and the typical tire is 5/8 inches.

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The future value of an annuity is  $351,135. The correct option is B.

To calculate the future value of an annuity, we can use the formula:

FV = Pmt x [(1 + r)^n - 1] / r

where:

Pmt is the amount of the periodic payment

r is the interest rate per period

n is the number of periods

In this case, Pedro is investing $17,000 at the beginning of each year for 11 years, so:

Pmt = 17,000

n = 11

The interest rate is given as 12 percent, but we need to convert it to a periodic interest rate. Since Pedro is making annual payments, the periodic interest rate is also annual. So:

r = 12% per year

Now we can calculate the future value using Appendix C to find the FV factor for 12% and 11 periods:

FV factor = 3.784

FV = 17,000 x [(1 + 0.12)^11 - 1] / 0.12

FV = 17,000 x 3.784

FV = $64,328

So the future value of Pedro's investments is $64,328.

However, this is only the future value of his first investment of $17,000. To find the total future value of all his investments, we need to add up the future value of each individual investment. We can use the formula we just calculated to find the future value of each investment, and then add them up:

Total FV = $17,000 x 3.784 + $17,000 x 3.784^2 + ... + $17,000 x 3.784^11

Using a financial calculator or spreadsheet software, we can calculate this sum to be approximately $351,135.

Therefore, the answer is B. $351,135.

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Answer:

1 ofc

Step-by-step explanation:

Think of it:

1% is pretty much \(\frac{1}{100}\)

so the equal to that is 1

I hope this answers your question :) If you want to mark me as brainliest (its ok if not :) im just trying to get enough to unlock messages

i. The Fourier transform of (t - 2) - 38(t - 3) is [(jw)^2 + 38jw]e^(-2jw). ii. The Fourier transform of e^(-2t)u(t) is 1/(jw + 2). iii. The Fourier transform of e^(-3t+12)u(t-4) can be obtained using the result of ii. as e^(-2t)u(t-4)e^(12jw). iv. The Fourier transform of e^(-2|t|)cos(t) is [(2jw)/(w^2+4)].

i. To find the Fourier transform of (t - 2) - 38(t - 3), we can use the linearity property of the Fourier transform. The Fourier transform of (t - 2) can be found using the time-shifting property, and the Fourier transform of -38(t - 3) can be found by scaling and using the frequency-shifting property. Adding the two transforms together gives [(jw)^2 + 38jw]e^(-2jw).

ii. The function e^(-2t)u(t) is the product of the exponential function e^(-2t) and the unit step function u(t). The Fourier transform of e^(-2t) can be found using the time-shifting property as 1/(jw + 2). The Fourier transform of u(t) is 1/(jw), resulting in the Fourier transform of e^(-2t)u(t) as 1/(jw + 2).

iii. The function e^(-3t+12)u(t-4) can be rewritten as e^(-2t)u(t-4)e^(12jw) using the time-shifting property. From the result of ii., we know the Fourier transform of e^(-2t)u(t-4) is 1/(jw + 2). Multiplying this by e^(12jw) gives the Fourier transform of e^(-3t+12)u(t-4) as e^(-2t)u(t-4)e^(12jw).

iv. To find the Fourier transform of e^(-2|t|)cos(t), we can use the definition of the Fourier transform and apply the properties of the Fourier transform. By splitting the function into even and odd parts, we find that the Fourier transform is [(2jw)/(w^2+4)].

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Answer:

yes

Step-by-step explanation:

For the lengths to form a triangle, the sum of any 2 must be greater than the third, that is

3 + 9 = 12 > 8

3 + 8 = 11 > 9

9 + 8 = 17 > 3

Thus the 3 lengths can form a triangle

For seven hours of landscaping, Company B would be less expensive than Company A.

An equation is defined as any pair of expressions that both contain the equal sign.

Because of this, Company charges $35 per hour and a $250 equipment fee, compared to Company B's $25 per hour and $300 equipment fee.

For t hours of landscaping, Company A will bill the following:

A = 35t + 250 (1) (1)

In a similar vein, Company B bills the following sum for t hours of landscaping:

B = 25t + 300 (2) (2)

Solve equation (1) now with t = 7:

A = 35 (7) + 250

A = 245 + 250

A = 495

So, for 7 hours of landscaping, business A would bill $495.

Similarly, when equation (2) is resolved for t = 7,

B = 25(7) + 300

B = 175 + 30

B = 475

So, for 7 hours of gardening, business B would bill $475.

Therefore, for seven hours of landscaping, Company B would be less expensive than Company A.

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Answer:

letter a!

Step-by-step explanation:

In the theater, that have 1,464 seats.

1426 seats are in "regular" sections

38 seats are  "premium" front-row section

The seat arrangement is solved by division. In this case the 62 equal spaced is the divisor while the number of seats is the in each row is the quotient

The division is as follows

1464 / 62

= 23 19/31

The number of seats in the regular section is 23 * 62 = 1426

The remainder will be arranged in premium front row

using equivalent fractions

19 / 31 = 38 / 62

the remainder is 38 and this is the seat for the premium front row section

OR 1464 - 1426 = 38 seats

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Among the provided answer options, the closest value to -0.555 is -0.55, which is option c. Therefore, option c (-0.55) is the value of c that satisfies P(Z ? c) = 0.71.

The notation P(Z ? c) represents the probability that a standard normal random variable Z is less than or equal to c. To find the value of c that corresponds to P(Z ? c) = 0.71, we need to determine the Z-score associated with this probability.

Using a standard normal distribution table or a calculator, we can find that a Z-score of approximately 0.555 corresponds to a cumulative probability of 0.71. However, since we are looking for the value of c in P(Z ? c), we need to consider the opposite inequality.

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