which of the following is equivalent to 3(2x-5)-4(x-3)=7

Answer:40%

total 60

24 is 40% of 60

Answer:

40

Step-by-step explanation:

24/60 x 100

40%

Answer:

6 ^ 6x = 20

6x * log 6 = log (20)

6x * 0.77815125038 = 1.3010299957

6x = 1.6719500162

x = 0.278658336

Double check

6 ^ 6* 0.278658336 =

6 ^ 1.671950016  = 20

Step-by-step explanation:

Answer:

The fourth listed answer:

Domain: All Real numbers

Range : { f{x) | f(x) [tex]\leq[/tex] 0, f(x) = 1 }

Step-by-step explanation:

The domain consists of all Real numbers (notice that you have a well defined f(x) value for all possible x on the horizontal axis.

The Range is associated with the set of those f(x) values (on the vertical axis) that are connected via the functional relationship with a value  "x" of the domain. The line with positive slope extends to all f(x) values that are [tex]\leq[/tex] 0 (smaller than or equal to zero). While the flat horizontal line on the right of the plot corresponds to the line f(x) =1 (only one value of f(x) [1} connects with the x-values of the Domain that are larger than 3.

Answer: The answer is c

Step-by-step explanation: Lets be freinds

Answer:

8,15,17

Step-by-step explanation:

Answer:

I got 8,15, and 17 too just because of one side is short the other to should be longer.

Step-by-step explanation:

Answer:

see explanation

Step-by-step explanation:

The opposite angles of the inscribed quadrilateral are supplementary, thus

∠ A + ∠ C = 180°, substitute values

14z - 7 + 8z = 180

22z - 7 = 180 ( add 7 to both sides )

22z = 187 ( divide both sides by 22 )

z = 8.5

Thus

∠ A  = 14z - 8 = 14(8.5) - 7 = 119 - 7 = 112°

∠ C = 8z = 8(8.5) = 68°

∠ D = 10z = 10(8.5) = 85°

The sum of the 4 interior angles = 360°, thus

∠ B = 360° - (112 + 68 + 85)° = 360° - 265° = 95°

Thus

∠ A = 112°, ∠ B = 95°, ∠ C = 68°, ∠ D = 85°

Answer:

y = -x +7

Step-by-step explanation:

A line that is parallel must have the same slope in this case -x.

Since the y-intercept of the needed solution is 7, the equation is:

y = -x+7

Please mark my answer as brainiest

To determine the correct standard form of a quadratic equation from the given options, we expand (x-3)2 to get [tex]x^2 - 6x + 9 = 0,[/tex] which is the correct standard form [tex]ax^2 + bx + c = 0.[/tex]

To write the quadratic equation in standard form, you need to remember that the standard form is ax2 + bx + c = 0. The given equations will be compared to this standard form to find the correct answer.

Given Equations:

(x-3)2=0

0x2+9=0

0x2+6x+9=0

0x2 - 6x +9=0

Only the first equation, (x-3)2=0, can be simplified to the standard quadratic form if expanded. Let's expand it:

(x-3)2 = x2 - 6x + 9

So the correct standard form of the given equation is x2 - 6x + 9 = 0.

The other options, due to having a coefficient of 0 for x2, are not proper quadratic equations as they do not have the quadratic term.

Step-by-step explanation:

Theoretical probability : Theoretical probaility is the value expected from an outcome or an equation assuming perfect conditions. It is based on theories and hypotheisi and not based on real life incidents.

Experimental probability : When we performa n experiment, the values we get are experimental probability. These are actual rsults of the eperiemnt under study

Independent probability : Two events A and B are said to be independent if the fact that one event has occurred does not affect the probability that the other event will occur.

Dependent probability: If whether or not one event occurs does affect the probability that the other event will occur, then the two events are said to be dependent.

Since the results of the experiment are used and based on the above definitions. we should use experiement probabiity (Option B) to predict he probability of the next number showing on the top face

Answer:

48 cm

Step-by-step explanation:

The midsegment of a trapezoid is calculated as

[tex]\frac{sumofbases}{2}[/tex], thus

XY = [tex]\frac{34+62}{2}[/tex] = [tex]\frac{96}{2}[/tex] = 48 cm

Answer:

119 student tickets and 95 non-student tickets

Step-by-step explanation:

I did a trial-and-error solution.

I started with 107 students and 107 non-students:

(107*$7)+(107*$12) = $2033

It was too high, which tells us that there should be more who paid for the cheaper price.

I ended up with 119 and 95:

(119*$7)+(95*$12) = $1973

Answer:

Sample Response: Partial and negative tickets cannot be sold, so the minimum number values of e and s are 0. If s = 0, then e = 16, and if e = 0, then s = 20. Therefore, the values of s are whole numbers from 0 to 20 and the values of e are whole numbers between 0 and 16. The greatest number of student tickets sold was 20 and the greatest number of nonstudent tickets sold was 16.

Step-by-step explanation:

Answer:

The comparison using median and IQR is best because one of the graphs is not symmetrical.

Step-by-step explanation:

The following information is missing

A box plot titled Number of Minutes Women Spend on Breaks. The number line goes from 30 to 70. The whiskers range from 30 to 54, and the box ranges from 34 to 50. A line divides the box at 48.  

A box plot titled Number of Minutes Men Spend on Breaks. The number line goes from 30 to 70. The whiskers range from 30 to 68, and the box ranges from 36 to 60. A line divides the box at 48.  

The business owner uses the median and IQR to determine the center and variability of the data sets. Which best describes the comparison?

The comparison would be more accurate using the mean and MAD because one of the graphs is symmetric.

The comparison would be more accurate using the mean and MAD because the median of both data sets is the same.

The comparison using median and IQR is best because one of the graphs is not symmetrical.

The comparison using median and IQR is best because the median is greater than the IQR for both data sets.

Mean and MAD are useful for comparison when both data sets are symmetrical.

In the women box plot the Q1 is at 34, the median is at 48, and the Q3 is at 50, so it is not symmetrical (the difference between the median and the Q1, and the Q3 and the median is not the same)

Answer:

4 = b

5 = a

6 = a

9.24 days does it take 500 grams of the isotope to decay to 250 grams.

Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions.

The operator that performs the arithmetic operation is called the arithmetic operator.

Operators which let do a basic mathematical calculation

Given that

The isotope thulium-167 is used in laser scans for medical treatments

The rate of decay is 0.075

The isotope thulium-167 is used in laser scans for medical treatments.

If we started with 500 grams then we are looking for when only 250 grams are left so

y = y₀e^(-0.075t)

y₀ represents the initial amount of radioactive material

250 = 500e^(-0.075t)

0.5 = e^(-0.075t)  

Now take the natural log of both sides which gives us,

ln0.5 = -0.075t

t = ln0.5/(-0.075)

t = 9.24 days

Hence, 9.24 days does it take 500 grams of the isotope to decay to 250 grams.

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Given:

Given that the measure of the exterior angle F is 142°

We need to determine the measure of ∠DFE

Measure of ∠DFE:

The ∠DFE and the exterior angle F are linear pairs.

Thus, the linear pair of angles add up to 180°

Hence, we have;

[tex]\angle DFE+142^{\circ}=180^{\circ}[/tex]

Subtracting both sides of the equation by 142, we get;

[tex]\angle DFE=38^{\circ}[/tex]

Hence, the measure of ∠DFE is 38°

Thus, Option a is the correct answer.

[tex]-3x+5<17\\-3x<12|:(-3)\\x>-4[/tex]

x∈(-4;+∞)

/\/\/\/\/\/\/\/\/\/\/\

P.S. Hello from Russia :^)

Answer:

d is correct for me

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

Answer:

I think the graph that best matches the discription is option D (so the last one)

A graph representing this coffee shop chain's sales would likely resemble a 'W', with two significant turning points, never declining below $250,000, and a general upward trend indicating sales are expected to increase.

In Mathematics, when we discuss turning points, we generally refer to the points on a graph where the curve changes direction. If sales are increasing in the long run and there have been two 'turning points' this year, the graph should generally showcase a positive upward trend, dips at the points of turning, and then subsequent increases. Given that the least amount of sales during the year is about $250,000, the graph should never fall below this point.

In this context, the turning points would reflect changes in sales - a drop followed by a rise. It’s important to note that without the exact data or the graph, I cannot definitively identify it. However, considering the given descriptive data, we can deduce that the graph might look somewhat like a 'W', with the middle point not declining below $250,000 and a general upward trend.

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Answer:

12.5

Step-by-step explanation:

Vetrx is at: (0,-1) because other y values are repeated

y = a(x - 0)² - 1

y = ax² - 1

Using (1,0.5)

0.5 = a(1)² - 1

a = 1.5

f(x) = 1.5x² - 1

f(-3) = 1.5(-3)² - 1

f(-3) = 12.5

Answer:

D. 12.5

Step-by-step explanation:

Answer:

{1, 3, 5, 7, 9, 11}

The sample space of the odd number will be (1, 3, 5, 7, 9, 11).

Sample space simply means the possible outcomes that we can get when we make an experiment.

Odd numbers cannot be divided by 2. Examples include 1, 9, 11, 23, 45, 75 etc. In this case, the odd numbers that we can get from 1 to 11 will be 1, 3, 5, 7, 9 and 11 and this will be the sample space.

In conclusion, the sample space will be (1, 3, 5, 7, 9, 11)

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Answer:

720°

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

Multiply 11 by 2 to get to 22; do the same to 4

Answer:

x = -5/2

Step-by-step explanation:

Line of symmetry of a quadratic is:

x = h

Where h is the x-coordinate of the vertex.

For any quadratic,

y = ax² + bx + c

h = -b/2a

For the given quadratic,

y = x² + 5x

h = -5/(2×1) = -5/2

Equation of the line of symmetry therefore is

x = -5/2

Answer:

x = -5/2

Step-by-step explanation:

Hope I helped ya.

I know I'm late.

< Sarah >

Answer:

x = 1 and

Y = 2

Step-by-step explanation:

1. Y = x + 1

2. X + Y = 3

Substitute equation 1 into equation 2

X + Y = 3

X + X + 1 = 3

2x + 1 = 3

Subtract 1 from both sides to eliminate 1 on the left side

2x + 1 - 1 = 3 - 1

2x = 2

Divide both sides by 2 to isolate x

2x/2 = 2/2

x = 1

Substitute 1 for x in either equation to get Y

Using equation one, we have

Y = x + 1

= 1 + 1

= 2

x = 1

Y = 2

Check

X + Y = 3

1 + 2 = 3

3 = 3

The shadow length of Kyle is 1.2 feet,if a lighthouse is 150 feet tall and cast a shadow of 30 feet. Kyle is standing next to a lighthouse and is 6 feet tall.

Step-by-step explanation:

The given is,

                  A lighthouse is 150 feet tall.

                  Cast a shadow of 30 feet.

                  Kyle is 6 feet tall.

Step:1

                 Ref the attachment,

                 From triangle ABC,

                               tan ∅ = [tex]\frac{Opp}{Adj}[/tex]......................(1)

                 Where, Opp = AB = 150 feet

                                Adj = BC = 30 feet

                 Equation (1) becomes,

                              tan ∅ = [tex]\frac{150}{30}[/tex]

                                        = 5

                                     ∅ = [tex]tan^{-1}[/tex] 5

                                     ∅ = 78.69°

                 ∅ is same for both ABC and PQR triangle.

                 From triangle PQR,

                               tan ∅ = [tex]\frac{Opp}{Adj}[/tex]......................(1)

                 Where, Opp = PQ = 6 feet

                                Adj = QR = x

                 Equation (1) becomes,

                      tan 78.96° = [tex]\frac{6}{x}[/tex]

                                     5 = [tex]\frac{6}{x}[/tex]

                                     x = [tex]\frac{6}{5}[/tex] = 1.2

                 Shadow length of Kyle, x = 1.2 feet

Result:

           The shadow length of Kyle is 1.2 feet, if a lighthouse is 150 feet tall and cast a shadow of 30 feet. Kyle is standing next to a lighthouse and is 6 feet tall.

Final answer:

The product of 4/9 and 72 is found by multiplying 4 by 72 and then dividing by 9, giving us the final answer of 32.

Explanation:

To find the product of 4/9 and 72, you multiply the two numbers together. Here's how you do it:

Write the multiplication expression: 4/9 × 72.

Since 72 is the same as 72/1, you can think of this as multiplying two fractions: (4/9) × (72/1).

Multiply the numerators together: 4 × 72 = 288.

Multiply the denominators together: 9 × 1 = 9.

Combine the results to find the fraction form of the answer: 288/9.

Simplify the fraction by dividing numerator and denominator by their greatest common divisor, which is 9: 288 ÷ 9 = 32.

The product of 4/9 and 72 is 32.

Answer:

option D

Step-by-step explanation:

Given,

half life of silicon-32 = 710 years

Present silicon-32, N₀ = 90 gm

silicon-32 after 600 years,N = ?

[tex]k = \dfrac{-0.693}{t}[/tex]

[tex]k = \dfrac{-0.693}{710}[/tex]

k = -0.000976

Now,

[tex]N = N_0 e^{kt}[/tex]

[tex]N =90\times e^{-0.000976\times 600}[/tex]

[tex]N = 50.104\ g[/tex]

Hence, the correct answer is option D.

The amount of silicon-32 remaining after 600 years is 50.102 grams

Half life is the time taken for a substance to decay to half of its original amount. It is given by:

[tex]N=N_o(\frac{1}{2} )^\frac{t}{t_\frac{1}{2} } \\\\N\ is\ the\ value\ of\ the\ substance\ after\ t\ year, t_\frac{1}{2} \ is\ the\ half\ life\\and\ N_o\ is\ the \ original\ amount[/tex]

Given that half life = 710 years, original amount is 90 g, t = 600 years, hence:

[tex]N=90(\frac{1}{2} )^\frac{600}{710} \\\\N=50.102\ g[/tex]

The amount of silicon-32 remaining after 600 years is 50.102 grams

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Answer:

1, 3, 4, and 7

Step-by-step explanation:

all of these are true