HELP ASAP!!!!
thank you so much if you helped!!

12 collect comics and drawing

5 collect comics

7 drawing

x

30=12+75+x

x=6

Here any of the data are counting the same people because each one has a different description, so you can solve if like this

Answer:

-7

Step-by-step explanation:

Answer:

x= -7

Step-by-step explanation:

isolate the variable by dividing each side by factors that don't contain the variable.

Answer:

0.49 = \(\frac{49}{100}\)

4.542 = 4 \(\frac{542}{1,000}\)

Step-by-step explanation:

0.49 is equivalent to 49/100 because 0.49 represents the hundredth place.

4.542 is equivalent to 4 542/1,000 because .542 is representing the thousandths place, and the 4 is a whole number.

Hope this helps!

Answer:

2x + 3 ≥ 11 or 4x - 7 ≤ 1

Step-by-step explanation:

2x + 3 ≥ 11 or 4x - 7 ≤ 1 is the correct answer for this question.

2x + 3 ≥ 11 and 4x - 7 ≤ 1

⇒ 2x ≥ 8 and 4x ≤ 8

⇒ x ≥ 4 and x ≤ 2

Hope this helps.

Answer:

17.15 cm

Step-by-step explanation:

68.6/4 = 17.15 cm

Answer:

Josh 18

Carmen 12

Step-by-step explanation:

3/5 of 30 means multiply

3/5 * 30

3 * 30 = 90

90/5 = 18

Josh paid 18

Carmen paid the rest

30-18 = 12

Carmen paid 12

Answer:

See below!

Step-by-step explanation:

Total bill = $30

Josh paid:

= 3/5 of 30

Key: "of" means "to multiply"

= (3 x 30)/5

= 90/5

So, Josh paid $18 of the bill.

Carmen paid:

= Total - Josh paid

= 30 - 18

\(\rule[225]{225}{2}\)

Answer:

2.85x +1.27y ≥ 2,700

Step-by-step explanation:

In this situation, the ≥ inequality will represent "meet or exceed". In this particular problem it is required to meet the goal of 2,700 however, exceeding could be a value of more than 2,700 as long as it at least meets the required amount of 2,700. The reason why these inequalities <, ≤ are incorrect is because the inequality will basically be saying that the problem is 2.85x + 1.27y is less than the amount of 2,700 or less than or equal to the amount of 2,700. Also, inequality > would be wrong because, unlike the other wrong choices of inequalities, they're all NOT fitting in with the "meet or exceed" part of meeting the value of 2,700 with a possibility of still having a more excellent value.

The measure of y in the diagram given above is 135°

The measure of the sum of angle on a straight line is 180°

The Angles on the straight line are : 45° and y

Taking the sum and equating to 180°

45° + y = 180°

subtract 45 from both sides to isolate y

y = 180° - 45°

y = 135°

Therefore, the value of y in the diagram is 135°

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Answer:

128degrees

Step-by-step explanation:

Note that the given triangle ABC is an isosceles triangle with base angles equal, hence;

m∠BAC = m∠BCA

7x+1 = 5x+9

7x - 5x = 9-1

2x = 8

x = 8/2

x = 4

m∠BAC = 5x+6

m∠BAC = 5(4)+6

m∠BAC = 26 degrees

The vertex angle = 180 - (26+26)

The vertex angle = 180 - 52

The vertex angle = 128degrees

Answer:

131.7 min so c

Step-by-step explanation:

Answer:

The answer that I got is not listed in the options but the closest to that is C) 113 mins

Step-by-step explanation:

btw I got 131.7

The ship is approximately 14.879 miles away from the port, and its bearing from the port is approximately 26.35°.

To find the exact values of the ship's distance from the port and its bearing from the port, we can perform the necessary calculations.

Ship's movement on a bearing of 34.0°:

Horizontal component = 13.5 mi * cos(34.0°) ≈ 11.1764 mi

Vertical component = 13.5 mi * sin(34.0°) ≈ 7.3564 mi

Ship's movement due east:

Horizontal component = 3.7 mi

Vertical component = 0

Vector addition:

Horizontal displacement = 11.1764 mi + 3.7 mi ≈ 14.8764 mi

Vertical displacement = 7.3564 mi + 0 ≈ 7.3564 mi

Distance from the port:

Distance = √(Horizontal displacement² + Vertical displacement²)

= √(14.8764 mi² + 7.3564 mi²)

≈ √(221.142 m²)

≈ 14.879 mi

Bearing from the port:

Bearing = arctan(Vertical displacement / Horizontal displacement)

= arctan(7.3564 mi / 14.8764 mi)

≈ 0.4601 rad (in radians)

≈ 26.35° (in degrees)

The ship is approximately 14.879 miles away from the port. The ship's bearing from the port is approximately 26.35°.

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--The given question is incomplete, the complete question is given below " Aship leaves port on a bearing of 34.0° and travels 13.5 mi. The ship then turns due east and travels 3.7 mi. How tar is the ship from port, and what is its bearing from port?"--

The answer are,

x=14√2

y=9.90

z=17.15

A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry. A triangle with vertices A, B, and C is denoted \triangle ABC. In Euclidean geometry, any three points, when non-collinear, determine a unique triangle and simultaneously, a unique plane.

here, we have,

from the given figure,

we get.

x=14√2

y=9.90

z=17.15

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Answer:

this is what i got when i graphed it.

Step-by-step explanation:

The Laplace Transform of f(t) isL{f(t)} = L{t} + L{t + π}u(t − π) − L{t − 2π}u(t − 2π) + ...

                            = (1/s^2) + e^{−πs}(1/s^2) − e^{-2πs}(1/s^2) + ...= (1/s^2)[1 + e^{−πs} − e^{−2πs} + ...]

Given function is,f(t) ={ t, 0 < t < π π < t < 2π}

where f(t + 2 π) = f(t)

Let's take Laplace Transform of f(t)

                     L{f(t)} = L{t} + L{t + π}u(t − π) − L{t − 2π}u(t − 2π) + ...f(t + 2π) = f(t)

∴ L{f(t + 2 π)} = L{f(t)}⇒ e^{2πs}L{f(t)} = L{f(t)}

     ⇒ [e^{2πs} − 1]L{f(t)} = 0L{f(t)} = 0

when e^{2πs} ≠ 1 ⇒ s ≠ 0

∴ The Laplace Transform of f(t) is

                       L{f(t)} = L{t} + L{t + π}u(t − π) − L{t − 2π}u(t − 2π) + ...

                               = (1/s^2) + e^{−πs}(1/s^2) − e^{-2πs}(1/s^2) + ...

                              = (1/s^2)[1 + e^{−πs} − e^{−2πs} + ...]

The Laplace Transform of f(t) isL{f(t)} = L{t} + L{t + π}u(t − π) − L{t − 2π}u(t − 2π) + ...

                            = (1/s^2) + e^{−πs}(1/s^2) − e^{-2πs}(1/s^2) + ...= (1/s^2)[1 + e^{−πs} − e^{−2πs} + ...]

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9514 1404 393

Answer:

  2675.08 kg/m³

Step-by-step explanation:

  \(\dfrac{167\text{ lb}}{\text{ft}^3}\times\dfrac{0.45359237\text{ kg}}{1\text{ lb}}\times\left(\dfrac{1\text{ ft}}{0.3048\text{ m}}\right)^3\approx\boxed{2675.08\text{ kg/m$^3$}}\)

Answer:

x = 19

Step-by-step explanation:

Since they are supplementary, that means they all add up to 180°

So, 5x + 4 + x - 2 + 3x + 7 = 180

Step 1: Add the numbers

5x + 4 + x - 2 + 3x + 7 = 180

5x + 9 + x + 3x = 180

Step 2: Combine like terms

5x + 9 + x + 3x = 180

9x + 9 = 180

Step 3: Subtract 9 from both sides of the equation

9x + 9 = 180

9x + 9 - 9 = 180 - 9

9x = 171

x = 19

Solution:

x = 19

hope this helps and is right!! p.s. i really need brainliest :)

Answer:

122 degrees

Step-by-step explanation:

*A pentagon has a total of 540degrees

1st step: take all of the degrees and add them up:

105 + 90 + 86 + 137 = 418

2nd step: subtract the sum from 540:

540 - 418 = 122

The missing angle is 122 degrees

Answer:

∠ C = 122°

Step-by-step explanation:

The sum of the interior angles of a polygon is

sum = 180° (n - 2) ← n is the number of sides

Here n = 5, then

sum = 180° × 3 = 540°

Sum the given angles and equate to 540°

∠ C + 137° + 86° + 105° + 90° = 540 , that is

∠ C + 418° = 540° ( subtract 418° from both sides )

∠ C = 122°

Answer:

C=2πr=2·π·56≈351.85838

Step-by-step explanation:

The equation for the logarithmic function that has the following transformation from the parent logarithmic function. The other factors are mentioned in the answer below.

An essential tool for arithmetic calculations is the logarithmic function. John Napier, a Scottish mathematician, physicist, and astronomer, made the discovery of logarithms in the 16th century. It has a wide range of uses in complex scientific and astronomical calculations. Exponential functions and logarithmic curves are closely related, and the latter is thought of as the inverse of the former.

Parent function is y = log x

1. Shifted 3 units left,

y = log (x+3)

2. The vertical compression by a factor of 2,

y = 2 log(x+3)

3. Reflection across the y-axis,

y = 2 log(-x+3)

4. Shifting down by 5 units,

y = 2 log(-x+3)-5

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The 95% confidence interval for the proportion of all American adults who support same-sex marriage is 0.485 to 0.549.

The following formula is used to calculate a confidence interval for the proportion of all American adults who support same-sex marriage

KI = p ± z*(√(p*(1-p)/n))

where:

p = percentage of respondents who support same-sex marriage

n = sample size (total number of respondents)

z = z-score for the desired confidence level

substitute all the values in the above formula,

CI = 0.517 ± 1.96*(√(0.517*(1-0.517)/n))

To compute confidence intervals, we need to know the sample size (n). the sample size is large, so we can use the normal distribution.

the random sample size of 1000 is taken as no sample size is specified.

For n = 1000,

CI = 0.517 ± 1.96*(√(0.517*(1-0.517)/1000))

= 0.517 ± 0.032

Therefore, the 95% confidence interval for the proportion of all American adults who support same-sex marriage is 0.485 to 0.549.

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the speed of a point on the edge of the flywheel experiencing a centripetal acceleration of 900.0 cm/s^2 is approximately 134.16 cm/s.

To find the speed of a point on the edge of the flywheel, we can use the formula for centripetal acceleration:

a = (v^2) / r

Where:

a = centripetal acceleration

v = velocity or speed

r = radius of the flywheel

In this case, the centripetal acceleration is given as 900.0 cm/s^2, and the radius is 20.0 cm. We can rearrange the formula to solve for the speed:

v = √(a * r)

Substituting the given values:

v = √(900.0 cm/s^2 * 20.0 cm)

v = √(18000.0 cm^2/s^2)

v ≈ 134.16 cm/s

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we can conclude that there is a significant difference between the observed and expected frequencies of race categories.

To determine if the housing complex's distribution of residents by race is significantly different from the population distribution, we can perform a chi-square goodness-of-fit test.

First, we need to calculate the expected frequencies for each race category based on the population distribution. The expected frequencies can be calculated as follows:

Expected frequency for Hispanics = 0.28 x 94 = 26.32
Expected frequency for Blacks = 0.24 x 94 = 22.56
Expected frequency for Whites = 0.35 x 94 = 32.9
Expected frequency for Asians = 0.12 x 94 = 11.28
Expected frequency for Others = 0.01 x 94 = 0.94

We can then calculate the chi-square statistic as follows:

χ2 = Σ (O - E)2 / E

where O is the observed frequency and E is the expected frequency for each race category.

Using the data from the table, we can calculate the chi-square statistic as follows:

χ2 = [(212-11.28)2/11.28] + [(202-26.32)2/26.32] + [(270-32.9)2/32.9] + [(22-22.56)2/22.56] + [(0-0.94)2/0.94] = 52.06

We have 5 categories and 1 parameter estimated (the expected frequencies), so the degrees of freedom for the test are df = 5 - 1 = 4.

Using a chi-square distribution table with 4 degrees of freedom and a significance level of 0.05, the critical value is 9.49.

Since our calculated chi-square statistic (52.06) is greater than the critical value (9.49), we can reject the null hypothesis that the housing complex's distribution of residents by race is consistent with the population distribution. Therefore, we can conclude that there is a significant difference between the observed and expected frequencies of race categories.

For the follow-up analysis, we can perform post-hoc tests to determine which race categories have significantly different distributions. One way to do this is to perform chi-square tests of independence between the housing complex's distribution and the population distribution for each race category. We can also calculate the standardized residuals for each race category to determine which categories have the largest contributions to the overall chi-square statistic.

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Answer:

the answer is A

Step-by-step explanation:

hope it's help

The linear approximation to f(x, y) = 4 ln(x² - y) at (4, 15, 0) is L(x, y) = 8(x - 4) + 12(y - 15).

The linear approximation is determined by evaluating the partial derivatives of f(x, y) at the given point (4, 15, 0). The partial derivative with respect to x is f_x = 8x/(x² - y), and the partial derivative with respect to y is f_y = -4/(x² - y).

Evaluating these derivatives at (4, 15, 0), we obtain f_x(4,15) = 8(4)/(4² - 15) = 32/11 and f_y(4,15) = -4/(4² - 15) = -4/11. Substituting these values into the linear approximation equation L(x, y), we have L(x, y) = 8(x - 4) + 12(y - 15).

To approximate f(4.1, 15.2), substitute x = 4.1 and y = 15.2 into L(x, y) and compute the result.

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\(\\ \rm\Rrightarrow 2x+3x+5x=30000\)

\(\\ \rm\Rrightarrow 10x=30000\)

\(\\ \rm\Rrightarrow x=3000\)

The largest number of fence post that can possibly be cut from the log is 23.8( nearest tenth)

A word problem in math is a math question written as one sentence or more. This statements are interpreted into mathematical equation or expression.

For us to know the number of fence post that can be obtained from the log, we need to convert the length of the log into cm

Therefore;

1m = 100cm

16m = 16× 100 = 1600 cm

Therefore the maximum number of fence post that can be obtained is

1600/70 = 160/7

= 23.8 ( nearest tenth)

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