Please help me out with this guys

Step-by-step explanation:

-7(-4p+1) + 2p

-7 x -4 = 28p

-7 x 1 = -7

28p + 2p = 30p

so

30p-7

Answer:

h ≈ 235

Step-by-step explanation:

We know there is a tower with h height. There is also a wire (that's diagonal) travelling to the ground. It touches the ground. The angle it makes with the ground is 57°.

Refer to the image below of what the problem should look like.

Refer to the trigonometric ratios:

tangent = opposite side/adjacent side

sine = opposite side/hypotenuse

cosine = adjacent side/hypotenuse

We can use sine because we are looking for the opposite side (to the angle) and we have the hypotenuse. So:

sine = opposite side/hypotenuse

sin(57) = h/280

sin(57) / 1 = h / 280

Cross multiply:

sin(57) (280) = 1 (h)

Input to calculator:

h = 234.827759...

h ≈ 235

Answer:

C. (4, -3)

Step-by-step explanation:

edge 2020 :D

also different slopes in the y = mx + a, so there are different slopes between 1/2 and 2 and different y-intercepts, -2 and -5. there can be one solution but you gotta figure that out

We can conclude the following answers -

The general equation of a straight line is -

y = mx + c

where -

{m} is the slope of the line.

{c} is the {y} - intercept.

Given is that on a coordinate plane, a line goes through (0, negative 1) and (2, negative 2). This line represents Kaden’s Graph. Also a system of equations is given as -

x + 2y = - 2

y = (x/2) - 5

{ 1 } -

Kaden's graph passes through the points -

(0, - 1)

(2, - 2)

We can write the equation of the Kaden's graph as -

y = {(- 2 + 1)/(2 - 0)}x + {- 1}

y = - x/2 - 1

There is only one equation for Kaden's graph. Hence, it has infinitely many solutions.

{ 2 } -

x + 2y = - 2

y = (x/2) - 5

We can write -

x = - 2 - 2y

So -

y = (- 2 - 2y)/2 - 5

y = - 1 - y - 5

2y = - 6

{y} = -3

x = - 2 - 2 x - 3

{x} = 4

Therefore, we can conclude that -

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Answer:

First angle: 48°

Second angle: 36°

Third angle: 96°

Step-by-step explanation:

The sum of the three angles of a triangle = 180°

Let the measure of the first angle be a°

Then second angle measure = (a - 12)°

Third angle measure = 2a°

Adding up all these should equal 180°

⇒  a + a - 12 + 2a = 180

⇒  4a - 12 = 180

⇒ 4a = 180 -+ 12

⇒ 4a = 192

⇒  a = 192/4 = 48°

Thus the first angle is 48°

Second angle = 48 - 12 = 36°

Third angle = 2 x 48 = 96°

Answer:

Step-by-step explanation:

I think the easiest way would be to plot the points onto a graph. See the attached graph.

If you want to solve it, you can use the slope formula:

\(m = \frac{y2-y1}{x2-x1}\)

Where m = slope

From the two points we are given:

(2, -1) -----> x1 = 2 , y1 = -1

(2,5) ----->  x2 = 2 , y2 = 5

Plug these values into the slope formula and you get:

\(m = \frac{y2-y1}{x2-x1}\)

m = \(\frac{5 - (-1)}{2 - 2}\) = \(\frac{5 + 1}{0} = \frac{6}{0}\) = ∞

This means that the slope m = ∞. In other words, there is no slope or gradient because the line is vertical.

Answer:

7

Explanation:

The cardinality of a set is the number of elements in the set

Given the set W = {x | x is a day of the week}

The days of the week are {Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday}

Hence the set W will be;

W = {Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday}

n(W) = 7 (since there are 7 days in a week)

Hence the cardinality of the set W is 7

Based on the given data, we cannot conclude that there is a significant difference in the mean rate of return between domestic and international stocks.

To test if there is a significant difference in the mean rate of return between domestic and international stocks, we can perform a two-sample t-test with unequal variances.

Here are the steps to carry out the test:

Step 1: Determine the level of significance:

The level of significance = 0.05.

Step 2: Compute the test statistic:

We can use the two-sample t-test with unequal variances to compute the test statistic. The formula for the test statistic is:

t = (x1 - x2) / sqrt((s1^2/n1) + (s2^2/n2))

where x1 and x2 are the sample means for domestic and international stocks, s1 and s2 are the sample standard deviations for domestic and international stocks, and n1 and n2 are the sample sizes for domestic and international stocks.

Using the given data, we have:

x1 = 0.968, x2 = 0.864

s1 = 0.077, s2 = 0.117

n1 = n2 = 15

t = (0.968 - 0.864) / sqrt((0.077^2/15) + (0.117^2/15))

t = 1.771

Step 3: Determine the critical value:

df = (s1^2/n1 + s2^2/n2)^2 / (s1^4/(n1^2 df1) + s2^4/(n2^2 df2))

where df1 = n1 - 1 and df2 = n2 - 1.

Using the given data, we have:

df1 = 14, df2 = 14

df = (0.077^2/15 + 0.117^2/15)^2 / (0.077^4/(15^214) + 0.117^4/(15^214))

df = 24.102

Using a t-distribution table or calculator with 24 degrees of freedom and a significance level of 0.05, we find the critical value to be ±2.064.

Step 4: Make a decision and interpret the results:

Since the calculated t-value (1.771) is less than the critical value (±2.064), we fail to reject the null hypothesis. Therefore, we cannot conclude that there is a significant difference in the mean rate of return between domestic and international stocks at the 0.05 level of significance.

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Answer:

Your potential zeros are ± 1/2, ± 3/2, ± 1, and ± 2.

Answer: 42

Step-by-step explanation: This is just subtraction. You can do it one of two ways. Way one:

\(68\frac{1}{2} -26\frac{1}{2} =42\)

Way two:

\(68.5 - 26.5 = 42\)

Answer:

The baker bought 8 pounds of apples and 4 pounds of bananas.

Step-by-step explanation:

a+b=12.

0.75a+1.05b=10.20

First, multiply 2 my 10.

75a+105b=1020.

Then multiply 1 by 75.

75a+75b=900.

Then subtract.

75a+105b=1020

75a+75b=900.

75a-75a+105b-75b=1020-900

30b=120

b=4

Substitute into (1)

a+4=12

a=8.

Hope this helps :)

Answer:

e

Step-by-step explanation:

Answer:

Domain: (-∞, -5) (-1, ∞)

Step-by-step explanation:

Note:

For f(x) > 0: See the points of x for which the graph of f(x) lies above the x-axis.

For f(x) < 0: See the points of x for which the graph of f(x) lies below the x-axis.

We need to find the domain of f(x) for which f(x) < 0

From the graph, we can tell:

f(x) < 0 on (-∞, -5) ∪ (-1, ∞)

Therefore: The domain on which the given graph f(x) is negative, is (-∞, -5) ∪ (-1, ∞)

Call the number of children

c

and adults

a

you have:

c

+

a

=

481

and

1.25

c

+

2.25

a

=

865.25

Try to solve this system to find

c

and

a

.

Answer:

B

Step-by-step explanation:

Put them in there calculator

The equation of the tangent line to the function \(f(x) = -2x^3 - 4x^2 - 3x + 2\) at the point where x = -1 is y = -x + 6. The slope of the tangent line is -1, and the point of tangency is (-1, 7).

To find the equation of the tangent line to the function\(f(x) = -2x^3 - 4x^2 - 3x + 2\) at the point where x = -1, we need to determine both the slope of the tangent line and the point of tangency.

First, we find the derivative of the function f(x) to obtain the slope of the tangent line. The derivative of \(-2x^3 - 4x^2 - 3x + 2 is f'(x) = -6x^2 - 8x - 3\).

Next, we substitute x = -1 into the derivative to find the slope of the tangent line at x = -1: \(f'(-1) = -6(-1)^2 - 8(-1) - 3 = -6 + 8 - 3 = -1\).

Now, we have the slope of the tangent line, which is -1. To find the point of tangency, we substitute x = -1 into the original function f(x): \(f(-1) = -2(-1)^3 - 4(-1)^2 - 3(-1) + 2 = -2 + 4 + 3 + 2 = 7\).

Therefore, the point of tangency is (-1, 7), and the equation of the tangent line can be written in a point-slope form as y - 7 = -1(x - (-1)) or y - 7 = -1(x + 1).

In slope-intercept form, the equation simplifies to y = -x + 6.

Therefore, the equation of the tangent line to the function \(f(x) = -2x^3 - 4x^2 - 3x + 2\) at the point where x = -1 is y = -x + 6. The slope of the tangent line is -1, and the point of tangency is (-1, 7).

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Answer:

C

Step-by-step explanation:

Here in this question , we are interested in calculating the total distance covered by the train in the 10 minutes that it ran.

From the first part of the question, we already know the distances in the first 5 minutes.

Now, to calculate the total distance in the second 5 minutes, we use the distance formula since we have the average speed and the time;

Mathematically; Total distance = average speed * time

From the question, average speed is 33km/h, while time is 5 minutes. To achieve a consistent unit, we convert 5 minutes to hours.

That would be 5/60 = 1/12 hours

So the total distance in the second 5 minutes is;

33 * 1/12 = 2.75 km

Now, to calculate the total distance traveled, let’s add up the distances in the first 5 minutes and convert to kilometers;

That would be;

68 + 127 + 208 + 312 + 535 = 1,250 m

Let’s convert this to km.

We simply divide by 1000 = 1250/1000 = 1.25 km

The total distance is thus ;

1.25 + 2.75 = 4 km

During  from 1980 to 1990 ten-year period did the average age increase the most

Age is the duration of something's existence or being alive.

East Asian age calculation, a method of calculating age in Asia that begins at 1

Getting older, also referred to as aging,

Senescence, the age-related progressive decline in biological function

human advancement (biology)

Periodization, the division of history into clearly delineated chronological periods with names,

The stages of human existence on Earth as described by Greek mythology and its later Roman interpretation are known as the "Ages of Man."

Age before time

the given name age

Aage is the pen name of Italian screenwriter Agenore Incrocci.

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answer: 56 tama po yan sinolve ko na yan

Answer: B) 76.86

Step-by-step explanation:

Follow the steps others took to get D, then divide by 12 to get 76.86

Hope it helps <3

The height of the arch at a distance of 1.5 meters from the center is approximately D. 1.73 meters

The shape of a semi-elliptical arch can be described by the equation:

y = c * sqrt(1 - (x/a)^2)

where "a" is half the span of the arch, "c" is the central height of the arch, and (x,y) are the coordinates of a point on the arch, measured relative to the center of the arch.

In this case, we have a span of 6 meters, so a = 3 meters. The central height of the arch is 2 meters, so c = 2 meters. We want to find the height of the arch at a distance of 1.5 meters from the center, so x = 1.5 meters.

Substituting these values into the equation, we get:

y = 2 * sqrt(1 - (1.5/3)^2)

y = 2 * sqrt(1 - 0.25)

y = 2 * sqrt(0.75)

y = 2 * 0.866

y = 1.732

Therefore, the height of the arch at a distance of 1.5 meters from the center is approximately 1.73 meters. Answer D

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Your question is incomplete, but probably the complete question is :

A semi-elliptical arch in a stone bridge has a span of 6 meters and a central height of 2 meters. Find the height of the arch at a distance of 1.5 m from the center of the arch.

A.   1.41 m C.   1.56 m

B.   1.63 m D.   1.73 m

Answer:

degrees and the measure of angle 5 is -------- degrees. The measure of angl

Step-by-step explanation:

\(5+2\sqrt{5} , 5-2\sqrt{5}\)    Answer:   5±2\(\sqrt{5}\)

Step-by-step explanation:

x2 -10x=5=0

x2-10x+25=-5+25

(x-5)(x-5)=20

\((x-5)^{2} =\sqrt{20}\)

\(\sqrt{x-5}=\sqrt{20}\)

x-5=±\(\sqrt{20\)

x=5±\(\sqrt{5*4\)

x=5±2\(\sqrt{5}\)

Answer:

9 1/10th m/s2 :)

Step-by-step explanation:

The reason it is 1/10 is because the Number is 81 not 80, therefore 1/10 because there it is 1 left in 80 making it a fraction not a whole :) i hope this helps sorry if the explanation is too complicated...

Answer:

see explanation

Step-by-step explanation:

The sum of the angles around D = 360° , then

x = 360 - (114 + 90) ← equation to find x

  = 360 - 156

  = 204

Using the given information, the value of x is 2

From the question, we are to determine the value of x

From the given information,

The isosceles triangle ABC has its vertex at B

If the vertex is at B, then we can conclude that

AB = BC (Legs of an isosceles triangle are equal a)

Also, from the given information,

AB = 6×+3

BC = 8x-1

Thus,

6x + 3 = 8x - 1

Collect like terms

3 + 1 = 8x - 6x

4 = 2x

2x = 4

∴ x = 4/2

x = 2

Hence, the value of x is 2

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Answer:

Step-by-step explanation:

i think 45 because a square could be broken up into 4s

Answer:

\(90^{\circ}\)

Step-by-step explanation:

Take any square and try rotating it.

To solve the given problems related to total federal receipts, we first find the growth ratio (k) using the base year and the value of the exponential function. Then, using the growth ratio, we estimate the total federal receipts in 2015 and determine the year when the total federal receipts reach $313 trillion.

(a) To find the growth ratio (k), we need to use the given exponential function f(t) = b. Using the base year, we have f(1) = 0. Therefore, substituting the values, we get b = k^4. Solving for k, we find k = 0.

(b) To estimate the total federal receipts in 2015, we use the growth ratio from part (a). Since k = 0, there is no growth, and the total federal receipts in 2015 would be the same as in the base year, which is $0.

(c) To determine the year when the total federal receipts reach $313 trillion, we use the growth ratio obtained in part (a). Since k = 0, there is no growth, and the total federal receipts will never reach $313 trillion.

In summary, according to the given information, the growth ratio is 0, resulting in no change in total federal receipts. Therefore, the total federal receipts in 2015 would be $0, and they will never reach $313 trillion as there is no growth.

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Answer:

When you raise a power to another power, you multiply the exponents. Therefore, to simplify (3x²y²)³, you need to multiply the exponent 3 by each of the exponents in the parentheses:

(3x²y²)³ = 3³ x (x²)³ x (y²)³

= 27x^6y^6

So, the expression that is equivalent to (3x²y²)³ is 27x^6y^6, which is option C.

A cone-shaped paper drinking cup is to be made to hold 36 cm^3 of water. In order to make the paper cup with the least amount of paper, we need to minimize the surface area of the cone.

We want to minimize the surface area of the cone, which is given by:S = πr(r + s)where s is the slant height of the cone. We can eliminate s by using the Pythagorean theorem: s^2 = r^2 + h^2hence: s = sqrt(r^2 + h^2)

Now, we can substitute this into the surface area formula: S = πr(r + sqrt(r^2 + h^2)) = πr^2 + πr(sqrt(r^2 + h^2))

To minimize the surface area, we need to find the values of r and h that satisfy the volume equation and minimize the surface area equation. We can do this by using the method of Lagrange multipliers. The Lagrangian function is: L = πr^2 + πr(sqrt(r^2 + h^2)) + λ[(1/3)πr^2h - 36] Taking partial derivatives with respect to r, h, and λ and setting them equal to zero gives: 2πr + (πh r)/(sqrt(r^2 + h^2)) + (2/3)πλr^2 = 0πr/(sqrt(r^2 + h^2)) + (1/3)πλr^2 = 0(1/3)πr^2h - 36 = 0 Solving this system of equations gives:r = 1.85 cm h = 4.10 cmλ = 0.57 cm^-1

Therefore, the radius of the paper cup that uses the smallest amount of paper is 1.85 cm. The height of the paper cup that uses the smallest amount of paper is given as 4.10 cm. The radius of the paper cup that uses the smallest amount of paper is found to be 1.85 cm.

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Answer:

A - Sales associate

B - Summer Camp Counselor

Step-by-step explanation:

First, lets look at how much Joseph would averagely earn from each job.

Cashier in bookstore: in 6 weeks he will earn 900

Summer camp counselor: in 4 weeks 700

Sales associate: in 4 weeks he will earn 850

Overall, becoming a Sales associate will allow Joseph to earn his $850 quicker.

B - the Summer Camp Counselor job will not allow Joseph to make $850 because Summer Camp only lasts 4 weeks.