An astronomer is 450 light years (1.y.) from star A and 400 1.y. from star B, as shown. Star A is 90 1.y.from star B.B400 l.y.90 l.y.АAstronomer450 l.y.If the astronomer's telescope is currently pointed at star A, how many degrees must she rotate hertelescope to see star B?Do not round during your calculations. Round your final answer to the nearest degree.

Answer:

420 m2

Step-by-step explanation:

Hope this helps

The surface area of the prism will be equal to 366 square meters.

The space occupied by any two-dimensional figure in a plane is called the area. The area of the outer surface of any object is called the surface area.

Given that:-

The surface area of the prism will be calculated as:-

Surface area = Sum of the area of all sides

There are three rectangle faces and two triangular faces in the triangular prism.

Surface area = 3 ( area of rectangle) + 2 (area of triangle)

Suraface area= 3 ( 10 x 9 ) + 2 [( 1/2)(16 x 6)]

Surface area = 270 + 96 = 366 square meter.

Therefore the surface area of the prism will be equal to 366 square meters.

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It would take 370 days to build the wall with the given conditions.

If 60 men can build a wall in 40 days, then the total man-days required to build the wall is:

60 men x 40 days = 2400 man-days

However, 55 men quit every ten days, which means that after 10 days, there are only 60 - 55 = 5 men left to work on the wall. After 20 days, there are only 5 - 55 = -50 men left, which means that the remaining 5 men cannot work any faster than they were already working. Therefore, we can assume that the remaining 5 men complete the wall on their own.

The number of man-days required for the first 10 days is:

60 men x 10 days = 600 man-days

The number of man-days required for the second 10 days is:

5 men x 10 days = 50 man-days

The total number of man-days required for the first 20 days is:

600 man-days + 50 man-days = 650 man-days

The remaining work can be completed by the 5 men in:

2400 man-days - 650 man-days = 1750 man-days

Therefore, the total time needed to build the wall is:

20 days + 1750 man-days / 5 men = 20 + 350 days = 370 days

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There are 19 small candles and 8 large candles of each size Ngyun sells.

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

He sells small candles for $5 each and large candles for $8 each.

And, He sells a total of 27 candles and earns $159.

Now,

Let number of small candles = x

And, Number of large candles = y

So, We get;

The system of equation as,

Here, He sells small candles for $5 each and large candles for $8 each for $159. So,

⇒ 5x + 8y = 159    ..(i)

And,  He sells a total of 27 candles.

So, We get;

⇒ x +  y = 27    ..(ii)

Solve both equation, we get;

Multiply by 5 in (ii), we get;

⇒ 5x + 5y = 135

Subtract from (i), we get;

⇒ 3y = 24

⇒ y = 8

And, x +  y = 27

⇒ x + 8 = 27

⇒ x = 27 - 8

⇒ x = 19

Thus, There are 19 small candles and 8 large candles.

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The question is incomplete. Here is the complete question.

The Maryland State Department of Education reports that 12% of the high school students in that state attend private high schools. The University of Maryland wonders if the percentage is the same in their applicant pool. Admissions officers plan to check a random sample of the over 10,000 application on file to estimate the percentage of students applying for admission who attend private schools. They select a random sample of 450 applications, and find that 46 of those students attend private schools. Create and interpret a 95% confidence interval.

Answer and Step-by-step explanation: Th proportion of students that attend private schools in the sample is

\(p=\frac{46}{450}\)

p = 0.102

At 95% confidence, z-score is 1.96.

Standard deviation for sample proportion is calculated as

\(\sigma = \sqrt{\frac{p(1-p)}{n} }\)

For this sample, it will be

\(\sigma = \sqrt{\frac{0.10(1-0.1)}{450} }\)

\(\sigma=\sqrt{0.0002}\)

\(\sigma=0.01414\)

Interval is calculated as

p ± zσ

Then

0.102 ± 1.96(0.01414)

0.102 ± 0.028

Interval is 0.074 < p < 0.13

What confidence interval means is that with a certainty of 95%, we are confident that  the true population proportion of students who attend private schools are between 0.074 and 0.13.

Answer:

$19.56

Step-by-step explanation:

$4.89 per pound times the number of pounds to be purchased (4).

so 4(4.89)=19.56

The Volume of the box is 12 cubic unit.

We have,

Height = 1 unit

Width = 2 unit

Length = 6 unit

So, Volume of box

= l w h

= 1 x 2 x 6

= 12 cubic unit

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Answer:

22.85 west

Step-by-step explanation:

Answer:

7.35 miles east.

Step-by-step explanation:

$29191 cours for dollars

Answer:

240 m³

Step-by-step explanation:

volume = length × width × depth

240 m³ = 20 m × 1 m × 12 m

Answer:

t = 1.195pounds.

Step-by-step explanation:

The cost per pound of Turkey and Ham are: 1.195pounds and 1.733pounds respectively.

By observing the question, we must notice this is a word problem and can be written mathematically thus;

For Casey:

15.4t + 11.6h = 38.51

For Jane:

10.2t + 7.3h = 24.84

Therefore, to find the cost per pound of Turkey and Ham, the pair of equations need to be solved simultaneously.

Therefore, we can make t the subject of the formula in equation (2) as follows;

t = (24.84 - 7.3h)/10.2

Therefore, we can substitute the value of t into equation (1) to get;

15.4{(24.84 - 7.3h)/10.2} + 11.6h = 38.51

37.51 - 11.023h + 11.6h = 38.51

0.577h = 1

h = 1.733pounds

Therefore, by substituting the value of h into equation 1, we get the value of t to be;

t = 1.195pounds.

The appropriate hypotheses for this test are: H0: There is no difference in the distribution of responses. Ha: There is a difference in the distribution of responses.

The chosen hypotheses are based on the objective of the investigation, which is to determine if there is convincing evidence that the distribution of responses about eating the potato salad differs between employees who are sick and those who are not sick.

The null hypothesis (H0) assumes that there is no difference in the distribution of responses about eating the potato salad between the sick and non-sick employees. This means that the proportion of employees who ate the potato salad would be the same in both groups, and any observed difference in the distribution of responses is due to random chance or factors unrelated to being sick or not sick.

On the other hand, the alternative hypothesis (Ha) proposes that there is a difference in the distribution of responses about eating the potato salad between the sick and non-sick employees. This suggests that the proportion of employees who ate the potato salad would be significantly different in the two groups, indicating a possible association between consuming the potato salad and getting sick.

By formulating these hypotheses, the investigation aims to evaluate whether the data provides convincing evidence to reject the null hypothesis in favor of the alternative hypothesis, indicating a meaningful relationship between eating the potato salad and falling sick.

Therefore, the correct answer is:

H0: There is no difference in the distribution of responses about eating the potato salad among those who are and are not sick.

Ha: There is a difference in the distribution of responses about eating the potato salad among those who are and are not sick.

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Answer:

The first one

Step-by-step explanation:

The first quotient (7) is different from the other three (0.7)

Hope this helps

Answer:

I think its 3 hours also please change ur pfp it's cringe

Answer:

its 2 hours

Step-by-step explanation:

first, you say, well it's 7 days in a week and it says they practice 25 minutes  every night. So there for, you multiply, 25 times 7. and that gets you 175, now, it says how many hours does a band member practice weekly. and 60 minutes is in an hour so you have to divide, 60 divided by 175. which gives you 2 with the remainder of 55. But see don't forget it said about which means estimate or round up. so 2 with a remainder of 55, (if it's seven or up `round it up). meaning to the next number. Hopefully, this helped.

The equation with an infinite number of solutions is 12x-x+8+3x=14x+8.

An equation is a formula in mathematics that expresses the equality of two expressions by connecting them with the equals sign =. In its most basic form, an equation is a mathematical statement that shows that two mathematical expressions are equal. 3x + 5 = 14, for example, is an equation in which 3x + 5 and 14 are two expressions separated by a 'equal' sign. A mathematical equation that depicts the relationship between two expressions on opposite sides of the sign. It mostly consists of one variable and one equal to symbol. 2x - 4 = 2 is an example.

Here,

12x-x+8+3x=14x+8

The equation so that it has infinitely many solution is 12x-x+8+3x=14x+8.

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Answer:

Step-by-step explanation:

You want to show that the point (4, -4) is on the graph of x² +y² = 32, and you want the tangent and normal lines at that point.

The point is on the curve because when x = 4 and y = -4 the resulting statement is 16 +16 = 32, which is a true statement.

The tangent to a circle is most easily found by first considering the normal. The normal line will be the line through the point on the circle and the center of the circle. Here, the center is (0, 0). The slope of the normal line is ...

  m = y/x = -4/4 = -1

The tangent line's slope is the opposite reciprocal of this:

  m = -1/(-1) = 1

The point-slope form of the equation for the tangent line is ...

  y -k = m(x -h) . . . . . equation for line with slope m through point (h, k)

  y -(-4) = 1(x -4) . . . . . equation for line with slope 1 through point (4, -4)

  x -y = 8 . . . . . . . . . . add 4-y to put in standard form

The equation of the tangent line is x - y = 8.

In the section above, we found the slope of the normal line is -1. We also noted that the normal line goes through the point (0, 0). Then the point-slope form of the normal line is ...

  y -0 = -1(x -0)

  y = -x

The equation of the normal line is y = -x.

__

Additional comment

The normal line can also be written as x + y = 0.

The tangent line can also be written as y = x -8.

<95141404393>

All this leads to the conclusion that the scale of dilation is 3 but the center of dilation about which the dilation is made is the point C.  

Center of dilation

This is a point in the coordinate plane about which all the points are expanded or contracted.

Scaling is the process of resizing or transforming an object. This is a transform that makes an object smaller or larger using a given scaling factor. The new shape obtained after extension is called an image, and the original image is called a prototype. There are two types of extensions.

Extraction - When an object increases in size.

Contraction- When an object is scaled down.

Extended geometry has an important concept called "extended centers". Expansion transforms the size of a shape so it can grow or shrink. Scaling is done at a point called the Expansion Center. This is the expansion center where the object/shape expands or contracts.

How to we can get the Center of Dilation:

We can see that CK is one unit and CC' is 3 units also,

CB is 2 units but CA is 6 units

CD is 2 units but CA' is 6 units

All this leads to the conclusion that the scale of dilation is 3 but the center of dilation about which the dilation is made is the point C.  

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Answer:

The answer is 8

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

2/5x-8/5y+x+½y

2/5(1)-8/5(-6)+1+½(-6)

2/5+48/5+1-3

10-2

8

I believe the expression you provided is:

(log(x) + 4x^3) / x

To find the discontinuities of this expression, we need to identify any values of x that would cause the expression to be undefined. These values are called the discontinuities.

There are two types of discontinuities to look for:

Removable discontinuities: These occur when a function is undefined at a certain point but can be made continuous by redefining the function at that point.

Non-removable discontinuities: These occur when a function is undefined at a certain point and cannot be made continuous by redefining the function at that point.

To find the discontinuities of the given expression, we need to look for values of x that would make the denominator equal to zero, as this would result in a non-removable discontinuity.

So we solve the equation:

x = 0

This means that x cannot be equal to zero, as it would make the denominator zero and the expression undefined.

Therefore, the only discontinuity of the expression is at x = 0.

Note that there are no removable discontinuities in this expression, as the expression is continuous everywhere except at x = 0.

Answer:

The first bottle holds 25 3/5 ounces of water.

Step-by-step explanation:

16 x 8/5

= 16/1 x 8/5

= 128/5

= 25 3/5

Answer:

10 ounces

Step-by-step explanation:

16=8/5

z=1

16*1=16

8/5*z=8/5z

16=8/5z

16/1.6z=10

z=10

If the distances form a geometric sequence, the total distance Mr. Meyering jumps if he completes infinitely many jumps is equal to 40 inches.

In Mathematics, a geometric sequence can be defined as a series of real and natural numbers that are calculated by multiplying the next number by the same number (common ratio) each time.

Mathematically, the sum of an infinite geometric sequence can be calculated by using this mathematical expression:

S = a₁/(1 - r)

Where:

First of all, we would determine the common ratio between the distances he jumped as follows;

Common ratio, r = a₂/a₁

Common ratio, r = 10/20

Common ratio, r = 0.5.

For the total distance, we have;

S = a₁/(1 - r)

S = 20/(1 - 0.5)

S = 20/0.5

S = 40 inches.

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Answer:

C

Step-by-step explanation:

Part a: x intercepts are (4.414, 0) and (1.586,0) and y intercept = (0, 7).

Part b: From the graph, vertex = (3, -2).

In mathematics, a quadratic equation is a second-degree polynomial with the conventional form ax² + bx + c = 0, where a, b, and c are mathematical coefficients and a 0. Second degree refers to an equation where at least one term has been raised to a power of two. The value of the variable x in a quadratic equation is unknown, so we must discover the answer.

Given quadratic function for the macroeconomic variable

Q(x) = x² − 6x + 7.

Part a: x and y intercept:

x-intercept occurs when the function becomes zero.

Put Q(x) = 0

0 = x² − 6x + 7.

Find the factors:

x² − 6x + 7 = 0

a = 1 , b = -6 , c = 7 using the quadratic formula.

x = [-b ± √(b² - 4ac)]/ 2a

x = [6 ± √(36 - 4*1*7)]/ 2*1

x = 3 ± √2

Now,

x = 3 + √2

x = 4.414

and x = 3 - √2 = 1.586

Thus, x intercepts are (4.414, 0) and (1.586,0)

Y-intercept, when x = 0

Q(x) = 0² − 6(0) + 7.

Q(x) = 7

y intercept = (0, 7)

Part b: using the graphing tool, draw the graph of the given quadratic function.

Mark the points  (4.414, 0),  (1.586,0), and  (0, 7).

From the graph, vertex = (3, -2).

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Answer:

Step 1: Write your hypotheses and plan your research design

Step 2: Collect data from a sample

Step 3: Summarize your data with descriptive statistics

Step 4: Test hypotheses or make estimates with inferential statistics

Step 5: Interpret your results

Step-by-step explanation:

Answer: There are 38 dogs, i got this by guessing the number and plugging it in

Step-by-step explanation:

19 x 5 = 95

19 x 2 = 38

95 + 38 = 133

Answer:

The measure of the angles:

24°  and   66°

Step-by-step explanation:

Complementary angles sum 90°

then:

(3x + 3) + (10x-4) = 90

3x + 10x + 3 - 4 = 90

13x - 1 = 90

13x = 90+1

13x = 91

x = 91/13

x = 7°

then:

3x+3 = 3*7 + 3 = 21+3 = 24°

10x - 4 = 10*7  - 4 = 70 - 4 = 66°

Check:

66° + 24° = 90°

Step-by-step explanation:

Given the function

f(x, y) = 5 + x ln(xy − 9) at the point (5, 2)

For the function to be differentiable at the given point, the differential of the function with respect to x and y must be continuous at the point.

Fx is the differential of the function with respect to x.

Using product rule to get f(x):

fx = 0 + x(1/(xy-9)y) + ln(xy-9)

fx = xy(1/(xy-9)) + ln(xy-9)

Substitute point (5, 2) into fx

fx = 5(2)(1/5(2)-9) + ln(5(2)-9)

fx = 10(1/(10-9)) + ln(10-9)

fx = 10(1/1) + ln1

fx = 10 + 0

fx = 10

For fy:

fy = 0 + x²(1/(xy-9))+ 0

fy = x²(1/(xy-9))

Substitute point (5, 2) into fy

fy = 5²(1/(5(2)-9))

fy = 25(1/10-9)

fy = 25(1/1)

fy = 25

Next is to calculate f(5,2)

f(5,2) = 5 + 5 ln(2(5) − 9)

f(5,2) = 5 + 5 ln(10− 9)

f(5,2) = 5 + 5 ln1

f(5,2) = 5 + 5(0)

f(5,2) = 5

Since fx ≠ fy, hence the function is not differentiable at the given point

Step-by-step explanation:

I take gas consumption as example.

Consider the followings,

Let M be the gas meter reading per month

A be the fuel adjustment fee

B be monthly maintenance fee

Y be unit cost per Joule

Let X be monthly bill

( 1 meter reading unit = 48 unit of Joule )

Monthly bill payment :

X = Mx48xY + A + B

in function notation, the monthly bill is f(M, Y, A, C)

put -5 in 5 postion for the second and 5 for the first

Step-by-step explanation: