A flagpole casts a shadow that is 26 ft long. At the same time, a yardstick casts a shadow that is 4 ft long. How tall is the flagpole?

Answers

Answer 1
Answer:

Use a proportion:

Yardstick is 3 feet long(x)/(26) = (3)/(4) \nx=((26)(3))/(4)\nx=19.5 ft


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Suppose Y varies directly as X, and y = 9 when x = 3/2. Find y when x = 1.

Answers

Answer:  The required value of y is 6.

Step-by-step explanation: We are given that y varies directly as x and y = 9 when x=(3)/(2).

We are to find the value of y when x = 1.

According to the given information, we have

y\propto x\n\n\Rightarrow y=k* x~~~~~~~~~~~~~~~~~~~~~~~~~~~~~[\textup{where k is the constant of integration}]\n\n\Rightarrow y=kx~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)

When y = 9 and x=(3)/(2), we have from equation (i) that

9=k*(3)/(2)\n\n\n\Rightarrow k=(18)/(3)\n\n\Rightarrow k=6.

So, equation (i) becomes

y=6x.

Therefore, when x = 1, we get

y=6*1=6.

Thus, the required value of y is 6.

to vary directly is to be in proportion

y/x = y/x

9/(3/2) = y
9(2/3) = y
y = 6

An Internet company charges a one-time setup fee of $44.99 and a monthly fee of $29.99 for Internet service. The company is offering a 25% discount on the monthly fee for the first year. Part A Write an expression to determine the cost, after the discount and before tax, of m months of service during the first year.

Answers

12 months of service = $44.99 + 3/4 * 12 * $29.99

Total Cost: $314.90

Triangle M' is the image of triangle M under a dilation.What is the center of the dilation?
A
B
C
D

Answers

Since triangle M' is the image of triangle M under a dilation, the center of the dilation is: B. B.

What is dilation?

In Mathematics and Geometry, a dilation is a type of transformation that is used for altering the dimensions of a geometric figure, but not its shape.

Generally speaking, the coordinates of the pre-image can be dilated by using a scale factor that is centered at the point B by using this mathematical expression:

(x, y)  →  (k(x - a) + a, k(y - b) + b)

In conclusion, the center of the dilation would be at point B when the three vertex of both triangle M' and triangle M are connected.

Read more on dilation here: brainly.com/question/11812796

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Answer:

B

Step-by-step explanation:

trust me

What is the volume of the figure

Answers

3^(3)+3^(3) + 3^(3) => 

\n  \n 27+27+27 = \n  \n =\framebox[1.1\width]{     81     } \par \n  \n \framebox[1.1\width]{      Good Luck   } \par








3³ + 3³ + 3³ = 27+27+27 = 81 cm³

There were 1200 boys at a school assembly. The ratio of boys to girls at the assembly was 20:23. How many girls were at the assembly?

Answers

The required number of girls in the school assembly is 1380.

Given,
There were 1200 boys at a school assembly. The ratio of boys to girls at the assembly was 20:23. Number of girls in the assembly line is to be determined

What is the Ratio?

The ratio can be defined as the proportion of the fraction of one quantity towards others. e.g.- water in milk.
Representation of ratio of two values a and b, ratio = a:b.

Let the number of girls in the school assembly be x.
There were 1200 boys at a school assembly. The ratio of boys to girls at the assembly was 20:23. So the ratio can be written as,
1200 : x = 20 : 23
1200 / x = 20 / 23
x = 1200 * 23 / 20
x =  60 * 23
x = 1380
Here, the number of girls in the school assembly is 1380.

Thus the required number of girls in the school assembly is 1380.

Learn more about ratio here:

brainly.com/question/13419413

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I believe the answer is  1,600 girls

Which set of angles are vertical angles?A) 1 and 7
B) 1 and 4
C) 2 and 4
D) 3 and 5

Answers

b the the right answer hope this helps you :3