In the center of a growing city is an old church and a high-rise office building separated by a plaza. Two surveyors are collaborating on the job of determining how high the tip of the church spire is above the plaza. Each surveyor has a theodolite mounted on a tripod. One surveyor is in the entrance way of the high-rise. The top of his tripod is 165cm above plaza level. The second surveyor is directly above the first, and (amazingly) the top of her tripod is exactly 100m above the top of her colleague's tripod. The first surveyor measures the angle of elevation of the tip of the spire as 50∘. The second surveyor measures the angle of depression of the tip of the spire as 30∘. (The diagram on the right is not drawn to scale. Points A and F are at plaza level. You'll have to supply all the necessary measurements on the diagram for yourself.)

Correct to 2 decimal places, how high is the tip of the spire above the plaza?
m

Answers

Answer 1

Answer:

69.01

Step-by-step explanation:

Here I do emf too and i found the answer on another brainly post so check that out for the explanation


Related Questions

Suppose each block is 300 ft long. Suppose I could fly and walk through people’s houses and yards so that I could travel a straight line from my house to the library. What distance would I travel?

Answers

Answer:

1615.55 ft

Step-by-step explanation:

The coordinates for house (300,300)

Library coordinate =(1800, 900)

Distance between two points :

D = sqrt[(x2 - x1)² + (y2 - y1)²

D = sqrt[(1800 - 300)² + (900 - 300)²

D = sqrt[(2250000 + 360000)]

D = sqrt[(2610000)]

D = 1615.5494

D = 1615.55 ft

Hal earns $5 a week doing chores for his parents. He also earns $10 a week for each dog, d, he walks
Write an equation to find m, the total amount of money Hal earns in one week. Which variable in the equation is the dependent variable and which variable is the independent variable? Tell how you know

Answers

Answer:

Step-by-step ex

PLEASE HELP ILL MARK BRAINIEST
Examine the work shown. Explain the error and find the correct result.

2(4 – 16) – (–30)
2(–12) – (–30)
24 – (–30)
54

Answers

Answer:

the answers supposed to be 6

2*(-12) would be -24 that's what screwed up the equation

Step-by-step explanation:

Answer:

The error is in the middle: 2(-12) = -24 not 24

Step-by-step explanation:

Riley ordered a snow cone with 4 flavors.
Caleb ordered him with 2 flavors.
How many fewer flavors did Caleb order?

Answers

riley has 4 flavors
caleb had 2 flavors
4-2 equals 2
the answer to ur question is 2. caleb ordered 2 fewer flavors then riley

The areas of the squares adjacent to two sides of a right triangle are shown below.
? units?
35 units
50 units
What is the area of the square adjacent to the third side of the triangle?

Answers

Answer:

85

Step-by-step explanation:

All you do is add 35 units and 50 units together.

Area of the square adjacent to the third side of the triangle is 85 units square

What is Pythagoras theorem?

Pythagoras theorem states that a right-angled triangle, the square of one side is equal to the sum of the squares of the other two sides.

Given that areas of the squares adjacent to two sides of a right triangle are :

35 sq units

50 sq units

To determine the area of the square adjacent to the third side of the triangle

According to Pythagoras theorem,

Hypotenuse² = Base² + Perpendicular²

As figure is missing  assuming given sides are perpendicular sides

Then Area of the square adjacent to the third side of the triangle = 35 + 50

= 85 units square

Now, assuming 50 sq unit is an area on hypotenuse

Then Area of the square adjacent to the third side of the triangle  = 35 - 50

= 15 units square

Learn more about Pythagoras theorem here:

brainly.com/question/343682

#SPJ2

Can someone please help me on this question and show the work if you can?

Answers

Answer:

it is a 60 30 90 triangle so basically 2y is = x

21² + y² = x²

441 + y² = x²

y = x/2 (2y = x)

441 + x²/4 = x²

4x² = 1764 + x²

3x² = 1764

x = exact is 24.248711306 simplied square root would just be 14√3

2y = 14√3

y = 7√3

exact wouldd be 12.124355653

1. What type of number is 8i?
imaginary
real
complex

Answers

Answer:

8i is an imaginary number.

Work out the perimeter of the shaded shape
3cm
4cm
9cm
6cm
The diagram is not drawn to scale.
__cm​

Answers

Answer:

32cm

Step-by-step explanation:

Perimeter of the shaded shape is the sum of all the sides

To unknown side = 4cm + 6cm = 10cm

Perimeter of the figure = 3cm + 4cm + 6cm + 9cm + 10cm

Perimeter of the figure = 32cm

Hence the Perimeter of the figure is 32cm

4cm

9cm

6cm

The diagram is not drawn to scale.

__cm​

Help someone please? And makes sure the answer is right please and thank you :)

Answers

Answer:

x=7

Step-by-step explanation:

In this question, since  the horizontal lines are parallel lines, these two angles are congruent to each other.

So we have: 105=16x-7

Equation: 105=16x-7

Add 7 to both sides: 112=16x

Divide by 16 on both sides: x=7

Let me know if this helps!

Suppose you visit a restaurant with a salad bar containing the following choices: 10
dressings, 15 vegetables, 6 cheese toppings and 4 different crouton toppings. What is
the total number of possible salads you could create?
35
3600
150
900

Answers

Answer:

3600

Step-by-step explanation:

multiply all of the choices

10x15x6x4

The total number of possible salads you could create is 3600. so the correct option is B.

What is the fundamental principle of multiplication?

If an event can occur in m different ways and if following it, a second event can occur in n different ways, then the two events in succession can occur in m × n different ways.

WE have been given the following choices: 10 dressings, 15 vegetables, 6 cheese toppings and 4 different crouton toppings.

Therefore, the total number of possible salads you could create;

Then multiply all of the choices

10 x 15 x 6 x 4

= 3600

Hence, The total number of possible salads you could create is 3600. so the correct option is B.

Learn more about multiplications, please visit the link given below;

https://brainly.com/question/14059007

#SPJ2

Use the exchange rate £1 = €1.13 to convert €339 into £.

Answers

Answer:

£383.07

Step-by-step explanation:

339 X 0.13=44.07

44.07+339=£383.07

6.7.35
LMNP is a rectangle. Find the value of x and the length of each diagonal
LN=5x-3 and MP=2x +8
(Simplify your answer.)

Answers

Answer:

Step-by-step explanation:

dang this one is hard lol

Answer:

Not for sure

Step-by-step explanation:

look at the graph of a line and write its equation​

Answers

Answer:

y = 5x + 0.25

Step-by-step explanation:

M is the slope which is 5 units y per 1 x unit. B is the y-intercept which seems to be 0.25.

Value of x is greater than or equal to 14​

Answers

Answer:

x, greater than sign with a line under it, 14

Step-by-step explanation:

Lola already has 6 pennies, and she plans to save more. In her first week

of saving pennies, she will save twice the number of pennies that she

already has. Each week after, she will save twice the number of pennies

as the previous week.

Which equation can be used to determine the number of pennies, P, Lola

will save during week w of saving pennies?

Answers

Answer: [tex]P=6(2)^{w-1}[/tex]

Step-by-step explanation:

Here, the money saved each week follows geometric progression with a common ratio r= 2 and first term a= 6.

In geometric progression, nth term  = [tex]ar^{n-1}[/tex]

Substitute  r= 2 , a= 6 and n=w, we get

wth term = [tex]6(2)^{w-1}[/tex]

The equation can be used to determine the number of pennies, P, Lola will save during week w of saving pennies:

[tex]P=6(2)^{w-1}[/tex]

a) Which of the four curves, A, B, C or D,
is a sketch of the curve with equation y = 2* ?
A
b) Give the coordinates of any points of
intersection of the curve of y = 2with
the axes.
If there are no points of intersection
write, 'no points'.
(1)

Answers

Answer:

Step-by-step explanation:

Name two pairs of alternate exterior angles.

Answers

Answer:

Possible Alternate Exterior Angles:

5 and 4

1 and 8

9 and 16

13 and 12

Answer:

B.

Step-by-step explanation:

Question 4 (1 point)

The organizers of a concert are preparing for the arrival of 50,000 people in a field. Each person is alloted 5 square ft of space, so the

organizers rope off a circular area big enough to account for 5 square feet per person. Find the radius of this region, rounding to the nearest

foot.

Answers

Answer:

Radius of park r = 282.04 ft (Approx)

Step-by-step explanation:

Given:

Number of people = 50,000

Each person needs area = 5 ft²

Park's is in shape of circle

Find:

Radius of park r

Computation:

Total area required = 50,000 x 5

Total area required = 250,000 ft²

Area of circular park = Total area required

πr² = 250,000

(22/7)r² = 250,000

r² = 79545.4545

r = 282.04 ft

Radius of park r = 282.04 ft (Approx)

Please Help me? Will mark brainliest.
Please do not post any random answers, they will be immediately reported [by immediately I mean when i get back on. I am going to sleep now ;-;]

pH is a measurement of hydronium ions and can be modeled by the function f(x) = −log10x. The variable x represents the amount of hydronium ions, and f(x) gives the pH level.

Different liquids have ideal pH values that are different. Water at 25 degrees Celsius has a pH of 7. Anything that has a pH less than 7 is called acidic, and a pH above 7 is basic, or alkaline. Seawater has a pH just more than 8, whereas lemonade has a pH of approximately 3.

Create a graph of the pH function either by hand or using technology. Locate on your graph where the pH value is 0 and where it is 1. You may need to zoom in on your graph.
Use your graph to find the ideal pH level if the amount of hydronium ions is raised to 0.50.
The pool company developed new chemicals that transform the pH scale. Using the pH function f(x) = −log10x as the parent function, explain which transformation results in a y-intercept and why. You may graph by hand or using technology. Be sure to label each transformation on the graph.
f(x) + 1
f(x + 1)
[If you could, it's be greatly appreciated if you'd use desmos to graph as that will be the site I am using. It's fine if not, thanks]

Answers

Answer:

5.623x10-11 mol/l

Step-by-step explanation:

pls trust on this one

Answer:

1.

pH is 0 = (1,0)

pH is 1 = (0.1,1)

2.

(0.5,0.301)

3.

f(x+1) because of the horizontal transformation to the left so it has a y-intercept of (0,0).

Step-by-step explanation:

Graphs included

What is 3.50 if it rose by 4000%

Answers

Multiply by 4000%
3.5 x 4000% = 140

what is the gcf of 40 and 10

Answers

Answer:

the gcf is 10

Step-by-step explanation:

factors of 10- 1,2,5,10

factors of 40-1,2,4,8,10,20,40

the biggest factor they both have is 10

hope this helps :>

At a sale, shirts were sold for $16 each. This price was 80% of their original price. What was the original price?

Answers

Answer:

$20 was the original price. 16÷20= .8=80%

Answer:

The original price is 100%. and 80%

Step-by-step explanation:

The original price is 100%. and 80%=$15. ⇒1%=$1580=$0.1875. ⇒100%=$0.1875×100=$18.75.

Department stores customer parking lot has four rows with an equal number of parking spots in each row. The loud also has 15 parking spots for store employees FC cars can be parked in each of the four main roles of the parking lot what is the expression for the maximum number of cars that can be parked in the parking lot.

Answers

Answer:

4c + 15

Step-by-step explanation:

THIS IS THE COMPLETE QUESTION BELOW;

A department store's customer parking lot has 4 rows with an equal number of parking spots in each row. The lot also has 15 parking spots for store employees. If c cars can be parked in each of the 4 main rows of the parking lot, what is the expression for the maximum number of cars that can be parked in the parking lot?

15c − 4

c(15 − 4)

4c + 15

4(c + 15)

✓We were told that the customer stores parking has Total number of 4 rows,

✓ for " c" cars to be parked in the 4 main rows i.e in each of them, we can calculate the overall numbers of car parked in the rolls as ( 4 × c)= 4c

✓ we were told that there are 15 parking spots available to employees in the store

✓ maximum number of cars that can fit into the parking lot will be ( 15 + 4c)

= 4c + 15

Rearrange this formula to make x the subject.
y = 3x2 - 2

Answers

Answer:

The subject 'x' in terms of 'y'

[tex]x = \sqrt{\frac{y+2}{3} }[/tex]

Step-by-step explanation:

Explanation:-

Given subject in terms of 'x'

 y = 3 x² - 2

Adding '2' on both sides, we get

y + 2 = 3 x² - 2 +2

y+2 =  3 x²

Dividing '3' on both sides, we get

[tex]x^{2} = \frac{y+2}{3}[/tex]

[tex]x = \sqrt{\frac{y+2}{3} }[/tex]

True or false
The graph of a linear equation is always horizontal line ?

Answers

Answer:

truef8y8y8gufu0fy9f8tft8

Answer:

true

Step-by-step explanation:

totoo po yn hindi ko po layo niloloko

A cube with a volume of 64 cubic meters is scaled by a factor of 5. What is the volume of the modified cube in cubic meters? (Note: do not include the units in your answer.)

Answers

Answer:

8000 for plato users

Step-by-step explanation:

Answer:

8000

Step-by-step explanation:

Which is the exponential form of the expanded form shown? (Two-fifths) (two-fifths) (two-fifths) (two-fifths)

Answers

(Two fifths) to the power of four
Also shown as (2/5)^4
Since two fifths is being multiplied by itself 4 times, it is raised to the fourth power

Homework #74
W
2. A tour group has $784 to spend on
tickets. If each ticket costs $7, how many
tickets will the group be able to buy?

Answers

784 divide by 7 is 112 so answer 112

A number 1 is no less than -3.

Answers

Answer:

no

Step-by-step explanation:

because 1 can equal anything

Answer:

1 equals everything

Solve the proportion Round as necessary to the nearest tenth

Answers

Answer:

z=[tex]\frac{9}{2}[/tex]

Other posible answers:

z=4.5

or

z=[tex]4\frac{1}{2}[/tex]