12. From the top A of a building 125m above a street, the angle of elevation of the top B of a second
building on the opposite side is 18'36'and the angle of depression of the base of the second building
from A is 39° 48
(a) Calculate the width of the street​

Answers

Answer 1

Answer: 150.02 m

Step-by-step explanation:

Given

The height of building A is 125 m

the angle of elevation to the top of building B is [tex]18^{\circ}36'[/tex]

and the angle of depression of the base of Building B is [tex]39^{\circ}48'[/tex]

Suppose the width of the street is x

from the figure, we can write

[tex]\Rightarrow \tan (39^{\circ}48')=\dfrac{125}{x}\\\\\Rightarrow \tan (39.8^{\circ})=\dfrac{125}{x}\\\\\Rightarrow x=\dfrac{125}{\tan 39.8^{\circ}}\\\\\Rightarrow x=150.02\ m[/tex]

Thus, the width of the street is [tex]150.02\ m[/tex]

12. From The Top A Of A Building 125m Above A Street, The Angle Of Elevation Of The Top B Of A Secondbuilding

Related Questions

1. Is the function below linear or non linear? y = -8X2 + 9??​

Answers

linear because it’s in y=mx+b form

Please help me with these questions. I’ve literally been asking for this same answer since 7:00 pm. It’s currently 9:35 am. Please just answer these questions, I’ve spent over 180 points, I was up until 5:00 am looking for answers and no one gave them to me. Please, just please, help me.

Answers

Answer:

x = -2 y = -7

x = -1 y = -4

x = 0 y = -1

x = 1 y = 2

x = 0 y = 5

Also, I am sorry that it took so long for someone to answer.

Hope that this helps!

Find the value of x in the triangle shown below.

HELP AS SOON AS POSSIBLE:)

Thx<3

Answers

I believe the interior Angles have to add up to 180 so subtract the other two angles
X= 93

Please help i'' give 20 points

Answers

Answer: Answer is C. but if you want to double check before giving this in pls use a greater than less than calculator.

Step-by-step explanation:

Please help me, math is so hard

Answers

Answer:

32 divided by 4 = 8,

8^2 + 8^2 = 128

128: 11^2 = 121 close enough, 11 is your answer

We are finding hypotenuse but first we find the length of all sides of the two squares to find the two sides of the triangle then we find hypotenuse.

Answer:

Step-by-step explanation:

OH you have to find what the lengths of the sides of the squares are, It would have been easier if they made the area 36 because that is a squared number and easy to find but because they didn't you just have to put 32 into a square root and the output would be 5.6.

why are we doing this? because 5.6*5.6=32, the area of the square. that means that 5.6 and 5.6 can be plugged into the A^2+B^2=C^2 equation 5.6^2+5.6^2=c^2 the missing side.

=984 should be the missing side but do the work yourself because that number that I came up with doesn't look right.

ILL BRAINLIEST YOU HELP ME PLEASE

Answers

Answer:

A = (0, -3)

B = (0, 0)

C = (-2, 0)

D = (-2, -3)

Step-by-step explanation:

The figure is being rotated 90° counterclockwise that's why it's now located in Q III. B remains the same since it's our turning point. Correct me if I'm wrong. I hope it helps.

WILL MARK BRAINLIEST HELP ASAP ASAP

Answers

Answer:

ASA

Step-by-step explanation:

you can see there is 1 marking of (A)ngle and 1 marking of (S)ide in the middle they share that angle and they don't mark it

at this point you are down to 2 options AAS ASA

and you just look at witch order makes more since and ASA does because there is a S in the "middle" of the angles.

Answer:

SAS  

hope u get this right

hope this helped

don't want mark brainliest just here to help

Step-by-step explanation:

Do question 9: State if the three sides lengths form a right triangle. (Example on top)

Answers

Answer:

No

Step-by-step explanation:

please someone help this is on aleks​

Answers

Answer:

second choice

Step-by-step explanation:

8. {MCC.7.G.3} Sphere, Cylinder or Cone? Which shape possesses a set of parallel
cross sections that are congruent circles? *
A.Sphere
B.Cylinder
C.Cone
Help !!!

Answers

Answer:

B. Cylinder

it possesses a set of parallel

Find the area of the thombus. ​

Answers

[tex]b=6\frac12\,in\,,\quad h=6\,in\\\\\\A=b\cdot h\\\\=6\frac12\cdot6= 6\cdot6+\frac12\cdot6 =36+3\\\\=39\ \text{in}^2[/tex]

Nuha is going through a revolving door that needs to rotate
16
0

160

160, degrees to allow her to pass through. The wind pushed the door around
4
0

40

40, degrees. Nuha needs to push it the rest of the way.

Answers

Answer:

The answer is A

Step-by-step explanation: BIG BRAIN

The equation that will tell us the measure of the additional angle, a, that Nuha needs to push the door before she can get out is D: 160 - 40 - a.

To determine the equation that will give us the measure of the additional angle, a, that Nuha needs to push the door before she can get out, we can break down the information provided:

1. The door needs to rotate 160° for Nuha to pass through.

2. The wind pushed the door 40°.

To find the additional angle that Nuha needs to push the door, we can subtract the angle already rotated (40°) and the angle she needs to pass through (160°) from the total rotation angle:

Total rotation angle = Angle already rotated + Angle Nuha needs to push + Additional angle Nuha needs to push

Based on this equation, we can eliminate options A, B, and C since they do not accurately represent the situation.

The correct equation is option D: 160 - 40 - a. This equation represents subtracting the angle already rotated (40°) and the angle Nuha needs to pass through (160°) from the total rotation angle, leaving the additional angle (a) that Nuha needs to push the door.

To learn more about the equation;

https://brainly.com/question/12788590

#SPJ4

The complete question:

Nuha is going through a revolving door that needs to rotate 160° to allow her to pass through. The wind pushed the door around 40°. Nuha needs to push it the rest of the way.

Which equation will tell us the measure of the additional angle, a, that Nuha needs to push the door before she can get out?

Choose 1 answer:

A: 160+40= a

B: 40 x 2 = a

C: 160 ÷ 40 = a

D: 160-40-a

8. In an isosceles triangle, does the median to the base bisect the vertex angle?
1. yes
2. no
3. cannot say

Answers

Answer:

1. yes

Step-by-step explanation:

If doesn't bisect then the triangle will not be isosceles... In isosceles two angles and sides are equal

In a middle school classroom there are 4 boys for every 6 girls. How many
boys would there be in a classroom with 30 student?

Answers

Answer:

12

Step-by-step explanation:

Answer:

12 boys

Step-by-step explanation:

4/(4+6) × 30

= 4/10 × 30

= 12

Find the value of x. If necessary, round your answer to the nearest tenth. O is the center of the circle. The figure is not drawn to scale.
a-5
b-12
c-15
d-9

Answers

A hehdhhsjshahahvsbd
The answers is 9 because I just finished doing this answer oml

Solve by substitution. Please show work!!!
x+4y=-3
x+7y=-12

Answers

[tex] \huge\mathcal\colorbox{red}{\color{pink}{ᶛɲƧཡэʀ}}[/tex]

x = 9

y = -3

Si un rombo tiene un lado con medida de 16 pulgadas. Cual es su perimetro . If a rhombus has a side measured 16 inches. What is its perimeter.

Answers

Answer:

64 inches or 64 pulgadas

Step-by-step explanation:

The formula for the perimeter of a rhombus is given as:

P = 4a

Where a = side length of the rhombus

From the above question, side length of the rhombus = 16 inches

Hence, Perimeter of the rhombus = 4 × 16 inches

= 64 inches

La fórmula para el perímetro de un rombo se da como:

P = 4a

Donde a = longitud del lado del rombo

De la pregunta anterior, la longitud del lado del rombo = 16 pulgadas

Por lo tanto, perímetro del rombo = 4 × 16 pulgadas

= 64 pulgadas

2х + Зу = 5
у= 5 - x
also need method

Answers

Answer:

x=10, y=-5

Step-by-step explanation:

2x+3y=5, y= 5-x; change y to 5-x:

2x+3(5-x)=5

2x-3x+15=5

-x=5-15

-x=-10

x=10

=>y=5-x=5-10=-5

HELP ASAP PLZZZZ BRAINLIST

Answers

Answer:

b

Step-by-step explanation:

Answer:

It's C!

Step-by-step explanation:

4) The center, or the middle number, of spread C is 5.

5) The spread, or beginning to last number, of spread C is 3 to 7.

6) The numbers in spread C are symmetrical.

What is the surface area of the rectangular prism?

Answers

Answer:

348 in.² is the answer.

Step-by-step explanation:

To find our answer we will multiply each number by each other.

6 x 8 = 48

6 x 9 = 54

8 x 9 = 72

Now we have our numbers 48, 54, and 72, we will multiply each one by 2.  

48 x 2 = 96

54 x 2 = 108

72 x 2 = 144

For our final step we will add all these together to find our surface area.  96 + 108 + 144 = 348.  Therefore, 248 in² is our answer.

Question 24 of 25
Find the common ratio for this geometric sequence.
72,12,2,1/3,1/18
0
A. 6
o
B. 3
c. 1/3
D.
1/6

Answers

Answer:

[tex]common \ ratio ,r =\frac{a_{2} }{a_{1} } = \frac{12}{72}=\frac{1}{6}[/tex]

option D

Find the perimeter of the figure to the nearest hundredth. (includes picture)

Answers

Answer:

20+20+(circumference of a semi circle)

40+(1/2×2πr)

49+36

= 85mm

Use trig to find the legs of ABC if the base is AC and the height is BC (round to nearest tenth)​

Answers

Answer:

GIVEN :-

∠A = 15°Length of AB (hypotenuse) = 60 ft

TO FIND :-

Length of BCLength of ACArea of ΔABC

FACTS TO KNOW BEFORE SOLVING :-

[tex]\sin \theta = \frac{Side \: opposite \: to \: \theta}{Hypotenuse}[/tex][tex]\cos \theta = \frac{Side \: adjacent \: to \: \theta}{Hypotenuse}[/tex]

SOLUTION :-

In ΔABC ,

[tex]\sin 15 = \frac{BC}{60}[/tex]

[tex]=> 0.2588... = \frac{BC}{60}[/tex]

[tex]=> BC = (0.2588....) \times 60 = 15.5291.....[/tex] ≈ 15.5 ft

[tex]\cos 15 = \frac{AC}{60}[/tex]

[tex]=> 0.9659..... = \frac{AC}{60}[/tex]

[tex]=> AC = (0.9659.....) \times 60 = 57.9555.....[/tex] ≈ 58 ft

Area of ΔABC = [tex]\frac{1}{2} \times 58 \times 15.5 = 449.5 \:ft^2[/tex]

Find 0. Round to the nearest degree.

A. 21°
B. 20°
C. 69°
D. 70°

Answers

Answer:

C. 69 (nice)

Step-by-step explanation:

Sine: Opposite side over hypotenuse

Cosine: Adjacent side over hypotenuse

Tangent: Opposite side over adjacent side

Respective to angle O, we are given the adjacent side, 5, and the hypotenuse 14, so we can use cosine.

cos(O)=5/14

O=arcsin(5/14)≈69.0752

The answer is 69.

Aiden buys a pair of jeans that cost $45.28. The sales tax that will be added to the cost of jeans is $3.62. What is the total cost of the jeans

Answers

Answer:

48.9

Step-by-step explanation:

45.28

+

 3.62

-------------

 48.90

drag each expression into the correct category

Answers

Answer:

bro i cant answer

Step-by-step explanation:

it just says Download pdf and doesn't let me click

√96 how do i solve this and it can't be a decimal

Answers

4 square root 6 :)

It would be the square root of 16*6 and the square root of 16 is 4

So in conclusion 4 square root sign 6

Which THREE sets of ordered pairs represent functions? A) {(15, –3), (–6, 9), (–3, 0), (–1, 16), (5, 5)} B) {(6, 0), (–12, –16), (–6, 10), (20, –7), (16, 9)} C) {(12, –18), (15, 1), (12, 5), (0, 9), (–5, –17)} D) {(–13, 4), (7, –15), (–13, 9), (6, –12), (–18, 0)} E) {(10, 9), (–2, –16), (–6, 7), (5, 8), (8, –16), (–11, 9)}

Answers

Answer:

A, B, and E

Step-by-step explanation:

A function has only ONE out put for each input. For example in C 12 has two outputs, -18 and 5 so that set is NOT a function.

The function f(x) is a quartic function and the zeros of f(x) are -5, 3, 4 and 6.
Assume the leading coefficient of f(x) is 1. Write the equation of the quartic
polynomial in standard form.
Help fast plz

Answers

Answer:

Step-by-step explanation:

Mia spent $30 to fill 10 gallons of gas in her minivan. How much does 6 gallons of gas cost?

Answers

Answer:

$18

Step-by-step explanation:

6/10 × $30 = $18

______

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