1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
suter [353]
4 years ago
5

The height of a radio tower is 650 ​feet, and the ground on one side of the tower slopes upward at an angle of 10°.

Mathematics
1 answer:
Leni [432]4 years ago
4 0

Answer with Step-by-step explanation:

We are given that

Height of radio tower =650 ft

From figure

AB=650 ft

BC=180 ft

We have to find the AC.

Using cosine law:

c=\sqrt{a^2+b^2-2ab cos\alpha}

AC=\sqrt{(650)^2+(180)^2-2\times 650\times 180\times cos 80^{\circ}}

c=643.64 ft

Hence, a guy required 643.64 ft wire when it is to connect to the tower and be secured at  a point on the sloped side 180 ft from the base of the tower.

b.In a right triangle ABC, AB=\frac{650}{2}=325 ft

Pythagorous theorem :(Hypotensuse)^2=(perpendicular\;side)^2+(base)^2

Substitute the values

(AC)^2=(AB)^2+(BC)^2

(AC)=\sqrt{(325)^2+(180)^2}

AC=371.52 ft

Hence, the length of wire should be 371.52 ft when a second guy connect  the middle of the tower and be secured at a point 180 ft from the base on the flat side by wire.

You might be interested in
What is x-intercept of the line with the equation 4×+2y=12?
Julli [10]
The X-intercept is a point where the line crosses the X lines. That means it would be the point where Y=0. Then to find the X-intercept you only need to insert Y=0 into the equation. The calculation would be:

<span> 4×+2y=12
4X+ 2 (0)= 12
4X =12
X=12/4 = 3</span>
5 0
3 years ago
Read 2 more answers
Write an expression to find the difference in the maximum area and minimum area of a nys high school soccer field. Then evaluate
givi [52]
The maximum area of the school soccer field is given by the maximum length times the maximum width.

Thus maximum area = 120 x 80 = 9,600 square yards.

The minimum area of the school soccer field is given by the minimum length times the minimum width.

Thus maximum area = 100 x 55 = 5,500 square yards.

Therefore, the difference between the maximum area and the minimum area is 9,600 - 5,500 = 4,100 square yards.
5 0
3 years ago
Complete the paragraph to show how you can solve problems involving equivalent expressions.
miv72 [106K]

Answer:

Step-by-step explanation:

Model the expressions

with bar models or algebra tiles to determine if the expressions are

Equivalent.

You can also write equivalent expressions using

properties of operations

and order of operations.

8 0
3 years ago
Read 2 more answers
In the data set below, what is the median
evablogger [386]
It’s 6
since it’s right at 5 & 7
8 0
3 years ago
A researcher investigates whether there is a relationship between hours of sleep and memory for photographs. The researcher assi
ehidna [41]

Answer:

It is the experimental condition.

Step-by-step explanation:

In the experiment given in the question, the amount of sleep is the independent variable and the number of photographs they remember is the dependent variable because it depends on the amount of sleep.

The 8 hours of sleep, which creates the difference in the experiment between the control group and the test group, is the experimental condition.

The experimental condition is the variable that is changed to let the researcher observe the effects on the dependent variable.

I hope this answer helps.

8 0
4 years ago
Read 2 more answers
Other questions:
  • Mandana is ordering new tile for her kitchen floor. The area of the floor is 117.7 square feet, and she wants to order between 1
    5·2 answers
  • The Wilson’s drove 324 miles in 6hours if they drove the same number of miles each hour,how many miles did they drive in 1hour
    7·1 answer
  • All values equivalent to 1/2
    10·1 answer
  • Please help if you’re good at range! BRAINLIEST TO BEST ANSWER! What’s the range of this graph?
    11·1 answer
  • Read the excerpt from "Healthy Eating." "Cherish the season," is her motto. If kids want something out of season, it's OK to buy
    10·2 answers
  • 665.8 rounded to the nearest tenth of a cubic meter
    15·1 answer
  • To go with my last question.
    8·2 answers
  • What is $25 at 14% off
    14·2 answers
  • Which equation will have no solution for x? *
    13·1 answer
  • Convert 30% to a fraction in lowest terms
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!