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
ira [324]
3 years ago
8

Peter needs to find the distance across the pond shown in the diagram. He starts from point C and walks 200 meters to point B. T

hen he turns 105º and walks 180 meters to reach point A at the other side of the pond. The approximate distance across the pond is meters.

Mathematics
2 answers:
gladu [14]3 years ago
5 0

Answer:

c=231.87 m

Step-by-step explanation:

When we read this example we can see that Peter will form triangle with those sides :

a=200 m,

b=180 m

cos X=cos (180-105)=cos75

x is angle.

Now, we can use this rule :

c^{2} =a^2+b^2-2abcosX

Now, let's evaluate :

c^{2} =200^{2} +180^{2} -200*180cos75\\c^2=40000+32 400-18 645\\c^2=53765\\c=231.87 m

kow [346]3 years ago
3 0

Answer:

PLATO USERS: the question asks for you to round to the nearest integer so the answer is 232. Plato is very picky so you have to enter 232 and not 231.87 or you'll get it wrong,

Step-by-step explanation:

i just took the test and got 5/5 correct

You might be interested in
What is x-4y=28 2x+y=2 on a graph
trasher [3.6K]
<span>-4y + x = 28
<span>  y + 2x = 2

hope this helped :)
alisa202</span></span>
3 0
3 years ago
Which function is (x-3) a real root?
uranmaximum [27]
Number 333333333333333333333333
8 0
2 years ago
The function P(x) = –0.015x^2 + 1.2x – 11.5 gives the profit, in thousands of dollars, when a company sells a new product at x d
dlinn [17]

Answer:

The profit decreases by $ 375 for every $ 1 increase in the selling price.

Step-by-step explanation:

From the definition of the secant line we get that the average rate of change of P(x) = -0.015\cdot x^{2}+1.2\cdot x -11.5, where x is the selling price of the product, measured in dollars per unit, is:

r = \frac{P(55)-P(50)}{55-50} (1)

Now we evaluate the function at each bound:

x = 50

P(50) = -0.015\cdot (50)^{2}+1.2\cdot (50)-11.5

P(50) = 11

x = 55

P(55) = -0.015\cdot (55)^{2}+1.2\cdot (55)-11.5

P(55) = 9.125

Then, the average rate of change is:

r = \frac{9.125-11}{55-50}

r = -0.375

Hence, the profit decreases by $ 375 for every $ 1 increase in the selling price.

8 0
2 years ago
Use the ratio table to determine how many people 13 subs would serve. Explain look at the photo
adoni [48]
I think its 44. The amount of people increase by 12 every time you add more subs. Hope that helps!
5 0
3 years ago
Read 2 more answers
Which equation represents the statement: Three times the sum of a number and 5 is –30?
castortr0y [4]

Answer:

3(n+5)=-30

Step-by-step explanation:

Three times the sum of a number and 5 is - 30

Vocabulary:

times = multiplication, represented with *

sum = addition, represented by +

unknown number = n

Three * the sum of a number and 5

The sum of a number and 5 is the same as saying n + 5

So we are multiplying 3 by n + 5

Because n is an unknown variable we have to separate the sum of n and 5 from being multiplied by 3 with parenthesis. We do this because if we want to multiply 3 by the sum of n and 5. If we put 3 * n + 5 we are only multiplying the unknown variable by 3 not including the 5 that is added to it.

So we get 3( n + 5 ) is -30

3(n+5)=-30 is the answer.

3 0
2 years ago
Read 2 more answers
Other questions:
  • Solve 3(x-4)=-5 for x. Justify each step
    6·1 answer
  • I will give brainiest to whoever answers this 20 is 25% of what number? enter your answer in the box . plz help
    14·1 answer
  • You drive your car for 4.5 hours at an average speed of 70 miles per hour how far did you go
    12·1 answer
  • Solve the equation. 19 + n = 30 19+n=3019, plus, n, equals, 30 n = n=
    8·1 answer
  • The diagonals of rectangle nopq intersect at point r. if oq=2(x+3) and pr=3x-5, solve for x.
    12·2 answers
  • PLEASE HELP! I have no clue how to do this!
    5·1 answer
  • E^2=36. solve for e<br> e = ± ( )
    7·1 answer
  • a desert recipe calls for 3 1/2 cups of milk and makes 6 servings. H ow many cups of milk are needed for 9 serving​
    7·1 answer
  • Write the system and
    6·1 answer
  • Do the following, i mean like... its not THAT HARD
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!