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
viva [34]
3 years ago
15

Kner Page Classes

Mathematics
1 answer:
Ann [662]3 years ago
7 0

Answer:

C

Step-by-step explanation:

You might be interested in
A rocket lifted off from a launch pad and traveled vertically 30 km, then traveled 40 km at 30 degrees from the vertical, and th
nika2105 [10]
Well, we are told that in the beginning, it has traveled 30km vertically, so do not forget to add that on at the end.

Next it says that it traveled 40km 30 degrees from vertical, so we set up a sin equation to solve for the missing side, n:

sin(angle)= opposite/hypotenuse:

sin(30) = n/40

40sin30=n

n=20km

Then it says at an angle of 45 degrees, it goes 100km. This means that we are given the hypotenuse of a right triangle, and we need to find the side that goes up and down. We shall call this length x.

We know that the angle opposite x is 45 degrees.

So, we will use sin to solve for x:

sin(angle)= opposite/hypotenuse

sin45= x/100

100sin45=x

x=70.711km

But remember, I said not to forget about that 30km from the very beginning? So we add up all of our vertical heights:

30km + 20km+ 70.711km = 120.711km
3 0
3 years ago
Read 2 more answers
!Help !
svetoff [14.1K]

Answer:

50 minutes

Step-by-step explanation:

she spent 1 hr and 30 minutes on homework

she spends 2/3 of an hour on the phone = 40 minutes

1 hr 30 min + 40 minutes = 2 hrs and 10 min

so she had 50 minutes to kill before bedtime since she goes to sleep 3 hrs after dinner

2hr 10 min + 50 min = 3 hrs.

8 0
3 years ago
PLZ HELP ASAP!!!!! FIRST PERSON TO ANSWER WILL GET BRAINLIEST!!!!!
Sergeu [11.5K]

Answer:

y+2x=8 y=1/2x+2 2y=4-x

Step-by-step explanation:

3 0
3 years ago
A fireman's water hose shoots 320 kg of water each second against the door of a building. The velocity of the water is 20 m/s an
NeX [460]

Answer:

6400\ \text{N}

Step-by-step explanation:

\dfrac{m}{t} = Mass flow rate of water = 320 kg/s

m = Mass of water on the door

t = Time

v = Velocity of water on the door = 20 m/s

Force is given by

F=\dfrac{m}{t}v\\\Rightarrow F=320\times 20\\\Rightarrow F=6400\ \text{N}

The average force is exerted by the stream of water is 6400\ \text{N}.

3 0
3 years ago
12. Shreyas orders a pizza for himself and eats 5/8 of the entire pizza. The next day he eats 1/3 of the remaining pizza as a sn
svet-max [94.6K]

Answer:

1562.5

Step-by-step explanation: 2500 divided by 8 times 5

8 0
3 years ago
Read 2 more answers
Other questions:
  • Carl's cable company charges $55 for monthly service plus $4 for each pay-per-view movie. Teleview cable company charges $110 pe
    14·1 answer
  • I cannot figure this out. Anyone?<br><br> 5(-3x - 2) - (x - 3) = -4(4x + 5) + 13
    14·1 answer
  • If a bullentin board is 6 ft wide and 4 ft tall. what are the deminsions inside
    6·1 answer
  • Ralph has sliced a pizza using straight line cuts through the center of the pizza. the slices are not exactly the same size. Ral
    14·2 answers
  • Write each quadratic function below in terms of linear factors.a)f(x)=x²-25b)f(x)=x²+25c)f(x)=4x²+25d)f(x)=x²-2x+1e)f(x)=x²-2x+4
    6·1 answer
  • Need help please!!!
    5·1 answer
  • The Venn diagram above represents the students who were sick one day in January at a Chicago high school. 80 students had only a
    8·1 answer
  • Perform the operation and, if possible, simplify<br> 21/20 - 4/15
    7·1 answer
  • Determine the total surface area of the prism with the net shown.
    8·1 answer
  • PLZ HELP I WILL GIVE BRIANLY!
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!