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
3241004551 [841]
3 years ago
8

Determine the circumference of a circle with a radius of 4 units.

Mathematics
1 answer:
Zarrin [17]3 years ago
7 0
Your answer is choice A.
You might be interested in
What is 12g + 5t + 3t - 2t- 6g make sure to please evaluate the expression
dezoksy [38]

Answer:

6g+6t

Step-by-step explanation:

Combine like terms.

12g + 5t + 3t - 2t- 6g

12g-6g + 5t + 3t - 2t

6g + 8t - 2t

6g + 6t

4 0
2 years ago
The approximate number of bicycles in the United States in the year 2007 was 14,000,000. How can this number be expressed in sci
elena-s [515]

Answer:

1.4*10^7

Step-by-step explanation:

we have

14,000,000

Remember that

14,000,000=1.4(10,000,000)

and

10,000,000=1*10^7=10^7

substitute

14,000,000=1.4*10^7

8 0
3 years ago
A square pyramid has a volume of 20 cubic feet and a base length of 5 feet. What is it's height?
erastova [34]

Answer:

The height of the pyramid is 2.4\ ft

Step-by-step explanation:

we know that

The volume of a square pyramid is equal to

V=\frac{1}{3}b^{2}h

we have

V=20\ ft^{3}

b=5\ ft

substitute and solve for h

20=\frac{1}{3}(5)^{2}h

60=(25)h

h=60/(25)=2.4\ ft

5 0
3 years ago
Estimate. Then find the product 6 x 219
brilliants [131]

1310 real answer 1314

5 0
3 years ago
Read 2 more answers
while visiting a mountain, John approximated the angle of elevation to the top of a hill to be 25 degrees. Alfter walking 350 fe
strojnjashka [21]
There are several ways of going about this problem, but just know that it all boils down to triangles and the rules/laws of triangles.
So we start by making a large right triangle, because the hill is vertical with the horizontal ground, with 25° as the left angle (where John looks up to top), 90° is the right angle (where ground meets hill base). So we see that the top side of the triangle is the hypotenuse, and equals the line of sight from John to hilltop.
Now we've got additional information that if John walks 350ft towards the hill, his angle of elevation increases by 14. So that = 25+14 = 39. How does that possibly help us?? Well now we can make 2 triangles inside of the one we've already made. So that now we have the triangle base split between the left angle of 25° and where he stopped 350ft to the right of that.
Now the supplement of 39 is 141, and the remaining piece of that too left triangle = 180-25-141 = 14. What does that mean? Well now we have a triangle, where we know all 3 angles and 1 side --> we can find another side by the law of sines:
If a, b and c are the lengths of the legs of a triangle opposite to the angles A, B and C respectively; then the law of sines states:
a÷sinA = b÷sinB = c÷sinC
We really need the hypotenuse to then find our hill height, so we'll make hypotenuse = side b in attached image. That being so, then its opposite angle (B) = 141. And the top right angle (C) = 14 with its opposite side (c) = 350ft.
Now we only need b÷sinB = c÷sinC
So b/sin141 = 350/sin14 --> b = 350sin141/sin14 = 350×.63/
b = 220.3/.24 = 910.47 ft
Now that's our hypotenuse, so using our original large right triangle, we can use right triangular trig. to solve. Let's make the right side, our hill height, equal to x.
Sin ¥ = opp. side / hypotenuse -->
Sin ¥ = x / hypotenuse
Sin25 = x / 910.5
x = 910.5×sin25 = 910.5×.423
x = 384.8 ft

3 0
3 years ago
Other questions:
  • Whats 16*2-3(2^6+12)*5
    14·2 answers
  • 5.38 convert expanded form
    10·1 answer
  • What is negative 2 plus positive two (-2+2) ????
    5·2 answers
  • In class of 60 boys, there are 45 boys who play card and 30 boys who play carom. How many play both games​
    13·2 answers
  • Which equation represents a circle with a center at (-3,-5) and a radius of 6 units?
    6·2 answers
  • Isaac planted 12 pepper plants. he planted twice as many green pepper plants as red pepper plants. how many green pepper plants
    12·1 answer
  • Pl help its for homework
    10·1 answer
  • If fog(x)=2x-1/x and g(x)=5x+2 , find f(x).​
    9·1 answer
  • The set of all first components of the ordered pairs is called the:
    5·1 answer
  • Which expression shows the distance on the number line between −7 and 16?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!