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
BigorU [14]
3 years ago
7

Select the correct answer. The velocity of a train relative to the ground is represented by the distance from A to B in the diag

ram. The velocity of a ball thrown inside the train at an angle of 66° relative to the train is represented by the distance from B to C. What is the distance from A to C (the velocity of the ball relative to the ground), correct to two decimal places? Assume that all the points in the diagram lie in the same plane. A. 21.14 m/s B. 18.03 m/s C. 17.20 m/s D. 15.00 m/s
Mathematics
2 answers:
Alina [70]3 years ago
8 0
The answer is A. 21.14 m/s
pav-90 [236]3 years ago
6 0

Answer:

A

Step-by-step explanation:

You might be interested in
Solve the equation 8x-2(x+1)=2(3x-1)
Ivahew [28]

Answer:

All that equals 0.

(Both sides are equal)

6 0
3 years ago
Can someone graph, show your work.<br> 2x + 5y = 8
Kruka [31]

Your answer is 4 loves, trust me

6 0
2 years ago
Find the cardinal number for the given set.
iris [78.8K]

Answer:

The cardinal number is 12

Step-by-step explanation:

The cardinal number of a set represents the number of distinct elements of the set. That means for this exercise the goal is to identify the total number of elements of the set.

First step. Identifying the elements of the set.

If we look at the sequence 9, 11, 13, ... , 31, we have an arithmetic sequence a_n, so we can start by finding the common difference d.

d = a_{n+1}-a_n

That means we can pick any 2 consecutive terms and find the subtraction of them, so we can pick for example 9 and 11, thus we get

d= 11-9\\d=2

Second step. Finding the number of terms of the arithmetic sequence.

Now to find the number of elements n of that sequence, we can look at the last number of the sequence on this case it is 31, and we can use the formula for the nth term, that is

a_n=a_1 + d(n-1)

Replacing the last term a_n = 31 and the initial term a_1=9, will give us

31=9+2(n-1)

From there we can solve for n, by moving first that 9 to the other side.

31-9=2(n-1)\\22=2(n-1)

Then we can divide both sides by 2, and lastly add by 1.

\cfrac{22}{2} = n-1  \\11 = n-1\\\boxed{n= 12}

Thus since the sequence has 12 elements, we know that the cardinal number of the set is 12.

7 0
3 years ago
I don’t have any idea what to do
lutik1710 [3]
The answer to your question is 15
6 0
3 years ago
Find the value of the expression 100 – 10p3 when p = 0
Zina [86]

Answer:

Step-by-step explanation:

despacito

6 0
2 years ago
Read 2 more answers
Other questions:
  • Solve for x: −2(x + 3) = −2(x + 1) − 4. (1 point) a 2 b 3 c All real numbers d No solution
    10·1 answer
  • Evaluate cos0 if sin0= 5/3<br>​
    12·1 answer
  • If K(3, -7) is rotated 270°, what will be the coordinates of its image?
    6·2 answers
  • Create an expression equivalent to 2 (3x =1) 3x+4 using the least number of terms
    8·1 answer
  • Write a word problem for 1/5 divided by 10.
    8·2 answers
  • Which graph shows rotation?
    5·2 answers
  • Which number is not written in scientific notation
    7·2 answers
  • The area of Kamar’s tabletop is a whole number of square feet. Could the length and width be decimal numbers each with one decim
    5·1 answer
  • Which equation has a solution of 4? Select all that apply. A 12x = 3 C10 + x = 14 B 6x = 24 DX-4 = 8​
    15·1 answer
  • Someone please help im stuck
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!