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
alina1380 [7]
3 years ago
10

(a) Complete the last column of the following table by calculating the estimated number of messages per day that each user recei

ves. Round to the nearest
tenth
Year
Number of users Messages per day Messages per person
(in millions) (In billions)
per day
2012
2,852
220.8
2019
3,192
243.9
2021
3,480
275.7
Mathematics
1 answer:
Andrej [43]3 years ago
5 0

Answer:

kj

Step-by-step explanation:

You might be interested in
Is tu parallel to vw? Explain.
Varvara68 [4.7K]

Answer: C

Step-by-step explanation:

6 0
2 years ago
Is this correct? Pls help within 10 minutes will mark brainliest
Vedmedyk [2.9K]

Answer:

the first answer is correct

the second answer is correct if they messed up on the question and meant to ask for the MAD of set B

I think the 3rd answer is incorrect (I got 1.09), so you might want to double-check your 3rd answer since it is asking for "times bigger", not how much bigger, which means how many times larger is the MAD of set A than that of set B and to find how many times bigger a number is than another number, you have to divide the first number by the second number.

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Two angles are complementary. one angle is 63.5 degrees. what is the other angle?
marusya05 [52]

Other angle = 90° - 63.5° = 26.5°

8 0
3 years ago
Read 2 more answers
PLEASE HELP!!!!!!!dgbdgdbhdndcn
bogdanovich [222]
Problem 1)

AC is only perpendicular to EF if angle ADE is 90 degrees

(angle ADE) + (angle DAE) + (angle AED) = 180
(angle ADE) + (44) + (48) = 180
(angle ADE) + 92 = 180
(angle ADE) + 92 - 92 = 180 - 92
angle ADE  = 88

Since angle ADE is actually 88 degrees, we do NOT have a right angle so we do NOT have a right triangle

Triangle AED is acute (all 3 angles are less than 90 degrees)

So because angle ADE is NOT 90 degrees, this means AC is NOT perpendicular to EF

-------------------------------------------------------------

Problem 2)

a) The center is (2,-3) 

The center is (h,k) and we can see that h = 2 and k = -3. It might help to write (x-2)^2+(y+3)^2 = 9 into (x-2)^2+(y-(-3))^2 = 3^3 then compare it to (x-h)^2 + (y-k)^2 = r^2

---------------------

b) The radius is 3 and the diameter is 6

From part a), we have (x-2)^2+(y-(-3))^2 = 3^3 matching (x-h)^2 + (y-k)^2 = r^2

where
h = 2
k = -3
r = 3

so, radius = r = 3
diameter = d = 2*r = 2*3 = 6

---------------------

c) The graph is shown in the image attachment. It is a circle with center point C = (2,-3) and radius r = 3.

Some points on the circle are

A = (2, 0)
B = (5, -3)
D = (2, -6)
E = (-1, -3)

Note how the distance from the center C to some point on the circle, say point B, is 3 units. In other words segment BC = 3.

6 0
3 years ago
Hi does anyone know how to solve this question if so please show the working out.
tester [92]

Explanation:

The Law of Sines is your friend, as is the Pythagorean theorem.

Label the unmarked slanted segments "a" and "b" with "b" being the hypotenuse of the right triangle, and "a" being the common segment between the 45° and 60° angles.

Then we have from the Pythagorean theorem ...

  b² = 4² +(2√2)² = 24

  b = √24

From the Law of Sines, we know that ...

  b/sin(60°) = a/sin(θ)

  y/sin(45°) = a/sin(φ)

Solving the first of these equations for "a" and the second for "y", we get ...

  a = b·sin(θ)/sin(60°)

and ...

  y = a·sin(45°)/sin(φ)

Substituting for "a" into the second equation, we get ...

  y = b·sin(θ)/sin(60°)·sin(45°)/sin(φ) = (b·sin(45°)/sin(60°))·sin(θ)/sin(φ)

So, we need to find the value of the coefficient ...

  b·sin(45°)/sin(60°) = (√24·(√2)/2)/((√3)/2)

  = √(24·2/3) = √16 = 4

and that completes the development:

  y = 4·sin(θ)/sin(φ)

6 0
3 years ago
Other questions:
  • What's the answer to question 10 and 11
    15·1 answer
  • "Suppose that a committee is studying whether or not there is waste of time in our judicial system. It is interested in the mean
    12·1 answer
  • Sophia is 38 inches tall. Her mom is 5 feet tall. How many inches taller is Sophia's mom?
    13·2 answers
  • in the state of manie,the ratio of moose to people is 5 to 2.If a certain county in Maine has a population of 1,120 people, how
    7·1 answer
  • What is the value of x in the following equation.<br> -x ^3/2 = -27
    5·1 answer
  • 33.Platinum crystallizes with the face-centered cubic unit cell. The radius of a platinum atom is 139 pm. Calculate the edge len
    15·1 answer
  • Solve 3^2x =30<br><br> a- log3 (30)/2<br> b- log3 15<br> c- 2(log 3 30)<br> d- log 3 60
    8·1 answer
  • PLEASE HELP WILL MARK BRAINLIEST!!!!! +20 POINTS <br> only answer number 25.
    13·1 answer
  • Please help help help help help help​
    12·1 answer
  • Help me please this is due please help
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!