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
Sever21 [200]
3 years ago
14

If the mean proportional between x and 2 is 4, find x​

Mathematics
1 answer:
Maru [420]3 years ago
7 0

Answer:

b2 = ac

4 square = x×2

16=2x

x=8

You might be interested in
What are compatible numbers for 12 and 21
Leni [432]
Compatible number is 33
6 0
3 years ago
Factor completely.
tatyana61 [14]

Answer:

A.) (7t³ + 2k^4)(7t³ - 2k^4)

Step-by-step explanation:

Factor the following:

49 t^6 - 4 k^8

49 t^6 - 4 k^8 = (7 t^3)^2 - (2 k^4)^2:

(7 t^3)^2 - (2 k^4)^2

Factor the difference of two squares. (7 t^3)^2 - (2 k^4)^2 = (7 t^3 - 2 k^4) (7 t^3 + 2 k^4):

Answer:  (7 t^3 - 2 k^4) (7 t^3 + 2 k^4)

3 0
3 years ago
Read 2 more answers
Solve the system by graphing
Marta_Voda [28]

\left\{\begin{array}{ccc}-2x=2y-4\\2x-y=-5\end{array}\right\\\\2y-4=-2x\ \ \ \ |+4\\2y=-2x+4\ \ \ \ |:2\\y=-x+2\\for\ x=0\to y=-0+2=2\to(0,\ 2)\\for\ x=2\to y=-2+2=0\to(2,\ 0)\\\\2x-y=-5\ \ \ \ |-2x\\-y=-2x-5\ \ \ \ |\cdot(-1)\\y=2x+5\\for\ x=0\to y=2(0)+5=5\to(0,\ 5)\\for\ x=-2\to y=2(-2)+5=1\to(-2,\ 1)\\\\Answer:\ (-1,\ 3)\to\ x=-1,\ y=3

7 0
3 years ago
A grocery store sells a 6-pack of bottled water for $3.79 and a 12-pack of water for $6.89.
Ivenika [448]
It will be  26.1131 per bottle hopes this helps :)
7 0
4 years ago
5. (03.02 MC)
inn [45]

Answer:

f(4) =2

Step-by-step explanation:

f(x) = 2х^2 - 30,

Let x=4

f(4) = 2 (4)^2 -30

     = 2*16 -30

       =32-30

      = 2

6 0
3 years ago
Other questions:
  • Researchers used 7 red and 7 black playing cards to randomly assign 14 volunteer males with high blood pressure to one of the tw
    13·1 answer
  • The mean for this set of data is 95 what is the missing number<br> 103,99,90,86,105,96,__
    12·1 answer
  • Three-fifths of the members of the Spanish club are girls. There are a total of 30 girls in the Spanish club.
    10·1 answer
  • Would the height of a circle be considered the diameter?
    8·2 answers
  • I neeeddddd helppppp it’s urgenttttttt!!!!!!!!
    13·2 answers
  • I will give brainiest to whoever answers correctly !!
    5·1 answer
  • What is 1.33333333332 as a fraction
    10·1 answer
  • Be Precise What is the difference between a terminating decimal and a repeating <br> decimal?
    12·1 answer
  • Solve the system substitution y= 4x + 1 and 3x+2y =13
    15·1 answer
  • What is the probability of flipping a coin once and getting heads if you have gotten 5 tails in a row before that?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!