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
Crank
3 years ago
12

Pls help no links pls

Mathematics
2 answers:
goblinko [34]3 years ago
7 0
B is the correct answer
Alex787 [66]3 years ago
3 0

Answer:

B; or 8.5

Step-by-step explanation:

Mean is also known for average of the numbers.

To find the mean simply add all the numbers together and divide by the quantity of the numbers given. So first add up "8 + 10 + 6 + 4 + 12 + 6 + 8 + 14" this all equals to 68 and since the total quantity of the numbers given is 8, so divide 68 by 8 which gives the answer as 8.5.

Hope this helps!

You might be interested in
Need help with question 15
ad-work [718]

Answer:

68 degrees

Step-by-step explanation:

triangle = 180 degrees

<BFD = 180 - 90 - 22 = 68 degrees

5 0
3 years ago
What is the equation of a line perpendicular to:
Nataly [62]

Step-by-step explanation:

"perpendicular" means it creates a right angle (90°) with the original line.

a key element is the slope (the incline) of the line.

it is the factor of x (here 1/4 for the original line) and is defined as the ratio of "y coordinate change / x coordinate change" when going from one point on the line to another.

the given slope of 1/4 means that for every increase in x by 4 units y increases by 1 unit.

now if you want to draw a few random lines, and then draw lines that cross them with a right angle, you will see very quickly the relationship of the slopes of the crossing lines :

for the slope of the perpendicular line x and y of the original slope trade places (the ratio turns "upside-down") and the sign of the slope flips (if the original line goes up, then the perpendicular line goes down and vice versa. so + turns into -, and - into +).

so, our original slope 1/4 turns into -4/1 = -4.

we still have infinite possibilities to draw such a perpendicular line (more up or more down on the coordinate grid).

to finally "nail" one particular line we need to use the given point and solve for the y-intercept.

the general slope-intercept form is

y = ax + b

a is the slope, b is the y-intercept (the y value for x = 0).

so, using the slope (-4) and the point (2, 5) we have

5 = -4×2 + b = -8 + b

13 = b

so, the full equation is

y = -4x + 13

7 0
2 years ago
ITO
Setler [38]

Using the speed - distance relationship, the time left before the appointed time is 27 minutes.

<u>Recall</u><u> </u><u>:</u>

  • Distance = speed × time

  • Let time = t

<u>At</u><u> </u><u>10mph</u><u> </u><u>:</u>

  • Distance = 10 × (t + 3) = 10t + 30 - - - (1)

<u>At</u><u> </u><u>12</u><u> </u><u>mph</u><u> </u><u>:</u>

  • Distance = 12 × (t - 2) = 12t - 24 - - - - (2)

<em>Equate</em><em> </em><em>(</em><em>1</em><em>)</em><em> </em><em>and</em><em> </em><em>(</em><em>2</em><em>)</em><em> </em><em>:</em>

10t + 30 = 12t - 24

<em>Collect</em><em> </em><em>like</em><em> </em><em>terms</em><em> </em>

10t - 12t = - 24 - 30

-2t = - 54

<em>Divide</em><em> </em><em>both</em><em> </em><em>sides</em><em> </em><em>by</em><em> </em><em>-</em><em> </em><em>2</em>

t = 54 / 2

t = 27

Hence, the time left before the appointed time is 27 minutes.

Learn more : brainly.com/question/25669152

8 0
2 years ago
Read 2 more answers
Derrick has $4 to play video games at the mall each game cost a quarter to play. What’s the total number of games he can play
Alborosie
Derrick can play 16 games in total.
5 0
3 years ago
Read 2 more answers
A⋅a/\2⋅a/\3=?? I need help ASAP
wolverine [178]

Answer:

a^6

Step-by-step explanation:

a^1 * a^2 * a^3 = 1+2+3(add all power when same variable)

a^6

7 0
3 years ago
Other questions:
  • if the variance of the data values in a population is 256, what is the standard deviation of the data values?
    11·1 answer
  • If someone can help me with this question and get it right I will mark brainliest.
    14·1 answer
  • Which pairs of triangles can be shown to be congruent using rigid motions?
    14·2 answers
  • A number cube with the numbers 1 through 6 is rolled. Find the given probability
    6·2 answers
  • HELP NOWW!!!<br> PLSS I NEED HELP RIGHT NOWWW!!<br> PLS HELP
    13·2 answers
  • A recipe calls for 2 teaspoons
    8·1 answer
  • Find the perimeter of a rectangle with a length of 4x + 2 and a width of 2x
    13·2 answers
  • How to multiply 21 x 25 in oldschool way
    15·1 answer
  • Mr. Johnson sells erasers for $3 each. He sold 96 last week and he sold 204 this week. About how much more money did he make thi
    5·2 answers
  • Which pair of angles are alternate interior angles? ​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!