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
11111nata11111 [884]
3 years ago
14

Here are 10 test scores: 30, 74, 76, 77, 78, 79, 80, 80, 82, 84. The mean of these scores is 74.

Mathematics
1 answer:
creativ13 [48]3 years ago
8 0
We add up all those numbers (excluding 30) and divide by the number of numbers (9). This results in 78.8 (round up to 79).

79-74 = 5. So the mean has increased by 5 points. (C)
You might be interested in
Do you agree or disagree that we should study number systems in computing? Why are Binary and Hexadecimal so important in comput
yulyashka [42]

Answer: Yes, I agree we should study number system in computing.

Step-by-step explanation:

Hexadecimal numbers can be easily converted to binary numbers.

4 0
3 years ago
PLS HELP ME I'M SO CONFUSED!!!!!!
WARRIOR [948]

Step-by-step explanation:

You have to use logarithms.

1) a = log_3 (1/27) = -log_3 (27) = -3

2) b = log_3 (9 * 3^(1/2)) = log_3 (3 ^ {5/2}) = 5/2

3) c = -log_3 (sqrt3) = -1/2

3 0
2 years ago
Read 2 more answers
I’ll give Brainly! :) Which equation has the greatest value when solved?
Katena32 [7]

Answer:

I'm pretty sure it's a

Step-by-step explanation:

A:41

B:27

C:38

D:40

6 0
3 years ago
Read 2 more answers
the Olympic record for the men's 100m freestyle is 47 seconds. the Olympic record for the women's 50m freestyle is 24 seconds. w
Nikolay [14]

Answer:

Step-by-step explanation:

The unit rate of the 100m race is 2.12... m/s which you get by dividing the 100 meters by the 47 seconds. The unit rate for the 50m race is 2.08... m/s which you get by dividing the 50 meters by the 24 seconds. This means that the record for the 100m race is faster.

5 0
3 years ago
So I was doing a hooda math escape game, and forgot how to do these. Can you help me?
Elan Coil [88]
Pi * r ^ 2 that’s house help you out with what you need hunn
5 0
3 years ago
Read 2 more answers
Other questions:
  • If matrix A has dimensions m x n and matrix B has dimensions n x p where m, n, and p are distinct positive integers, which of th
    6·2 answers
  • Whats 5/6 - 1/3 i need too know
    13·2 answers
  • What's the unit rate $4.80 for 6 cans
    10·1 answer
  • Opening Exercise
    13·1 answer
  • A hemispherical wooden bowl has an internal radius of 8cm and an external radius of 9cm
    12·2 answers
  • 7^3/7 round the fraction to the nearest whole number
    6·1 answer
  • 2. Find the slope:<br> (-3, -27), (1,9)
    9·1 answer
  • Can i have some help
    5·1 answer
  • Which is the approximate perimeter for triangle PQR<br><br> A- 16<br> B- 17<br> C- 19<br> D- 21
    13·1 answer
  • A turtle travels 5/12 mile in 1/3 hour and a snail travels 1/8 mile in 3/4 hour. Which animal is faster?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!