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
Olegator [25]
3 years ago
15

Consider the equation n2+5=21.

Mathematics
1 answer:
lesya692 [45]3 years ago
6 0

Step-by-step explanation:

n2+5=21

n2 =21-5

n2 = 16

n =16/2=8

You might be interested in
Students in a high school woodworking class wants to conduct a survey to determine the percentage of students in the school who
Karo-lina-s [1.5K]

Answer:

a) cluster sampling

Step-by-step explanation:

In cluster sampling method, each member of a population is assigned to one and only one group.This means clusters are formed through probability method usually a simple random sampling.The participants in the clusters are the only one to be surveyed.

In this example,  simple random sampling is used to identify 12 home rooms(cluster) where a group of 20 students (participants) in each room is given the survey.

4 0
3 years ago
I have trouble understanding word problems. May I please have help with number 15? Thank you very much!
guapka [62]
Basically you do fractions side by side. so, 6/3=15/h and then cross multiply to get your answer so that would give you 3h=80, then divide 80÷3
5 0
3 years ago
In the game of roulette, a player can place a $4 bet on the number 10 and have a 1/38 probability of winning. If the metal ball
Ahat [919]

this one is kinda Hard ill do sum research and help

5 0
3 years ago
At noon joyce drove to the lake at 30 mph, but she made the long walk back home at 4 mph. how many hours did she walk if she was
lina2011 [118]
By definition we have the following equation:
 t = d / v
 Where,
 t: time
 d: distance
 v: speed
 For this case we have:
 d / 30 + d / 4 = 17
 Rewriting we have:
 2d + 15d = 17 (60)
 17d = 17 (60)
 d = 60 mi
 Then, the walking time is
 t = d / v
 t = 60/4
 t = 15 hours
 Answer:
 
She walked
 
t = 15 hours
4 0
3 years ago
What is y = 1/3x + 8 2/3 in point-slope form?
TiliK225 [7]

Answer:

y= 1/3x+26/3

Step-by-step explanation:

Hey so I'm tryna' do this thing wit my friend we have to get the most brainliest in 1 week so I was wondering if you could help me on that by giving me brainliest, u don't have to tho! it was a pleasure helping you.

4 0
3 years ago
Other questions:
  • Marcos has $24. Yaneliz has 1/6 of the amount of money Marcos has. Write an expression.
    13·2 answers
  • What is partial product of 429<br> X 35?
    15·1 answer
  • Factor the polynomial by factoring out the GCF. <br><br>6y^3 − 9y^2
    7·1 answer
  • 9k - 12 - 8k + 10 - 5k Please help and go fast I have limited time
    15·1 answer
  • I need help with question 8
    12·1 answer
  • PLEASE HELP i need it !!!!!
    6·1 answer
  • 3.) AI 65 kom hr. Alfred can reach home in 50 minutes. At what speed should he drive his car
    10·1 answer
  • A teacher brings 4 packs of pencils to school each pack contains 12 she has 25 students in her class how many pencils can she gi
    8·1 answer
  • Find the surface area of the regular pyramid.
    5·1 answer
  • Question
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!