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
egoroff_w [7]
3 years ago
13

I don't understand. Please Help Me!

Mathematics
1 answer:
diamong [38]3 years ago
4 0

Answer:

what

Step-by-step explanation:

You might be interested in
Bonjour j’ai un exercice de maths et je ne comprends rien
Minchanka [31]
Donc pour trouver la réduction de 30% nous allons trouver 30% de 49 alors nous allons faire 30 × 100 × 49 = 14,7 14,7 est la réduction maintenant nous devons faire 49 € -14,7 € soit 34,3 €, le prix est maintenant de 34,3 €, désolé d'utiliser Google Translate pour vous aider, mais j'espère que c'est correct :)
4 0
3 years ago
Which of the following graphs the equation. <br> Y=1/3x -2
olga_2 [115]

Answer:

I don't know your answer options, but this is what the graph would look like:

**please mark brainliest!!

3 0
3 years ago
What is 15 to the third power
Natalka [10]

Answer:

your answer should be 45

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Determine the astm grain size number if 33 grains per square inch are measured at a magnification of 270×
strojnjashka [21]
8.9

The equation for the grain size is expressed as the equality:
Nm(M/100)^2 = 2^(n-1)
where
Nm = number of grains per square inch at magnification M.
M = Magnification
n = ASTM grain size number

Let's solve for n, then substitute the known values and calculate.
Nm(M/100)^2 = 2^(n-1)

log(Nm(M/100)^2) = log(2^(n-1))
log(Nm) + 2*log(M/100) = (n-1) * log(2)
(log(Nm) + 2*log(M/100))/log(2) = n-1
(log(Nm) + 2*log(M/100))/log(2) + 1 = n

(log(33) + 2*log(270/100))/log(2) + 1 = n
(1.51851394 + 2*0.431363764)/0.301029996 + 1 = n
(1.51851394 + 0.862727528)/0.301029996 + 1 = n
2.381241468/0.301029996 + 1 = n
7.910312934 + 1 = n
8.910312934 = n

So the ASTM grain size number is 8.9

If you want to calculate the number of grains per square inch, you'd use the
same formula with M equal to 1. So:
Nm(M/100)^2 = 2^(n-1)
Nm(1/100)^2 = 2^(8.9-1)
Nm(1/10000) = 2^7.9
Nm(1/10000) = 238.8564458
Nm = 2388564.458

Or about 2,400,000 grains per square inch.
7 0
3 years ago
16m - (5 + 9m) which one is it
Jlenok [28]

Answer:

B

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Which expression is equivalent to √ -80?
    8·1 answer
  • What’s the correct answer
    5·2 answers
  • in a survey, 6/10 of the students chose saturday and 1/10 chose monday as their favorite day of the week. what fraction shows th
    5·1 answer
  • How to divide 5/8 by 5
    8·1 answer
  • Which equivalent form of g(x)=2x^2-12x-54 is the best form to find the zeros of the function?
    5·1 answer
  • Nathan is planning to ride his bike for 24 minutes if he rides at a rate of 5 miles per hour how far will it travel
    11·1 answer
  • Write in scientific notation: 0.00065
    7·1 answer
  • HELP DUE IN 10 MINUTES
    13·1 answer
  • The three inside angles (A B and C) of a right angled triangle are in the ratio 7:18:11
    13·1 answer
  • Solve two and one-third times two and three fourths (Will give brainliest)
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!