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kaheart [24]
3 years ago
10

The formula for the area of a

Mathematics
2 answers:
tamaranim1 [39]3 years ago
8 0

Answer:

true

Step-by-step explanation:

Sonja [21]3 years ago
7 0

Answer:

False

Step-by-step explanation:

because for area the formula is A=h b/2

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*Will mark brainest!* Determine whether the guven equations are parallel, perpendicular or neither.
ioda

These are parallel lines

3 0
2 years ago
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
A recipe calls for 3 3/4 cups of flour and Jen put 2 1/3 in a bowl already how much more flour does she need
erma4kov [3.2K]

Answer:

1 5/15

Step-by-step explanation:


3 0
3 years ago
How can you write 23/3 as a mixed number?
Illusion [34]
23/3 = 7 2/3 <======
3 0
2 years ago
-4( -3 )+ (6-2)/64 = ?
Kisachek [45]

Answer:

12.0625

Step-by-step explanation:

Im not sure but im pretty sure it's correct

8 0
3 years ago
Read 2 more answers
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