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Norma-Jean [14]
3 years ago
9

HEEEEEEEEEELLLLLLLLLLP

Mathematics
1 answer:
antoniya [11.8K]3 years ago
3 0
The answer is B, d=8.75h
It’s 8.75h because Michael earns 8.75 per hour the key word is “per hour”
You might be interested in
Who is correct jo or alex
REY [17]

Neither Alex nor Jo are correct, because surface area is a 2-dimensional quantity, so it would be given in just square units, not linear nor cubic.

So the answer is D

8 0
3 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
Y=3x+2<br><br> please help me lolz
Elanso [62]

Answer:

Slope (M): 3

Y-Int: 2

Standard Form: -3x+y=2

can go through points: (5,1), (-1, -1),...

3 0
2 years ago
Please help!
Rus_ich [418]

Answer:

4

Step-by-step explanation:

I = PRT

252 = (900)(.07)(T)

252 = (63)(T)

divide 63 from both sides

4 = T

3 0
3 years ago
Find the lateral area of this cone.<br> Leave your answer in terms of pi <br> 15cm<br> 8cm
Serhud [2]

Answer:

lateral surface area of cone =

\pi rl

where, l = slant height, and r = radius

then

l.a = \pi \times 8 \times 17

l.a = 136\pi

4 0
2 years ago
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