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Gennadij [26K]
3 years ago
8

EXPERTs/ACE/GENIUS/TRUSTED HELPERs QUICK!!

Mathematics
1 answer:
Pavel [41]3 years ago
5 0

X 0 y was 30

 at x 12 y is about 55

12-0 = 12

55-30 = 25

25/12 = 2.08 inches per year average

 so answer should be D


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Answer:

the plane would fall and crash at 150mph

Step-by-step explanation:

8 0
3 years ago
Solve the equation for the specified variable <br> Y=cd-8, for c
melomori [17]
Y=cd-8
Add 8 to each side giving you
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Divide by d on each side giving you

C=(y+8)/d
8 0
3 years ago
Initially, there are 40 grams of A and 50 grams of B, and for each gram of B, 2 grams of A is used. It is observed that 15 grams
hram777 [196]

Answer:

X(16)=25.71grams

Step-by-step explanation:

let X(t) denote grams of C formed in  t mins.

For X grams of C we have:

\frac{2}{3}Xg of A and \frac{1}{3}Xg of B

Amounts of A,B remaining at any given time is expressed as:

40-\frac{2}{3}Xg of A and  50-\frac{1}{3}Xg  of B

Rate at which C is formed satisfies:

\frac{dX}{dt} \infty(40-\frac{2}{3}X)(50-\frac{1}{3}X)->\frac{dX}{dt}=k(90-X)\\\therefore \frac{dX}{(90-X)^2}=kdt->\int{\frac{dX}{(90-X)^2}} \, =\int {k} \, dt  \\\therefore \frac{1}{90-X}=kt+c->90-X=\frac{1}{kt+c}\\\\X(t)=90-\frac{1}{kt+c}

Apply the initial condition,X(0)=0 ,to the expression above

0=90-\frac{1}{c} \ \ ->c=\frac{1}{90}\\\therefore\\X(t)=90-\frac{1}{kt+\frac{1}{90}} \ \ ->X(t)=90-\frac{90}{90kt+c}

Now at X(8)=15:

15=90-\frac{90}{90\times 8k+1}  \ ->75=\frac{90}{720k+1}\\k=0.0002778

Substitute  in X(t) to get

X(t)=90-\frac{90}{0.0002778t\times 90+1}\\X(t)=90-\frac{90}{0.25t+1}\\But \ t=16\\\therefore X(t)=90-\frac{90}{0.025\times16+1}\\X(t)=25.71

5 0
3 years ago
PLEASE HELP! I WILL GIVE BRAINLIEST!<br> A<br> B<br> C<br> D
ra1l [238]

Answer:

C

Step-by-step explanation:

it goes in 0.1

hope it helps

8 0
3 years ago
Read 2 more answers
Tory plans to enter the path at mile marker 1 and hike for 4 miles. Tory is a beginner hiker, so he wants to choose the path tha
Sunny_sXe [5.5K]
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The vertical change from 1 to 5 is considerably less for g(x) than for f(x).

Tory should choose path ...
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