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olga2289 [7]
3 years ago
7

Someone pls help me with this​

Mathematics
1 answer:
katrin2010 [14]3 years ago
5 0
I need help with it too!
You might be interested in
Please help with algebra
Elodia [21]
Let x = small number
y=large numebr


x+y = 90
y-4x=15

substitute
we get:

x=21
y=90-21 = 69
5 0
3 years ago
(secx)dy/dx=e^(y+sinx), please help me solve the differential equation. Thanks :)
nalin [4]
First, you must know these formula  d(e^f(x) = f'(x)e^x dx, e^a+b=e^a.e^b, and d(sinx) = cosxdx, secx = 1/ cosx

(secx)dy/dx=e^(y+sinx), implies  <span>dy/dx=cosx .e^(y+sinx), and then 
</span>dy=cosx .e^(y+sinx).dx, integdy=integ(cosx .e^(y+sinx).dx, equivalent of 
integdy=integ(cosx .e^y.e^sinx)dx, integdy=e^y.integ.(cosx e^sinx)dx, but we know that   d(e^sinx) =cosx e^sinx dx,
so integ.d(e^sinx) =integ.cosx e^sinx dx,
and e^sinx + C=integ.cosx e^sinxdx
 finally, integdy=e^y.integ.(cosx e^sinx)dx=e^2. (e^sinx) +C
the answer is 
y = e^2. (e^sinx) +C, you can check this answer to calculate dy/dx
7 0
3 years ago
Read 2 more answers
PLEASE HELP FAST!!
Oduvanchick [21]

Answer:

x = 4

Step-by-step explanation:

10 = -1/4 x + 11

10 - 11 = -1/4 x

-1 = - 1/4 x

x = 4

7 0
3 years ago
5(y+2)=4(x-3) Can someone help me find the slope of this line pls
Oxana [17]

Answer:

4/5 is the slope.

6 0
2 years ago
COUNT NUMERICAL VALUE OF SLOPE IN GRAPH | 25 POINTS I WILL MARKET BRAINLEIST | PLEASE HELP ASAP
bulgar [2K]

Answer:

m = 2

Step-by-step explanation:

The number is positive because the line goes upward 2 units and right 1 unit.

4 0
2 years ago
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