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Yanka [14]
3 years ago
14

I don't need help doing work I just need someone to check my answers for me.

Mathematics
2 answers:
andre [41]3 years ago
7 0

Yes i'm sure you're correct

drek231 [11]3 years ago
3 0
Yes, I think this is correct
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Please help!!! Which equation is in point-slope form and is depicted by the line in this graph?
Blizzard [7]
Y-y1=m(x-x1)
a point on the line is (x1,y1) and the slope is m

so
slope between (x1,y1) and (x2,y2) is (y2-y1)/(x2-x1)
so

points (-2,3) and (3,0)
slope is (0-3)/(3-(-2))=-3/(3+2)=-3/5
a point is (3,0) Or (-2,3)

so it could be
y-0=-3/5(x-3) or y-3=-3/5(x-(-2)) which is equal to y-3=-3/5(x+2)
that's the answer
B is answer
7 0
3 years ago
Simplify m(2+n-m)+3(3n+m^2-1)
mina [271]

Answer:2m^2+mn+2m+9n-3

Step-by-step explanation:

m(2+n-m)+3(3n+m^2-1)

open brackets

2m+mn-m^2+9n+3m^2-3

Collect like terms

3m^2-m^2+mn+2m+9n-3

2m^2+mn+2m+9n-3

4 0
3 years ago
1½ hours is how much in seconds??​
Ne4ueva [31]

3/2=1.5 hour=5400 second

Hope it helps you

8 0
3 years ago
Read 2 more answers
A colony of ants has 50,000 members. Sione thinks the colony will grow at a rate of 3.1% each hour. How many ants should he expe
Lubov Fominskaja [6]
3.1% of 50,000 is 1,550 if I were to multiply that by 10 that would equal 15,500 add that to 50,000 it equals 65,500
5 0
3 years ago
Read 2 more answers
There are 50 tree frogs in the botanical gardens at t = 0. The population increases exponentially by 20% per year.
Elodia [21]

Answer:

A)

f(t) = 50 * 1.2^t

B)

f(3) = 50 * 1.2^3 = 86.4 tree frogs

C)

f(t) = 50 * 1.2^t = 200 --> t = LN(200/50)/LN(1.2) = 7.604 years

D)

f(-1) = 50 * 1.2^(-1) = 41.67 tree frogs

3 0
3 years ago
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