I think it is not true because all sides are triangle except the one on the bottom is a square
The two numbers are -4 and 27.
Step-by-step explanation:
Let,
The two numbers be x and y
According to given statement;
xy = -108 Eqn 1
x+y=23 Eqn 2
From Eqn 2;
x = 23-y
Putting in Eqn 1
Factorizing the equation;
Either,
y+4=0, => y=-4
Or,
y-27=0 => y=27
Now,
Putting y=-4 in Eqn 2
Putting y = 27 in Eqn 2
The two numbers are -4 and 27.
Keywords: linear equation, substitution method
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Answer:
https://youtu.be/wk9CSsDDppw
Basically
54 times 7
what's the answer
distributive says
a(b+c)=ab+ac
we can split 54 times 7 into
we know that 54=50+4
so we can do 7 times 54 as
7(50+4)=7(50)+7(4)=350+28=378
she saved $378 after 7 months
Answer:
51 milligrams
Step-by-step explanation:
Exponential growth or decay can be modeled by the equation ...
y = a·b^(x/c)
where 'a' is the initial value, 'b' is the "growth factor", and 'c' is the time period over which that growth factor applies. The time period units for 'c' and x need to be the same.
In this problem, we're told the initial value is a = 190 mg, and the value decays to 95 mg in 19 hours. This tells us the "growth factor" is ...
b = 95/190 = 1/2
c = 19 hours
Then, for x in hours the remaining amount can be modeled by ...
y = 190·(1/2)^(x/19)
__
After 36 hours, we have x=36, so the remaining amount is ...
y = 190·(1/2)^(36/19) ≈ 51.095 . . . . milligrams
About 51 mg will remain after 36 hours.
