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Luda [366]
3 years ago
12

1. -10+4 = 2. -7+11= 3. -8+7=

Mathematics
2 answers:
Nataly [62]3 years ago
7 0

1. -10 + 4 = -6

2. -7 + 11 = 4

3. -8 + 7 = -1

Setler [38]3 years ago
5 0

1. -6

2. 4

2. -1

The positive numbers will out rule the negative number. It's sort of like placing blocks over another set of blocks. :)

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Given a square with two vertices of one side located at (-5, -3) and (-5, 12), in square units what is its area?
Ray Of Light [21]

The side length is 12 - -3 = 15 so the area is 15 squared = 225.


4 0
3 years ago
You are designing an aquarium that is to have a tank holding 225,000 gallons of water. The tank will be 100 feet long and 20 fee
ziro4ka [17]
So hmmm notice the picture below

thus   \bf \textit{volume of a rectangular prism}\\\\
V=lwh\qquad 
\begin{cases}
l=length\\
w=width\\
h=height\\
----------\\
l=100\\
w=20\\
V=225,000
\end{cases}\implies 225,000=(100)(20)h

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5 0
3 years ago
What two numbers add up to 6 and multiply to 12?
GuDViN [60]
Erm

x+y=6
xy=12


x+y=6
y=6-x
sub back

xy=12
x(6-x)=12
6x-x^2=12
x^2-6x=-12
x^2-6x+12=0
quadratic formula
for
ax²+bx+c=0
x= \frac{-b+/- \sqrt{b^2-4ac} }{2a}

for
x²-6x+12=0
a=1
b=-6
c=12
and remember that √-1=i

x= \frac{-(-6)+/- \sqrt{(-6)^2-4(1)(12)} }{2(1)}
x= \frac{6+/- \sqrt{36-48} }{2}
x= \frac{6+/- \sqrt{-12} }{2}
x= \frac{6+/- (\sqrt{-1})(\sqrt{12}) }{2}
x= \frac{6+/- (i)(2\sqrt{3}) }{2}
x= \frac{6+/- 2i\sqrt{3} }{2}
x=3+/-i√3

the numbers are 3+i√3 and 3-i√3
no real numbers tho
7 0
3 years ago
Ms. Mary picks up Ed from art class every 3rd day and Mary from music class every 5th day. What is the first day MS. Mary will n
Ira Lisetskai [31]
The 15th day because 3x5=15  5x3=15
7 0
3 years ago
Read 2 more answers
Find the future value and interest earned if $8906.54 is invested for 9 years at 6% compounded continuously 
dalvyx [7]
To find the future value the formula is
A=p e^rt
A future value?
P present value 8906.54
R interest rate 0.06
T time 9 years
E constant
A=8,906.54×e^(0.06×9)
A=15,283.68

To find the interest earned the formula is
I=A-p
I=15,283.68−8,906.54
I=6,377.14
4 0
3 years ago
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