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Vikentia [17]
3 years ago
13

What is the product of 4n^+3=7n?

Mathematics
1 answer:
Inessa [10]3 years ago
4 0
So if you solve for n
4n^2+3=7n
make into trinomial
subtract 7n from both sides
4n^2-7n+3=0
if we can factor this, then we can asume that the factors are equal to zero becase if
xy=0 then assume x and/or y=0 so

to factor an equation in ax^2+bx+c where a is greater than 1 then
b=t+z
a times c=t times z
to factor 4n^2-7n+3 you do
4 times 3=12
what 2 numbers multiply to get 12 and add to get -7
the numbers are -3 and -4 so
split up the -7
4n^2-4n-3n+3
group
(4n^2-4n)+(-3n+3)
undistribute
(4n)(n-1)+(-3)(n-1)
reverse distributive property
ab+ac=a(b+c)
(4n-3)(n-1)=0
set each to zero
4n-3=0
add 3 to both sides
4n=3
divide both sides by 4
n=3/4

n-1=0
add 1 to both sides
n=1

n=3/4 or 1
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Sign the following values a=5 b=10 c=15
a_sh-v [17]

Answer:

a=5,b=10,c=15

1)(a+b)-5(c+a)

=(5+10)-5(15+5)

=(15)-5(20)

=15-5(20)

=10(20)

=200

2)(10×15)10(5×2)

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3)(a-b)+(a+b)

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=10

4)(2ab-45)+a

=(2×5×10-45)+5

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7 0
2 years ago
Solve the system 2x-2y=10 4x-5y=17
stiv31 [10]
Multiply 2x-2y=10 by 2,
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pluck it in
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move the 6 to the right
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divide
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8 0
3 years ago
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The radius of a circle is 4.53 inches what is the length of the circumference of the circle ?
gtnhenbr [62]

Answer:

28.46in

Step-by-step explanation:

C=2πr

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C≈28.46in

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2 years ago
When Scott woke up this morning, the temperature was 2°F. The temperature fell 5° by noon. Scott used this number line to model
I am Lyosha [343]
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