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AveGali [126]
3 years ago
10

How can x2+3x+1=2x2+2x+3 be set up as a system of equations

Mathematics
1 answer:
Vesna [10]3 years ago
6 0
For this case we can write the system of equations as two equations with two unknowns.
 We then define the following unknowns:
 incognitas: x and y.
 We write the system of equations:
 y = x2 + 3x + 1
 y = 2x2 + 2x + 3
 Answer:
 
y = x2 + 3x + 1
 
y = 2x2 + 2x + 3
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Find the percent of change. 20 increased to 40
ladessa [460]

Answer:

100% increase

Step-by-step explanation:

Calculate percentage change

from V1 = 20 to V2 = 40

(V2−V1)|V1|×100

=(40−20)|20|×100

=2020×100

=1×100

=100%change

=100%increase

6 0
3 years ago
which table below represents a non proportional relationship give at least two reasons the justify your choice
Gennadij [26K]

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7 0
2 years ago
Rewrite (2x+1)(x-2) using the distributive property then simplify
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3 0
3 years ago
What is the scientific notation for this number: .0765 <br> show how you got yoru answer
Daniel [21]
Hey there!!

Scientific notation for 0.0765 is

... 7.65 × 10^-2

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5 0
3 years ago
Read 2 more answers
Noah currently has an account balance of $2,976.45. He opened the account 11 years ago with a deposit of $1,963.45. If the inter
Vesnalui [34]
What we know:
Acct. balance A (11)= $2,976.45
Pricipal=$1,963.45
Compounded (n)=quarterly (4)
rate=r
Compound interest formula: A (t)=p (1+r/n)^nt

What we need toi find:
If the interest compounds quarterly, what is the interest rate on the account? Find r.
A (t)=p (1+r/n)^nt
2976.45=1963.45 (1+r/4)^(4×11)
2976.45=1963.45 (1+r/4)^44
2976.45/1963.45=1963.45/1963.45 (1+r/4)^44
1.5159=(1+r/4)^44
(1.5159)^(1/44)=((1+r/4)^44)^(1/44)

1.0095=1+r/4
1.0095-1=1-1+r/4
.0095=r/4
.0095(4)=r/4 (4)
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Rate = 3.8%


5 0
3 years ago
Read 2 more answers
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