It's different because they have 2 different numbers<span />
Answer:
4
Step-by-step explanation:
The services which Washington counties provide residents are: A, C, D and E.
<h3>What are Washington counties?</h3>
Washington counties can be defined as the thirty-nine (39) counties that were created within the state of Washington in the United States of America.
In the United States of America, some of the services which Washington counties provide residents include the following:
- They administer public safety.
- They handle daily municipal operations.
- They hold regular elections.
Read more on Washington counties here: brainly.com/question/26003701
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Answer:
=
−
7
3
=
−
7
Step-by-step explanation:
<u>
</u>
<u>=
</u>
<u>−
</u>
<u>
</u>
<u>±
</u>
<u>
</u>
<u>2
</u>
<u>−
</u>
<u>4
</u>
<u>
</u>
<u>
</u>
<u>√
</u>
<u>2
</u>
<u>
</u>
<u>x={b}}^{2}-4{a}}{2{a}}}
</u>
<u>x=2a−b±b2−4ac
</u>
<u>Once in standard form, identify a, b, and c from the original equation and plug them into the quadratic formula.
</u>
<u>3
</u>
<u>
</u>
<u>2
</u>
<u>+
</u>
<u>2
</u>
<u>8
</u>
<u>
</u>
<u>+
</u>
<u>4
</u>
<u>9
</u>
<u>=
</u>
<u>0
</u>
<u>3x^{2}+28x+49=0
</u>
<u>3x2+28x+49=0
</u>
<u>
</u>
<u>=
</u>
<u>3
</u>
<u>a={3}}
</u>
<u>a=3
</u>
<u>
</u>
<u>=
</u>
<u>2
</u>
<u>8
</u>
<u>b={28}}
</u>
<u>b=28
</u>
<u>
</u>
<u>=
</u>
<u>4
</u>
<u>9
</u>
<u>c={129}{49}}
</u>
<u>c=49
</u>
<u>
</u>
<u>=
</u>
<u>−
</u>
<u>2
</u>
<u>8
</u>
<u>±
</u>
<u>2
</u>
<u>8
</u>
<u>2
</u>
<u>−
</u>
<u>4
</u>
<u>⋅
</u>
<u>3
</u>
<u>⋅
</u>
<u>4
</u>
<u>9
</u>
<u>√
</u>
<u>2
</u>
<u>⋅
</u>
<u>3
</u>
<u>=
</u>
<u>−
</u>
<u>2
</u>
<u>8
</u>
<u>±
</u>
<u>1
</u>
<u>4 over
</u>
<u>6
</u>
<u>=
</u>
<u>−
</u>
<u>2
</u>
<u>8
</u>
<u>+
</u>
<u>1
</u>
<u>4
</u>
<u>6
</u>
<u>x={-28+14}{6}
</u>
<u>x=6−28+14
</u>
<u>
</u>
<u>=
</u>
<u>−
</u>
<u>2
</u>
<u>8
</u>
<u>−
</u>
<u>1
</u>
<u>4
</u>
<u>=
</u>
<u>−
</u>
<u>7
</u>
<u>3
</u>
<u>x=-{7}{3}
</u>
<u>x=−37
</u>
<u>
</u>
<u>=
</u>
<u>−
</u>
<u>7
</u>
<u>=
</u>
<u>−
</u>
<u>7
</u>
<u>3
</u>
<u>
</u>
<u>=
</u>
<u>−
</u>
<u>7</u>
In mathematics, a real number is a value of a continuous quantity that can represent a distance along a line. The adjective real in this context was introduced in the 17th century by René Descartes, who distinguished between real and imaginary roots of polynomials.
