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3 years ago

If no grouping symbols or exponents are in an expression, then do _____ first.

Mathematics

1 answer:

anygoal [31]3 years ago

5 0

Multiplication or division i believe

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umka2103 [35]

Answer:

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Step-by-step explanation:

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3 years ago

Write a linear function f with the given values f(0) = -5 f(4) = -3

Maslowich

Answer:

f(x)=1/2x-5

Step-by-step explanation:

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frutty [35]

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3 years ago

Use the quadratic formula to solve x2 + 9x + 10 = 0.<br> What are the solutions to the equation?

vampirchik [111]

Answer:

$\large\boxed{x=\dfrac{-9\pm\sqrt{41}}{2}}$

Step-by-step explanation:

$\text{The quadratic formula of}$

$ax^2+bx+c=0$

$\text{If}\ b^2-4a0,\ \text{then the equation has two solutions}\ x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}\\=========================================$

$\text{We have}\ x^2+9x+10=0\\\\a=1,\ b=9,\ c=10\\\\\text{substitute:}\\\\b^2-4ac=9^2-4(1)(10)=81-40=41>0\qquad _{\text{two solutions}}\\\\\sqrt{b^2-4ac}=\sqrt{41}\\\\x=\dfrac{-9\pm\sqrt{41}}{2(1)}=\dfrac{-9\pm\sqrt{41}}{2}$

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3 years ago

Read 2 more answers