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3 years ago

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To solve the equation 2−5(3+4x)=2x+7,2-5(3+4x)=2x+7, Miranda's first step was to write 2−15−20x=2x+72-15-20x=2x+7. Which propert

y did Miranda use in her first step?

2 answers:

Leokris [45]3 years ago

7 0

distributive property of multiplication

Alexeev081 [22]3 years ago

3 0

Answer:

distributive property

Step-by-step explanation:

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Use a benchmark fraction to compare 7 10 ths and 5 12 ths. Explain how you found the answer

Oksanka [162]

I dont know what benchmark means but <em />I hope this works<em>. </em>First, multiply 7 10ths by the denominator of 12. 7/10 *12= 84/120.
Then multiply 5 12ths by 10. 5/12 *10=50/120. So, 7/10 > 5/12

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3 years ago

The radius of a circle is 3cm. What is the area of the circle? Use 3.14 for pie.

vekshin1

Answer: 28.26 square cm

Step-by-step explanation:

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1 year ago

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Step-by-step explanation:

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2 years ago

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konstantin123 [22]

For the equation F(x) = ax² + bx + c we have:

maximum value if a<0
minimum value if a>0

F(x) = -3x² + 18x + 3 ⇒ a = -3, b = 18

a < 0 ⇒ the function has a maximum value

Quadratic function has the maximum value (or minimum) at vertex of its parabola.

The maximum value is k at x=h where: $h=\dfrac{-b}{2a}$ and k = F(h)

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Therefore:

<h3> The function has a maximum value of 30 at x = 3</h3>

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