2 years ago

9x -1 = 80 A -10 B 9 C 10 D -9

Mathematics

1 answer:

Fittoniya [83]2 years ago

5 0

Answer:

The answer is B!

Step-by-step explanation:

Add 1 to both sides, then divide 80 by 9!

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Determine the maximum or minimum value of the following quadratic function. LaTeX: f\left(x\right)=-3\left(x+5\right)^2-1f ( x )

Genrish500 [490]

Answer:

Step-by-step explanation:

$y=-3(x^2+10x+25)-1\\ \\ y=-3x^2-30x-76\\ \\ dy=-6x-30\\ \\ d^2y=-6\\ \\ \text{Since the second derivative is always negative, when the first derivative is equal to zero the function will be at a global maximum.}\\ \\ dy=0=-6x-30\\ \\ x=-5\\ \\ f(-5)=-1\\ \\ \text{So the global maximum occurs at the point (-5,-1)$

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2 years ago

Which one is equivalent what’s the work that goes with it? i’m very confused

Elenna [48]

Answer:

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Step-by-step explanation:

r - 0.2r

= 1r - 0.2r ← factor out r from each term

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1 year ago

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Nataliya [291]

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2 years ago

Light shines through window what is the area of a trapezoid shaped region created by the light

bogdanovich [222]

Answer:

16 ft²

Step-by-step explanation:

The complete question is attached.

A trapezoid is a quadrilateral (has four sides) with one a parallel base. The base angles and the diagonals of an isosceles trapezoid are equal.

The area of a trapezoid = [(sum of the parallel bases) / 2] * height of the trapezoid.

Given that the parallel bases are 3 ft and 5 ft, while the height of the trapezoid is 4 ft. Hence:

The area of a trapezoid = [(3 + 5)/2] * 4

The area of a trapezoid = 16 ft²

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2 years ago

Find the value of x that makes A||B <2= 2x+10 <4=4x+80

lawyer [7]

Answer:

Step-by-step explanation:

this is the correct answer

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2 years ago