3 years ago

20 points for each question

Mathematics

2 answers:

pychu [463]3 years ago

5 0

He should receive $5.75

d1i1m1o1n [39]3 years ago

4 0

Answer:

the answer is -78.12 i did the quiz.

Step-by-step explanation:

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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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3 years ago

Caroline bought movie tickets for three Children and a bucket of popcorn for $9.50. If she spent a total of $35.75, how much was

meriva

Answer:

$8.08

Step-by-step explanation:

First subtract 9.50 from 35.75 to get

24.25

Then divide 24.25 by 3 to get

Approx $8.08

7 0

3 years ago

4x + 3y = 8<br>2x - y=9

Alex17521 [72]

Step-by-step explanation:

Follow my steps. Sorry im bit untidy .

Follow these 1°,2°,3°

8 0

3 years ago

Amelia enjoys running and often runs at a steady pace. At this pace, Amelia can run 50 yards in 12 seconds. What is Amelia's uni

valentinak56 [21]

Answer:

4.16

Step-by-step explanation:

50/12

7 0

2 years ago

Write an inequality, in slope-intercept form, for the graph below. If necessary,

d1i1m1o1n [39]

Answer:not 100 % sure but I can write a slope intercept form equation, but not an inequality. I would need a picture of the graph to write an inequality.

First find slope: (y2 - y1)/(x2 - x1) Slope is 3

Choose a point then use point slope form y - y1 = m(x - x1) It is y - 1 = 3(x - 1)

Now simplify:

y - 1 = 3(x - 1)

y - 1 = 3x - 3

y = 3x - 2

Step-by-step explanation:

8 0

3 years ago