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2 years ago

Two choises! Pick the right one!

Mathematics

2 answers:

BARSIC [14]2 years ago

7 0

The answer is 3 if i calculated it correctly

slava [35]2 years ago

3 0

Answer:

The function has a maximum value of 3 that occurs at x = 1.

Step-by-step explanation:

First, note that the leading coefficient is negative. This means that the parabola will curve downwards. Because of this, the function has a maximum. The maximum value will simply be the vertex.

The formula for the x-coordinate of the vertex is -b/2a.

a=-3, b=6, c=0

Plug in the numbers:

x=-(6)/2(-3)

=-6/-6=1

Now, plug 1 back into the original function:

-3x^2+6x

-3(1)^2+6(1)

=-3(1)+6

=-3+6

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Joan waters her plants each day with gallons of water. With a new irrigation system in place, she uses gallons of water each day

vampirchik [111]

Answer:

$172\frac{1}{2}$ gallons

Step-by-step explanation:

Considering she waters her plants with 25 1/2 gallons i.e 51/2

and with the new system, she does it with 19 3/4 i.e 79/4

taking the difference:

$\frac{51}{2} - \frac{70}{4}$ = $\frac{23}{4}$ gallons per day

For 30 days:

30 x $\frac{23}{4}$ = 172.5 or $172\frac{1}{2}$ gallons

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3 years ago

Rasheed works in a department store and is paid an hourly wage of $12.00. In addition, he is paid a 6-percent commission on all

soldi70 [24.7K]

The total salary was $656.64 including his hourly wage and his commission.
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8 0

3 years ago

Determine if the following are in proportion :

KATRIN_1 [288]

Step-by-step explanation:

The given numbers are : 32 , 48 , 140 , 120

First number is 32

Second number is 48

Third number is 140

Fourth number is 120

First number/second number :

$\dfrac{N_1}{N_2}=\dfrac{32}{48}\\\\=\dfrac{2}{3}\ ....(1)$