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atroni [7]
3 years ago
12

What are the coordinates of the vertex for f(x)=3x^2+6x+3?

Mathematics
1 answer:
Natasha2012 [34]3 years ago
5 0
F(x) = 3x² + 6x + 3 = 3(x² + 2x + 1) = 3(x + 1)² + 0

used: (a + b)² = a² + 2ab + b²

The vertex form: y = a(x - h)² + k
the coordinates of vertex: (h; k)

Therefore, your answer: (-1; 0).
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Find the area of wyz A. 18 cm B 36 cm C.72 cm D 144
Oliga [24]

Answer:

36 cm^2

Step-by-step explanation:

area of triangle = length * height * 1/2

6 * 12 * 1/2 = 72 * 1/2 = 36

6 0
3 years ago
The grocery store where Ms. Maple works pays her $6.50 per hour. Any time she works more than 40 hours per week, she is paid tim
Charra [1.4K]

Answer:

$289.25

Step-by-step explanation:

First we should find out how much Ms. Maple would make in a week without overtime.

6.5 x 40 = 260

Now, let's figure out how much she makes per hour in overtime.

6.5 x 1.5 = 9.75

Now add up the hours of overtime.

9.75 x 3 = 29.25

Now we add the weekly wage to the overtime

260 + 29.25 = 289.25

For 40 hours of regular time at $6.50/hr and 3 hours of overtime at $9.75/hr, Ms. Maple will make $289.25 for the week.

7 0
3 years ago
What is the standered form of the number shown in the calculator display? <br> 3.82e+7
ella [17]

the answer is 38200000

6 0
3 years ago
If you use your office computer 40 hours per week, and do not unplug the computer when it is not in use, how much carbon dioxide
dangina [55]
If you use a laptop:  9.25; a desktop with a CRT monitor:  55.51; a desktop with an LCD monitor:  46.26.

A laptop that is plugged up and turned off uses 0.001kw/hr of energy.  Each kwh of energy produces, on average, 1.39 lbs of CO2.  There are 24*7=168 hours in the week; subtract the 40 hour work week from this and we have 128 hours a week for 52 weeks a year:
0.001*128*52=6.656*1.39=9.25.

A desktop that is plugged up and turned off uses 0.004kw/hr of energy.  A CRT monitor uses 0.002 kw/hr when turned off.  This means we have:
(0.004*128*52*1.39)+(0.002*128*52*1.39)=55.51.

For a desktop and an LCD monitor, which uses 0.001 kw/hr of energy, we have:
(0.004*128*52*139)+(0.001*128*52*1.39)=46.26.
6 0
3 years ago
Josh currently bench presses 150lbs. He increases that amount by 10% for a month for 3 months. About how much can he bench press
dimaraw [331]
He increased 30% so that means he can bench press 180lbs
7 0
3 years ago
Read 2 more answers
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