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jarptica [38.1K]
4 years ago
5

Which of the following graphs is described by the function given below? y = 2x^2 + 8x +3

Mathematics
2 answers:
Masja [62]4 years ago
8 0

Answer:

A

Step-by-step explanation:

y = 2x² + 8x + 3

Complete the square:

y = 2(x² + 4x) + 3

y = 2(x² + 4x + 4) + 3 - 2(4)

y = 2(x + 2)² - 5

So the vertex is at (-2, -5).  The graph must be Graph A.

Alekssandra [29.7K]4 years ago
3 0

Answer:

The answer is Graph (A.)

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The sum of 9/26 and -4/13
ohaa [14]

Answer:

Step-by-step explanation:

Ok, well the first thing you need to do is make -4/13 have the same numerator as 9/26. Thankfully, 26 is a multiple of 13, so that step is easy:

-4/13 -> -8/26

Then you can add them together with ease.

9/26 + -8/26 = 1/26

Adding a negative number to anything is the same thing as subtracting.

8 0
3 years ago
A silver bracelet has mass of 52.45g and volume of 5cm³ find density of silver braclet​
wel

Answer:

10490 kg/m³ or 10.49 g/cm³

Step-by-step explanation:

Density = mass/volume

mass = 52.45g ÷ 1000 = 0.05245kg

Volume = 5 ÷ (100)³ = 5/1000000

Density = 0.05245 ÷ 5/1000000

= 0.05245 × 1000000/5

= 10490 kg/m³

Or, 52.45/5 = 10.49 g/cm³

3 0
4 years ago
A box contains only sliver tokens and gold tokens. Clarisse reached into the bag without looking, got 60 tokens, and found that
k0ka [10]
The experimental probability in this problem is given by the total amount of silver coins Clarisse pulled over the total amount of coins Clarisse pulled.

She pulled 48 silver coins out of the 60 she pulled in total. Set up a fraction:

\frac{48}{60}


This fraction can be simplified by dividing both the numerator and denominator by 12:

\frac{48}{60} \div \frac{12}{12} = \frac{4}{5}

The experimental probability of pulling another silver token is 4/5.
3 0
3 years ago
What is the gcf of 99 and 132?
jek_recluse [69]
<span>The Greates Common Factor (GCF) is:   3 x 11 = 33</span>
8 0
3 years ago
What is the slope of the line with the equation 4 + 2y = 3x
sveticcg [70]
Y= 3/2x -2
slope is 3/2 or 1.5
4 0
4 years ago
Read 2 more answers
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