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NemiM [27]
3 years ago
9

What number should be added to both sides of the equation to complete the square?

Mathematics
1 answer:
Studentka2010 [4]3 years ago
5 0

Answer:

16

Step-by-step explanation:

Given

x² + 8x = 4

To complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(4)x + 16 = 4 + 16, thus

(x + 4)² = 20 ← equivalent equation

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your answer is 216 cm

Step-by-step explanation:

multiply your side length by 36 since its a cube.

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3 years ago
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Paul filled pint containers with 440 cups of water. How many pint containers did Paul need?
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What size do you know it can be 5 gal. or 1 gal.
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3 years ago
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BOSE
Lina20 [59]

Answer:

a = 1 ; b = -8 ; c = -5

Step-by-step explanation:

f(p) = p² - 8p  -5

a = co-efficient of p² = 1

b = co-efficient of p = -8

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3 years ago
oakwood has a mass of 2.85 kilograms and a volume of 4100 cubic centimeters. determine the density of oak in grams per cubic cen
bogdanovich [222]

Answer:

The density of oak is <u>0.695</u> grams per cubic centimeter.

Step-by-step explanation:

Given:

Oakwood has a mass of 2.85 kilograms and a volume of 4100 cubic centimeters.

Now, to find the density of oak in grams per cubic centimeter.

Mass (m) = 2.85 kilograms.

So, using conversion factor we convert into grams:

2.85\times 1000=2850\ grams.

Volume (v) = 4100 cubic centimeters.

Now, to get the density by using formula:

Density=\frac{mass}{volume} \\Density=\frac{m}{v}

Density=\frac{2850}{4100}

Density=0.695\ grams\ per\ cubic\ centimeter.

Therefore, the density of oak is 0.695 in grams per cubic centimeter.

6 0
3 years ago
A bag contains 4 purple beads and 3 green beads. A bead is drawn and then replaced before drawing the second bead. Find the prob
Alex17521 [72]

Answer:

9/49

Step-by-step explanation:

4 purple beads and 3 green beads= 7 beads

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Replace the bead

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P( green) = green = total = 3/7

P( green , replace, green) = 3/7 * 3/7 = 9/49

6 0
2 years ago
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