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3 years ago

What is the product of (3a 2)(4a2 – 2a 9)?12a3 − 2a 1812a3 6a 912a3 − 6a2 23a 1812a3 2a2 23a 18

2 answers:

5 0

To get the product of (3a + 2) and (4a² - 2a + 9), we can apply the rules of distribution over multiplication and have 3a(4a² - 2a + 9) + 2(4a² - 2a + 9) 12a³ - 6a² + 27a + 8a² - 4a + 18 Adding like terms of the same degree, we can simplify it into 12a³ + 2a² + 23a + 18 Therefore, the answer is D.

liq [111]3 years ago

3 0

Answer: D. 12a^3 + 2a^2 + 23a + 18

Step-by-step explanation: This answer is 100% correct for edge.nuity.

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What is 20% of 80?

Gala2k [10]

Answer:

Step-by-step explanation:

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2 years ago

What is the ratio of the intensities of an earthquake PP wave passing through the Earth and detected at two points 19 kmkm and 4

Tamiku [17]

Answer:

The ratio of the intensities is roughly 6:1.

Step-by-step explanation:

The intensity I() of an earthquake wave is given by:

$I = \frac{P}{4\pi d^{2}}$

where P: is the power ans d: is the distance.

Hence, the ratio of the intensities of an earthquake wave passing through the Earth and detected at two points 19 km and 46 km from the source is:

$\frac{I_{1}}{I_{2}} = \frac{P/4\pi d_{1}^{2}}{P/4\pi d_{2}^{2}}$

where I₁ = P/4πd₁², d₁=19 km, I₁ = P/4πd₂² and d₂=46 km

$\frac{I_{1}}{I_{2}} = \frac{d_{2}^{2}}{d_{1}^{2}}$

$\frac{I_{1}}{I_{2}} = \frac{46 km^{2}}{19 km^{2}}$

$\frac{I_{1}}{I_{2}} = 5.9:1$

Therefore, the ratio of the intensities is roughly 6:1.

I hope it helps you!

3 0

2 years ago

Select the correct answer from each drop-down menu. A teacher is making a history test composed of the same number of multiple-c

GaryK [48]

Answer:

Step-by-step explanation:idbdhides by

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2 years ago

Given that f(x) = x^2 - 11x + 18 and g(x) = x-9, find f(x) + g(x)

liberstina [14]

Answer:

f(x) + g(x) = x² - 10x + 9

General Formulas and Concepts:

Algebra I

Combining Like Terms

Step-by-step explanation:

Step 1: Define

f(x) = x² - 11x + 18

g(x) = x - 9

Step 2: Find f(x) + g(x)

Substitute: f(x) + g(x) = x² - 11x + 18 + x - 9
Combine like terms (x): f(x) + g(x) = x² - 10x + 9

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2 years ago

the measure of two angles of a triangle are 35 and 45 what is the measure of the third angle of the triangle

loris [4]

If you pull the edges of the right angle down it makes a straight line.

Therefore, the angles in a triangle add up to 180°

So, 35 + 45 = 80

Then, 180 - 80 = 100

The third angle = 100°

4 0

2 years ago

Read 2 more answers