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scoundrel [369]
3 years ago
6

Which shows 42^2 − 38^2 being evaluated using the difference of perfect squares method?

Mathematics
2 answers:
Viktor [21]3 years ago
4 0

Answer:The correct answer is D

Step-by-step explanation:

Basile [38]3 years ago
3 0

Answer:

D

Step-by-step explanation:

a²  - b² ← is a difference of squares and is factored in general as

(a + b)(a - b)

42² - 38² ← is a difference of squares and factors as

42² - 38² = (42 + 38)(42 - 38) = 80(4) = 320 → D

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In Drosophila, straight wings are dominant to curved wings (c), smooth eyes are dominant to sparkling eyes (spa), and tan body i
irina [24]

Answer:

Step-by-step explanation:

In this case, the offspring will have two dominant traits and one recessive trait. If One of the Alleles for a traight is dominant, then the expressed traight will be dominant, assuming there is no mixing of traits. So for any offspring with these traits, they can have one or both domiant alleles for the wing shape and body color traits, but they must have both recessive alleles for the eye trait. Using a punnett square, you can find the number, which happens to be 9/64.

7 0
4 years ago
Suppose a scientist reported the following data regarding the presence bacteria during the first four hours of testing for a new
OlgaM077 [116]

The recursive geometric sequence that models this situation is:

f(n) = 0.9f(n-1)

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<h3>What is a geometric sequence?</h3>

A geometric sequence is a sequence in which the result of the division of consecutive terms is always the same, called common ratio q.

It can be represented by a recursive sequence as follows:

f(n) = qf(n-1)

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f(n) = 0.9f(n-1)

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More can be learned about geometric sequences at brainly.com/question/11847927

7 0
2 years ago
Help!!! Thank you<br> Xxxx
Effectus [21]

Answer: D

Step-by-step explanation:

First I would write out the points of the x and y intercepts and then I would write out an equation in slope-intercept form (y=mx+b). From there I would move my terms accordingly to make it into standard form and compare my answer! Hope this helped!

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Answer:

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Step-by-step explanation:

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3 years ago
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gogolik [260]
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