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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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3 years ago
Please help me this will mark brainiest thx I will appreciate it thank you
Savatey [412]

Answer:

z=40 degrees

x=90 degrees

y=40 degrees

Step-by-step explanation:

To solve z you know that 50+90+z= 180 degrees. So z equals 40. To solve x you subtract 90 from 180 to get 90 degrees. To solve you add 50+x+y. You know that x= 90. You would add the angles together to get 180 degrees. 50+90=140 and 180-140 equals 40. Sorry if i'm wrong.

6 0
3 years ago
A line of fit might be defined as
iVinArrow [24]

Answer:

a line that might best estimate the data and be used for predicting values.

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Step-by-step explanation:

A line of fit might be defined as;

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3 0
3 years ago
Read 2 more answers
PLZ HELP ASAP ON 3 A B AND C
viktelen [127]
A: From the graph, car B was traveling faster.

Because the line of car B is more steep than the line of car A.

B:
The lines cross at (2,80), this means that the two cars were traveling at the same distance (80 miles) at the same time (2 hours).

C:
Since the line passes through the points (0,0) and (2,80)

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8 0
3 years ago
A, B & C lie on a straight line.
VikaD [51]

Answer:

Step-by-step explanation:

A, B & C lie on a straight line.

D, C & E lie on a different straight line.

Ah, this is 2 intersecting lines

angles

y

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106+64 = 170

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if you still cannot visualize what is intersecting line mean, then see the file below

4 0
2 years ago
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