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Dmitry [639]
3 years ago
7

PLEASE help me:( i'm desperate (and dumb): factor 2n^(3)+7n^(2)-2n-7

Mathematics
1 answer:
Diano4ka-milaya [45]3 years ago
4 0

x {}^{2} (2x + 7) - (2x + 7) \\ (2x + 7)(x { }^{2}  - 1) \\ (2x  + 7)(x - 1)(x + 1)
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Tonya and Pearl each completed a separate proof to show that alternate interior angles AKL and FLK are congruent. Who completed
zalisa [80]

Answer:

Tonya proof is correct
and Pearl proof is wrong

Step-by-step explanation:

AKL and GKB are obviously congruent. But the reasons given are different, One of the justification is Vertical Angles Theorem, and the other is Adjacent Angles.

But the correct justification is the Vertical Angles Theorem, because the angles are Vertically away from each other, or the angles are at opposite sides of each other. Which is when Vertical Angles Theorem is applied.
Making Tonya correct since that was the answer he given.

The definition of Adjacent Angles is incorrect, this Theorem is used when the angles are Adjacent to each other. When the angles are on the same line as the other angle, is when the definition of Adjacent Angles is applied. Not in this situation

8 0
2 years ago
(03.01 LC)
vampirchik [111]

Answer:

√7 units, √98 units

Step-by-step explanation:

Pythagorean theorem

a^2+b^2=c^2. So 9+b^2=16. So b^2=7. So b=√7

a^2+b^2=c^2. SO 49+49=c^2. So 98=c^2. So c=√98.

4 0
3 years ago
Read 2 more answers
What are the domain and range of the function
atroni [7]

Answer:

Domain (-∞,∞)

Range (0, ∞)

Step-by-step explanation:

The domain of a function is always the set of all real numbers therefore the domain is going to be (-∞,∞). The range is (0, ∞) because 0 is one of the outputs for the function

3 0
3 years ago
Angles of a polygon <br><br>thanks ​
tino4ka555 [31]

Answer:

900 degrees

Step-by-step explanation:

Use the formula for interior angles

Sum = (n - 2) x 180

Sum = (7 - 2) x 180

Sum = 5 x 180

Sum = 900 degrees

If this answer is correct, please make me Brainliest!

3 0
3 years ago
Pls6ssssssssssssssssssssssssssss
max2010maxim [7]

Answer: 220

Step-by-step explanation:

176 dived by 4 is 44, 44 times 5 is 220 your welcome

8 0
3 years ago
Read 2 more answers
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