3 years ago

A student factors 15c2 + c – 28 to the following.

Mathematics

2 answers:

Mamont248 [21]3 years ago

7 0

Answer:

C. The expression is not equivalent, but it is completely factored.

dmitriy555 [2]3 years ago

7 0

Answer:

Step-by-step explanation:

when we factored the expression 15c2 + c – 28

= 15c2 + 21c-20c – 28

=3c(5c+7c)-4(5c+7c)

=(3c-4)(5c+7c)

hence the given expression is not equivalent, but it is completely factored.

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YW bisects <XYZ. m<XYW=(2x+7) and m<XYZ= (6x-8). find the value of the X and the measure of <XYZ

Alina [70]

See Image first.

Finding X
2. 2(2x+7) = 6x-8
3. 4x + 14 = 6x -8
4. 22 = 2x
5. x = 11

Finding m<XYW
2x + 7
2 ( 11) +7
29 degrees

Finding m<XYZ
2(2x+7)
4x + 14
4 * 11 + 14
58 degrees

CHECK:
6x -8
6 (11) - 8
58 degrees (CHECK!)

ANSWER: x= 11
m<XYZ = 58 degrees