−|9| = −9 True or False

Mathematics

2 answers:

Westkost [7]3 years ago

8 0

Answer:

false because the absolute value of -9 would be 9 not negativ 9

Ket [755]3 years ago

7 0

Answer:

false

Step-by-step explanation:

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Sindhu’s present age is thrice of Shilpa. If Shilpa’s age three years ago was x, then Sindhu’s present age is

Rudiy27

Answer:

I think "D"- 3(x + 3)

Step-by-step explanation:

as 3 years ago - x

so present age of shilpa - x +3

~~~~~~~~~~~~~

present age of sindhu - 3 (x+3)

i guess : )

7 0

2 years ago

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Last math question.

siniylev [52]

Answer:

Step-by-step explanation:

$\text{The slope-intercept form of an equation of a line:}\\\\y=mx+b\\\\m-\text{slope}\\b-\text{y-intercept}\\\\\text{Let}\\\\k:y=m_1x+b_1\\l:y=m_2x+b_2\\\\k\ \perp\ l\iff m_1m_2=-1\to m_2=-\dfrac{1}{m_1}\\\\k\ ||\ l\iff m_1=m_2\\=========================$

$\text{We have}\ y=5x+2\to m_1=5\\\\\text{therefore}\ m_2=5.\\\\\text{Put the value of the slope and the coordinates of the given point (-2, 1)}\\\text{to the equation of a line:}\\\\1=5(-2)+b\\1=-10+b\qquad\text{add 10 to both sides}\\1+10=-10+10+b\\11=b\to b=11\\\\\text{Finally:}\\\\y=5x+11$