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2 answers:
Answer:
The correct answer is all are rationals.
Step-by-step explanation:
Numbers that cannot be written as fraction of integers are irrationals.
145.25 is rational as it can be expressed as a fraction.
^2√64 is rational as this √64 is equal to 8.
-22 is a rational as integers are a subset of rationals only.
0 is a rational number.
√121 is rational as the value of √121 is 11 and 11 is rational.
0.6⁻ is rational as this can be expressed as fraction .
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Answer:
See explanation
Step-by-step explanation:
Assuming the given polynomial is
We then rewrite in decreasing powers of u, to get:
The leading term is
The leading coefficient is the coefficient of the leading term.
The leading coefficient is -7.
Answer:
Step-by-step explanation:
A vector perpendicular to the plane ax+by+cz+d=0 is of the form .
So, a vector perpendicular to the plane x − y + 2z = 7 is .
The parametric equations of a line through the point and parallel to the vector
are as follows:
Put and
Therefore,
xy-plane:
Put z = 0 ⇒ t = -2 ⇒x = - 1 , y = 6
So, at point (-1,6,0)
yz-plane:
Put x = 0 ⇒ t = -1 ⇒ y = 5, z =2
So, at point (0,5,2)
xz-plane:
Put y = 0 ⇒ t = 4 ⇒ x = 5, z = 12
So, at point (5,0,12)