Directions: Determine whether each pair of triangles are congruent by ASA or AAS. If there is not enough information to determin
e whether the triangles are congruent, choose NEI. Will give brainliest
1 answer:
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Answer:
Step-by-step explanation:
First find the equations of the lines, then fill in the proper inequality sign. The upper line has a y-intercept of 1 and a slope of 1/2, so the equation, in slope-intercept form is
Since the shading is below the line, the inequality sign is less than or equal to. The inequality, then, is
But the solutions are in standard form, so let's do that:
AND they do not like to lead with negatives, apparently, so let's change the signs and the way the inequality is facing, as well:
Let's do the sae with the lower line. The equation, in slope-intercept form is
since the slope is 3/2 and the y-intercept is -3. Now, since the shading is above the line, the inequality is greater than or equal to:
In standard form:
and not leading with a negative gives us
Those 2 solutions are in choice B, I do believe.
The ODE has characteristic equation
with roots , and hence the characteristic solution
For the particular solution, assume an ansatz of , with derivatives
Substituting these into the ODE gives
so that the particular solution is
Given: ABCD ∥gram,
BK ⊥ AD , AB ⊥ BD
AB=6, AK=3
Find: m∠A, BK
To proof
as given BK ⊥ AD
thus ΔABK is a right triangle.
thus by using the pythagoras theorem
we have
AB² = BK² + AK²
BK² = AB ²- AK²
= 6² - 3²
= 36 - 9
= 27
Hence
BK = <u> unit</u>
Now find the value m∠A
by using the trignometric function
FORMULA
cosA =
cosA =
=
m∠A = 60°
hence proved
