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tatuchka [14]
2 years ago
6

Find the derivative of the function y = / - 5 - 3x. dy/dx =

Mathematics
2 answers:
jeyben [28]2 years ago
6 0
-3 just here to reassure you
Katena32 [7]2 years ago
3 0

Answer:

-3

Step-by-step explanation:

use the power rule to solve this

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Determine if line AB is tangent to the circle.
galina1969 [7]

Answer:

<em>Is a tangent</em>

Step-by-step explanation:

<em>* Great question by the way *</em>

~ By definition, a tangent to circle is a straight line, presently perpendicular to a radius if one. In this case tangent AB should be perpendicular to the radius. If we were to call the center O, we would say AB should be perpendicular to OA. ~

1. Now let us say at the moment that AB is a tangent. If that is so, it should be that m∠A = 90 degrees ( ° ), provided AB is ⊥ to OA by definition.

2. Now the triangle ABO is a right triangle, and with that is should be that Pythagorean Theorem is applied. This can help us prove if AB is a tangent or not. If Pythagorean Theorem is not applicable it would mean ABO is not a right angle triangle, that AB is not ⊥ to OA, and thus can't be a tangent.

3. Let us say x ⇒ side OA, and that side BO = 9 + 8 + 17:

AB^2 + OA^2  =  BO^2,

15^2 + x^2 = 17^2,

<em>x = 8</em>

4. Now there are two radii present, OA is only one of them. As radii are ≅, OA = other radii, 8 = 8

5. This proves that Pythagorean Theorem is applicable, that ABO is a right triangle, that m∠A = 90°, and that by definition <em>AB is a tangent</em>

7 0
3 years ago
lina is covering a wall in her attic with wallpaper. The wall is trapezoid-shaped with top and bottom bases of 14 feet and 20 fe
eduard
136ft2 I did the work but I don't know if I understood the question correctly but maybe it is right lol
8 0
3 years ago
How do i solve this problem?
Pani-rosa [81]
Area of a triangle = 1/2 x base x height

using the given information: area = 40 and base = 20

you now have 40 = 1/2 x 20 x height

divide both sides by 1/2

80 = 20 x height

divide both sides by 20

height = 80 / 20

height = 4 in.


6 0
3 years ago
Find an equation for the nth Term of a geometric sequence where the second and fifth terms or -8 and 512, respectively
zhenek [66]

Answer:

32

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Kathryn bought five CDs. A week later half of all her CDs were lost during a move. There are now only 16 CDs left. With how many
yan [13]
She started off with 11
5 0
3 years ago
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