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marysya [2.9K]
3 years ago
15

If line AD is a tangent to circle B at point C, and m∠ABC = 55º, what is the measure of ∠BAD?

Mathematics
1 answer:
alexandr1967 [171]3 years ago
4 0
None of those.  ∠BAD = 180º - 90º - 55º = 35º, because ABC is a right triangle.

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The measures of two angles of a triangle are 23 degrees,and 67 degrees.is the triangle acute,right,or obtuse?
Margaret [11]
Trick question — it’s a right triangle.  Here’s why:
23 + 67 = 90.  All triangles have an interior angle sum of 180.  180 - 90 = 90.  90 degrees is right, and therefore, having a right angle, this is a right triangle.
7 0
3 years ago
Please answer and explain how you received that answer, these are the three problems I had trouble with out of 18
Varvara68 [4.7K]
9) x.14 = 6.26 ==> 14x=156 ==> x=11.1

12) OAB = Right Triangle : (27+24)² = 24² + AB² (Pythagoras)
 ==> 51² =24² + AB²  ==> 2,601 = 576 + AB² ==> AB² = 2,601 - 576 = 2,025
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Sorry I can't read the last page
5 0
3 years ago
<img src="https://tex.z-dn.net/?f=5x%20%7B%7D%5E%7B2%7D%20%20%2B%202x%20-%203%20-%20px%20-%20p" id="TexFormula1" title="5x {}^{2
Jlenok [28]

Answer:

5x² + 2x - 3 - px - p

= 5x² + 5x - 3x - 3 - p(x + 1)

= 5x(x + 1) - 3(x + 1) - p(x + 1)

= (x + 1)(5x - 3 - p)

5 0
2 years ago
Third-degree, with zeros of -3,-1, and 2, and passes through the point (3,6).
Y_Kistochka [10]

Answer:

Below.

Step-by-step explanation:

In factor form this is:

f(x) = a(x + 3)(x + 1)(x - 2)     where a is a number to be found.

As it passes through (3, 6) we have:

6 = a(3 + 3)(3 + 1)(3 - 2)

24a = 6

a = 1/4.

So f(x) =  1/4(x + 3)(x + 1)(x - 2)

In general form this is:

f(x) = 1/4 x^3 + 1/2 x^2 - 5/4 x - 3/2

3 0
2 years ago
Order from least to greatest 4.5 3.9 4.258 3.75 4.256
djyliett [7]
3.75, 3.9, 4.256, 4.258, 4.5
7 0
3 years ago
Read 2 more answers
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