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il63 [147K]
2 years ago
11

Find the cosine of ∠I.

Mathematics
1 answer:
denis-greek [22]2 years ago
7 0

Answer:

\sqrt{\frac{3}{5} } .

Step-by-step explanation:

1) cos(I)=IH/IG;

2) \ IG=\sqrt{IH^2+GH^2} =10;

3) \ cos(I)=\frac{2\sqrt{15}}{10}=\frac{\sqrt{15}}{5}=\sqrt{\frac{3}{5}}.

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Step-by-step explanation:

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3 years ago
Which has no real roots?
Alexxandr [17]

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3 years ago
PLEASE HELP ME! Images below & I give Brainliest
neonofarm [45]

Answer:

Graph C with the green dots.

Step-by-step explanation:

y = 0.5x + 5 is a linear equation, so we can rule out A because it is not straight.

5 represents the y-intercept, so we rule out B because that graph doesn't intercept the y-axis at (0,5).

Graph C represents a straight line that passes through (0, 5) & has a 0.5 slope, so that is our answer.

Hope this helps. :0)

4 0
3 years ago
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devlian [24]

Answer:

B is (7,-4) C is (7,-2) D is (5,0)

Step-by-step explanation:

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5 0
3 years ago
Find the missing coefficient (4d—4)(3d—2)=12d^2+ []d+8
sergij07 [2.7K]
<span>(4d-4)(3d-2)=12d^2 + []d + 8

Using FOIL method:
4d x 3d = 12d^2
4d x  -2 = -8d
-4 x 3d = -12d
-4 x -2 = 8

Adding common terms, we have:
-8d + -12d = -20 d

The missing coefficient is -20.</span>
8 0
3 years ago
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