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AleksandrR [38]
3 years ago
15

The figure shows two semicircles with centers K & M. The semicircles are tangent to each other at point J, and (QN) ⃗ is tan

gent to both circles at N & O. If KL=JP=12, what is OQ?

Mathematics
1 answer:
kodGreya [7K]3 years ago
8 0

Answer: OQ = 34

Step-by-step explanation:

Please find the attached files for the solution

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The zeros of function d are -3 and 8. Which expression could be a factor of function d?
marysya [2.9K]
X+3 or x-8
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3 years ago
X, Y and Z form the vertices of a triangle. XY = 12.4m, XZ = 10.4m and YZ = 8.7m. Find the angle ∠ YXZ rounded to 1 DP.
sweet-ann [11.9K]

Answer:

43.8°

Step-by-step explanation:

Applying,

Cosine rule,

From the diagram attached,

x² = y²+z²-2yxcos∅.................... Equation 1

where ∅ = ∠YXZ

Given: x = 8.7 m, y = 10.4 m, z = 12.4 m

Substitute these values  into equation 1

8.7² = 10.4²+12.4²-[2×10.4×12.4cos∅]

75.69 = (108.16+153.76)-(257.92cos∅)

75.69 = 261.92-257.92cos∅

collect like terms

257.92cos∅ = 261.92-75.69

257.92cos∅ = 186.23

Divide both sides by the coefficient of cos∅

cos∅ = 186.23/257.92

cos∅ = 0.722

Find the cos⁻¹ of both side.

∅ = cos⁻¹(0.7220)

∅ = 43.78°

∅ = 43.8°

6 0
2 years ago
Can someone get the answer and explain i will give brainliest.
uranmaximum [27]
Answer: (a^2bc)^2 for the first one

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An article is bought and sold with a profit of 25% of selling price.find the profit percent​
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Answer:33 1/3%

Step-by-step explanation:

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2 years ago
I need help ASAP please
galina1969 [7]
I honestly don’t know






Sorry sweety
6 0
3 years ago
Read 2 more answers
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