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Vesna [10]
3 years ago
8

What is the degree of the sin of .19

Mathematics
1 answer:
Tpy6a [65]3 years ago
6 0
Sin(19)

Use your calculator.

sin(19) = 0.3255681545
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The first term of a gemotetric sequence is -15 and the common ratio is 6 What is the twelfth term of the sequence
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Answer:

Step-by-step explanation:

a₁₂ = a₁r¹²⁻¹ = -15×6¹¹

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natta225 [31]

Answer:

im good at math and the answer is 2

Step-by-step explanation:

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G(x) = -3х (х^2– 36) (х – 6)<br> Find all real zeros of the function
Daniel [21]
Aren’t there only 2? Because of the squared exponent? I’m not fully sure
6 0
3 years ago
B) T is due north of C, calculate the bearing of B from C
choli [55]

Answer:

(a) 52°

(b) 322°

Step-by-step explanation:

(a) The details of the circle are;

The diameter of the circle = AOC

The center of the circle = Point O

The point the line AT cuts the circle = Point B

The point the tangent PT touches the circle = Point C

Angle ∠COB = 76°

We have that angle AOB and angle COB are supplementary angles, therefore;

∠AOB + ∠COB = 180°

∠AOB = 180° - ∠COB

∴ ∠AOB = 180° - 76° = 104°

∠AOB = 104°

OA = OB = The radius of the circle

Therefore, ΔAOB  =  An isosceles triangle

∠OAB = ∠OBA by base angles of an isosceles triangle are equal

∠AOB + ∠OAB + ∠OBA = 180° by angle summation property

∴ ∠AOB + ∠OAB + ∠OBA = ∠AOB + ∠OAB + ∠OAB = ∠AOB + 2×∠OAB = 180°

∠OAB = (180° - ∠AOB)/2

∴ ∠OAB = (180° - 104°)/2 = 38°

∠TAC = ∠OAB = 38° by reflexive property

AOC is perpendicular to tangent PT at point C, by tangent to a circle property, therefore;

∠TCA = 90° and ΔTCA = A right triangle

∠TAC + ∠ATC + ∠TCA = 180° by angle sum property

∠ATC = 180° - (∠TAC + ∠TCA)

∴ ∠ATC = 180° - (38° + 90°) = 52°

Angle ATC = 52°

(b) In ΔABC, ∠ABC = Angle subtended by the diameter = 90°

∴ ΔABC = A right triangle

∠ABC and ∠TBC are supplementary angles, therefore;

∠ABC + ∠TBC = 180°

∠TBC = 180° - ∠ABC

∴ ∠TBC = 180° - 90° = 90°

∠TCB = 180° - (∠TBC + ∠ATC)

∴ ∠TCB = 180° - (90° + 52°) = 38°

The bearing of B from C = (360° - 38°) = 322°.

7 0
2 years ago
I will make Brailiest, DO IT STEP BY STEP PLZ! Mrs. Fisher jogs every morning. On average, it takes her 7 ½ minutes to run one m
Kazeer [188]

Answer:

22 1/2

Step-by-step explanation: 7 1/2 x3 = 22 1/2

proof 7 1/2 +7 1/2 +7 1/2 = 22 1/2

6 0
2 years ago
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