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Triss [41]
3 years ago
7

Simplify -11j+16-22j-27+5j

Mathematics
2 answers:
myrzilka [38]3 years ago
8 0

Combine like terms

Your answer will be -28j - 11

lys-0071 [83]3 years ago
5 0

16 23
—— - ——
5 15
Step 2 :

16

16 23
—— - ——
5 15
:
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Using the geometric mean and Pythagorean theorem, calculate the values of the missing sides. Round your answers to the thousandt
Pachacha [2.7K]

Answer:

a = 9.849

b = 20.25

c = 491.03

Step-by-step explanation:

By using Pythagoras theorem in the right triangle BDC,

(Hypotenuse)² = (Leg 1)² + (Leg 2)²

BC² = BD² + DC²

a² = 9² + 4²

a = \sqrt{(81+16)}

a = \sqrt{97}

a = 9.8489

a ≈ 9.849 units

By mean proportional theorem,

\frac{\text{DC}}{\text{BD}}=\frac{\text{BD}}{\text{AD}}

AD × DC = BD²

b × 4 = 9²

b = \frac{81}{4}

b = 20.25 units

BY Pythagoras theorem in ΔADB,

AB² = AD² + BD²

c² = b² + 9²

c² = (20.25)² + 9²

c² = 410.0625 + 81

c = 491.0625

c = 491. 063 units

6 0
3 years ago
What is the product written in scientific notation? (5.91×10−3)⋅(8.7×1010)
romanna [79]

(5.91×10^−3)⋅(8.7×10^10)

= (5.91 x 8.7) x 10^(- 3 + 10)

= 51.417 x 10^7

= 5.1417 x 10^8

Answer is

B. 5.1417 × 10^8



4 0
3 years ago
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Solve for angle B in right triangle ABC. <br><br> I got 53, is it right?
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Yup its 53 Degrees you got it right :)

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