Simplify. 5 • 2 • (

(3 + 8i) + (7 -- 2i) - (6 - 5i) AO 4+1 B.O4 + 117 c. 16 +1 D.O4 + 1143

Lubov Fominskaja [6]

Answer: (3 + 8i) + (7 -- 2i) - (6 - 5i) = 4 + 15i

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Simplify the expression.

4 + 15i

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3 0

2 years ago

The distance travelled in (m) by a ball dropped from a height are 128/9,32/3,8,6,...

Allushta [10]

Answer: it will trave 56.89 meters before coming to rest.

Step-by-step explanation:

This is a geometric progression since the distance travelled (height) by the ball is reducing by a constant ratio, r. Since the number of times that the ball will bounce is infinite, then we would apply the formula for determining the sum of the terms in a geometric progression to infinity which is expressed as

S = a/(1 - r)

where

S = sum of the distance travelled by the ball

a = initial distance or height of the ball

r = common ratio

From the information given,

a = 128/9

r = (32/3)/(128/9) = 0.75

Therefore,

S = (128/9)/(1 - 0.75) = 56.89 meters

7 0

3 years ago

Predict the next three numbers in pattern 7,9,11,13

Tomtit [17]

15,17,19 thats easy just keep adding two if you want to predict the next numbers

7 0

3 years ago

Subject is Trigonometry. Solve for X.

sashaice [31]

Tan inverse 28/19 is the answer

3 0

3 years ago

Read 2 more answers

Find the surface area of the composite solid.

Scilla [17]

Answer with Step-by-step explanation:

The given figure is a cuboid.

We know that surface area(S) of cuboid is given by:

S=2(lb+bh+hl)

Where l is the length, b is the breath and h is the height

Here, l=12 mm

b=6 mm

and h=(7+2) mm=9 mm

Surface Area= 2(12×6+6×9+9×12)

=2(72+54+108)

= 2×234

= 468 mm²

Hence, Correct option is:

C. 468 mm squared

4 0

3 years ago

Simplify. 5 • 2 • (–4) + 6 ÷ 2