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vazorg [7]
3 years ago
6

(6-2i)+(-7+i)imaginary numbers simplify

Mathematics
1 answer:
Anastasy [175]3 years ago
8 0
The answer to this is -1 - i
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What is the value of the rational expression x+4 over 10-x when x=5
7nadin3 [17]
<span> x+4              5+4               9
--------  =    ------------ =   --------
 10-x            10 - 5             5</span>
8 0
3 years ago
Please help
dimulka [17.4K]
20 tickets each will have to brought with fast pass so that the total cost is equal to that of each other


Entry fee for The Great Adventure theme park = $15

Charge for fast pass at each ride = $1.50

Entry fee for The Big Thicket amusement park = $15

Charge for fast pass at each ride = $1.00

Let the number of ride tickets purchased with Fast pass = x

As per question statement, the total cost at each will be equal to that of each other.
Writing in the equation form, we get:
$15 + $1.50 = $25 + $1.00 x

Therefore, 20 tickets each will have to bought with fast pass so that the total cost is equal to that of each other.
7 0
3 years ago
Read 2 more answers
An airplane makes a 400-mile trip against a head wind in 4 hours. The return trip takes 2.5 hours, the wind now being a tall win
tangare [24]

Answer:

v_p=130\ miles/h

v_w=30\ miles/h

Step-by-step explanation:

Lets call v_p the the still-air speed of the plane and v_w the speed of the wind. On the first part the speed of the plane relative to the ground will be v_1=v_p-v_w, and on the second part it will be v_2=v_p+v_w.

We know that the distance d=400 miles on the first and second parts are the same, so by the definition of velocity we will have:

v_1=\frac{d}{t1}

v_2=\frac{d}{t2}

Or:

v_p-v_w=\frac{d}{t1}

v_p+v_w=\frac{d}{t2}

Adding both equations:

(v_p-v_w)+(v_p+v_w)=2v_p=\frac{d}{t1}+\frac{d}{t2}

v_p=\frac{1}{2}(\frac{d}{t1}+\frac{d}{t2})

Which for our values is:

v_p=\frac{1}{2}(\frac{400\ miles}{4h}+\frac{400\ miles}{2.5h})=130\ miles/h

If instead of adding, we substact, we would have:

(v_p+v_w)-(v_p-v_w)=2v_w=\frac{d}{t2}-\frac{d}{t1}

v_w=\frac{1}{2}(\frac{d}{t2}-\frac{d}{t1})

Which for our values is:

v_w=\frac{1}{2}(\frac{400\ miles}{2.5h}-\frac{400\ miles}{4h})=30\ miles/h

6 0
4 years ago
Pls help ASAP I’ll brainlest pls
iVinArrow [24]

Answer:

i think d

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
4.7 kg = __<br><br><br><br><br><br> What equals 4.7 kg =____g
Flauer [41]

Answer:

If your asking what 4.7kg is to grams then it is 4700g

5 0
3 years ago
Read 2 more answers
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