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ANEK [815]
3 years ago
7

- 16 = -4(-5+ i) Please help i can’t fail this test

Mathematics
2 answers:
Simora [160]3 years ago
7 0

<em>Answer: i=9</em>

<em />

<em>Step-by-step explanation:</em>

<em>-16=-4(-5+i)</em>

<em>-16=20-4i</em>

<em>-20 -20</em>

<em>-36=-4i</em>

<em>Divide by -4 </em>

<em>i=9</em>

Roman55 [17]3 years ago
6 0

Answer:

i=9

Step-by-step explanation:

-16=-4( -5 +i)

-16= 20 -4i

-20      -20

_____________

-36=-4i

-36/-4 = 9

i= 9

Hope this Helps! Good luck at your test!

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EleoNora [17]

The number of customers who visited more on first day = ( 5 x - 2)

<h2>248 more people visited on the first day. </h2>

Step-by-step explanation:

The total number of customers visiting on first day  = (6 x - 3)

The total number of customers visiting on second day  = (x - 1)

The difference in the number of customers

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= (6x  - 3) - (x- 1)  = 6 x - 3 - x +  1  = 5 x - 2

So, the number of customers who visited more on first day = ( 5 x - 2)

Now, when x  = 50, ( 5 x - 2) = (5 (50) - 2)  = 250 - 2  = 248

Hence, 248 more people visited on the first day.

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3 years ago
How many protons, neutrons, and electrons does 92U238 have
Anna35 [415]

Answer:

92 92 238

Step-by-step explanation: 92 because a proton and electron have the  same and first is 92 and well 238

7 0
4 years ago
Val rented a bicycle while she was on vacation. She paid a flat rental fee of f dollars, plus $8.50 each day. The total cost at
damaskus [11]

The question is incomplete. Here is the complete question:

Val rented a bicycle while she was on vacation. She paid a flat rental fee of f dollars, plus $8.50 each day. The total cost at the end of her vacation was t dollars. Let d represent the number of days Val rented the bicycle. Write an equation representing the total cost at the end of her vacation.

Answer:

t=f+8.5d

Step-by-step explanation:

Given:

Flat rental fee = f

Variable fee per day = $8.50

Total cost at the end vacation = t

Number of days of her vacation = d

Using unitary method, we can find the variable fee for 'd' days.

1 day variable fee = $8.50

Therefore, 'd' days variable fee = 8.50d

Total cost at the end of her vacation can be obtained by adding the fixed rental fee and the variable fee obtained for the given number of days.

Now, total cost is given as:

Total cost = Flat rental fee + Variable fee

Substituting all the variables and framing above in the form of an equation, we get:

t=f+8.5d

Therefore, the equation representing the total cost at the end of her vacation is t=f+8.5d

7 0
3 years ago
Enter the solution (x, y) to the system of equations shown<br> x = 2.5<br> 5y + 2x = -10
Llana [10]

Answer:

x=2.5, y=-5. (2.5, -5).

Step-by-step explanation:

5y+2(2.5)=-10

5y+5=-10

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y=-15/5

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7 0
3 years ago
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