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Nana76 [90]
3 years ago
8

Solve for t. d=−16t^2 +4t

Mathematics
1 answer:
AleksAgata [21]3 years ago
3 0

Answer:

C option is correct.

t = 8 +- √ 1− 4 d

Step-by-step explanation:

d=−16t^2 +4t

t= (1+ √ 1− 4 d) /  8

 t = (1 − √ 1 − 4 d  ) / 8

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At a local Brownsville play production, 560 tickets were sold. The ticket prices varied on the seating arrangements and cost $8,
BigorU [14]

Answer:

Number of $8 tickets sold  = 210

Number of $10 tickets sold  = 280

Number of $12 tickets sold  = 70

Step-by-step explanation:

The number of ticket sold is 560  tickets .

Total number of ticket sold = 560 tickets

The prices varies as $8, $10 and $12.

The total income from the ticket sold = $5320

Let

number of  $8 ticket sold = a

number of  $10 ticket sold = b

number of  $12 ticket sold = c

a + b = 7c

Therefore,

8a + 10b + 12c = 5320

a + b + c = 560

7c + c = 560

8c = 560

divide both sides by 8

c = 560/8

c = 70

Insert the value of c in the equations below

8a + 10b + 12c = 5320

8a + 10b + 12(70) = 5320

8a + 10b + 840 = 5320

8a + 10b = 5320 - 840

8a + 10b = 4480...........(i)

a + b + c = 560

a + b + 70 = 560

a + b = 560 - 70

a + b = 490...............(ii)

8a + 10b = 4480...........(i)

a + b = 490...............(ii)

a = 490 - b

insert the value of a in equation(i)

8(490 - b) + 10b = 4480

3920 - 8b + 10b = 4480

3920 + 2b = 4480

2b = 4480 - 3920

2b = 560

b = 560/2

b = 280

insert the value of b in equation (ii)

a + b = 490...............(ii)

a + 280 = 490

a = 490 - 280

a = 210

Number of $8 tickets sold  = 210

Number of $10 tickets sold  = 280

Number of $12 tickets sold  = 70

4 0
3 years ago
Please help I’ll give brainliest
Tanzania [10]

Answer:

it answer would be 50% coz we take out percentage from 100.

Step-by-step explanation:

first add 17% and 33% it would be 50%

then subtract 50%from 100%

answer would be 50%

8 0
3 years ago
Read 2 more answers
Find the degree of the polynomial: <br> 8xyz^7-8x^3yz^4+2x^3y^3
Nuetrik [128]

Answer:

The degree of the polynomial is 9

Step-by-step explanation:

Recall that the degree of a polynomial is given by the degree of its leading term (the term with largest degree). Recall as well that the degree of a term is the maximum number of variables that appear in it.

So, let's examine each of the terms in the given polynomial, and count the number of variables they contain to find their individual degrees. then pick the one with maximum degree, and that its degree would give the actual degree of the entire polynomial.

1) term  8\,x\,y\,z^7  contains one variable "x" , one variable "y", and seven variables "z", so a total of nine. Then its degree is: 9

2) term -8\,x^3\,y\,z^4 contains three variables "x" , one variable "y", and four variables "z", so a total of eight. Then its degree is: 8

3) term 2\,x^3\,y^3 contains three variables "x" and three variables "y", so a total of six variables. Then its degree is : 6

Therefore, the leading term of this polynomial is the first one, and it gives its degree to the entire polynomial. the polynomial is of degree 9.

7 0
3 years ago
A shoe store uses 60% markup for all of the shoes it sells. What would be the selling price of a pair of shoes that has a wholes
balu736 [363]

Step-by-step explanation:

60+55 equal 65 that my explain

3 0
3 years ago
1<br> Solve for x ( and V)<br> 2<br> Show Your Work<br> 14<br> 48<br> X
LiRa [457]

Use pythagoras theorem

x² = 48² + 14²

x² = 2500

x = √2500

x = 50

4 0
3 years ago
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