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3 years ago

Hepppppppppppppppppppppppppppppp

Mathematics

1 answer:

vfiekz [6]3 years ago

7 0

You follow the rules for the quadratic formula, where

x= (-b +- √(b²-4ac) )/2a

Filling a, b and c in yields

x = (8 +- √(64-164) ) / 2 =>

x = (8 - √-100)/2 or x = (4 + √-100)/2

Well, √-100 = 10i, so then you simplify to the last answer, D:

x = 4-5i or x=4+5i

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Which ordered pair is a solution the the following system?

muminat

Answer:

d is the correct answer .

Step-by-step explanation:

I just guessed

4 0

3 years ago

Suppose you deposit $1,200 into a bank account. The account earns yearly simple interest at a rate of 1 3/4%. How many years wil

igor_vitrenko [27]

Answer:

6 years

Step-by-step explanation:

1.75% of 1,200 = 21

so 1 year= 21

21+21= 42 2 years

42+21=63 3 years

63+21=84 4 years

81+21=105 5 years

105+21=126 6 years

Or you can do

21x6=126 so it has to equal 6 years

4 0

2 years ago

THIS IS DUE IN 10 MIN!!

AVprozaik [17]

The discount is 50-14 = $36

% discount = (36/50)*100 = 72%

6 0

2 years ago

out of a group of zebras 6/5 times the square root of the number of zebras are playing on the shore of the tank remaining six ar

MatroZZZ [7]

Answer:

Step-by-step explanation:

(6/5)√x = x - 6

(36/25)x = x² - 12x + 36

0 = x² - 13.44x + 36

x = (13.44 ± √(13.44² - 4(1)(36))) / (2(1))

x = (13.44 ± 6.052569702...) / 2

x = 3.69371... zebras

x = 9.74628... zebras

In either case we have some odd fractions of zebras hanging around. This makes me highly suspect that the question is misreported

3 0

2 years ago

Help ASAP I’ll mark you as brainlister PLEASE!!’

Alex17521 [72]

Answer:

A = 76.8 yd²

Step-by-step explanation:

The area (A) of a regular polygon is calculated as

A = $\frac{1}{2}$ pa ( p is the perimeter and a the apothem )

Here p = 8 × 4 = 32 yd and a = 4.8 yd , then

A = $\frac{1}{2}$ × 32 × 4.8 = 16 × 4.8 = 76.8 yd²

8 0

2 years ago