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2 years ago

What are the solutions of 2x^2+3x=-8

1 answer:

5 0

The equation given above is written here below with all the terms transposed to only one side of the equation.
2x² + 3x + 8 = 0
The quadratic formula used for the determination of the roots is,
x = (-b +/- sqrt (b² - 4ac)) / 2a

In the quadratic equation above, we have the numerical coefficients.
a = 2
b = 3
c = 8

Substituting the known values,
x = (-3 +/- sqrt (3² - 4(2)(8))/ (2)(2)
x = -0.75 + 1.854i and x = -0.75 - 1.854i

By the calculated roots above, it is known that the roots are imaginary.

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A car traveling 100 miles in 2 hours has a unit rate of ___ miles per hour.

Angelina_Jolie [31]

Answer:

50 miles

Step-by-step explanation:

if a car travels 100 miles in two hours, divide 100 by 2 and you get 50 miles.

5 0

3 years ago

Read 2 more answers

A restaurant has fixed costs of $147.50 per day and an average unit cost of $5.75 for each meal served. If a typical meal costs

Nikolay [14]

Answer:

The answer is 118.

Step-by-step explanation:

First we need to subtract the meal cost from average unit cost for each meal:

$7-5.75=1.25$

A restaurant profits 1.25$ for each meal. If we divide fixed cost to profit for each meal:

$147.5/1.25=118$

The restaurant have to sell 118 meals at least each day for the owner to break even

5 0

3 years ago

What is the median of the ages in this stem-and-leaf plot? 43 45 46 47

ICE Princess25 [194]

To find a median of an even amount of numbers, add the two middle numbers, and divide by two.

45 + 46 = 91

91/2 = 45.5

45.5 is your median

hope this helps

6 0

3 years ago

Read 2 more answers

How many times larger is 5 × 106 than 5 × 102? PLEASE HELP !

Ray Of Light [21]

Divide the largest one by the smallest one : for example, the number 4 is 42=2× larger than the number 2.

Indeed, If you multiply 2 by 42 you'll get 4.

Of course, if a number is n× larger than another, then this other is n× smaller than the first one.

It will of course work with floating point : 0.6×10.6≈0.6×1.6667=1 so 1 is ~1.6667 times larger than 0.6 while 0.6 is ~1.6667 smaller than 1.

plz mark me as the Brainleist plz

5 0

3 years ago

. a) In a group of 75 students, 20 liked football only, 30 liked cricket only and 18 did not like any of two games? (i) How many

qaws [65]

i)50

Steps

30+20=50

ii)7

Steps

75-(30+20)-18

=75-(50)-18

iii)20

Steps

From the available data from the question

iv)30

Steps

From the available data from the questionl

v)From the attcged image file

4 0

2 years ago