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3 years ago

Can a quadratic be negative be negative?

Mathematics

2 answers:

lora16 [44]3 years ago

5 0

Answer:

Yes. The solution is a complex number, with real and imaginary parts.

Step-by-step explanation:

Ex: x²=-1.

Yes, a quadratic can be negative. x is a complex numbers, with a real and an imaginary part.

S_A_V [24]3 years ago

4 0

Answer:

yes

Step-by-step explanation:

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After the closing of the mill, the town of Sawyerville experienced a decline in its population.

vfiekz [6]

Step-by-step explanation:

P(t) = 12,000 (2)^(-t/15)

9,000 = 12,000 (2)^(-t/15)

0.75 = 2^(-t/15)

ln(0.75) = ln(2^(-t/15))

ln(0.75) = (-t/15) ln(2)

-15 ln(0.75) / ln(2) = t

t = 6.23

4 0

3 years ago

Evaluate the expression. [(8 x 7) – 2): 9

frozen [14]

Answer:

☑ Answer is 6

Step-by-step explanation:

${ \tt{ \{(8 \times 7) - 2 \} : 9}} \\ = { \tt{(56 - 2) :9 }} \\ = { \tt{54 :9 }}$

» But this is a ratio, so it can be expressed in terms of fractions:

$= { \tt{ \frac{54}{9} }} \\$

» Divide both the denominator and numerator by 9:

${ \tt{ = \frac{54 \div 9}{9 \div 9} }} \\ \\ = { \tt{ \frac{6}{1} }} \\ \\ = 6$

6 0

2 years ago

You have 400 cards stored 3/5 of them are from family. 1/4 of them are from friends. The rest you made. How many cards did you m

omeli [17]

You made 3/20 of the 400 cards, which is 60 cards.

5 0

2 years ago

How to solve for<br> LN and what are the variables

Lesechka [4]

Answer:

v See below. v

Step-by-step explanation:

LM = MN

11x - 21 = 8x + 15

$3x-21=15\\3x=36\\$

x = 12

LM = 11(12) - 21 = 132 - 21 = 111

MN = 8(12) + 15 = 96 + 15 = 111

LN = 111 + 111 = 222

3 0

3 years ago

Enter the solution (,) x , y to the system of equations shown. <br><br> y=5<br> y=2x+16

Ratling [72]

Answer:

(2, 11)

Step-by-step explanation:

So, we have to make them equal to each other.

5 = 2x + 16

Subtract 5 from both sides

y = 2x + 11

(2, 11)

4 0

3 years ago