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4 years ago

Solve –2x2 – 16x – 44 = 0 answer please using quadtratic equation ...?

1 answer:

5 0

The quadratic formula is one way to obtain the solution of the quadratic<span> equation. It is expressed as:

x = (-b +/- </span>√b² - 4ac ) / 2a

where, for this problem, a = -2, b = -16 and c = -44.

We solve as follows:

x = (-b +/- √b² - 4ac ) / 2a
x = (-(-16) +/- √(-16)² - 4(-2)(-44) ) / 2(-2)
x = (16 +/- √256 - 352 ) / -4
x = (16 +/- √-96 ) / -4
x = -(16 +/- 4i√6 ) / 4

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What does it mean if a check was skipped on a bank statement?

hoa [83]

The <u>correct answer</u> is:

The check has not been cashed yet.

Explanation:

When you receive your bank statements, all of the transactions that have been processed are listed. This includes deposits, debits and checks.

All transactions are usually listed in order of the date of transaction. Additionally, the checks are usually listed at the bottom of the statement.

If there is a gap between check numbers that you have written, it means that the missing checks have not been processed. This means that they have not been cashed or deposited.

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3 years ago

Read 2 more answers

Stephen has art lesson every 6 days.And a swim lesson every 9 days.He has both art and swim lesson on Tuesday.On which day of th

lubasha [3.4K]

6 and 9 go into 18
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4 years ago

Read 2 more answers

How to solve this? Is the question correct? ty :)

bezimeni [28]

Answer:

The proposition is true.

Step-by-step explanation:

Now we proceed to demostrate that expression given is true by algebraic means:

1) $\frac{x^{-1}+y^{-1}}{x^{-1}}+\frac{x^{-1}-y^{-1} }{y^{-1}}$ Given

2) $\frac{y^{-1}\cdot (x^{-1}+y^{-1})+x^{-1}\cdot (x^{-1}-y^{-1})}{x^{-1}\cdot y^{-1}}$ $\frac{a}{b} + \frac{c}{d} = \frac{a\cdot d+b\cdot c}{b\cdot d}$

3) $\frac{x^{-1}\cdot y^{-1}+y^{-2}+x^{-2}-x^{-1}\cdot y^{-1}}{x^{-1}\cdot y^{-1}}$ Distributive property/ $a^{b}\cdot a^{c} = a^{b+c}$

4) $\frac{x^{-2}+y^{-2}}{(x\cdot y)^{-1}}$ Commutative, associative and modulative properties/Existence of additive inverse/ $a^{b}\cdot c^{b} = (a\cdot c)^{b}$

5) $[(x\cdot y)^{-1}]^{-1}\cdot (x^{-2}+y^{-2})$ Commutative property/Definition of division

6) $(x\cdot y)\cdot (x^{-2}+y^{-2})$ $(x^{-1})^{-1}$

7) $x^{-1}\cdot y + x\cdot y^{-1}$ Distributive property/Associative property/ $a^{b}\cdot a^{c} = a^{b+c}$

8) $(x^{-1}\cdot y^{-1})\cdot y^{2} + (x^{-1}\cdot y^{-1})\cdot x^{2}$ Modulative property/Existence of additive inverse/ $a^{b}\cdot a^{c} = a^{b+c}$

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4 0

3 years ago

Which infinite sequence is generated by the formula an = (-2)^n?

PtichkaEL [24]

Answer:

Step-by-step explanation:

-2,4,-8,16,-32...

Each term is -2 times the previous term.

4 0

3 years ago

Enter your answer and shot all the steps that you use to solve this problem in the space provided. This diameter of a tire is 2.

alexdok [17]

A- The circumference of the tire is about 7.85 feet

B- The tire will rotate about 672 times to travel 1 mile

Step-by-step explanation:

The formula of the circumference of a circle is C = π d, where d is the diameter of the circle
If a circle rotates for n turns and make a distance S, then n = $\frac{S}{C}$

∵ The diameter of a tire is 2.5 ft

∴ d = 2.5 ft

∵ C = π d, where C is the circumference of tire

∴ C = π(2.5) = 7.85398 ft

∴ C ≅ 7.85 feet

A- The circumference of the tire is about 7.85 feet

∵ The tire have to travel 1 mile

∵ 1 mile = 5280 feet

∴ S = 5280 feet

- To find the number of rotation of the tire divide S by C

∵ n = $\frac{S}{C}$

∴ n = $\frac{5280}{7.85}$ ≅ 672 revolution

B- The tire will rotate about 672 times to travel 1 mile

Learn more;

You can learn more about rotation in brainly.com/question/2860697

#LearnwithBrainly

4 0

3 years ago