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3 years ago

What is the quadratic formula of 4x2+3x+5=0

1 answer:

3 0

4x² + 3x + 5 = 0
x = -3 +/- √(3² - 4(4)(5))
 2(4)
x = -3 +/- √(9 - 80)
 8
x = -3 +/- √(-71)
 8
x = -3 +/- √(71 × (-1))
 8
x = -3 +/- √(71) × √(-1)
 8
x = -3 +/- 8.43i
 8
x = -0.375 +/- 1.05375i
x = -0.375 + 1.05375i x = -0.375 - 1.05375i

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What number has the same value as 14 tens

tangare [24]

If there are 14 tens, that is 14 multiplied by 10. 14 x 10 = 140.

140 is the answer.

Hope this helps :)

8 0

3 years ago

Shazia sells 25x^2+5x+5 flowers in one day. If she sells the same number of flowers each day for rs 5x each , how much money wil

Mumz [18]

Answer:

$Total = 625x^3 + 125x^2 + 125x$

Step-by-step explanation:

Given

$Flowers = 25x^2 + 5x + 5$

$Unit\ price = 5x$

Required

The total price for 5 days

First, calculate the total for a day.

$1\ day = Unit\ price * Flowers$

$1\ day = 5x * (25x^2 + 5x + 5)$

Open bracket

$1\ day = 125x^3 + 25x^2 + 25x$

For 5 days, the total will be.

Total = days * sales of a day

So, we have:

$Total = 5 * [ 125x^3 + 25x^2 + 25x]$

$Total = 625x^3 + 125x^2 + 125x$

7 0

3 years ago

Using traditional methods, it takes 10.8 hours to receive a basic flying license. A new license training method using Computer A

sesenic [268]

Answer:

Hence the value of the test statistic is 0.780.

Step-by-step explanation:

Given:

Test Statistic:-

$t=\frac{\bar{X}-\mu }{\frac{S}{\sqrt{n}}}$

$t=\frac{11.2-10.8 }{\frac{1.7}{\sqrt{11}}}$

$t=\frac{0.4}{0.5126}\\t=0.780$

4 0

3 years ago

13-0.75w+ 8x when w = 12and x =1/2

Oksi-84 [34.3K]

Answer:

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

A video sharing website starts with 20,000 members. Each year it loses 25% of the members, but adds 10,000 new members after the

MrMuchimi

20,000 x 25 = 500,000
500,000 divided by 100 = 5,000 members are lost.
Members left = 15,000
Members added = 10,000
Members every year = Members left + Members added
= 15,000 + 10,000
= 25,000

6 0

3 years ago