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1 month ago

Which of the following expresses the possible number of positive real solutions for the polynomial equation shown below?

Mathematics

2 answers:

zzz [12.3K]1 month ago

4 0

The correct option is A. Two or zero

Apex (;

PIT_PIT [12.4K]1 month ago

3 0

The correct choice for this inquiry is option "B. three or one". All potential roots of this equation can be real numbers. When imaginary roots exist, they occur in pairs, where each is the conjugate of its counterpart, resulting in only one real root remaining.

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Which of the following is equivalent to 18 minus StartRoot negative 25 EndRoot? 5i 18 – 5i 18 + 5i 23

tester [12383]

Answer:

Step-by-step explanation:

$18-\sqrt{-25}=18-\sqrt{i^{2}*5^{2}}\\\\=18-5i$

3 0

13 days ago

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Barbara sells iced tea for $1.49 per bottle and water for $1.25 per bottle. She wrote an equation to find the number of drinks s

tester [12383]

Her phrasing suggests that she would sell numerous water bottles and just a single iced tea. The accurate equation should be 1.25x + 1.49y = 100, as she may offer varying quantities of both.

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1 month ago

The table represents the equation y = 2 – 4x. A 2-column table with 5 rows. The first column is labeled x with entries negative

tester [12383]

The missing value associated with $x=-1$ is $y=6$

Explanation:

The provided equation for the table is $y=2-4x$

This table consists of 2 columns and 5 rows.

x y

-2 10

-1 ---

0 2

1 -2

2 -6

To find the value for y when $x=-1$

The value of y can be ascertained by substituting $x=-1$ into the equation $y=2-4x$

$y=2-4(-1)$

$y=2+4$

$y=6$

<pso the="">value of y when $x=-1$ is 6.

Hence, the value for $x=-1$ is $y=6$

</pso></psumming></pmultiplying></pthus></pconsequently>

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1 month ago

Read 2 more answers

A grocery store receives deliveries of corn from two farms, one in Iowa and the other in Ohio. Both farms produce ears of corn w

Zina [12379]

Answer:

The number of standard deviations above the mean is $z_o = 1.4607$

Step-by-step explanation:

The question indicates that:

The average weight of the corn ears from each farm is $\mu=1.26$

The standard deviation for the corn ears from Iowa is $\sigma_1$

The standard deviation for the corn ears from Ohio is

$\sigma_2= 0.01 + \sigma_1$

A randomly chosen ear of corn from Iowa weighs x = 1.39 pounds

The standardized score is z = 1.645

The weight of a randomly chosen ear of corn from Ohio measures $x_1 = 1.39\ pound$

In general, the standardized score of corn weight from Iowa can be mathematically defined as:

$z = \frac{ 1.39 - 1.26 }{\sigma_1 }$

=> $1.645 = \frac{ 1.39 - 1.26 }{\sigma_1 }$

=> $\sigma_1 = \frac{ 1.39 - 1.26 }{ 1.64 5}$

=> $\sigma_1 = 0.0790$

Conversely, the standardized score of corn weight from Ohio is expressed as:

$z_o = \frac{ 1.39 - 1.26 }{\sigma_2 }$

=> $z_o= \frac{ 1.39 - 1.26 }{0.01 + \sigma_1 }$

=> $z_o = \frac{ 1.39 - 1.26 }{ 0.089}$

=> $z_o = 1.4607$

A positive value indicates this quantity represents the number of standard deviations above the mean.

4 0

1 month ago

A fox sees a rabbit 35 feet away and starts chasing it. As soon as the fox starts moving the rabbit sees it and starts running a

zzz [12365]

The fox’s speed needs to exceed that of the rabbit to successfully catch up. Thus, the required speed for the fox is expressed as 35/t + 40.

The distance separating the rabbit from the fox is 35 feet.

The speed of the rabbit is 40 feet per second.

Fox's speed = F

To calculate a precise speed for the fox, a specific time for the pursuit must be provided.

Let’s denote the time as t.

Recall that:

Speed = distance / time

Distance = speed × time

The distance the rabbit moves away from the fox after time t will be:

35 + (40 × t) = 35 + 40t

The distance traveled by the fox after time t is: fox speed × t = F × t.

To catch the rabbit, both the fox and rabbit must cover the same distance:

Rabbit's distance at time t equals Fox's distance at that time.

35 + 40t = Ft

To determine F, the fox's speed:

Dividing both sides by t yields:

(35 + 40t) / t = Ft/t

35/t + 40 = F

<pThus, the speed of the fox should be: 35/t + 40

To find out the exact speed of the fox, a specific time value must be provided.

Learn more:

4 0

1 month ago