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3 years ago

What polynomial has roots of -4,1,and 6

Mathematics

1 answer:

Nataliya [291]3 years ago

4 0

Answer:

The answer is 1st point

Step-by-step explanation:

x = -4 x = 1 x = 6

(x+4) = 0 (x-1) = 0 (x-6) = 0

(x+4)(x-1)(x-6) = 0

(x²-x+4x-4)(x-6) = 0

(x²+3x-4)(x-6) = 0

x³-6x²+3x²-18x-4x+24 = 0

x³-3x²-22x+24 = 0

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A regular work week is 40 hours. Overtime pay is time and one-half. Isabel drives a truck for $8.75 an hour. If she worked 48 ho

Harlamova29_29 [7]

For 40 hours it would be $350

And since it is only half pay for overtime then she would only make $35 in eight hours

So altogether she would make $385 this week

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3 years ago

In a continuous series, mean(x) = 80, assumed mean(A) = 60 and<br>EF=40 then find the value of EFd.

Aneli [31]

Using the given information, the value of Σfd is 800

<h3>Calculating mean using Assumed mean </h3>

From the question, we are to determine the value of Σfd

The formula for mean, using the assumed mean method is given by

$\bar x = A + \frac{\sum fd}{\sum f}$

Where $\bar x$ is the mean

A is the assumed mean

From the given information,

$\bar x = 80$

$A = 60$

$\sum f = 40$

Putting the parameters into the equation, we get

$80 = 60 + \frac{\sum fd}{40}$

$80-60 = \frac{\sum fd}{40}$

$20 = \frac{\sum fd}{40}$

$\sum fd = 20 \times 40$

$\sum fd = 800$

Hence, the value of Σfd is 800

Learn more on Mean here: brainly.com/question/20118982

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8 0

2 years ago

A bicycle lock requires a two-digit code of numbers 1 through 9, and any digit may be used only once. Which expression would det

sweet-ann [11.9K]

The answer is the first choice.

P(both even) = (4P1)(3P1) / 9P2

5 0

4 years ago

Read 2 more answers

Factor please <br> x^2+8x+15

Anastasy [175]

Answer:

(x + 3)(x + 5)

Step-by-step explanation:

The given expression is x^2 +8x + 15

Now find the factor of 15 such that when you add the factors, we have to get 8

The right factors of 15.

5 * 3 = 15

5 + 3 = 8

The right factors are 3 and 5.

x^2 + 8x + 15 = (x + 3)(x + 5)

Therefore, x^2 + 8x + 15 = (x + 3)(x + 5)

Thank you.

6 0

3 years ago

The sum of two numbers is equal to 63, and their difference is equal to 12. Find the numbers

Ainat [17]

Answer:

25.5 and 37.5

Step-by-step explanation:

x+y=63

x-y = 12 then x = 12 + y sub this into the first equation

(12+y) + y = 63

12 + 2y = 63

2y = 51

y = 25.5 then x = 37.5

6 0

2 years ago