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Stells [14]
3 years ago
5

List the roots of f(x) = 24x3 – 10x2 -7x + 2:

Mathematics
1 answer:
dexar [7]3 years ago
4 0
F(x) = 24x^3 - 10x^2 - 7x + 2
0 = 24x^3 - 10x^2 - 7x + 2
0 = (4x - 1)(3x - 2)(2x + 1)
0 = 4x - 1 or 0 = 3x - 2 or 0 = 2x + 1
1 = 4x 2 = 3x -1 = 2x
1/4 = x 2/3 = x -1/2 = x

The answer is A.
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If y varies directly as x, find the constant of variation if y= 34 when x= 2
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The answer is C

y=kx. where k is a constant
sub y=34,x=2
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3 years ago
Nigel tried to solve an equation step by step
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Answer:

1

Step-by-step explanation:

8 0
3 years ago
See pictures attached below. Will give Brainliest!
Phoenix [80]

Question 1 Answer:

Aunt 1 and Grandma 1 would fill gift bags.

Mom and Aunt 2 would make centerpieces.

You and Grandma 2 would blow up balloons.

Since you are pairing up to complete the tasks, these pairs each have the shortest times in their respective categories and therefore are the most logical pairing to complete tasks.

Question 2 Answer:

We use algebra and our previous pairings to determine the length of each task.

<u>Gifts Bags --> 6/7 hours</u>

x = time together

\frac{1}{x} = rate of completion

Aunt 1 = \frac{1}{1.5} Grandma 1 = \frac{1}{2}

\frac{2}{3} +\frac{1}{2} = \frac{1}{x}

\frac{7}{6} = \frac{1}{x}

x = \frac{6}{7}

<u>Centerpieces --> 7/4 hours</u>

x = time together    \frac{1}{x} = rate of completion

Mom = \frac{1}{3.5} Aunt 2 = \frac{1}{3.5}

\frac{2}{7} + \frac{2}{7}  = \frac{1}{x}

\frac{4}{7} = \frac{1}{x}

x = \frac{7}{4}

<u>Balloons --> 15/16 hours</u>

x = time together    \frac{1}{x} = rate of completion

You = \frac{1}{1.5} Grandma 2 = \frac{1}{2.5}

\frac{2}{3} + \frac{2}{5}  = \frac{1}{x}

\frac{16}{15} = \frac{1}{x}

x = \frac{15}{16}

Shortest amount of time to complete all tasks is:

\frac{6}{7} + \frac{7}{4} + \frac{15}{16} = \frac{397}{112}  ≈ 3.54 hours

Converting hours to hours and minutes --> 3 hours 32 minutes

Therefore they must arrive by 5:28pm to complete the tasks in time to leave at 9:00pm.

8 0
2 years ago
Jackiehas 7dresses, 4hats, and 8pairs of shoes. She will choose an outfit that has one dress, one hat, and one pair of shoes. Ho
victus00 [196]
The answer is 224. hope this helps
5 0
3 years ago
I just want someone to check if i did all these correctly according to the directions
tekilochka [14]

Answer:

Yes

Step-by-step explanation:

For number 3 you answered them all correctly as well as number 4 and 5. Don't hesitate asking questions like these :D

6 0
3 years ago
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