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motikmotik
3 years ago
9

Find the roots of the function f(x) = 3x4 - 48.

Mathematics
1 answer:
Andrew [12]3 years ago
6 0

Answer:

x=\pm 2\text{ or } x = \pm 2i

Step-by-step explanation:

We are given:

0=3x^4-48

Factor:

0=3(x^4-16)

Difference of Two Squares:

0=3(x^2-4)(x^2+4)

Zero Product Property:

(x^2-4)=0\text{ or } x^2+4=0

Solve:

x^2=4\text{ or } x^2=-4

Take the square root. Since we are taking an even-root, it requires plus/minus:

x=\pm 2\text{ or } x = \pm 2i

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Lilit [14]

Answer:

Question Number 1: C. -58 meters

Question Number 2: 1.45 lbs

Step-by-step explanation:

<em><u>Question Number 1: </u></em>

40 - 12 = 28 meters below sea level

28 + 30 = 58 meters below sea level . So respectively its negative, so -58 would be your answer .

<em><u>Question Number 2: </u></em>

To figure out how many pounds of carrots are in each cake, divided 7.25 by 5. That equals 1.45. So one cake needs 1.45 pounds of carrots.

8 0
2 years ago
Given: m∠A + m∠B = m∠B + m∠C Prove: m∠C = m∠A
mel-nik [20]

Answer:

See below.

Step-by-step explanation:

m∠A + m∠B = m∠B + m∠C

Use the subtraction property of equality to subtract m<B from both sides of the equation.

m∠A + m∠B - m<B = m∠B - m<B + m∠C

m∠A = m∠C

8 0
3 years ago
Read 2 more answers
Pls help asap will mark brainleist
DochEvi [55]

Answer:

10

Step-by-step explanation:

Since the Y axis is the same you add 3+|-7|

so thats 10, which makes your answer 10

4 0
3 years ago
Does secondhand smoke affect asthma?
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2 years ago
Amy gets a new kennel for her dog. A sketch of the kennel is shown here. If the roof is in the shape of a triangular prism (bott
SpyIntel [72]

Answer:

<em>Surface area of the roof of the kennel, including the bottom face is 58.96 ft^2</em>

<em></em>

Step-by-step explanation:

The image is attached below

For the triangular sides of the roof, area is

A = \frac{1}{2}bh

where b is the base = 4 ft

h is the vertical height = 2.24 ft

A =  \frac{1}{2}*4*2.24 = 4.48 ft^2

for the two faces we have 2 x 4.48 ft^2 = <em>8.96 ft^2</em>

For the rectangular sections of the roof, area is

A = lh

where l is the length of the rectangle = 5 ft

h is the height of the rectangle = 3 ft

A = 5 x 3 = 15 ft^2

For the two rectangular faces, we have 2 x 15 ft^2 = <em>30 ft^2</em>

<em></em>

For the bottom face, area is

A = lw

where l is the length of the house = 5 ft

w is the width of the house = 4 ft

A = 5 x 4 = <em>20 ft^2</em>

<em></em>

Surface area of the roof of the dog kennel is

<em>8.96 ft^2 + 30 ft^2 + 20 ft^2 = 58.96 ft^2</em>

4 0
3 years ago
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