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2 years ago

How would the expression x3 +8 be rewritten using Sum of Cubes?

Mathematics

1 answer:

Ipatiy [6.2K]2 years ago

8 0

Answer:

alr so ques is

x3 + 8

x^3 + 2^3

now apply identity of a3 + b3

so finally we get

=(x+2)(x2−2x+4)

option 2

enjoy!!!!!

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Two forces of 960 pounds and 670 pounds act simultaneously on an object. The angle between the two forces is 34°. Find the magni

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Answer:

10 pounds

Step-by-step explanation:

the requested information so that

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3 years ago

A student drives 4.8-km trip to school and averages a speed of 22.6 m/s. on the return trip home, the student travels with an av

ArbitrLikvidat [17]

In this case, we cannot simply take the average speed by adding the two speeds and divide by two.

What we have to do is to calculate the time required going to school and the return trip home.

We know that to calculate time, we use the formula:

t = d / v

where,

d = distance = 4.8 km = 4800 m

v = velocity

Let us say that the variables related to the trip going to school is associated with 1, and the return trip home is 2. So,

t1 = 4800 m / (22.6 m / s)

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t2 = 4800 / (16.8 m / s)

t2 = 285.71 s

total time, t = t1 + t2

t = 498.1 s

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= (4800 m + 4800 m) / 498.1 s

= 19.27 m / s = 19.3 m / s

Answer:

19.3 m/s

4 0

3 years ago

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Last year, about 2,400 people participated in a local Fourth of July parade. This year, about 3,200 people participated. What wa

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800 people a year

Step-by-step explanation:

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3 years ago

An isosceles triangle has a base 9.2 units long. If the congruent side lengths have measures to the first decimal place, what is

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Question:

An isosceles triangle has a base of 9.6 units long. If the congruent side lengths have measures to the first decimal place, what is the possible length of the sides? 9.7, 4.9, or 4.7

Answer:

4.9 is the shortest possible length of the sides.

Step-by-step explanation:

Given:

The base of the triangle base = 9.2 units

To Find:

The shortest possible length of the sides = ?

Solution:

The Triangle Inequality Theorem states that the sum of any 2 sides of a triangle must be greater than the measure of the third side.

So According to the theorem

$x+x > 9.6$

$2x > 9.6$

$x > \frac{9.6}{2}$

$x > 4.8$

In the given option 4.9 is the shortest length greater than 4.8 that can be possible.

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3 years ago

Evaluate each expression for g = -7 and h = 3 and match it to its value. 1. g + h 2 2. g - h 46 3. h - g -21 4. gh -4 5. g + h2

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Answer:

1. -4

2. -10

3. 13

4. -21

5. 2

6. 46

Step-by-step explanation:

To evaluate the expression, substitute g= -7 and h = 3. Then simplify using order of operations.

1. $g-h = -7 + 3 = -4$

2. $g-h = -7 - 3 = -10$

3. $h-g = 3 - -7 = 3+10 = 13$

4. $gh = -7(3) = -21$

5. $g+h^2 = -7 + 3^2 = -7+9 = 2$

6. $g^2-h = (-7)^2 -3 = 49 -3 = 46$

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3 years ago

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