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trasher [3.6K]
2 years ago
15

Help me to solve thisssss​

Mathematics
1 answer:
m_a_m_a [10]2 years ago
7 0

Answer:

(a + 3)

Step-by-step explanation:

a³ - 9a = a(a² - 9) = a(a + 3)(a - 3)

a² + a - 6 = (a - 2)(a + 3)

a⁴ + 27a = a(a³ + 27) = a(a - 3)(a² + 6a + 9) = a(a - 3)(a + 3)(a + 3)

HCF = (a + 3)

Hope it helps.

;)

<3

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HI i neeed helppppppppppppppppp
elena-14-01-66 [18.8K]

Answer:

5

Step-by-step explanation:

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2 years ago
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pls help!? with all 4 Questions I would rlly appreciate your help thx to plp who help me I will improve on my math and be way be
aliina [53]
7.6=w/12
w=7.6(12)
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6 0
3 years ago
The diameter of a tire is 2.5 ft. Use this measurement to answer parts a and b. Show all work to receive full credit
Alla [95]

Answer:

The answer is below

Step-by-step explanation:

The diameter of a tire is 2.5 ft. a. Find the circumference of the tire. b. About how many times will the tire have to rotate to travel 1 mile?

Solution:

a) The circumference of a circle is the perimeter of the circle. The circumference of the circle is the distance around a circle, that is the arc length of the circle. The circumference of a circle is given by:

Circumference = 2π × radius; but diameter = 2 × radius. Hence:

Circumference = π * diameter.

Given that diameter of the tire = 2.5 ft:

Circumference of the tire = π * diameter = 2.5 * π = 7.85 ft

b) since the circumference of the tire is 7.85 ft, it means that 1 revolution of the tire covers a distance of 7.85 ft.

1 mile = 5280 ft

The number of rotation required to cover 1 mile (5280 ft) is:

number of rotation = \frac{5280\ ft}{7.85\ ft\ per\ rotation}=672\ rotations\\\\\\

4 0
2 years ago
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30 percent of what number is 2 ​
labwork [276]

Answer:

2 is 30 percent of 6.67

Step-by-step explanat

2/30*100=6.6667

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2 years ago
According to the instructions on a bag of fertilizer are needed for every 100 square feet of lawn. How many square feet will a 2
goblinko [34]

Answer:

25 times 100= 2500

Step-by-step explanation:

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2 years ago
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