6x^3+ 10x^2 – 4x - I need help with this question

2 answers:

7 0

Answer: 2(x+1)(3x^2+2x-2)

Explanation:
Factor 6x^3+10x^2-4
2(3x^3+5x^2-2)
Rewrite
2(3x^3+3x^2+2x^2+2x-2x-2)
Factor
2(3x^2(x+1)+2x(x+1)-2(x+1)
Factor
2(x+1)(3x^2+2x-2)

Westkost [7]2 years ago

5 0

Answer: 2x(3x−1)(x+2)

Step-by-step explanation:

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Can someone please help me with this problem!

Anna71 [15]

Answer:

11 yards

Step-by-step explanation:

The volume of a cone formula is:

$V=\frac{1}{3}\pi r^2 h$

Where V is the volume,

r is the radius (half of diameter)

h is the height

Given,

h = 15

V = 475.17

We find the radius (r) first by substituting given values:

$V=\frac{1}{3}\pi r^2 h\\475.17=\frac{1}{3}\pi r^2 (15)\\475.17=5\pi r^2\\r^2=30.25\\r=5.5$

The radius (r) is 5.5 yards

We need the diameter, which is DOUBLE THE RADIUS, so diameter would be:

Diameter = 5.5 * 2 = 11 yards

8 0

2 years ago

The area of a rectangular wall of a barn is 64 square feet. Its length is 8 feet longer than twice its width. Find the length an

ValentinkaMS [17]

L×w=64 ft^2...(1)
2w+8= l...(2)

l=64-w...(1a)

2w+8= 64-w
2w+w+8=64
3w=64-8
3w÷3= 56÷3
w=18.6'

l×w= 64
l×18.6= 64
l= 64÷18.6
l= 3.44 to the nearest hundredths.

6 0

3 years ago

Read 2 more answers

Recall that for use of a normal distribution as an approximation to the binomial distribution, the conditions np greater than or

vagabundo [1.1K]

Answer:

The minimum sample size needed for use of the normal approximation is 50.

Step-by-step explanation:

Suitability of the normal distribution:

In a binomial distribution with parameters n and p, the normal approximation is suitable is:

np >= 5

n(1-p) >= 5