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Annette [7]
3 years ago
10

(x2 - 3)(x2 + 12) = 0

Mathematics
1 answer:
galben [10]3 years ago
7 0

Answer:

x=1.7320508075688772 or x=−1.7320508075688772

Step-by-step explanation:

(x2−3)(x2+12)=0

x4+9x2−36=0

(x2−3)(x2+12)=0

x2−3=0 or x2+12=0

x=1.7320508075688772 or x=−1.7320508075688772

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James purchases 500 vinyl records for $25.00. Which statement describes a unit rate for his purchase? (choose all answers that a
Flura [38]

Answer:

500 vinyl records for $25 and 20 vinyl records for $1

Step-by-step explanation:

you have to multiply 500 by 25 and you get 20 records forjust 1 dollar

3 0
3 years ago
1) sin 102<br> in standard position
ira [324]

Answer:

What are you asking? Whats the problem?

4 0
3 years ago
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Two, trains, one from Howrah to Patna and the other from Patna to Howrah, start simultaneously. After they meet, the trains reac
dsp73

Answer:

3:2

Explanation:

Let's call the trains A and B

Train A moves from Howrah to Patna in 9 hours

Train B moves from Patna to Howrah in 16 hours

Assuming it takes 30 miles to OR from each destination,

Then train A travels 30 miles in 9 hours

Train B travels 30 miles in 16 hours

Train A's speed is 30/9= 3.33 miles per hour

Train B's speed is 30/16= 1.88 miles per hour

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3 0
3 years ago
C is the center of the circle. Find the area of the segment shown in the figure,
Semmy [17]

Answer: A 28.50 sq. u

Step-by-step explanation:

In the given figure , radius of the circle : r= 10 u

Central angle made by Arc ED: \theta= 90° ( right angle )

Now , the area of the segment is given by :-

Area of segment = Area of sector (ECD) - Area of triangle(ECD) (i)

Formula : Area of right triangle = 0.5 x Base x Height

Area of sector = \dfrac{\theta}{360^{\circ}}\times\pi r^2

Using above formulas in (i) and substituting corresponding values , we get

Area of segment =

\dfrac{90^{\circ}}{360^{\circ}}\times\pi (10)^2-0.5\times10\times10\\\\=\frac{1}{4}(3.14)(100)-50\\\\=78.5-50=28.5\ sq.u

Hence, the correct answer is A 28.50 sq. u

6 0
3 years ago
Joe bought 6 shirts for the same price each and a pair of pants for $40. He spent a total of $120.00. How much does 1 shirt cost
Sav [38]

Answer:

13.33 (or 13 1/3 if they ask for a fraction)

Step-by-step explanation:

we subtract the pair of pants then divide what we get by 6

6 0
3 years ago
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