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katrin2010 [14]
3 years ago
5

Find the solution set.2x^2+3x=2 separate the two values with a comma.

Mathematics
1 answer:
inna [77]3 years ago
5 0

Answer:

x = -2, 1/2

Step-by-step explanation:

Step 1: Isolate everything to 1 side

2x² + 3x - 2 = 0

Step 2: Factor

(2x - 1)(x + 2) = 0

Step 3: Find roots

2x - 1 = 0

2x = 1

x = 1/2

x + 2 = 0

x = -2

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Find the standard deviation of the following data. Round to the nearest hundredth 124, 89, 114, 89, 108, 62, 65
Bond [772]

Answer:

62,65,89,114,124 im not really sure but examples may vaey depend to lessons and factors...

Step-by-step explanation:

Does this help?

6 0
3 years ago
Derek bought 15 feet of rope for a science project. if he used 10 3/8 feet of the rope, how many feet of rope does he have left
Lubov Fominskaja [6]

Answer:

155.625 or ( 89/160 )

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
4 points Item 5 is unpinned. Click to pin. A cylindrical oil drum is 2.1 meters high and has a radius of 0.9 meters. How many cu
pashok25 [27]

Answer:

53.44 cubic meters

Step-by-step explanation:

A cylindrical oil drum is 2.1 meters high and has a radius of 0.9 meters. How many cubic meters of oil can the drum hold? (volume)

Volume of a cylinder = π × r² × h

r = 0.9 meters

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= π × (0.9m)² × 2.1m

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7 0
3 years ago
Jim thinks of a number (n). He adds 5 to the
Karolina [17]

Answers + Step-by-step explanation :

a) the equation should be:
7(n + 5) = 91 since you first add 5 to n and then multiply it by 7. The answer is 91 so that is on the other side of the equal sign

b) we can solve our equation to find for n, the number jim thought of

7(n + 5) = 91
I will use the distributive property.

7n + 35 = 91

Subtract 35 on both sides

7n = 56

Now divide 7 on both sides to find n

n = 8

The number Jim was thinking of was 8! this should be correct, hope this helps!

4 0
2 years ago
Enter a recursive rule for the geometric sequence.
Jlenok [28]

Answer:

x_{n} = 5 \ * \ (-2)^{n-1}

Step-by-step explanation:

Given the geometric sequence:

5, −10, 20, −40, ...

The first term is a = 5  

And the common ratio = r = -10/5 = -2

The general rule of geometric sequence is

x_{n} = a \ * \ r^{n-1}

So, the rule for the given geometric sequence is:

x_{n} = 5 \ * \ (-2)^{n-1}

8 0
3 years ago
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