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Olin [163]
3 years ago
8

At what point does π/2 intersect the unit circle?

Mathematics
1 answer:
Harman [31]3 years ago
4 0

Answer:

when it gets in the middle

Step-by-step explanation:

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3. Complete the square for 3x2 - 6x = 21.<br> Help
PSYCHO15rus [73]

Answer:

x=1+2√2 or x=1−2√2

Step-by-step explanation:

Let's solve your equation step-by-step.

3x2−6x=21

Step 1: Since the coefficient of 3x^2 is 3, divide both sides by 3.

3x2−6x

3

=

21

3

x2−2x=7

Step 2: The coefficient of -2x is -2. Let b=-2.  

Then we need to add (b/2)^2=1 to both sides to complete the square.

Add 1 to both sides.

x2−2x+1=7+1

x2−2x+1=8

Step 3: Factor left side.

(x−1)2=8

Step 4: Take square root.

x−1=±√8

Step 5: Add 1 to both sides.

x−1+1=1±√8

x=1±√8

x=1+2√2 or x=1−2√2

7 0
3 years ago
Compute the amount of interest earned in the following simple interest problem. A deposit of $8,000 at 9.5% for 120 days.
elena-14-01-66 [18.8K]
Hi there

I=prt
P principle 8000
R interest rate 0.095
T time 120/360
I interest earned?

I=8,000×0.095×(120÷360)
I=253.33

Hope it helps
6 0
3 years ago
Read 2 more answers
An indirect proof assumes:
valkas [14]

Answer: 1. the negative of the conclusion is true

5 0
3 years ago
Read 2 more answers
The perimeter of a triangle is 27. Each side of the triangle has length 2x-3. What is the value of x?
Bezzdna [24]

Answer:

x=6

Step-by-step explanation:

To find the perimeter of the triangle you need to add up all the sides, so if all the sides are 2x-3 the equation will look like this;

2x-3+2x-3+2x-3=27

which when combining like terms will leave it to be;

6x-9=27

Than move all the factors besides x over to the right side;

6x-9+9=27+9

6x = 36

6x/6 = 36/6

x = 6

so your answer will be x=6

8 0
2 years ago
The radius of the circle on a basketball court is 6 ft. What are the approximate circumference and area of the circle?
Andrei [34K]

ANSWER:

Circumference= 37.7

Area= 113.1

5 0
2 years ago
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