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Alenkinab [10]
2 years ago
7

If the point (2/3,y) is on the unit circle, what is y?

Mathematics
1 answer:
LUCKY_DIMON [66]2 years ago
8 0
On the unit circle, the abscise (x) is the cosine and the ordinate (y) = sinus
So y is the sinus

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9 oranges cost $3.60. How much are 4 oranges?
V125BC [204]

Answer:

      $1.60

Step-by-step explanation:

Set up an equation where you have the total oranges (o) on top and the cost (c) on the bottom. So you will have two fractions equaling each other. So you will have o/c=o/c. Now you just have to replace the variables with what you know. 9 oranges= $3.60, and you want to know how much 4 oranges cost. Since the cost per orange is the same, no matter how many oranges you buy if you divide the amount of oranges by the price you will always get the same number. So replace the variables with the numbers you know and you get,

9/$3.60=4/c

Now to solve an equal fraction problem, simply cross multiply (multiply the two numbers diagonal so 4 and 3.6), and divide (take the multiplied number and divide by the number remaining which will be the number diagonal from the variable) which gives you $1.60 for four oranges.

5 0
3 years ago
What are the coordinates of the vertex for f(x) = x2 + 4x + 10?
Nady [450]
F(x) = x² + 4x + 10

f(x) - 10 = x² + 4x

perfect square:
x² + 4x + 4 ⇒ (x + 2)²

(x + 2)² = x(x+2) + 2(x+2) = x² + 2x + 2x + 4 = x² + 4x + 4

f(x) - 10 + 4 = x² + 4x + 4
f(x) - 6 = (x+2)²
f(x) = (x+2)² + 6
3 0
3 years ago
The two rectangular prisms shown have bases with the same area. Which statement is true?
svp [43]

Answer:

B

Step-by-step explanation:

i just did it and i got B.

7 0
3 years ago
Read 2 more answers
Classify each pair of angels listed below as adjacent or vertical.
Stolb23 [73]

Answer:

ntersecting lines DA and CE.

To find:

Each pair of adjacent angles and vertical angles.

Solution:

Adjacent angles are in the same straight line.

Pair of adjacent angles:

(1) ∠EBD and ∠DBC

(2) ∠DBC and ∠CBA

(3) ∠CBA and ∠ABE

(4) ∠ABE and ∠EBD

Vertical angles are opposite angles in the same vertex.

Pair of vertical angles:

(1) ∠EBD and ∠CBA

(2) ∠DBC and ∠EBA

5 0
3 years ago
Solve for z:2^3z+9=8^2z+1
Anika [276]

Answer:

Hope this helps

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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