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torisob [31]
3 years ago
13

Find the solutions of each equation on the interval [0, 2π).

Mathematics
1 answer:
inysia [295]3 years ago
7 0

Answer:

x = 0

Step-by-step explanation:

Given sin(3π/2+x) + sin(3π/2+x) = -2

2sin(3π/2+x) = -2

sin(3π/2+x) = -1

clearly x = 0 on satisfies the above equation

We know that sin(3π/2+x) = - cosx

-cosx = -1

cosx = 1 Has only one solution at x=0 in x∈ [0,2π)

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If y is 25% less than x is,what percent of x is more than y​
Ludmilka [50]

Answer:

75%

Step-by-step explanation:

y+x = 100%

x-25%=y

x-y=25%

X=25%-Y

75%

7 0
3 years ago
Which is the graph of f(x) = x2 – 2x + 3?
BaLLatris [955]

Answer:

Step-by-step explanation:

We cannot factor this function out which tells us that there are no zeros. The graph backs this up because we can see that there are none. The easiest way to graph this would start by plugging in points and making a table for yourself.

Lets start by plugging in -1.

(-1)^2-2(-1)+3 =6, this means we have a point at (-1,6).

Now lets plug in 0.

(0)^2-2(0)+3= 3 (0,3)

For plugging in 1

(1)^2-2(1)+3=2 (1,2) (this happens to be the vertex)

And lastly lets plug in 2

(2)^2-2(2)+3=3 (2,3)

Depending on how many points are needed, keep plugging in numbers like we did above.

7 0
3 years ago
When given angle measures of 25°, 65°, and
Blababa [14]

You first add all the angles together.

25 + 65 + 90 = 180°

The total angle measurement of a triangle is 180°. Therefore, it is possible to only make one triangle.

6 0
3 years ago
Expand and simplify 2(5x - 1) – (2x - 5) ​
horrorfan [7]

Answer:

2(5x - 1) – (2x - 5)

=2(5x−1)−2x+5

=10x−2−2x+5

=(10x−2x)+(−2+5)

=8x+3

Step-by-step explanation:

3 0
2 years ago
If 4x²+ y²= 40 and xy = 6 , find the value of (2x − y).
ziro4ka [17]

answer is 2x+y=±8

hopes this helps u

8 0
2 years ago
Read 2 more answers
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