3 years ago

Which trigonometric functions are equivalent to cos ∅. There must be only 2 selections no more no less !

Mathematics

1 answer:

oksian1 [2.3K]3 years ago

5 0

Answer:

cos(theta+2π) and -cos(-theta)

Step-by-step explanation:

theta plus 2π have the same cosine output as theta on a graph.

the negative cosine of negative theta is equal to the positive cosine of positive theta.

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Usimov [2.4K]

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42 gallons.

Step-by-step explanation:

count every inch *2 and calculate gallons

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2 years ago

What is the measure of ∠F? Irregular quadriateral. Reading clockwise, the angles are labeled one hundred thirty-two degrees, six

Delvig [45]

Total of all angles should equal 360 degrees. So 360-132-68-66=94, angle F is 94 degrees.

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3 years ago

Is x = 7 a solution to the equation 3x - 4 = 15? No Yes

Elis [28]

Answer:

No, because 3 x 7 = 21 - 4 = 17

Step-by-step explanation:

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3 years ago

Read 2 more answers

Slope is 3, and (1,4) is on the line.

3241004551 [841]

If you are looking for the equation of the line,

Use Point Slope Form

$y-y _{1} = m(x- x_{1})

$

y-4 = 3(x-1)
y-4 = 3x-3

y = 3x + 1

4 0

3 years ago

If 2x² – 2y = 125 and x - y = 2.5, find the value of<br> x + y

uysha [10]

We can solve this using substitution.

because x-y=2.5

x=y+2.5

Now substitute x into other equation.

2(y+2.5)^2-2y=125

2y^2+10y+12.5-2y=125

2y^2+8y-112.5=0

Now comes the ugly part

y=-4+-sqrt(16+900)

y=-4+-sqrt916

y=-4+-2sqrt229

x=-1.5+-2sqrt229

6 0

3 years ago