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Andre45 [30]
3 years ago
11

Given: cos(2x)=-1/9 Angle x is in quadrant I. Find: cos(x)

Mathematics
1 answer:
sergey [27]3 years ago
5 0
My opinion about this answer is 7
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Please help me thank you I’ll mark Brainly
mrs_skeptik [129]

Answer:

C should be your answer if I'm not right then forgive me please.

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
find the x value.......
seropon [69]

Answer:

the answee is 3

Step-by-step explanation:

7 0
2 years ago
Is anyone wanna help me?
PtichkaEL [24]

Answer:

See the answers bellow

Step-by-step explanation:

For 51:

Using the definition of funcion, given f(x) we know that different x MUST give us different images. If we have two different values of x that arrive to the same f(x) this is not a function. So, the pair (-4, 1) will lead to something that is not a funcion as this would imply that the image of -4 is 1, it is, f(-4)=1 but as we see in the table f(-4)=2. So, as the same x, -4, gives us tw different images, this is not a function.

For 52:

Here we select the three equations that include a y value that are 1, 3 and 4. The other values do not have a y value, so if we operate we will have the value of x equal to a number but not in relation to y.

For 53:

As he will spend $10 dollars on shipping, so he has $110 for buying bulbs. As every bulb costs $20 and he cannot buy parts of a bulb (this is saying you that the domain is in integers) he will, at maximum, buy 5 bulbs at a cost of $100, with $10 resting. He can not buy 6 bulbs and with this $10 is impossible to buy 0.5 bulbs. So, the domain is in integers from 1 <= n <= 5. Option 4.

For 54:

As the u values are integers from 8 to 12, having only 5 possible values, the domain of the function will also have only five integers values, With this we can eliminate options 1 and 2 as they are in real numbers. Option C is the set of values for u but not the domain of c(u). Finally, we have that 4 is correct, those are the values you have if you replace the integer values from 8 to 12 in c(u). Option 4.

6 0
3 years ago
¿Cómo clasificarías este triángulo? ¡Recuerda que necesita dos nombres!
joja [24]

Answer:

how would you classify this triangle? remember you need two names.

3 0
2 years ago
Which fractions are equivalent to -30/48 ?
Vedmedyk [2.9K]

The answer is D

Because

-35/65 = -0.53


I hope that's help:)

6 0
3 years ago
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