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Georgia [21]
3 years ago
7

If the son 30= 1/2 then the cos 60 = ____

Mathematics
1 answer:
Andreas93 [3]3 years ago
6 0

Answer:

cos60° = \frac{1}{2}

Step-by-step explanation:

Using the cofunction identity

• cos(90 - x)° = sinx°, hence

sin30° = cos(90 - 30)° = cos60° = \frac{1}{2}

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What is the image of (-9,3) when it is reflected across the line y = x?
expeople1 [14]

Answer:

(3, -9)

Step-by-step explanation:

To reflect an image across the line y = x, (x, y) → (y, x).

(-9, 3) → (3, -9)

7 0
4 years ago
Read 2 more answers
What is the slope of the line shown below?
notsponge [240]

Answer:

The slope is -2

Step-by-step explanation:

We can use the slope formula

m = (y2-y1)/(x2-x1)

    = (-5-5)/(3 - -2)

    = -10 /(3+2)

     = -10 /5

     = -2

3 0
4 years ago
What are the domain and range of the function f(x) = 3x 5?.
Bingel [31]

The domain and range of the given function both are the real numbers.

<h2>Given that:</h2>
  • The domain and range of function f(x) = 3x + 5 has to be found.

<h2>Explanation for domain and range:</h2>

Considering working in real numbers, domain is \mathbb{R} and range is \mathbb{R} too.

Domain can be complex numbers too, but for the sake of daily life cases, we consider working in real numbers.

Thinking of it as equation of straight line can help.

The given function is monotonically increasing and continuous.

Thus Range can be calculated as  interval ( f(min value of domain), f(max value of domain) ) which gives us \mathbb{R} as range.

Below is the plot of f(x) = 3x + 5 in real number plane.

In fact, any linear equation of the form

y = mx + c ;    \: \: c \in R \: and \: m \in {R-\{0\}}

has  both domain and range as real numbers.

For more information, refer to:

brainly.com/question/12208715

7 0
3 years ago
Read 2 more answers
Can you guys help me with this
Shalnov [3]
Hmm let me c we learnt that long time ago
8 0
3 years ago
suppose a class of 24 students is debating about gun control. From the class, 17 students are in favor of banning guns, 5 studen
Nadya [2.5K]

The answer you are looking for is 8.3%.

To find this, you must find out how many students did not choose to voice their opinions. Simply add 17 and 5 to get 22, and subtract 22 from 24. This will give you 2 students who didn't voice their opinions. Then, divide 2 by 24. In doing so, you'll get 0.083333... which you multiply by 100 to get a percent. You'll be left with 8.3333... which rounded to the nearest tenth, is 8.3%.

I hope this helps!


4 0
4 years ago
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