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3 years ago

Select the correct answer.

Mathematics

1 answer:

Lisa [10]3 years ago

4 0

Answer:

Step-by-step explanation:

Inverse means the opposite in effect. The reverse of. Therefore if f(x) is -1,-3 bad you are looking for the inverse which is g(x) is -1,__. It would be 3.

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hram777 [196]

Answer:

x = 2

Step-by-step explanation:

5x + (x + 12)

6x = 12

x = 2

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3 years ago

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inna [77]

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3 years ago

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hammer [34]

Answer:

Shaded area is 55 units²

Step-by-step explanation:

Ignoring the white cutout, we have a rectangle of length 10 and width 7 (count the squares in each direction). The area of this larger rectangle is

(10 units)(7 units) = 70 units². The white area that we previously ignored has dimensions 3 by 5 units, and thus an area of 15 units²

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3 years ago

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schepotkina [342]

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4 0

3 years ago

If sin(θ -π/2) = 0.73.. find cos (-θ) plz explain how to solve

Temka [501]

Answer:

$cos(-\theta) = -0.73$

Step-by-step explanation:

It is given that:

$sin(\theta -\dfrac{\pi}{2}) = 0.73$

<u>Formula to be used:</u>

$1.\ sin(-x) = -sinx\\2.\ sin(\dfrac{\pi}{2}-x) = cosx\\3.\ cos(-x) = cosx$

Using Formula (1) written above:

$\Rightarrow sin (\theta - \dfrac{\pi}{2})=sin(-(\dfrac{\pi}{2}-\theta ))\\\Rightarrow -sin(\dfrac{\pi}{2}-\theta)$

Now, using Formula (2) written above:

$\Rightarrow -sin(\dfrac{\pi}{2}-\theta) = -cos \theta$

So, we can say that:

$sin(\theta -\dfrac{\pi}{2}) = -cos\theta = 0.73 ...... (1)$

We have to find the value of $cos(-\theta)$ .

Using Formula (3) written above:

$cos(-\theta) = cos\theta$

So, ultimately we need to find the value of $cos\theta$

Using equation (1):

$-cos\theta = 0.73\\\Rightarrow cos\theta = -0.73$

So, the answer is $cos(-\theta) = -0.73$ .

3 0

3 years ago