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Archy [21]
2 years ago
11

How do you solve this without using a calculator

Mathematics
1 answer:
Leviafan [203]2 years ago
5 0

Answer:

C)\:\:\frac{\sqrt 2}{ 2 }

Step-by-step explanation:

\sin \bigg(   \frac{3\pi}{4} \bigg) \\  \\  =  \sin \bigg( \pi   -   \frac{\pi}{4} \bigg) \\  \\  =  \sin \bigg(\frac{\pi}{4} \bigg) \\  \\   =  \frac{1}{ \sqrt{2} }\\\\=  \frac{\sqrt 2}{ 2 }

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Sketch the area under the standard normal curve over the indicated interval and find the specified area. (You can use the probab
mafiozo [28]

The area to the right of z = 1.35 is 0.0885 and the area to the left of -0.47 is 0.3192.

<h3>How to compute the values?.</h3>

Given z = 1.35

= 1- P(z < 1.35)

= 1- 0.9115

= 0.0885

The area to the left of -0.47 will be:

= 1 - P(z < 0.47)

= 1 - 0.6808

= 0.3192

Learn more about normal curve on:

brainly.com/question/6758792

#SPJ1

8 0
2 years ago
The graph of the function f(x) = –(x + 6)(x + 2) is shown below.Which statement about the function is true?
LekaFEV [45]

Answer:

The first statement is true.

Step-by-step explanation:

The function is f(x) = - (x + 6)(x + 2)  

⇒ f(x) = - x² - 8x - 12

Now, condition for a function f(x) to be increasing at x = a is f'(a) > 0.

Now, f(x) = - x² - 8x - 12

⇒ f'(x) = -2x - 8 {Differentiating with respect to x}

Now, f'(a) = -2a - 8 {Here a can be any real value}

And, the condition for increasing function at x = a is  

- 2a - 8 > 0

⇒ - 2a > 8

⇒ a < - 4

Therefore, the first statement is true i.e. the function is increasing for all real values of x where  x < – 4. (Answer)

4 0
3 years ago
What’s the answer for 9x = 72
aleksklad [387]

Answer:8

Step-by-step explanation: Since the opposing way of solving is division, you divide 72 into 9 and you get 8.

7 0
3 years ago
What is the value of x?<br><br> 3(x−2)+5x=18<br><br> X = ????
ikadub [295]

3(x-2)+5x=18

the correct answer is x=3

first simply the equation

8x=18+6

Now rid of alike terms resulting in

8x=24

now divide 24 by 8

x=3

6 0
3 years ago
Read 2 more answers
=
PilotLPTM [1.2K]
It’s yes to 0 axis of 4-q so it’s yes
4 0
3 years ago
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