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3 years ago

Divide: 34.72 by 4.7. the quotient expressed to the correct number of significant figures is

Mathematics

1 answer:

Anna35 [415]3 years ago

6 0

It is a very long number but here it goes. 7.3872340426

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Complete #2 for me and show proof , will give brainliest to whose right .

Stells [14]

Answer:

X Y (X,Y)

-4 14. (-4,14)

-3 12. (-3,12)

-2 10. (-2,10)

-1 8. (-1,8)

0 6 (0,6)

1 4. (1,4)

2 2. (2,2)

4 0

2 years ago

Help I’m not sure how to answer this

Drupady [299]

Answer:

option A is the correct choice

Step-by-step explanation:

The trigonometric equation you are using has a general form

y = A* tan w*(x - r)

Where

A is the amplitude of the function

w is the frequency rad/s

r is the phase shift

In your case

A = 2

B = w = 3

r = pi/2

y = 2* tan 3*(x - pi/2)

8 0

3 years ago

Examine the pattern in the powers of i you wrote in the table, and create a rule for finding the value of large powers of i. Jus

denpristay [2]

Let $N$ be any integer. Then

$i^N=\begin{cases}1&\text{if }N\equiv0\mod4\\i&\text{if }N\equiv1\mod4\\-1&\text{if }N\equiv2\mod4\\-i&\text{if }N\equiv3\mod4\end{cases}$

In other words:

(1) If $N$ is a multiple of 4, then $i^N=1$ .

(2) If dividing $N$ by 4 leaves a remainder of 1, then $i^N=i$ , since $i^N=i^{4n+1}$ for some integer $n$ , and from (1) we know that $i^{4n+1}=i^{4n}i=i$ (because, obviously, $4n$ is a multiple of 4).

(3) If instead you get a remainder of 2, then $i^N=-1$ . This follows from (1) as well. $i^N=i^{4n+2}=i^{4n}i^2=(1)(-1)=-1$ .

(4) Finally, if you get a remainder of 3, then $i^N=i^{4n+3}=i^{4n}i^2i=(1)(-1)(i)=-i$ .

5 0

3 years ago

If f(x) = 7(x - 2) + 4(x + 1), what is f(2)? A. 9 B. 10 C. 12 D. 11

KatRina [158]

Answer:

C) 12

Step-by-step explanation:

These type of questions is basically asking you to replace x with 2. f(x) is the same thing as y = but inside the f(x) is the value of x. So in this case, the numerical value of x is 2. All we need to do is replace x with it's numerical value, 2, and solve the equation.

$y=7(2-2) + 4(2+1)\\y=7(0) + 4(3)\\y = 12$