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Lisa [10]
3 years ago
5

Question 7

Mathematics
1 answer:
Deffense [45]3 years ago
8 0

Q7.

The domain of the function y = sin x - 2 is x ≥ 2.

Answer: FALSE because is All Real Numbers

Q8.

The domain of the function y = cos x + 1 is All Real Numbers.

Answer: TRUE

Q9.

What's the domain of the function y = sin x?

Answer: All Real Numbers

Q10.

What is the range of the function y = sin x?

Answer: -1 ≤ y ≤ 1

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What is the equation in slope-intercept form of the linear function represented by the table?
umka2103 [35]

Answer:

y = -x + 9

Step-by-step explanation:

You are given (-5,14), (-2,11), (1,8), and (4,5).  Your first objective is to find the slope.

Slope is delta y divided by delta x - the amount of height the graph gains divided by the amount of horizontal length the graph gains.  Take any two points and plug it into this: \frac{y_{2}-y_{1} }{x_{2}-x_{1}}.

i.e. (-2,11) and (4,5): \frac{11-5}{-2-4} which is \frac{6}{-6}, or -1.  Thus, the slope is -1.

We now have y = -1(x) + b, or just y = -x + b.

Next, find the y-intercept.  Set the value of x to 0, as the y-intercept is found along the y-axis, which is at the horizontal center of the graph, 0.  We now know that the y-intercept is (0,y).  To find the y-value, plug one of the coordinate pairs of choice into x and y.

i.e. (-5,14): 14 = (-1)(-5) + b

14 = 5 + b

14 - 5 = 5 + b - 5

9 = b

So, the y-intercept is (0,9).

Finally, the equation is:

y = -x + 9

7 0
2 years ago
Ashley's mother tells her to see 3/5 of her dollar how much is that
oksian1 [2.3K]
Your answer will be D 0.60

A dollar is 1.00 so 0.60 will be 3/5
5 0
3 years ago
How does 5.24 x 10 to the 3rd power equals 5,240
Verdich [7]

Answer:

5.24*10³= 5.24*1000= 5240 as decimal shifts towards right

524000/10²=524000/100=5240

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Please help im almost done​
irga5000 [103]

Answer:

1/4

Step-by-step explanation:

the numerator is 12 because there are 12 possible outcomes.  The numerator is 3 because there are 3 numbers in this set that are greater than 9.  You get 3/12 which then simplifies to 1/4

8 0
3 years ago
Hector needs to buy a window shade in his house. He measured the width of the window as 37 inches. The actual measurement is 40
aksik [14]

Answer:

3/40 = 7.5%

Step-by-step explanation:

3/40 percent error.

3/40 = 7.5%

6 0
3 years ago
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