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mafiozo [28]
3 years ago
8

Plug in a test point to find the region to be shaded

Mathematics
1 answer:
Valentin [98]3 years ago
4 0

is there a picture we can use to understand this?

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-10 -9 -8 7 Slope of the Line: Click twice to plot each segment. Click a segment to delete it. y -6 5 3 2 -1 10 9 8 7 6 5 J 2 -8
frutty [35]

Answer:

  1/2

Step-by-step explanation:

The slope of a line is the ratio of "rise" to "run".

__

This line goes through grid intersections at (0, -7) and (2, -6), a rise of 1 unit for a run of 2 units to the right. The slope is ...

  slope = rise/run = 1/2

3 0
2 years ago
HELP ASAP PLEASE (answer all parts please)
Dmitry [639]
The parameter used in the probability is the average number of students represented by u.
How to calculate the probability?
The confidence interval based on the information will be:
= 3.85 - 2.09(1.348 / ✓20)
= 3.22
Also, 3.85 + 2.09(1.348 / ✓20) = 4.48
The confidence interval simply means that one is 95% confident that the true mean is between 3.22 and 4.48.
8 0
1 year ago
Maria invested $2,000 in an account that earns 4.5% interest compounded annually the formula for compounded interest isA(t)=P(1+
ankoles [38]
In the formula, P is the initial amount, i is the rate, and t is the time that has passed.  Simply plug in the values you know:

A(5) = 2000(1 + .045)^5 \\  \\ A(5) = 2000(1 .045)^5 \\  \\ A(5) = 2492.36387531 \\  \\ A(5) \approx 2492.36

Rounded to the nearest cent, Maria had $2492.36 in her account after 5 years (D).
4 0
3 years ago
-1220 estimated to the nearest integer
zlopas [31]

Answer:

1000

Step-by-step explanation:

1 is the nearest in 1.2

8 0
3 years ago
Help guys with the question
Naya [18.7K]

Answer:

\sin\Big(\dfrac{\theta }{2}\Big) = \dfrac{2\sqrt 5}{5}

Step-by-step explanation:

\cos(2x) = \cos^2 x-\sin^2 x = 1-2\sin^2 x \\ \\ \cos(x) = 1-2\sin^2 (\frac{x}{2}) \\ \\ \Rightarrow \sin^2 (\frac{x}{2}) = \dfrac{1-\cos(x)}{2}\\ \\ \sin(\frac{x}{2}) = \pm \sqrt{\dfrac{1-\cos(x)}{2}},\quad x\in [\frac{3\pi }{2},\pi] \Rightarrow \frac{x}{2}\in [\frac{3\pi}{4},\frac{\pi}{2}]\\ \\ \Rightarrow \sin(\frac{x}{2}) > 0 \Rightarrow \sin(\frac{x}{2}) = \sqrt{\dfrac{1-(-\frac{3}{5})}{2}} \Rightarrow \sin(\frac{x}{2}) = \sqrt{\dfrac{8}{10}}=\dfrac{2\sqrt 2}{\sqrt{10}} = \\ \\ =\dfrac{2\sqrt 5}{5}

7 0
3 years ago
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