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tia_tia [17]
3 years ago
10

Don't understand please help

Mathematics
1 answer:
alex41 [277]3 years ago
3 0
The answer is 42 bc 42-6 is 36
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When conducting a two-tailed z test with a = 0.01, the test value was computed to be 2.07. The decision would be to reject or to
vekshin1
You reject the Null Hypothesis only if the p-value is less than alpha.
p < 0.01

To find the p-value, you need to look up test value 2.07 in a standard normal table. The p-value is probability that Z > 2.07. For a two-tailed test, you include both positive and negative cases. |Z| > 2.07.

When you look up 2.07 you get about 0.98.
This means there is about 2% chance Z > 2.07 or 4% chance |Z| > 2.07.

For the two-tailed test we use p = 0.04
.04 > .01
Therefore we do Not reject the Null Hypothesis.
3 0
3 years ago
What is the point slope form of the line with slope 25 that passes through the point (−4, −7)?
vlada-n [284]

Answer:

y = mx + c \\  - 7 =  - 4 \times 25 + c \\  - 7 =  - 100 + c \\ c =  - 7 + 100 \\ c = 93

7 0
3 years ago
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NO MULTIPLE CHOICE<br><br><br> Find the length of AB label sides find angles HELP ME PLEASE
Ugo [173]

Answer:

8.4 (rounded to 1 dp)

Step-by-step explanation:

1) Identify the number of angles and sides given if you cannot use Pythagoras or SohCahToa.

2) You have 2 angles and 1 side, so you know you must use sine rule: <em>a </em>over sinA =<em> b </em>over sinB

<em>a</em> = side length, sin(A) = angle opposite side

<em>b</em> = side length, sin(B) = angle opposite side

3) This means:

13/sin(90) = x/sin(40)

4) rearrange for x:

x = 13/sin(90) * sin(40)

  = 8.356...

5) Round to however many sig figs/dps they're asking for

Example: 1 dp

AB = 8.4

3 sig figs

AB = 8.36

7 0
3 years ago
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Use definition of the derivatives to find the derivative of each function with respect to x.
yanalaym [24]
Answer:
The slope is 5
Step-by-step explanation:
This equation is in slope intercept form
y = mx +b
where m is the slope and b is the y intercept
y = 5x+4
where 5 is the slope and 4 is the y intercept
6 0
3 years ago
If a figure has a scale factor of 2 it is an
bonufazy [111]
The question isn’t clear but If you’re talking about triangles then it would be an enlargement
5 0
3 years ago
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