You have a lot of questions here, try breaking them up into multiple posts and you may get more responses.
I will help with some.
<span>(x+3)=0
The solution is just -3.
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3m(m-4)=0
The two solutions are 0 and 4.
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(r-3)(r+2)=0
The two solutions are and 3 and -2.
</span>
I hope this gets you started in the right direction.
Answer:
16
Step-by-step explanation:
How many times more intense is an earthquake measuring 6.8 on the Richter scale than one measuring 5.6?
Given:
Earthquake 1 : magnitude = 6.8
Earthquake 2: magnitude = 5.6
The intensity of an earthquake
I1 / I2
log I1 /s = 6.8
log I2 /s = 5.6
(log I2 /s) - (log I1 /s) = 6.8 - 5.6
(log I2 /s) - (log I1 /s) = 1.2
log(I2 / I1) = 1.2
I2 / I1 = 10^1.2
I2 / I1 = 15.8489
= 16
6.8 earthquake is about 16 times more intense than earthquake measuring 5.6
1st Question:
the answer is 85 because the angle measure does not change even if you rotate the figure.
2nd Question:
The answer is A) reflection across y-axis and translation 7 units down
3rd Question:
The first answer choice is correct because the figure increases/decreases in length on all side lengths and the angle measures stay the same.
Question 10: (on the test online)
The answer is 12*6 or 72 because 30 (a'b') / 5 (ab) is 6 giving you the scale factor for the dilation.
Question 11:
The answer is a dilation
Question 12:
The answer is a dilation and a translation because you first increase the size of the figure then move it down and to the right.
Answer:
(85.62, 90.38).
Step-by-step explanation:
The missing data can be assumed to be we have the following information:
¯x =88, s=10, n=70
Substituting the values in the following formula, we compute the 95% C.I for true population mean diastolic pressure as shown below:
95% C.I.=¯x±t(0.95,n−1)⋅Sm=¯x±t(0.95,70−1)⋅s√n=88±1.99⋅10√70=(85.62,90.38)
The answer is (85.62, 90.38).