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Sedaia [141]
2 years ago
12

What is the next three-term of the geometric sequence? 60, 30, 15...?

Mathematics
1 answer:
Vesna [10]2 years ago
8 0

Answer:

7.5

Step-by-step explanation:

it is feometeic progression

r=0.5

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Good morning temperature is -15° but the afternoon the temperature raises by 20° right in addition expressions for the afternoon
stealth61 [152]

Answer:

+ 5°

Step-by-step explanation:

Given,

Good morning temperature = -15°

Raise in temperature = 20°

Afternoon temperature = -15° + 20°

           = + 5°

Hence, temperature in after noon is equal to + 5°.

7 0
2 years ago
Yesterday, Linda had 71 baseball cards. Today, she gave d away. Using d, write an expression for the number of cards Linda has l
dezoksy [38]

Answer:

71-d

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
The defect length of a corrosion defect in a pressurized steel pipe is normally distributed with mean value 30 mm and standard d
skelet666 [1.2K]

Answer:

z=-0.842

And if we solve for a we got

a=30 -0.842*7.8=23.432

So the value of height that separates the bottom 20% of data from the top 80% is 23.432.  

Step-by-step explanation:

Let X the random variable that represent the heights of a population, and for this case we know the distribution for X is given by:

X \sim N(30,7.8)  

Where \mu=30 and \sigma=7.8

For this part we want to find a value a, such that we satisfy this condition:

P(X>a)=0.80   (a)

P(X   (b)

As we can see on the figure attached the z value that satisfy the condition with 0.20 of the area on the left and 0.80 of the area on the right it's z=-0.842

If we use condition (b) from previous we have this:

P(X  

P(z

But we know which value of z satisfy the previous equation so then we can do this:

z=-0.842

And if we solve for a we got

a=30 -0.842*7.8=23.432

So the value of height that separates the bottom 20% of data from the top 80% is 23.432.  

8 0
3 years ago
If the point (x,/3/3) is on the unit circle what is x
Firlakuza [10]
The answer is B.

I  hope this helps. :)
6 0
3 years ago
Each square on the grid represents 1 ft2.
ra1l [238]
This one is a bit trickier but I do believe the answer is B. About 30 ft2 to 40ft2. Let me know if you need any more help!!!
6 0
3 years ago
Read 2 more answers
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