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lesya692 [45]
2 years ago
13

Someone help me with these

Mathematics
1 answer:
Oksana_A [137]2 years ago
6 0

Step-by-step explanation:

please give me brainlest

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Divide z by 11. Then, add 8.
yulyashka [42]
This may be the answer,hope it helps

8 0
3 years ago
OH NO!!! Madeleine’s data has been corrupted, again! Using the incomplete data file below, which she was able to recover from he
-Dominant- [34]

Answer:

a. N=25

b. X[bar]= 60.52

c. Y[bar]= 106.72

d. SSx= 115.24

e. ∑X*∑Y = 4036684

f. SSxy= 202020.3296

g. √(SSx*SSy)= 449.46

Step-by-step explanation:

Hello!

Using the attached data you need to calculate some statistics.

a) N

The sample size is listed under the first column "subject" You can see that 25 subjects qhere studied so N=25.

b.

The mean of set X is equal to X[bar]= ∑X/n= 1513/25= 60.52

∑X is listed in the second table.

c.

The mean of ser Y is Y[bar]= ∑Y/n= 2668/25= 106.72

∑Y is listed in the second table.

d.

Sum of Squares of set X SSx= ∑X²-[(∑X)²/n]= 91682-[(1513)²/25]= 115.24

e.

∑X*∑Y =1513*2668= 4036684

f.

SSxy= (∑X²-[(∑X)²/n]) * (∑Y²-[(∑Y)²/n])= (91682-[(1513)²/25]) * (286482*[(2668)²/25])= 202020.3296

g.

√(SSx*SSy)= √(115.24*1753)= 449.46

I hope you have a SUPER day!

3 0
3 years ago
Plz help!!!! (click on the pic)
goblinko [34]

Answer:

x^2+8x

Step-by-step explanation:

instructions included above :)

7 0
3 years ago
Do this work If one do I will make brainliest her or him please
denpristay [2]

Answer:

If you need the explanation, just ask.

6 0
2 years ago
Solve this for x. I have had 3 tries and can’t get the right answer.
Tanya [424]
Let's do both. For the first one, we can add 1 to both sides using the property of equality, and get 4x < -12. Then, we divide by 4, getting us x<-3. For the second, we subtract 3 from both sides to get -2x < 4. Then, we divide by -2 on both sides, but when we divide by a negative we have to switch the sign. So, we get x > -2. Hope this helps.
4 0
3 years ago
Read 2 more answers
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