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Novay_Z [31]
2 years ago
10

Pre college need helppp

Mathematics
1 answer:
Brrunno [24]2 years ago
7 0

Answer:

check online for more information

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Help on this please asap
Juli2301 [7.4K]

Answer:

87.75

Step-by-step explanation:

You are correct

3 0
2 years ago
Cheryl had 22 charms. She used C charms to make a bracelet then she went to the store and bought 14 more charms. Now she has 25
antiseptic1488 [7]

Answer:

She used 11 charms.

Step-by-step explanation:

25-14=11

22-11=11

8 0
2 years ago
Read 2 more answers
how do you find the diameter of a circle using the equation x^2+y^2+8x-22y-88=0? I need it step by step please
Aloiza [94]
Check attached image file.

3 0
3 years ago
Read 2 more answers
Surveys were sent to a random sample of owners of all-wheel-drive (AWD) vehicles and to a random sample of owners of front-wheel
salantis [7]

Answer:

No, the confidence interval does not provide evidence that this belief is plausible as the confidence interval range contains the null value (0)

Step-by-step explanation:

Given that the confidence interval for the mean difference of AWD and FWD vehicles is :

(−0.01,0.12)

When defining the hypothesis for mean difference :

H0 : μ1 - μ2 = 0

H1 : μ1 - μ2 ≠ 0

Using the confidence interval result, reject the Null if the confidence interval value at the given α - level does not contain 0 ; otherwise fail to reject the Null ;

Since the (−0.01,0.12) contains 0 ; then we fail to reject the Null and conclude that there is no statistically significant difference between the two groups

8 0
2 years ago
Frankie is practicing for a 5 km race is normal time is 31 minutes 17 seconds yesterday it's a king only 29 minutes 49 seconds h
Rzqust [24]

Answer: He was 1 minute 28 seconds faster.

Step-by-step explanation:

Hi, to answer this question we simply have to subtract Frankie's time yesterday (29 minutes 49 seconds) to his normal time (31 minutes 17 seconds)  

Mathematically speaking:  

31m 17s - 29m 49s =

(31m-29 m) (17s-49s)=

2m -32s=

1m 60s -32s=

1m 28s

He was 1 minute 28 seconds faster.  

Feel free to ask for more if needed or if you did not understand something.  

Feel free to ask for more if needed or if you did not understand something.  

5 0
3 years ago
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