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Aleksandr [31]
3 years ago
12

The distance to the moon is an average of 384,400 kilometers, round to the nearest thousand

Mathematics
1 answer:
BigorU [14]3 years ago
4 0

Answer:

384000

Step-by-step explanation:

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A company is developing a new high-performance wax for cross country ski racing. In order to justify the price marketing wants,
andrew11 [14]

Answer:

A)Yes they should market the wax, because it melts before 55 seconds

C) Null hypothesis: mean <55 vs. Alternative hypothesis :mean =55

D) the value is 51.33 seconds

Step-by-step explanation:

The selected samples for the champion are : 57.9, 62.9, 50.6, 50.5,48.2,47.2,50.2 and 43.1

The mean is ;

Sum =57.9 + 62.9 + 50.6 + 50.5+48.2+47.2+50.2+ 43.1 =410.6

Mean= 410.6/8 =51.33= mean

Assuming Significant =0.05 thus applying this level will give you 51.28-51.38

if specifically, the mean time to finish their standard test course should be less than 55 seconds for a former Olympic champion, then the null hypothesis is correct

Then;

Null hypothesis: mean <55

Alternative hypothesis :mean =55

7 0
3 years ago
Z3=-64 help please I will give brainliest
snow_lady [41]

Answer:

-4

Step-by-step explanation:

<h2><u>An exponent is multiplying a number by itself as many times as the exponent says so.</u></h2><h2><u /></h2><h2><u>So we need to find a number that times itself 3 times.</u></h2>

-4 fits this.

-4 x -4 x -4

==> -64

z = -4

6 0
3 years ago
Read 2 more answers
If the distance from D to D' is 10 and the distance from A to D is 5, what is the scale factor?
Mariana [72]

Answer:

1/3

Step-by-step explanation:

hope it helps

6 0
3 years ago
Need answers to question below :) will give crown to the first one to answer
Rudik [331]
Unfortunately I'm unable to understand
4 0
3 years ago
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Please help me create a truth table for the statement p^(qv~p)
enyata [817]
Hello,

1)  p∧(q∨¬p)=(p∧q)∨(p∧¬p)=p∧q proof:

2)

p|q|¬p|q∨¬p|p∧(q∨¬p)|p∧q
0|0|..1|.......1|..............0|0
0|1|..1|.......1|..............0|0
1|0|..0|.......0|..............0|0
1|1|..0|.......1|..............1|1



7 0
3 years ago
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