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Gwar [14]
3 years ago
8

The question is down below please help

Mathematics
2 answers:
Inessa [10]3 years ago
6 0

Answer:

last one

Step-by-step explanation:

Vlad1618 [11]3 years ago
6 0

Answer:

4 (6-k)

the bottom one

Step-by-step explanation:

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Mark is in training for a bicycle race. He needs to ride 50 kilometers a week as part of his training. He rode 18.23 kilometers
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the answer is B-about 18km


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3 years ago
75% of n is 45. n is what percent of 90?​
Law Incorporation [45]

Answer:

66.67%

Step-by-step explanation:

75 /100 = .75

.75n = 45

45/.75 = 60

60 is n

60/90 = .666667

.666667 * 100 = 66.67%

3 0
3 years ago
Read 2 more answers
What happens to the width of a confidence interval for a population mean if the level of confidence is increased without changin
natulia [17]

Answer: If the level of confidence is increased without changing the sample size then<em> </em><u><em>The margin of error will decrease because the critical value will decrease. The decreased margin of error will cause the confidence interval to be narrower.</em></u>

where;

<em>Margin of error = Critical value × Standard deviation</em>

<em>Here, it can be duly noted that Margin of error has a positive relation with critical value, i.e </em><u><em>The margin of error will decrease because the critical value will decrease.</em></u>

<u><em>whereas;</em></u>

The confidence interval is  <em>the value  ±  the margin of error.</em>

<em>Therefore, </em><u><em>the decreased margin of error will cause the confidence interval to be narrower.</em></u>

7 0
3 years ago
NO LINKS OR FILES. Explain how to evaluate 5p + (-6) when p = -4. Please give an explanation.
alexdok [17]

Answer:

-26

Step-by-step explanation:

5p + (-6)

Let p=-4

5(-4) + (-6)

Multiply

-20 +-6

Add

-26

8 0
2 years ago
Read 2 more answers
PLEASE HELP THIS IS A FINAL AND IM SO CONFUSED!!!!
Akimi4 [234]

Answer:

C

Step-by-step explanation:

yeah-ya............... right?

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2 years ago
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