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VashaNatasha [74]
3 years ago
15

Find the discriminant. 7z2–7z+1=0

Mathematics
1 answer:
Yuki888 [10]3 years ago
7 0

Answer:

21

Step-by-step explanation:

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Ms. Potts washed 1/4 of her laundry. Her son washed 3/7 of it. Who washed most of the laundry? How much of the laundry still nee
LenaWriter [7]

Answer:

  • Son washed more
  • Remaining 9/28 of the laundry

Step-by-step explanation:

<u>Make denominators common to see the difference in fractions:</u>

  • 1/4 = 7/28
  • 3/7 = 12/28

Son washed more laundry as 12/28 > 7/28

<u>Together they washed:</u>

  • 7/28 + 12/28 = 19/28 of the laundry

<u>Remaining part is:</u>

  • 1 - 19/28 =
  • 28/28 - 19/28 =
  • 9/28 of the laundry
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3 years ago
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Four puzzles that were manufactured contained a total of 420 pieces. The next 6 puzzles contained a total of 630 pieces. If the
Anastasy [175]

Answer:

ANWSER A

Step-by-step explanation:

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3 years ago
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. True or False? Write your response next to the statements below. A) Sam computed a 90% confidence interval for µ from a specif
Aleks04 [339]

Answer:

A) True , B) True , C) False

Step-by-step explanation:

A) True : Confidence Interval is the interval range around sample statistic, which is certain by extent of confidence level, to consist the actual population parameter.

B) True : Confidence Interval is the interval range around sample statistic, which is certain by extent of confidence level, to consist the actual population parameter.

C) False : Null Hypothesis can be accepted, despite of being actually false. This is called Type 2 Error.

6 0
3 years ago
A store sells comic books. Each comic book costs the same amount. During a sale, the store reduces the price of each comic book
Kruka [31]

Answer:

the original price is $7.89

the price on sale is $6.44

i hope this helps

Step-by-step explanation:

divide $12.88 by 2 to get the price of one of those comic books on sale which gives you $6.44

if you want the original price you just add $1.45 to $6.44 and then thats the price before the sale.

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3 years ago
What is the greatest common factor of 54x^2<br> Which means squared
musickatia [10]

Answer:

18 should be the answer

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