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Mandarinka [93]
3 years ago
12

PLZ HELP PLZ PLZ ILL MARK AS BRAINLIESTT!!

Mathematics
1 answer:
Yuki888 [10]3 years ago
5 0

Answer:

.3 feet

Step-by-step explanation:

3.8 - 3.5 = .3

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Suppose you have a mailing that you want to weigh no more
sertanlavr [38]
83838jdjdjjdd I didndjd
7 0
3 years ago
Refer to the accompanying data set of mean​ drive-through service times at dinner in seconds at two fast food restaurants. const
Anton [14]

Step-by-step explanation:

Assuming the data is as shown, restaurant X has a mean service time of 180.56, with a standard deviation of 62.6.

The standard error is SE = s/√n = 62.6/√50 = 8.85.

At 95% confidence, the critical value is z = 1.960.

Therefore, the confidence interval is:

180.56 ± 1.960 × 8.85

180.56 ± 17.35

(163, 198)

Restaurant Y has a mean service time of 152.96, with a standard deviation of 49.2.

The standard error is SE = s/√n = 49.2/√50 = 6.96.

At 95% confidence, the critical value is z = 1.960.

Therefore, the confidence interval is:

152.96 ± 1.960 × 6.96

152.96 ± 13.64

(139, 167)

4 0
3 years ago
Help meeeeffffeeeeeeeeeeeee
My name is Ann [436]

Answer:

. . . . . . . . . . . . .Loading answer. . . . . . . . .

Step-by-step explanation:

7 0
3 years ago
In a test (+5) marks are given for every correct answer and (-2) marks are given for every incorrect answer. Radhika answered al
kvv77 [185]

Answer:

10 incorrect answers

Step-by-step explanation:

From the information given, you can say that 5 marks for the number of correct answers minus two marks for the number of incorrect answers is equal to 30 that is the score that Radhika got:

(5*10)-2x= 30, where x is the number of incorrect answers.

Now, you can solve for x:

50-2x=30

50-30=2x

20=2x

x=20/2

x=10

According to this, the answer is that they attempted 10 incorrect answers.

4 0
3 years ago
Andrea has 18 yards of fabric. How many 4-inch pieces can she cut from her original piece?
Mrac [35]

Answer:

162 pieces

Step-by-step explanation:

Andrea has 18 yards

How many 4 inch pieces can she get?

Convert

1 yard = 3 feet

18 yards = 54 feet

1 foot = 12 inches

54 feet = 648 inches

Divide

648 inches ÷ 4 inches =  162 pieces

Hope this helps :)

6 0
3 years ago
Read 2 more answers
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