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Liono4ka [1.6K]
3 years ago
7

Which line shows the first error in the solution?

Mathematics
1 answer:
Andrew [12]3 years ago
4 0
The part of the solution that is incorrect is (5). This is because -10 -8 = -18. :)
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The price p of pizza is $7.25 plus $0.70 for each t topping on the pizza write a function rule that represents the situation
IrinaK [193]

The answer is

p=7.25+0.70t

5 0
2 years ago
Luis wanted to buy a skateboard that usually sells for $79.99. All merchandise is discounted by 12%. What is the total cost of t
Oliga [24]
<span>79.99/6.75%=5.399325 if you want the exact but 5.40 if you want rounded</span>
8 0
3 years ago
Here are the total scores of 10 students in an introductory statistics course.
cestrela7 [59]

Answer:

Kindly check explanation

Step-by-step explanation:

Given that :

Mean (m) = 72

Standard deviation (sd) = 10

Grading cutoff policy:

bottom 5% receive F

next 15% receive D

next 35% receive C

next 30% receive B

A) Give the cutoffs for the grades in this course in terms of standardized scores.

Standardized score for grade cutoff:

Locating the Zscore for the proportions on the z table :

Bottom 5% = 0.05 ; corresponding Zscore = - 1.645

next 15% receive D = (5 +15)% 0.20 ; corresponding Zscore = - 0.84

next 35% receive C = (20+35)% = 0.55 ; corresponding Zscore = 0.13

next 30% receive B = (55 + 30)% = 0.85 ; Corresponding Zscore = 1.04

B) Give the cutoffs in terms of actual total scores.

Recall:

Zscore = (x - m) /sd ; where x = actual score

x = sd*z + m

For F:

10*(-1.645) + 72 = 55.55

For D:

10*(-0.84) + 72 = 63.6

For C:

10*(0.13) + 72 = 73.3

For B:

10*(1.04) + 72 = 82.4

C) Do you think that this method of assigning grades is a good one?

Yes, it is good in terms of expressing scores around the mean such that score below are negative and those above are positive. However, it is a little bit ambiguous.

4 0
3 years ago
The largest perfect square factor of 252 is _____
slega [8]

Answer:

18

Step-by-step explanation:

252 is a composite number. The exponents in the prime factorization are 2, 2, and 1. Adding one to each and multiplying we get (2 + 1)(2 + 1)(1 + 1) = 3 x 3 x 2 = 18. Therefore 252 has 18 factors.

5 0
3 years ago
Which of the following is equal to the fraction below? (3/4)^-5​
DaniilM [7]

Answer:

4.21399176955

Step-by-step explanation:

\frac{3}{4}^{-5}

0.75^{-5}

4.21399176955

6 0
3 years ago
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