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vaieri [72.5K]
3 years ago
6

help worth 50 points no links and don't comment if you do not know there are people who know that can answer if they want

Mathematics
1 answer:
valina [46]3 years ago
8 0

3.a) Duane's score is transformed to

<em>z</em> = (84 - 80)/4 = 4/4 = 1.00

3.b) Debbie's score transforms to

<em>z</em> = (90 - 85)/8 = 5/8 ≈ 0.63

3.c) Duane's score is relatively higher than Debbie's, since his standardized (<em>z</em>) score is higher. (Recall that <em>z</em>-scores corresponds to a normally distributed random variable with mean 0 and s.d. 1.)

4. The <em>p</em>-th percentile of any given distribution refers to the top (100 - <em>p</em>)% of the distribution. So if the 75th percentile of SAT scores is 1400, this means that the top 25% of scores are above 1400.

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{[8-3)x2]+[(5x6)-5]}÷5=
KIM [24]


the answer is 7

8-3=5

5x2=10

10+(5x6)-5=35

35/5=7

3 0
4 years ago
16^10 x 16^4 need the work
Alex787 [66]

Answer:

16^{10}*16^{4}  \\= 16^{14}

Property used: a^{m} * a^{n} = a^{m+n}

3 0
3 years ago
Easiest question in the world no joke this time
Volgvan

Question #25:

One way to solve this is by multiplying the number of packages per serving by the number of guests.

1/4 * 16 = 4 packages to serve 16 guests. This means he doesn't have enough.

A second way to solve this is by diving the number of packages by the number of packages it takes to make on serving.

3 1/2 ÷ 1/4 = 14 guests he can serve. This means he doesn't have enough.

Question #26:

First, find common denominators.

2/3 = 8/12

1/4 = 3/12

Second, subtract.

8/12 - 3/12 = 5/12

Therefore, the tank is 5/12 full at the end of the trip.

Question #27:

1/2 is cut off then 1/3 is cut off. This means 3/6 was cut off to bundle newspapers, then 1/6 was cut off to make parcel. In all, 4/6 was cut off the original string. Afterwards, 2/6 was left over. So, just multiply; 2 * 3 = 6.

Therefore, the original string was as a total of 6 meters.

Best of Luck!

3 0
3 years ago
Decompose the number 419 in 10 models
Papessa [141]
100
100
100
100
3
2
5
3
3
3

I think this is what you're asking.. If not.. I'm sorry.

5 0
3 years ago
Frank is lending $1,000 to Sarah for two years. Frank and Sarah agree that Frank should earn a real return of 4 percent per year
Montano1993 [528]

Answer:

nominal rate of interest is 31.7 %

Step-by-step explanation:

given data

payment = $1000

time = 2 year

rate = 4%

CPI = 100

CPI final yer = 127.7

to find out

nominal rate of interest

solution

we know nominal rate of interest formula that is

nominal rate of interest = real interest rate + inflation rate    .........1

so here inflation rate is express as

inflation rate = ( CPI final year - CPI )  / CPI  × 100    ...........2

put here value

inflation rate = ( 127.7 - 100 )  / 100  × 100

inflation rate is 27.7 %

so from equation 1

nominal rate of interest = real interest rate + inflation rate

nominal rate of interest = 4% + 27.7%

nominal rate of interest is 31.7 %

7 0
3 years ago
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