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3 years ago

Please help my grade is a 68 i need a 70 at least

Mathematics

1 answer:

aleksklad [387]3 years ago

8 0

Answer:

10s²-6s+9

Step-by-step explanation:

C = -3 + 5s²

B = -2s + 5

2(-3 + 5s²) = -6 + 10s²

3(-2s + 5) = -6s + 15

10s² - 6s + 9

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Appropriate Average. For each of the following distributions, decide whether you expect the mean, median, or mode to give the be

Genrish500 [490]

The average measures the expected value of a determined variable. Shows the "most likelly observation" of said distribution.

The median is a measure of center values that divides the sample in exact halves. When the distribution of the variable of interest is irregular or doesn't follow a determined pattern, it allows you to determine a basic distribution of the values.

The mode is the value or values with the most observed absolute frequency, this is, the value or values that are most repeated.

Examples

"Per capita earnings in New yourk City"

For this variable you could use the mode as a value of center tendency so that you will be able to determine the most frequent incomes or the mean, that will allow you to determine or predict the expected earnings.

23. "Number of times people change jobs during their carrers"

This variable doesn't have a determined distribution, meaning, there is not a natural variation in it, people changes jobs when the oportunity comes but it is relativelly random.

The best measure of center tendency for this variable will be the Median.

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4 0

1 year ago

3. Alice took out a simple interest loan to purchase carpet for her house. The interest on the loan

hjlf

Answer:

The price of the carpet was $\$3,697.20$

Step-by-step explanation:

we know that

The simple interest formula is equal to

$I=P(rt)$

where

I is the Final Interest Value

P is the Price of the carpet

r is the rate of interest

t is Number of Time Periods

in this problem we have

$t=3\ years\\ P=\$?\\ I=\$1,081.43\\r=0.0975$

substitute in the formula above

$1,081.43=P(0.0975*3)$

$1,081.43=P(0.2925)$

Solve for P

$P=1,081.43/(0.2925)$

$P=\$3,697.20$

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3 years ago

One of the events at a swim meet is the 500 meter freestyle. Use conversion factors and dimensional analysis to determine the le

BARSIC [14]

Answer:

1) Distance in feet equals 1640.4 feet

2) Distance in miles equals 0.3107 miles.

Step-by-step explanation:

From the basic conversion factors we know that

1 meter = 3.2808 feet

Thus by proportion we conclude that

$500meters=500\times 3.2808feet\\\\\therefore 500meters=1640.4feet$

Similarly using the basic conversion factors we know that

1 mile = 1609.34 meters

thus we conclude that 1 meter = $\frac{1}{1609.34}$ miles

Hence by proportion 500 meters = $500\times \frac{1}{1609.34}=0.3107$ miles

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4 years ago

A farmer wants to make a rectangular field with a total area of 800m2. It is surrounded by a fence. It is divided into 3 equal a

Vlad1618 [11]

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3 years ago

You can rewrite the trajectory equation as y = -16(x-1)^2 + 19

dsp73

I believe the answer is -16x+35

7 0

2 years ago