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Illusion [34]
2 years ago
9

Given the table below, determine which type of equation best models the data and use a calculator to find an equation of best fi

t.

Mathematics
1 answer:
irina1246 [14]2 years ago
4 0

Answer:

Hello,

Step-by-step explanation:

Best fit: quadratic y=5.3x²-9.3+6.1

with an total error  of 0.4

Download xls
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Find the area of the figure. Use 3.14 for A.
Masteriza [31]

Answer:

38.13 m^2

Step-by-step explanation:

the area of a triangle =b*h/2

b=base

h=height

area triangle=(4m*3m)/2=(12m^2)/2=6m^2

the area of a rectangle =b*h

b=base

h=height

area of a rectangle=6m*3m=18m^2

area of a semi circle=(pi*r^2)/2

r=radius

area of a semi circle==(3.14*(3m)^2)/2=14.13m^2

area of the figure=6m^2+18m^2+14.13m^2=38.13m^2

the answer is 38.13m^2

8 0
3 years ago
SELECT ALL THAT APPLY. In a population of 250 students, 60% are Whites, 20% are Latinos, 15% are Blacks, and 5% others. In a pro
Sophie [7]

In a proportionate stratified sample of 120, there are 72 Whites, 24 Latinos, 18 Blacks and 6  others.

Proportionate Stratified Sample

A proportionate stratified sample is one in which the size of the strata in the sample is proportional to the size of the strata in the population; in other words, the chance of selecting a unit from a stratum depends on the relative size of that stratum in the population.

Calculating the Proportionate Stratified Sample

The given percentage of -

Whites = 60%

Latinos = 20%

Blacks = 5%

Strength of the sample = 120

⇒ Number of Whites = 60% of 120

= 0.6 × 120

=72

Number of Latinos = 20% of 120

= 0.2 × 120

=24

Proportionate Stratified Sample of Blacks and Others

Count of Blacks = 15 % of 120

= 0.15 × 120

= 18

Count of others = 5% of 120

= 0.05 × 120

6

Thus, in a Proportionate Stratified Sample of 120, 72 are Whites, 24 are Latinos, 18 are Blacks, and 6 are others.

Learn more about Proportionate Stratified Sample here:

brainly.com/question/20692763

#SPJ4

6 0
1 year ago
Fallen attempts 20 shots and made 7 he says he made 35% of the shots he took is he correct explain Sorry I suck at percents
Virty [35]
Yes he is right because 100/20 is 5 and 7 times 5 is 35%
5 0
3 years ago
Help me with this algebra.(i put a Picture with it)​
Fantom [35]

Answer:

no Luke is not correct.

Step-by-step explanation:

4r + 5 + 2r \\ colecting \: like \: terms \: \\ 4r + 2r + 5 \\ 6r + 5

5 0
2 years ago
Read 2 more answers
20. Entry to the fair is $10, and then you can
Fantom [35]

Answer:

they purchased 40 tickets

Step-by-step explanation:

they already spent 10 to get in the fair and 0.25 × 40 = 10 so 10 +10 =20

7 0
2 years ago
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