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3 years ago

PLEASE HELP!

Mathematics

1 answer:

Alex_Xolod [135]3 years ago

5 0

Answer:

D. 22%

Step-by-step explanation:

89 of the 374 cars in the table are red. Without knowing more about the sampling process used to obtain the table data, the best we can do is assume that proportion holds for the whole country.

... 89/374 ≈ 22% . . . . matches selection D

_____

Using these numbers gives higher weight to larger samples, which does not seem unreasonable—unless the larger sample favors red cars for some reason.

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After changing its format, a radio station lost 34% of its listeners. If there were an estimated 83,000 listeners originally, ho

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3 years ago

Which is an equation of the line that passes through the points (-1,9) and (4, 24)?

choli [55]

Answer:

y = 3x + 12

Step-by-step explanation:

Slope (m) = 24-9/4-(-1)

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= 3

Using point (-1 , 9)

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3 years ago

Find all the zeroes of the polynomial function f(x)=x^3-5x^2+6x-30 in you use synthetic division show all three lines of numbers

jonny [76]

Answer:

5, $i\sqrt 6$ and $-i\sqrt 6$

Step-by-step explanation:

We are given that the polynomial

$f(x)=x^3-5x^2+6x-30$

We have to find the all the zeroes of the polynomial function.

$f(x)=0$

$x^3-5x^2+6x-30=0$

$x^2(x-5)+6(x-5)=0$

$(x-5)(x^2+6)=0$

$x-5=0$

$x=5$

$x^2+6=0$

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$x=\pm\sqrt{-6}=\pm i\sqrt6$

Using $\sqrt{-1}=i$

Hence, all the zeroes of the polynomial function are

5, $i\sqrt 6$ and $-i\sqrt 6$

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3 years ago

What is the surface area of a cube with a side length of 10 inches?

Romashka [77]

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4 years ago

Read 2 more answers

The compound periods multiplied by the number of years is 4t. The initial number of cars serviced is 920. The growth factor is r

Mrac [35]

The number of compounding per year is $N = 920(1+0.03)^4t$

<h3>How can the number of compounding per year be calculated?</h3>

This can be calculated by making use of the formular; 920(1.03)^4t and use the compound interest equation which is N=P( 1+r/n)^nt

We know that 12% was given as the rate per year, then to get the quarter rate we divide by factor of 4, which is 12/4= 3%

The compounding for t years = n*t = 4t where n=4.

and the Initial number of cars serviced=920

Then we can substitute the values into the above equation, we have Thus $N = 920(1+0.03)^4t$

Learn more about compound interest at:

brainly.com/question/13023589

#SPJ1

CHECK THE COMPLETE QUESTION BELOW:

Drag the tiles to the boxes to form correct pairs. Not all tiles will be used. A car repair center services 920 cars in 2012. The number of cars serviced increases quarterly at a rate of 12% per year after 2012. Create an exponential expression to model the number of cars serviced after t years. Then, match each part of the exponential expression to what it represents in the context of the situation. 920(1.03) is the number of cars multiplied by 1.03. The quarterly rate of growth is 0.03 or 3%. The compound periods multiplied by the number of years is 4t. The initial number of cars serviced is 920. The growth factor is represented by 1.03. The growth rate is 1.03. Exponent arrowRight Base arrowRight Coefficient arrowRight Rate arrowRight

7 0

2 years ago