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Vladimir79 [104]
2 years ago
12

Taylor has nickels and dimes. The number of nickels is 7 less then eight times the number of dimes. If d represents the number o

f dimes then the number of nickels can be expressed as what
Mathematics
1 answer:
svp [43]2 years ago
4 0

Answer: 8d-7

Step-by-step explanation:

Given

Taylor has nickels and dimes

Number of nickels is 7 less than eight times the number of dimes

If d is the number of dimes, then number of nickels is given by

\Rightarrow \text{Number of Nickels = }8d-7

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Y=4x(8-x). Linear or nonlinear? explain.
NemiM [27]

Answer:

not linear

Step-by-step explanation:

this equation becomes y = -4x² + 32x which is a quadratic equation that, when graphed, forms an upside down u-shaped curve (upside down because the x² term is negative; if it's positive then the curve is u-shaped)

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3 years ago
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I need help on these two questions please
Simora [160]

Answer:

<h2>For #1=     D = 24.25</h2><h2>     #2=       D= 21</h2>

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Enlarge the triangle by scale factor 0.5 using (3, 1)
Viefleur [7K]

The center after enlargement using scale factor is (4.5,0.5).

What is Scale factor ?

  The ratio between the scale of an original thing and a new object that is a representation of it but is a different size is known as a scale factor (bigger or smaller). For instance, if a rectangle has sides of 2 cm and 4 cm, it can be made larger by multiplying each side by a certain number, in this case 2.

Here the given coordinate point is,

=> (x,y)=(3,1)

Now enlarging the coordinator using scale factor k

=> (x,y)= (kx,ky)

Now put k=2 then

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Hence the answer is (4.5,0.5).

To learn more about scale factor

brainly.com/question/23652612

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6 0
1 year ago
Given here are a set of sample data: 12.0, 18.3, 29.6, 14.3, and 27.8. the sample standard deviation for this data is equal to _
disa [49]
The answer is 7.9306

Using the formula in the attached:
Where: xi = sample value; μ = sample mean; n = sample size

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μ = 12.0 + 18.3 + 29.6 + 14.3 + 27.8 / 5
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μ = 20.4

2.) Using the mean, calculate (xi - μ)² for each value:
(12.0 - 20.4)² = 70.56
(18.3 - 20.4)² = 4.41
(29.6 - 20.4)² = 84.64
(14.3 - 20.4)² = 37.21
(27.8 - 20.4)² = 54.76

3.) Sum the squared differences and divide by n - 1.
μ = 70.56 + 4.41 + 84.64 + 37.21 + 54.76
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4.) Get the square root of the sample variance:
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One sixth of the lions are male. how many lions are at the zoo
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