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Ghella [55]
3 years ago
13

Helppppp please ASAP

Mathematics
1 answer:
ivolga24 [154]3 years ago
4 0

Answer:

Step-by-step explanation:

An exponential equation has the form

y=ar^x where y=final value, a=initial value, r=rate, and x=time, in this case

y=28000(0.73^x)

So the initial value is 28000 and r=0.73. Since 0.73 is less than one this is an exponential decay representing a 27% loss per year. So B and F are correct.

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Hope it helps
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3 years ago
At the fabric store, Marisela spends $9.00 on 1 1/8 yards of fabric. How much does one yard of fabric cost?
Margaret [11]

Answer:

8 dollars

Step-by-step explanation:

First, convert the yards to decimals, 1/8 is equivalent to .125, therefore 1 1/8 yards is 1.125

Next, since we know that 1 1/8 yards of fabric is $9, we can divide 9 by 1.125 in order to find the cost of one yard of fabric

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3 years ago
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3 years ago
Given the equation 4x2 − 8x + 20 = 0, what are the values of h and k when the equation is written in vertex form a(x − h)2 + k =
GenaCL600 [577]

Answer:

The correct option is:

h = 1, k = 16

Step-by-step explanation:

y=4x^2-8x+20 =0

It is a quadratic formula in standard form:

ax^2+bx+c

where a = 4 , b = -8 and c=20

The vertex form is:

a(x − h)2 + k = 0

h is the axis of symmetry and (h,k) is the vertex.

Calculate h according to the following formula:

h = -b/2a

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Substitute k for y and insert the value of h for x in the standard form:

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k = 4(1)^2+(-8)(1)+20

k = 4-8+20

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3 years ago
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(X2 + 3)-18

Vertex is 3,-18 so the symmetry is 3
5 0
3 years ago
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