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Stels [109]
2 years ago
6

Help asap!!! exponential function matching table..?

Mathematics
1 answer:
masha68 [24]2 years ago
6 0

Answer:

Step-by-step explanation:

Exponential equations have the form of a geometric sequence

y=ar^x\text{ y=final value, a=initial value, r=common ratio, x=term number}\\ \\ \text{The common ratio is found by dividing any term by the previous term, in this case}\\ \\ r=\frac{1}{3},\ a=27\\ \\ f(x)=27\left(\frac{1}{3}\right)^x

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<img src="https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%20%285x%20-%209%20%29%20%3D%202%20%28%5Cfrac%7B1%7D%7B3%7D%20%2B%206%20%
Tatiana [17]

Answer: 103/15

Step-by-step explanation:

We can simplify the right-hand side to be 2 \left(\frac{1}{3}+6 \right)=2 \left(\frac{19}{3} \right)=\frac{38}{3}.

This means we need to solve:

\frac{1}{2}(5x-9)=\frac{38}{3}\\5x-9=\frac{76}{3}\\5x=\frac{103}{3}\\x=\boxed{\frac{103}{15}}

7 0
2 years ago
X - 4 &lt;-4+ what’s the answer?
LekaFEV [45]

Answer:

Step-by-step explanation:

the answer is x<0

because

x-4+4<-4+4

6 0
3 years ago
Jordan is saving to buy a computer that costs $425. So far she has saved $125, and she adds $20 to her savings each week. How ma
Ber [7]

Answer:

15 more weeks

Step-by-step explanation:

425 - 125 (what shes already saved)

300 divided by 20 (amount shes saving each week)

Result is 15, so 15 more weeks.

Hope this helped :)

If you mean how many weeks total, 125 according to the 20 dollars a week would bring it 22 weeks i think.. since the answer answer is 21.2 weeks exactly when you divide 425 by 20.

4 0
2 years ago
Javier filled his gas tank with 8 gallons of unleaded gas for a cost of $15.12. How much will it cost to fill a 14-gallon tank?
tatuchka [14]
$26.46
I divided 15.12 by 8 to get the cost of just one gallon , which was $1.89. 14 x 1.89 = 26.46, which would ideally be the cost to fill a 14-gallon tank.
7 0
2 years ago
Which function will have a change in direction?
Ivahew [28]

Answer:

Quadratic

Step-by-step explanation:

A linear equation is just a line and an exponential function goes in the same direction

A quadratic us a parabola which has a turning point

3 0
3 years ago
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