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DochEvi [55]
3 years ago
13

Brianna wants to buy a digital camera for a photography class. One store offers the camera for $47 down and a payment plan of $2

0 per month. The payment plan for a second store is described by y = 13x + 78, where y is the total cost in dollars and x is the number of months. Which camera is cheaper when the camera is paid off in 12 months? Complete the explanation.
Mathematics
2 answers:
denis-greek [22]3 years ago
5 0
1.67 because if you calculate allof it thats your answer
spin [16.1K]3 years ago
5 0
1.6 my child had the same exact question on her homework and I contacted the teacher and I got it
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3x^2 − 16x + 2 = 0
Andreyy89
A = 3 b = -16 and c = 2
the radicand would be
sq root (b^2 -4*a*c) =
sq root (256 -4*3*2) =
sq root (232)
So the roots will be real and not complex.

6 0
3 years ago
How do you solve x+2a=16+ax-6a ?
nasty-shy [4]
<span>X+2a = 16+aX-6a
8X - 16 = aX-2a
8(X-2) = a(X-2)
</span><span>(X-2)/<span>(X-2)</span> = a/8
1 = a/8
a= 8
</span>
3 0
3 years ago
PLEASE help me with THIS QUESTIOn plz ASAP thank u.
Lyrx [107]
It would be: if you want me to explain let me know

6 0
3 years ago
Read 2 more answers
You invest $2,500 in an account that grows 5% each year. what will be your investment amount after 6 years?
lesantik [10]

Answer:  b. $3,374.65

Step-by-step explanation:

The exponential equation of growth (continuously) is given by :-

y=Ae^{rx}, where A is the initial amount, r is the rate of growth ( in decimal) and x is the time period.

Given : You invest $2,500 in an account that grows 5% each year.

i.e.  A= $2,500  and r= 5%=0.05

Then, the equation model this situation will be :-

y=2500e^{0.05x}=2500(1.05)^x

Now, At x= 6

y=2500e^{0.05\times6}\\\\\Rightarrow\ y=2500e^{0.3}=3374.64701894\approx3374.65

Hence, the investment amount after 6 years will be $3,374.65.

4 0
3 years ago
dana is flying a kite whose string is 65 meters long and makes a 70 degree angle with the ground. How far is the kite above the
SSSSS [86.1K]
Here you would want to use the sine function, since it’s making a triangle with the ground, and length of the string, the height to the kite. This can be found by 65sin(70°) which is ≈ 61.08 meters
3 0
3 years ago
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