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AnnZ [28]
3 years ago
13

Help me with this one please :(

Mathematics
1 answer:
blsea [12.9K]3 years ago
8 0
C.) 4(2x-6) and 8x-24
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The number of compact discs N purchased each year, in millions, can be
Aleonysh [2.5K]

Answer:

126.5 years

Step-by-step explanation:

N(t) = 384(1.13)^t

2,000,000,000 = 384(1.13)^t

(1.13)^t = 2,000,000,000/384

log [(1.13)^t) = log (2,000,000,000/384)

t × log 1.13 = log (2,000,000,000/384)

t = [log (2,000,000,000/384)]/(log 1.13)

t = 126.5

8 0
1 year ago
Bashir works in a weather station and has launched a weather ballon. The height of the baloon is 4 kilometers and it is 1 kilome
andrew-mc [135]

<u><em>Answer:</em></u>

(c) 4.1 km

<u><em>Explanation:</em></u>

We are given that the height of the balloon is 4 km and that it is 1 km away from the station.

Setting up the diagram that describes the given scenario, we would end up with a right-angled triangle as the one shown in the attached image

<u>where:</u>

height of the balloon = 4 km represents one side of the triangle

distance between the base of the balloon and the station = 1 km represents the other side

distance between the balloon and the station is the length we want to find and it represents the hypotenuse of the triangle.

<u>To get the length of the hypotenuse, we will use the Pythagorean theorem</u>

hypotenuse = +\sqrt{(side1)^2 + (side2)^2}

<u>Substitute with the givens:</u>

hypotenuse = +\sqrt{(4)^2 + (1)^2} = √17 ≈ 4.1 km

Hope this helps :)


3 0
3 years ago
An expression is shown below (x^4/3)(x^2/3)
Nitella [24]
( x^\frac{4}{3}) (x^ \frac{2}{3})  = x^{ \frac{4}{3} + \frac{2}{3} }= x ^\frac{6}{3} = x^2


7 0
3 years ago
Read 2 more answers
Angelina and Neil are going to the movies today each movies bought a medium popcorn and Neil. Org small soft drink Angela had a
Drupady [299]

there are too many spelling incorrections for me to understand the question, sorry.

6 0
3 years ago
Read 2 more answers
Which is the equation of a line that has a slope of -2/3 and passes through point (-3,-1)
DiKsa [7]

Answer:

y = -2/3x - 3

Step-by-step explanation:

y = mx + b

m = slope

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

<em>Plus in the coordinates</em>

-1 = -2/3(-3) + b

<em>negative times negative = positive</em>

-2/3 * -3 = 2

-1 = 2 +b

<em>Use inverse operations</em>

-2 --2

-3 = b

y = -2/3x - 3

5 0
3 years ago
Read 2 more answers
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