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3 years ago

Please help• last post thank you!

Mathematics

1 answer:

Inessa05 [86]3 years ago

7 0

Answer:

255

Step-by-step explanation: 85 X 3= 255

sorry if im wrong

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I need help with this

Scrat [10]

Answer:

Your answer would be option A, 3.

Step-by-step explanation:

You use the slope equation $\frac{y2-y1}{x2-x1}$

So it would look like $\frac{10-4}{7-5}$ , which is $\frac{6}{2}$ , which reduces to 3.

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3 years ago

How to write 4x – 20 = 5y in standard form?

lana66690 [7]

<span>4x - 5y = 20 I think, good luck!</span>

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4 years ago

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A young couple purchases their first new home in 2002 for $120,000. They sell it to move into bigger home in 2007 for $150,000.

Fed [463]

Answer:

The exponential model for the value of the home is $V(t)=120000e^{0.045t}$ .

Step-by-step explanation:

According to the give information 2002 is the initial year and the value of the hom in 2002 is $120,000.

The model will have the form

$V(t)=V_0e^{kt}$

Where V₀ is initial value of home, k is a constant and t is number f years after 2002.

$V(t)=120000e^{kt}$

The value of home in 2007 is $150,000. Difference between 2007 and 2002 is 5 years. Therefore the value of function is 150000 at t=5.

$150000=120000e^{k(5)}$

$\frac{150000}{120000}=e^{5k}$

$\frac{5}{4}=e^{5k}$

Take ln both sides.

$ln(\frac{5}{4})=lne^{5k}$

$ln(\frac{5}{4})=5k$ ( $lne^a=a$ )

$\frac{ln(\frac{5}{4})}{5}=k$

$k=0.04462871\approx 0.045$

Therefore exponential model for the value of the home is $V(t)=120000e^{0.045t}$ .

Where t is number of years after 2002.

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4 years ago

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The decimal expansion of the number 2 1 / 2

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Answer:

${ \tt{ = 2 \frac{1}{2} }} \\ \\ = \frac{5}{2} \\ \\ { \tt{ = 2.5}}$

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3 years ago

Michele is making a kite based on the pattern below. About how much binding does Michele need to cover the edges of the kite?

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Answer:

about 52.1 in.

Step-by-step explanation:

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3 years ago