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Darina [25.2K]
3 years ago
11

Pls help me answer this it's due today​

Mathematics
2 answers:
kvv77 [185]3 years ago
6 0

Answer:

I think its 21 But if its times then its 240

Step-by-step explanation:

Hope this helped

Sonbull [250]3 years ago
4 0

Answer:

120

Step-by-step explanation:

formula for volume is area×height

so

v=1 /2b×h×l

v=1/2×5×4×12

v=2.5×4×12

v=10×12

v=  {120cm}^{3}

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A person invest $1200 in an account that earns 2% interest compound quarterly. Find when the value of the investment reaches $15
Basile [38]

Answer:

After 11 years the value of the investment reaches $1500.00

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Step-by-step explanation:

The formula used for finding time (when the value reaches certain amount) is:

A= P(1+\frac{r}{n})^{nt}

where A= Future VAlue

P= Principal Value

r= rate of interest (in decimal)

n= no of times investment is compounded

t= time

Putting the values given and finding Time t,

A= $1500

P= $1200

r= 2% or 0.02

n= 4 (compound quarterly)

A= P(1+\frac{r}{n})^{nt}

1500= 1200(1+\frac{0.02}{4})^{4t}

Dividing both sides by 1200 and solving 0.02/4 = 0.005

1.25= (1+0.005)^{4t}

1.25= (1.005)^{4t}

Since t is in power we take the logarithm ln on both sides.

The rule of logarithm says that the exponent can be multiplied with the base when taking log

\ln1.25=ln( 1.005)^{4t}\\\ln1.25=4t * ln( 1.005)\\0.22 = 4t * 0.005\\Solving\,\,\\\frac{0.22}{4*0.005} = t\\=> t= 11\, years

8 0
3 years ago
What is the slope for (-6,4) and (2,12)
Romashka-Z-Leto [24]

Answer:

1

Step-by-step explanation:

(-6,4) and (2,12)

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= 12 - 4 / 2 - (-6)

= 8/8

= 1

5 0
3 years ago
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masya89 [10]

Answer: 2/15

Step-by-step explanation:

1/3 x 2/5 = 2/15

3 0
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3 years ago
James put $1000 in a 2-year CD paying 7% interest, compounded monthly.
ruslelena [56]
To find the future value of this investment the formula is
A=p (1+r/k)^kt
A future value?
P present value 1000
R interest rate 0.07
K compounded monthly 12
T time 2 years
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A=1,149.81
4 0
3 years ago
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