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3 years ago

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9.

1 answer:

myrzilka [38]3 years ago

5 0

Using <span>Compound interest formula:
</span>
<span><span>The exponential function for calculating the amount of money after <span>t <span>years, <span>A<span>(<span>t<span>), where<span> P <span>is the initial amount or principal, the annual interest rate is <span>r <span>and the number of times<span> interest is compounded per year is <span>n, is given by</span>
</span></span></span></span></span></span></span></span></span></span></span></span> $A(t) = p(1+ \frac{r}{n} )^{nt}$

</span><span>from the given information:
p = 1,380 , r = 0.05 , t =3 and </span><span>compounded daily ⇒⇒⇒ n =365

Amount after 3 years = </span>
<span> $A(t) = 1380(1+ \frac{0.05}{365} )^{365*3}$ = 1,603.315

</span>

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Help me solve this please

Semenov [28]

$\huge\underline{ \underline{ \bf{Answer࿐} }}$

parallel sides measure :

10 ft -(a)
12 ft. -(b)

Area :

44 ft²

height (h) = x

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$\boxed{Area = \frac{1}{2} \times (a + b) \times h}$

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5 0

3 years ago

The total cost of painting of four walls of a square hall at Rs. 40 per sq. m. is Rs. 12000. If the hall contains 600 m³ of air,

astra-53 [7]

Answer:

The height of the hall is 9.375 meters

Step-by-step explanation:

The rate at which the walls of the square hall are painted, R = Rs. 40 per sq. m.

The total cost of painting the square hall, C = Rs. 12,000

The volume of air contained in the hall, V = 600 m³

The surface area of the four walls of the hall, A = C/A

∴ A = Rs. 12,000/(Rs. 40/m²) = 300 m²

Let 's' represent the length of sides of the square hall, and let 'h' represent the height of the square wall, we have;

The volume of the hall, V = s² × h

The surface area of the wall, A = 4 × s × h

Therefore, we get;

A = 300 = 4 × s × h

V = 600 = s² × h

V/A = 600/300 = 2 = s² × h/(4 × s × h) = s/4

s/4 = 2

s = 4 × 2 = 8

The side length of the square hall, s = 8 m.

From the area, A = 4 × s × h, we get;

A = 300 = 4 × 8 × h

h = 300/(4 × 8) = 9.375

The height of the hall, h = 9.375 m.

8 0

3 years ago

Describe the pattern in the sequence. Find the next two terms of the difference -2, -5,-8, -11

PSYCHO15rus [73]

Hello from MrBillDoesMath!

Answer:

"-3" is added to a sequence member to get the next number. This next two terms are -14 and -17

Discussion:

Note that -2 -3 = -5 and

-5 -3 = -8 and

-8 - 3 = -11

"-3" is added to a sequence member to get the next number. This implies that the next two terms are -11 -3 = -14 and -14 -3 = -17

Regards,

MrB

5 0

3 years ago