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3 years ago

Timed!!

Mathematics

1 answer:

dybincka [34]3 years ago

8 0

Answer:

Step-by-step explanation:

We have a rectangle with dimensions 12 ft × 6 ft in the base of the pyramid and two pairs of triangles with a base of 12 ft and 6 ft and heights of 8 ft and 9.5 ft.

The area of a base:

$A_B=(12)(6)=72\ ft^2$

The areas of the triangles:

$A_1=\dfrac{(12)(8)}{2}=(6)(8)=48\ ft^2\\\\A_2=\dfrac{(6)(9.5)}{2}=(3)(9.5)=28.5\ ft^2$

The Surface Area:

$S.A.=A_B+2A_1+2A_2$

Substitute:

$S.A.=72+2(48)+2(28.5)=72+96+57=225\ ft^2$

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A bank offers all savings accounts 5% interest compounded annually. If one account has a principal of $100 and another

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Answer:

From the calculation for both the accounts, it is clear that both the account double in the same time period of 14 years 26 days .

Step-by-step explanation:

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<u>Again </u>

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$Log_{10}2$ = $Log_{10}(1.05)^{t}$

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