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3 years ago

How much do you have to add to 1,750 m to get 4 m?

Mathematics

1 answer:

Katen [24]3 years ago

3 0

-1746

well, 1750>4, so you'd have to add a negative number.

1750+(-1746)=4.

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Find the sum of the geometric series given a1=2, r=−3, and n=8.

inn [45]

Answer:

Sum of the G.P is -3280

Step-by-step explanation:

Summation:

${ \bf{sum = \frac{a( {r}^{n }-1 )}{r - 1} }} \\ \\ { \tt{sum = \frac{2( { { - 3}^{8 } -1)} }{ - 3 - 1} }} \\ { \tt{ = \frac{13120}{-4} }} \\ = -3280$

3 0

3 years ago

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A person leaves home at 8:00 a.m. and drives to a destination at a rate of 40 mph. The person returns at a rate of 25 mph and ar

olga55 [171]

It's 100 miles that's the answer

5 0

3 years ago

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A pedestal for a statue is made with 405 cubic feet of concrete.

Pavlova-9 [17]

Answer:

45 square feet

Step-by-step explanation:

we know that

The volume of the pedestal (rectangular prism) is given by the formula

$V=Bh$

where

B is the area of the rectangular base of pedestal

we have

$V=405\ ft^3\\h=9\ ft$

substitute the given values in the formula and solve for B

$405=B(9)$

$B=405/9\\B=45\ ft^2$

5 0

3 years ago

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What is the surface area of this right prism?

Amiraneli [1.4K]

Answer:

Since the 'base' and 'top' of any prism have the same shape, the surface area can be found by

surface area of prism = 2 * area of base + perimeter of base * H

So for the rectangular prism in your example..

surface area = 2LW + 2(L+W)H

= 2 * 7 * 4 + 2*(7+4)*5

= 56 + 2 * 11 * 5

= 56 +110

= 166 sq cm

Hope this helps

5 0

2 years ago

How do i answer a • a • a • r • r using exponents

Maru [420]

Answer:

a^3 +r^2

Step-by-step explanation:

a is multiplied three times so it goes to a^3

r is multiplied twice so it goes to r^2

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3 years ago

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