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3 years ago

I need help with this math problem.

Mathematics

2 answers:

katrin [286]3 years ago

5 0

Answer:

The answer to your question is s = 399.5 m

Step-by-step explanation:

Formula

$s = \sqrt{\frac{3V}{h}}$

Data

V = 7 500 000 m³

h = 141 m

Substitution

$s = \sqrt{\frac{3(7500000)}{141}}$

$s = \sqrt{\frac{22500000}{141}}$

$s = \sqrt{159574.47}$

s = 399.46 meters ≈ 399.5 meters

lisabon 2012 [21]3 years ago

5 0

Answer:s = 400 meters

Step-by-step explanation:

The volume V of a pyramid with a square base with side length s and height h is

V=1/3s^2h

Solved for s, this formula gives

s = √3V/h

Given that the pyramid has a volume, V of approximately 7500000 cubic meters and the height is approximately 141 meters, the length if the side of the pyramid, s would be

s = √3 × 7500000/141

s = √3 × 53191.4894

s = √159574.4682

s = 399.468

s = 400 meters approximated to the nearest meter

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What is the value of X?

VashaNatasha [74]

Answer:

considering the above 45*

to make the line that would represent 180*

180 - 45 = 135

(2 / 135 - 5)

62.5

62.5 is your answer

Step-by-step explanation:

3 0

3 years ago

A townhouse in San Francisco was purchased for $80,000 in 1975. The appreciation of the building is modeled by the equation: A=8

jonny [76]

Answer:

In 1981 was the building worth double it’s value.

Step-by-step explanation:

Given : A townhouse in San Francisco was purchased for $80,000 in 1975. The appreciation of the building is modeled by the equation : $A=80000(1.12)^t$ , where t represents time in years.

To find : In what year was the building worth double it’s value in 1975?

Solution :

The amount is $80,000.

The building worth double it’s value in 1975.

i.e. amount became A=2(80000).

Substitute in the model,

$2(80000)=80000(1.12)^t$

$(1.12)^t=\frac{2(80000)}{80000}$

$(1.12)^t=2$

Taking log both side,

$t\log (1.12)=\log 2$

$t=\frac{\log 2}{\log (1.12)}$

$t=6.11$

i.e. Approx in 6 years.

So, 1975+6=1981

Therefore, in 1981 was the building worth double it’s value.

4 0

4 years ago

If x2 + y2 = 38 and x - y = 2, then what is x? If there are two possible answers, then enter the larger of the two.

Ket [755]

If x-y=2 then x=2+y

And if you insert that in the first equation

$(2 + y) {}^{2} + y {}^{2} = 38$
$4 + 4y + y {}^{2} + {y}^{2} = 38$
$2y {}^{2} + 4y - 34 = 0$
$y = - 1 + \sqrt{17}$
Or
$y = - 1 - \sqrt{17}$

The first one is bigger so the answer is

$y = - 1 - \sqrt{17}$

7 0

3 years ago

Read 2 more answers

26 - 20f = 6 please help me

Ymorist [56]

Answer : f=1

explanation : subtract 26 from both sides and then divide by -20, making f = q

8 0

3 years ago

Which way is better?

Liono4ka [1.6K]

Answer:

the best way is to follow the law, sales tax is not subject to discount by the seller.

Step-by-step explanation:

both ways result in the same outcome:

improper way, discount after tax

$50+$5(tax)=$55, after discount $55-$11(20%)=$44

proper way, discount before tax

$50-$10(20%)=$40+$4(tax)=$44

3 0

3 years ago