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2 years ago

5

The Burj Khalifa, a building in Dubai, United Arab Emirates, is about 828 meters tall. Brody is making a scale model of this bui

lding, using the scale 500 meters : 1 meter. To the nearest tenth, how tall should Brody's model of the Burj Khalifa be?

2 answers:

Juliette [100K]2 years ago

8 0

Answer:1.7

Step-by-step explanation:because it is

Debora [2.8K]2 years ago

5 0

1.7 is the answer hope this helps.

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What is the 7th term of the geometric sequence where a1 = -625 and a2 = 125

kykrilka [37]

Since the sequence is geometric, there is some constant $r$ such that the sequence is recursively given by

$a_n=ra_{n-1}$

By this definition, you can recursively substitute into the right hand side the definition for $a_{n-1},a_{n-2},\ldots$ to find an explicit formula for the $n$ th term.

$a_n=ra_{n-1}=r^2a_{n-2}=r^3a_{n-3}=\cdots=r^{n-1}a_1=-625r^{n-1}$

You know the second term, which means you can find $r$ :

$a_2=-625r^{2-1}\implies125=-625r\implies r=-\dfrac15$

So, the 7th term of the sequence is

$a_7=-625\left(-\dfrac15\right)^{7-1}=-\dfrac1{25}$

8 0

3 years ago

Which of the following inequalities matches the graph. x>-3 x<-3 y>-3 y<-3

kvv77 [185]

Answer:

b

Step-by-step explanation:

4 0

3 years ago

Jack cuts a pie into 4 equal parts. The pieces are called _______ of the pie

djyliett [7]

Fractions of the pie?

7 0

3 years ago

Read 2 more answers

The largest jaw breaker in a store is spherical with a radius of 2 in, and sells for $4.00. A

maw [93]

Answer:

$36

Step-by-step explanation:

1. Determine the surface area of the largest jaw breaker

Surface area of a sphere = 4πr²

4 x 3.14 x 2² = 50.24in²

2. Determine the surface area of the new jaw breaker

4 x 3.14 x 6² = 452.16 in²

3. Determine the cost per area

4/ 50.24

4. Determine the price for the new jaw breaker

4/ 50.24 x 452.16 = $36

5 0

2 years ago

The equation y ̂=844.697x^2+3723.485x-13,650 models the annual profits of a new business, where x is the number of years since t

julsineya [31]

The answer is $37,923

<span>y = 844.697x^2 + 3723.485x - 13,650
x - number of years
y - the annual profit

If x = 8, the annual profit y is:
y = </span>844.697 * 8^2 + 3723.485 * 8 - 13,650
y = 844.697 * 64 + 29,787.88 - 13,650
y = 54,060.608 + 16,137.88
y = 37,922.728 ≈ 37,923

5 0

3 years ago