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Fiesta28 [93]
3 years ago
15

Dave found the blueprint of his

Mathematics
1 answer:
nalin [4]3 years ago
5 0
The length of the hallway is 5 ft
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2. Evaluate the geometric series given a = -120, r = 0.5 and n = 6
Tju [1.3M]

Here we're discussing the "nth partial sum of a geom series."

                                                       1 - r^n

The formula for that is s(n) = a(1) --------------- 

                                                         1-r

We can subst. the given values and see where that takes us:

                  1 - (-2)^6        1 - 64

105 = a(1)*---------------- = ----------*a(1)  =  -21*a(1)

                    1-(-2)                3

                                              105

Solving this for a(1):  a(1) = --------- = -5    (answer)

                                              -21

8 0
4 years ago
Each Serving of pasta is 1/2 pound. Drag to correct equation to each amount to show how many 1/2 pound serving Can be made​
nataly862011 [7]

Step-by-step explanation:

4 pounds is 4÷1=8

2

5 pounds is 5÷1=10

2

4 0
3 years ago
Part A: Find a rational number that is between 5.2 and 5.5. Explain why it is rational. (2 points) Part B: Find an irrational nu
alina1380 [7]

Answer: part A: 5.4 because its a terminating deciaml Part B: 5.67854... and to the nearest hundereth is 5.68  

Step-by-step explanation:

6 0
3 years ago
For a Chinese New Year celebration, James and Zhou are making a dragon costume similar to the one shown above.
Lilit [14]

Answer:

C. 24 meters

Step-by-step explanation:

Given:

Total length of fabric required for the costume = 56.6 m

Length of fabric Zhou already has = 15 m

Length of fabric James just purchased = 17.6 m

To find how much more length of fabric is required to make the complete costume.

Solution:

<em>Let the length of fabric in meters still required be</em>  = x

<em>The total length can be given as :</em>

⇒ (15+17.6+x)\ m

⇒ (32.6+x)\ m

The total fabric required = 56.6 m

So, the equation to find x will be:

32.6+x=56.6

Subtracting both sides by 32.6

32.6+x-32.6=56.6-32.6

∴ x=24

Thus,<u> 24 meters</u> of fabric is still required to make the costume.

5 0
3 years ago
What does 18+4(m-3)+4m equal
julia-pushkina [17]

Answer:

8m + 6

Step-by-step explanation:

18 + 4(m-3) + 4m = ? (distribute 4 into parenthesis)

18 + 4m -12 + 4m ( combine like terms)

8m + 6

6 0
3 years ago
Read 2 more answers
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