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elena-s [515]
2 years ago
7

Zina spends 1.5 hours setting up her sewing machine and making one hat. The total amount of time spent making hats can be repres

ented by the sequence below. 1.5, 2.25, 3.0, 3.75, ... Which recursive formula can be used to determine the total amount of time spent making hats based on the total amount of time spent previously?
Mathematics
2 answers:
oksano4ka [1.4K]2 years ago
6 0
Based on the sequence, it shows an Arithmetic Sequence. The difference from one number to the other is 0.75. In order to get the sum of the sequence at a given N items, you need to use the formula. 

The formula is S = N/2 [2a1 + (N-1)d].
S = sum
N = number of items
a1 = first item of the sequence
d = difference from one item to the next item

Elena-2011 [213]2 years ago
4 0

Answer:

f(n+1) = f(n)+0.75

Step-by-step explanation:

it’s just a matter of trying each answer to see which one works.

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Divide 7/15 by 3/5. <br><br> A. 21/75<br> B. 7/9<br> C. 75/21<br> D. 7/25
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The answer is b:
First change the operation to multiplication, and then change the last fraction to it's reciprocal (7/15 / 5/3)
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4 0
3 years ago
Solve for q.<br> -13q= 884<br> q=
kobusy [5.1K]

Answer:

Divide each term in -13q = 884 by -13 and simplify.

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8 0
2 years ago
X-4y=-12 and 5x=20y+60<br><br> How do you solve this
Savatey [412]
Here is the answers.

6 0
3 years ago
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Which expression will give the closest approximation to the square root of 156.
topjm [15]

Answer:

C

Step-by-step explanation:

the Sq root for 156 HAS to be a # between 12 and 13.

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3 0
2 years ago
What is the gradient of the blue line?? Mathswatch
yaroslaw [1]

Answer:

gradient = -5

Step-by-step explanation:

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=> gradient = (-5 - 0)/(0 - -1) = -5/1 = -5

Hope this helps!

3 0
2 years ago
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