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elena55 [62]
3 years ago
13

What is the distance -4 and 7 on a number line?

Mathematics
1 answer:
andreev551 [17]3 years ago
3 0
11 spaces :) 7 minus 11 is -4
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Find the explicit formula for a 1 =-4,a n =a n-1 +9,n>=2
Mrrafil [7]

Given:

a_1=-4 and a_n=a_{n-1}+9 where n\geq 2.

To find:

The explicit formula for the given recursive formula.

Solution:

We know that recursive formula of an AP is:

a_n=a_{n-1}+d

Where, d is the common difference.

We have,

a_n=a_{n-1}+9

Here, d=9.

The first term of the AP is a_1=-4.

The explicit formula for an AP is:

a_n=a_1+(n-1)d

Substituting a_1=-4 and d=9, we get

a_n=-4+(n-1)9

a_n=-4+9n-9

a_n=-13+9n

Therefore, the required explicit formula for the given sequence is a_n=-13+9n.

6 0
3 years ago
Andreus made 625$ mowing yards. He worked for 5 days and earned the same amount of money each day.How much money did he earn per
Alexandra [31]
Just divide 625$ by 5. The answer is 125$ per day.
5 0
2 years ago
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HELP ASAP!! what is the measure of angle h?
SOVA2 [1]
Answer: B
Because they’re congruent angles
3 0
2 years ago
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A mail order company charges 4.5% for shipping and handling. If the total order is 54.34 how much was the order total before shi
Andrews [41]

Answer:

$52

Step-by-step explanation:

Given that :

Amount charged for shipping and handling = 4.5%

Let cost of order = x

Total amount charged = 54.34

However,

total. Amount charged = (total cost + handling and shipping)

54.34 = x + 0.045x

54.34 = 1.045x

Order total before shipping = 54.34 / 1.045

Order total before shipping = 52

6 0
3 years ago
Jack mails 10 packages that each weigh the same amount. If the combined weigh of all 10 package is 67 1/2 pounds, how much does
kykrilka [37]
The answer is 6.75, I hope this helped

7 0
3 years ago
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