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bulgar [2K]
3 years ago
6

I need help. I will give 100pts. Reese simplified this expression. What error did he make?

Mathematics
2 answers:
Debora [2.8K]3 years ago
7 0

Answer:

B

Step-by-step explanation:

because he didnt

Katyanochek1 [597]3 years ago
3 0

Answer:

Correct answer is C, He used a law of exponents on factors with different bases.

Step-by-step explanation:

Hope this help :)

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Let P (n) be the statement that a postage of n cents can be formed using just 4-cent stamps and 7-cent stamps. The goal is to sh
natulia [17]

Complete Question

Let P (n) be the statement that a postage of n cents can be formed using just 4-cent stamps and 7-cent stamps. The parts of this exercise outline a strong induction proof that P (n) is true for n ≥ 18.

Show statements P (18), P (19), P (20), and P (21) are true, completing the basis step of the proof.

Answer:

P(18) is true

P(19) is true

P(20) is true

P(21) is true

Step-by-step explanation:

a. When n = 18

18 cents can be formed using two 7cents and one 4cents

i.e. 2 * 7 + 4 = 18

So, P(18) is true

b. When n = 19

19 cents can be formed using one 7cents and three 4cents

i.e. 1 * 7 + 3 * 4 = 19

So, P(19) is true

c. When n = 20

18 cents can be formed using five 4cents

i.e. 5 * 4 = 20

So, P(20) is true

d. When n = 21

18 cents can be formed using three 7cents

i.e. 3 * 7 = 21

So, P(21) is true

7 0
3 years ago
A baseball and a bat cost 110 dollars. If the bat costs 100 more dollars than the ball, is much does the ball cost
aliya0001 [1]

Answer:

$10

Step-by-step explanation:

So the total amount of money needed is $110

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So basically subtract $100 from $110

And you get $10 So the answer is $10

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If you convert 1/5 to a decimal (or simply solve it!) you will end up with .2 or .20
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