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Ulleksa [173]
3 years ago
15

Explain why 2n+1 must be an odd number

Mathematics
1 answer:
Lorico [155]3 years ago
4 0
If is an integer (a whole number), then the expression represents an even number, because even numbers are the multiples of 2. The expressions 2 n − 1 and 2 n + 1 can represent odd numbers, as an odd number is one less, or one more than an even number.
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Please answer this question
stira [4]

Graph 1: Domain = 2 <= x < 12  

Graph 1: Range = {2,4}

Graph 2: Domain = 3 <= x <= 10  

Graph 2: Range = -6 <= y <= 4

Graph 3: Domain = 4 < x < 11  

Graph 4: Range = -6 <= y < 2

3 0
3 years ago
Kyra multiplied 0.27 by a power of ten and got 2.7. What power of ten did she multiply by?
sveticcg [70]

Answer:

the answer would be A.

Step-by-step explanation:

Look for how many decimal places the decimal moved and thats how many 0's would be in your number

7 0
3 years ago
Which of the following is equivalent to 2-47
lara31 [8.8K]

Answer:

45

Step-by-step explanation:

2 minus 47 equals 45 if that's what your talking about

7 0
3 years ago
Solve: 2 + = 2. Give solutions in interval [0, 2)
Dovator [93]
\because\cos 2x+\sin x=\sin 2x\because\sin 2x=2\sin xcosx\because\cos 2x=\cos ^2x-\sin ^2x

→ Substitute cos 2x and sin 2x by their expressions

\therefore\cos ^2x-\sin ^2+\sin x=2\sin x\cos x

→ Subtract both sides by sin x

\cos ^2x-\sin ^2x=2\sin xcosx-\sin x

→ Take sin x as a common factor in the right side

\therefore\cos ^2x-\sin ^2x=\sin x(2\cos x-1)

From the graph, the equation has 4 solutions, the intersection points between the 2 graphs

7 0
1 year ago
Helppppppp will give BRAINLIEST!!!
STALIN [3.7K]

Answer:

c

Step-by-step explanation:

range is the largest -the smallest

median is the line between 9 and 10

first quartile is on 6

4 0
3 years ago
Read 2 more answers
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