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charle [14.2K]
3 years ago
12

The coefficient of a² in 5 a² + 8 ab is (im asking something normal this time lol)

Mathematics
1 answer:
julsineya [31]3 years ago
4 0

Answer:

5

Step-by-step explanation:

coefficient is a number before a letter in this case itz 5

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I haven't Learned this yet
Cloud [144]

The first 5 terms in an arithmetic sequence is 4,2,0,-2,-4

Explanation:

The general form of an arithmetic sequence is

a(n)=a+(n-1)d

where a denotes the first term of the sequence, d denotes the common difference.

Here a = 4 and d = -2

To determine the consecutive terms of the sequence, let us substitute the values for n.

To find the second term, substitute n = 2 in the formula a(n)=a+(n-1)d

a(2)=4+(2-1)(-2)

Simplifying,

a(2)=4-2=2

Similarly,

For n = 3,

a(3)=4+(2)(-2)=0

For n = 4,

a(4)=4+(4-1)(-2)\\a(4)=4+(3)(-2)\\a(4)=4-6\\a(4)=-2

For n = 5,

a(5)=4+(5-1)(-2)\\a(5)=4+(4)(-2)\\a(5)=4-8\\a(5)=-4

Thus, the first 5 terms of the arithmetic sequence is 4,2,0,-2,-4

5 0
3 years ago
Put in order from large to small:<br><br> 0,2,-1.5,-2,0.5,-5
Dafna1 [17]
0.5, 0.2, -1.5 , -2 , -5
8 0
2 years ago
What is the mean of 4,6,7,7,11,12,15,18,20
ExtremeBDS [4]

Answer:

<h2>11.1111111111 or 1.1 <-(rounded)</h2>

Step-by-step explanation:

4+6+7+7+11+12+15+18+20= 100

divide by the number of values we have. we have 9 values

100/9=11.1111111111

I hope this helped

4 0
2 years ago
Read 2 more answers
The price of a share of one stock rose from $12.50 to $50. Find the percent increase.
Blababa [14]

Answer:

50-12.50= 37.50

37.50/12.50 x100% =300%

4 0
3 years ago
Read 2 more answers
Solve the system using elimination. 3x + 3y = –9 3x – 3y = 21
scoundrel [369]

Answer:

y=-5,x=2

Step-by-step explanation:

3x+3y=-9________________eqn 1

3x-3y=21________________eqn 2

using elimination method

3x+3y=-9

-

3x-3y=21

subtract equation 2 from equation 1

0+6y=-30

6y=-30

y=-30/6

y=-5

substitute the value of y in equation 1

3x+3y=-9

3x+3(-5)=-9

3x-15=-9

3x=-9+15

3x=6

x=6/3

x=2

6 0
3 years ago
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