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aleksley [76]
3 years ago
10

Question #5: Solve the system of equations below using substitution.

Mathematics
1 answer:
RSB [31]3 years ago
6 0

I need someone to find a mistake in my soliution or maybe to solf it much more easily... I have got a sum  

1+

1

4⋅

2

4

+

1

7⋅

2

7

+

1

10⋅

2

10

+⋯

1+14⋅24+17⋅27+110⋅210+⋯

and need to evaluate it. So here's my soliution:  

S(x)=1+

x

4

4⋅

2

4

+

x

7

7⋅

2

7

+

x

10

10⋅

2

10

+⋯=1+

∑

n=1

∞

x

3n+1

(3n+1)⋅

2

3n+1

=1+

S

1

(x)

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15 3/14+ 24 1/14+ 12 2/7+ 12 2/7+ 10 1/7 +10 1/7+ 35 3/7=​
lesantik [10]

Answer:

it is :119.5714

Step-by-step explanation:

15 3/14+24 1/14+12 2/7+12 2/7+10 1/7+10 1/7+35 3/7=

step by step now:

15 3/14+24 1/14+12 4/14+12 4/14+10 2/14+10 2/14+35 6/14=118 22/14=118+1.5714=119.5714

5 0
3 years ago
Need help a s a p HURRYYYYY
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Step-by-step explanation:

v= 4/3πr³

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•

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3 0
3 years ago
I need help on number 5 this is due at 11.59 thank you :)
zavuch27 [327]
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3 0
3 years ago
Which shows the correct substitution of the values a, b, and c from the equation 1 = -2x + 3x2 + 1 into the quadratic
lidiya [134]

Answer: A

Step-by-step explanation:

The first thing we need to do is to make sure our equation is in standard form. The given equation is not in standard form.

3x²-2x=0

Now that the equation is in standard form, we can find our A, B, C to see which quadratic equation is correct.

A=3

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C=0

We can automatically eliminate D because the first value is -3 when it is supposed to be -(-2). Also, the denominator is supposed to be 2a. We know that A=3. The denominator should be 2(3), not 2(-2).

Next, we can eliminate B and C. For the 4ac, we know it has to be 4(3)(0) because A=3 and C=0. B and C have given 4(3)(2) and 4(3)(1), respectively. This does not match A=3 and C=0.

Therefore, A is the correct answer.

4 0
3 years ago
14 boys and 21 girls will be equally divided into groups. Find the greatest number of groups that can be created if no one is le
Stells [14]
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8 0
3 years ago
Read 2 more answers
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