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-Dominant- [34]
2 years ago
10

Please solve the system of equations below thank you explain if u can

Mathematics
1 answer:
ivanzaharov [21]2 years ago
7 0
First let’s try to cancel out the x
5x + -5x = 0
Add the y and the numbers together
-3y + -2y = -5y
26 + -16 = 10
-5y = 10
y = -2
Use y=-2 in one of the equations
-3(-2) + 5x = 26
6 + 5x = 26
5x = 20
X = 4

So
Y= -2
X= 4

https://mathsmadeeasy.co.uk/gcse-maths-revision/simultaneous-equations-gcse-maths-revision/

Check this link out for more help!
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Write the first five terms of a sequence. Don't make your sequence too simple. Write both an explicit formula and a recursive fo
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Let the first five terms of a sequence be, 4,8,12,20,24

Ok, let me explain the meaning of term explicit and Recursive formula.

Explicit formula ,is the general formula to find any  term of the sequence.

And, Recursive formula, is the method by which, we can find the nth term of the sequence if (n-1)th term of the sequence is known.

So,the explicit formula for the sequence is,

y = 4 n, where , n is any natural number.

And the recursive formula is .

y = 4 (n-1), with the help of (n-1)th term we can find nth term.

First term =4=4 × 1

Second term =8 =4 × 2

Third term =12=4×3

Fourth term =16 =4 × 4

.....................

...........................

.................................

(n-1) th term =4 × (n-1)

nth term =4 × n

Applying the simple procedure by looking at the first , second and the way the next term goes , the general and recursive formula is obtained.

As, you said you don't want simpler sequence

Consider the first five terms of the sequence, 0, 3,8,15, 24.

Explicit formula =n² + 2 n

Recursive formula=(n-1)²+2(n-1)

If,you will look at the sequence, it is neither Arithmetic nor geometric .

First term =0=0²+0×0

Second term =3=1+2=1²+2 × 1

Third term =8=4+4=2²+2×2

Fourth term =15=9+6=3²+2×3

Fifth term =24=16 +8=4²+2×4

So, Explicit formula= n²+ 2 n, where n is a whole number.

HOPE THIS HELPS!

7 0
3 years ago
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Hi, please help if your are able please
Simora [160]
The answer is -28


hope this helps :)
(can you please mark me as brainliest?)
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3 years ago
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Who ever gets this right will get a brainlest
zepelin [54]

Answer:

<1 and <2

<3 and <2

<1 and <4

Step-by-step explanation:

Adjacent angles are angles that are next to each other. In essence, they would share one aside in common. In this problem, the answers are the following,

<1 and <2

<3 and <2

<1 and <4

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3 years ago
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The employees of a firm that manufactures insulation are being tested for indications of asbestos in their lungs. The firm is re
crimeas [40]

Answer:

attached below

Step-by-step explanation:

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3 years ago
The temperature reading from a thermocouple placed in a constant-temperature medium is normally distributed with mean μ, the act
ira [324]

Answer:

The standard deviation would have to be 0.05.

Step-by-step explanation:

We can solve this problem using the 68-95-99.7 rule for normal distributions:

The rule states that:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviations of the mean.

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This means that 2 standard deviations would need to be within 0.1 of the mean. So

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The standard deviation would have to be 0.05.

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