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Alenkasestr [34]
3 years ago
5

PLEASE HELP....... Solve the system of equations using the Addition method. 2a + 3b = -1 3a + 5b = -2

Mathematics
1 answer:
guajiro [1.7K]3 years ago
4 0
2a+3b  = -1      | *3
3a +5b = -2       |* -2

6a+ 9b = -3
-6a -10b = 4
------------------
/      -b =1
         b= -1

2a + 3b= -1
2a + 3* -1 = -1
2a -3= -1
2a = 3-1
2a=2
a=2:2
a=1
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Answer:

\displaystyle \frac{7}{24}

General Formulas and Concepts:

<u>Algebra I</u>

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<u>Calculus</u>

[Area] Limits of Riemann's Sums - Integrals

Integration Rule [Reverse Power Rule]:                                                                    \displaystyle \int {x^n} \, dx = \frac{x^{n + 1}}{n + 1} + C

Integration Rule [Fundamental Theorem of Calculus 1]:                                          \displaystyle \int\limits^b_a {f(x)} \, dx = F(b) - F(a)

Step-by-step explanation:

<u>Step 1: Define</u>

<u />\displaystyle f(x) = \frac{1}{x^4} \\ \ [1, 2]<u />

<u />

<u>Step 2: Find Area</u>

  1. [Integral] Set up area:                                                                                    \displaystyle \int\limits^2_1 {\frac{1}{x^4}} \, dx
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Topic: Calculus

Unit: Basic Integration/Riemann Sums

Book: College Calculus 10e

6 0
2 years ago
Help me please,Thanks
Ugo [173]

The answer to this question would be the last choice (this data has no outliers)

Explanation: The reason for this is that an outlier is basically any number or value that kind of stands off or is very separated from a set of data.

For example, if I had the numbers 1,2,3,2,9,5,7,5,8,4 and 47, 47 would definitely be an outlier as it's significantly greater than the rest of the data.

The data shown in your question doesn't vary a lot though, (it's contained within a range of 65 and 80- no number seems to be radically different).  

5 0
2 years ago
The equation 6x - 5y = 14 is written in standard form. Which point lies on
dimaraw [331]
Answer= H (-1, -4)

Explanation= 6(-1) - 5(-4) = 14
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14=14 * it works !
GOODLUCK!
4 0
2 years ago
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Komok [63]
The actual probability of having odd is 3/6=1/2
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so answer is B !
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5 0
3 years ago
Read 2 more answers
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hichkok12 [17]

it would be 9.93300

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3 0
3 years ago
Read 2 more answers
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