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Kryger [21]
3 years ago
15

Due in 10 mins, pls help !​

Mathematics
1 answer:
xeze [42]3 years ago
4 0

Answer:

3rd one

Step-by-step explanation:

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Solve the system by substitution. <br>y = -7x + 6 <br>y = -10x​
Artist 52 [7]

Answer:

(-2, 20)

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

<u>Algebra I</u>

  • Solving systems of equations using substitution/elimination

Step-by-step explanation:

<u>Step 1: Define Systems</u>

y = -7x + 6

y = -10x

<u>Step 2: Solve for </u><em><u>x</u></em>

<em>Substitution</em>

  1. Substitute in <em>y</em>:                   -10x = -7x + 6
  2. Add 10x to both sides:      0 = 3x + 6
  3. Isolate <em>x</em> term:                    -6 = 3x
  4. Isolate <em>x</em>:                             -2 = x
  5. Rewrite:                              x = -2

<u>Step 3: Solve for </u><em><u>y</u></em>

  1. Define equation:                    y = -10x
  2. Substitute in <em>x</em>:                       y = -10(-2)
  3. Multiply:                                  y = 20
5 0
3 years ago
Read 2 more answers
Is it true that the integral LaTeX: \int x^2e^{2x}dx ∫ x 2 e 2 x d x can be evaluated using integration by parts? If so, state t
Marysya12 [62]

Answer:

Yes the integral can be evaluated by integration by parts as solved below.

Step-by-step explanation:

\int x^{2}e^{2x}dx

Taking algebraic function as first function and exponential function as second function we have

\int x^{2}e^{2x}dx=x^{2}\int e^{2x}dx-\int (x^{2})'\int e^{2x}dx\\\\=x^{2}\frac{e^{2x}}{2}-\int 2x\times \frac{e^{2x}}{2}dx\\\\\frac{x^{2}e^{2x}}{2}-\int xe^{2x}dx\\\\Now\\\\\int xe^{2x}dx=x\int e^{2x}dx-\int 1\cdot \int e^{2x}dx\\\\=\frac{xe^{2x}}{2}-\int \frac{e^{2x}}{2}dx\\\\\frac{xe^{2x}}{2}-\frac{e^{2x}}{4}\\\\\therefore \int x^{2}e^{2x}dx=\frac{x^{2}e^{2x}}{2}-\frac{xe^{2x}}{2}+\frac{e^{2x}}{4}

5 0
3 years ago
Need help! Whole answer is on the pic.
White raven [17]

Answer:

a

Step-by-step explanation:

4 0
3 years ago
What is the equation of a line that passes through the point (8, 1) and is perpendicular to the line whose equation is y=−23x+5y
wolverine [178]

Answer:

The correct answer is: y=3/2x-11 :D



4 0
3 years ago
Read 2 more answers
6^2r=800 round it to the nearest hundreth
kogti [31]

Question: solve for r: 6 ^ (2r) = 800


Answer: 1.87


Step-by-step explanation:

6 ^ (2r) = 800

log(6 ^ (2r)) = log(800)

2r log(6) = log(800)

r = log(800) / (2 log(6))

r = 1.86537641979

round

r = 1.87

log can be any logarithm function.


6^(2×1.86) = 784.734328546

6^(2×1.87) = 813.365367336


7 0
3 years ago
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