For polynomials you need to remember that they have 2 things: terms and positive exponents.
1) is not polynomial because if you rewrite it the second term has a negative exponent ( -4x^-2)
2)is a polynomial
3) is a polynomial
4) is not a polynomial because if you convert the sqrt in a exponent you have a rational exponent (4x)^1/2
5) for standard form arrange the terms from the high to low degrees
X^11 -9x^7. +4x^5. -6
The degree is 11 the leading coefficient is 1
6) same idea as 5. The degree is 6 and leading coefficient is -2
7) degree 3 and has 3 terms
8) degree 2 and has 3 terms
Answer:
X= -45/2
Step-by-step explanation:
<em>grou</em><em>p</em><em> </em><em>li</em><em>ke</em><em> </em><em>ter</em><em>ms</em>
<em>thu</em><em>s</em><em> </em><em>,</em><em>5</em><em>x</em><em>-</em><em>3</em><em>x</em><em>=</em><em>-</em><em>6</em><em>2</em><em>+</em><em>1</em><em>7</em>
<em>2</em><em>x</em><em>=</em><em> </em><em>-</em><em>4</em><em>5</em><em>.</em>
<em>maki</em><em>ng</em><em> </em><em>x</em><em> </em><em>the</em><em> </em><em>subject</em>
<em>x</em><em>=</em><em> </em><em>-</em><em>4</em><em>5</em><em>/</em><em>2</em><em>.</em>
9514 1404 393
Answer:
10x -30y = 3
Step-by-step explanation:
In general form, you can start by swapping the x- and y-coefficients, negating one of them. To find the new constant for the equation, substitute the values for the given point
2x -6y = 2(-3.9) -6(-1.4)
2x -6y = 0.6
Multiplying by 5 will make the numbers be integers, so will put the equation in standard form.
10x -30y = 3
The value of w is -1 and -5.
The correct option is (B)
<h3>What is equation?</h3>
A mathematical statement consisting of an equal symbol between two algebraic expressions that have the same value.
Given:
2w² + 12w + 10 = 0
First, divide through by 2
2w²/2 + 12w /2 + 10/2 =0/2
w² + 6w + 5 = 0
now, Take half of the w term and add - subtract the square of it
w² + 6w + 5 + 3² - 3² = 0
w² + 2*3w + 3² + 5 - 9 = 0
(w+3)² = 4
w+3 = ±2
w = +2 - 3, -2-2
w= -1 and -5.
Learn more about equation here:
brainly.com/question/10413253
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V^2 = u^2 + 2gs = 20^2 + 2(9.8)(2) = 400 + 39.2 = 439.2
v = sqrt(439.2) = 21.0 m/s