Zero product property to solve equations1. a^2+8a=0
2. (3h-6)(2h-8)=0
3. 6m^2+17m+5=0
4. y^2-36=0
5. (3g+4)^2=0

Answers

Answer 1
Answer: 1.              a² + 8a = 0
             a(a) + (8) = 0
               a(a + 8) = 0
a = 0    or    a + 8 = 0
                       - 8  - 8
                         a = -8

2.               (3h - 6)(2h - 8) = 0
    (3(h) - 3(2))(2(h) - 2(4)) = 0
             (3(h - 2))(2(h - 4)) = 0
                   6(h - 2)(h - 4) = 0
                             6             6
                     (h - 2)(h - 4) = 0
        h - 2 = 0    or    h - 4 = 0
          + 2 + 2             + 4 + 4
             h = 2                 h = 4

3.                            6m² + 17m + 5 = 0
                     6m² + 15m + 2m + 5 = 0
    3m(2m) + 3m(5) + 1(2m) + 1(5) = 0
                3m(2m + 5) + 1(2m + 5) = 0
                           (3m + 1)(2m + 5) = 0
               3m + 1 = 0    or    2m + 5 = 0
                      - 1  - 1                  - 5  - 5
                     3m = -1                2m = -5
                      3       3                 3       3
                       m = ⁻¹/₃                 m = -1²/₃

4.                          y² - 36 = 0
              y² - 6y + 6y - 36 = 0
    y(y) - y(6) + 6(y) - 6(6) = 0
             y(y - 6) + 6(y - 6) = 0
                    (y + 6)(y - 6) = 0
       y + 6 = 0    or    y - 6 = 0
           - 6 - 6              + 6 + 6
             y = -6               y = 6

5. (3g + 4)² = 0
(√(3g + 4))² = √(0)
        3g + 4 = 0
              - 4  - 4
               3g = -4
                3      3
                  g = -1¹/₃

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Which of the following have an odd sum? Select all that apply. Select all that apply. odd number ++plus even number even number ++plus even number 7 + 47+47, plus, 4 11 + 311+3

Answers

lets go one at the time:
- odd number ++plus even number
odd number

- even number ++plus even numbereven number 

7 + 47 + 47 plus, 4  = 101 + 4 = 105that is odd

11 + 311 + 3 = 325
odd

What is the equation of the line 4x - 3y = -2 in slope-intercept form?

Answers

Answer:

Y=-4x+2/3

Step-by-step explanation:

-3y=-4x-2

Y=-4x+2/3

Answer:

The answer is y = 4/3x + 2/3

A parabola and its focus are shown on the graph. the vertex of the parabola is at (0,0). what is the equation of the directrix of the parabola?A) Y=3
B) Y= -3
C) X= 3
D) X= -3

Answers

Answer:

\boxed{\boxed{x=-3}}

Step-by-step explanation:

Relation between focus, vertex and directrix-

The vertex of the parabola is at equal distance between focus and the directrix. As any point on the parabola is equidistant from both focus and directrix.

And the directrix is always perpendicular to axis of symmetry and does not touch the parabola.

From the graph, the focus is at (3, 0) and axis of symmetry is x axis or y=0 line.

So the directrix will be horizontal and on the left of the parabola.

Hence, the equation of directrix of the given parabola will be x= -3

The correct answer is D X=-3, since the directrix is always the opposite distance from the vertex as the focus is.

Which radical expression is equivalent to 5^2/3?sqrt 125

^3 sqrt 5

^3 sqrt 25

sqrt 5

Answers

Answer: \sqrt[3]{25} is equivalent to the given expression.

Step-by-step explanation:

Given expression, 5^(2/3)

we can write, 5^(2/3) = (5^2)^(1/3) (because, a^(mn)= (a^m)^n)

5^(2/3) = (25)^(1/3)

5^(2/3) =  \sqrt[3]{25}

(because,we can write,  x^(1/n)=\sqrt[n]{x})



The answer is the last expression. 5^2/3 means you square the five then find the cubic root. 5 squared is equal to 25. Then you find the cubic root. 

Which of the following is equal to angle C?A.cos (a/c)
B.sin (a/c)
C. tan^-1 (c/a)
D. cos^-1 (c/a)

Answers

tangent = opposite/adjective
tan(C) = c/a
We can use an inverse ratio to find the measure of <C.
C = tan^-1(c/a)
tan(C)=O/A=c/a

Therefore:

C=tan⁻¹(c/a)

So your answer is C.

Write cos 23 degrees in terms of sine

Answers

Answer:

0.3907.

Step-by-step explanation:

Using trigonometric identities, we can write cos 23° in terms of sin 23° as, cos(23°) = √(1 - sin²(23°)). Here, the value of sin 23° is equal to 0.3907.

Answer:

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