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Kay [80]
3 years ago
15

HELP PLS A) 16 B) -4 C) -16

Mathematics
1 answer:
Juli2301 [7.4K]3 years ago
7 0

Answer:

B) -4 is the crct answer may be

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What are the solutions to the equation?
hoa [83]

Answer:

A

Step-by-step explanation:

Basic trinomal.........

5 0
2 years ago
Write a quadratic equation given the roots -1/3 and 5, show your work
Travka [436]

\boxed{(x - a)(x - b) = 0}

The equation above is the intercept form. Both a-term and b-term are the roots of equation.

x =  -  \frac{1}{3}  \\ x = 5

These are the roots of equation. Therefore we substitute a = - 1/3 and b = 5 in the equation.

(x +  \frac{1}{3} )(x -  5) = 0

Here we can convert the expression x+1/3 to this.

x +  \frac{1}{3}  = 0 \\  3x + 1 = 0

Rewrite the equation.

(3x + 1)(x - 5) = 0

Simplify by multiplying both expressions.

3 {x}^{2}  - 15x + x - 5 = 0 \\ 3 {x}^{2}  - 14x  - 5 = 0

<u>Answer</u><u> </u><u>Check</u>

Substitute the given roots in the equation.

3 {(5)}^{2}  - 14(5)  - 5 = 0 \\ 75 - 70 - 5 = 0 \\ 75 - 75 = 0 \\ 0 = 0

3( -  \frac{1}{3} )^{2}  - 14( -  \frac{1}{3}) - 5 = 0 \\ 3( \frac{1}{9} ) +  \frac{14}{3}  - 5 = 0 \\  \frac{1}{3}  +  \frac{14}{3}  -  \frac{15}{3}  = 0 \\  \frac{15}{3}  -  \frac{15}{3}  = 0 \\ 0 = 0

The equation is true for both roots.

<u>Answer</u>

\large \boxed {3 {x}^{2}  - 14x - 5 = 0}

8 0
2 years ago
What value of k will make this expression equal to 0? <br><br> b • 3.8 • 2.72 • (k – 4)
Verizon [17]

4-4=0

anything x 0=0

your answer is 4

Hope this helps!

3 0
3 years ago
Read 2 more answers
Solve 3(x-5)-4(x+3)=​
Wittaler [7]

3(x-5)-4(x+3)

Multiply the first bracket by 3

(3)(x)=3x

(3)(-5)=-15

(-4)(x)=-4x

(-4)(3)=-12

3x-15-4x-12

3x-4x-15-12 ( combine like terms)

Answer: -x-27

5 0
3 years ago
Determine the slope of the line represented by y = 2x - 9
lbvjy [14]

Answer:

2

Step-by-step explanation:

2x is the slope which is just 2

7 0
3 years ago
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