2 years ago

Solve the equation by using the quadratic formula.

Mathematics

2 answers:

Luda [366]2 years ago

7 0

Answer:

The answer is B

Step-by-step explanation:

Sergeeva-Olga [200]2 years ago

4 0

Answer:

Step-by-step explanation:

2x² + 5x -3 = 0

2x² - x + 6x - 3 = 0

x(2x-1) + 3(2x-1) = 0

(x+3) (2x-1) = 0

You might be interested in

if one out of 60 applications to a specific job was incomplete, how many total applications were received if there were 5 incomp

Lelu [443]

Answer:

300

Step-by-step explanation:

1:60

5:300

8 0

2 years ago

Read 2 more answers

The balance in two separate bank accounts grows each month at different rates. The growth rates for both accounts are represente

Leno4ka [110]

That would be 42(x) greater than 809(x)

8 0

2 years ago

Find the product. (3.2)(6.4)

vfiekz [6]

Answer:

20.48

The parentheses just means multiplication.

8 0

2 years ago

A ball is thrown from a height of 32 meters with an initial downward velocity of 2/ms. The ball's height h (in meters) after t s

Bumek [7]

0=65-10t-5t^2

now what you want to do is multiply a and c

-5(t^2+2t-13)

Now just find the zeros

6 0

2 years ago

the vertex of this parabola is at (3,5). When the y-value is 6, the x-value is -1. What is the coefficient of the squared term i

otez555 [7]

Now, assuming is a vertical parabola, so the squared variable is the "x", let's do some checking.

$\bf \qquad \textit{parabola vertex form}\\\\
\begin{array}{llll}
\boxed{y=a(x-{{ h}})^2+{{ k}}}\\\\
x=a(y-{{ k}})^2+{{ h}}
\end{array} \qquad\qquad vertex\ ({{ h}},{{ k}})\\\\
-------------------------------\\\\
vertex
\begin{cases}
h=3\\
k=5
\end{cases}\implies y=a(x-3)^2+5
\\\\\\
\textit{we also know that }
\begin{cases}
y=6\\
x=-1
\end{cases}\implies 6=a(-1-3)^2+5
\\\\\\
1=a(-4)^2\implies 1=16a\implies \cfrac{1}{16}=a$

6 0

3 years ago