All categories

3 years ago

Solve each equation with the quadratic formula. 4n^2+7n-1=-4

Mathematics

1 answer:

andreyandreev [35.5K]3 years ago

7 0

The answer i got was
n=-3/4,n=-1

You might be interested in

Help in the question above please

Shkiper50 [21]

Answer:

A)11

Step-by-step explanation:

These are matrices one dimensional with one column and 3 rows each.

-The product of the matrices is obtained by multiplying the correspond values and summing up;

$pq=\left[\begin{array}{ccc}3\\2\\-1\end{array}\right] \times\left[\begin{array}{ccc}5\\-1\\2\end{array}\right] \\\\\\\\=(3\times 5)+(2\times -1)+(-1\times 2)\\\\=15+-2+-2\\\\=11$

Hence, the product of p and q is 11

4 0

3 years ago

PLEASE HELP ASAP! Several books are placed on the bottom three shelves of a bookcase. When 1 book was taken from the first shelf

sergeinik [125]

Answer:

24 books

Step-by-step explanation:

Initially the top shelf has no books placed on

Then books added to this:

1+2+3= 6

And now all 4 shelves have same amount of books. So total number is:

4*6= 24 books

There are 24 books in the bookcase

6 0

3 years ago

GH =*<br> Help I’m trying to Gh, I need help bad

evablogger [386]

Answer:

Step-by-step explanation:

I just assumed D is the midpoint; and if D is the midpoint,

GD=DH, GD+DH=GH

5.5+5.5=11

4 0

3 years ago

Complete the table and then graph the function.<br> y = x + 2 look at photo

Sonja [21]

4,5,9,10

just add two to each number

3 0

2 years ago

Solve the following function for y when x=5 round to the nearest tenth

Wittaler [7]

In the given question , we have a function given , which is

$y= 13(0.5^x)$

And we need to find the value of y when x=5.

So we substitute 5 for x and solve for y, that is

$y=13(0.5^5) = 0.40625$

And on rounding to the nearest tenths, we will get

$y=0.4$

So when x=5, y=0.4

7 0

3 years ago