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Solnce55 [7]
2 years ago
6

Solve and make a table ( you may decide what the topic is and the value is.Algebra I)

Mathematics
2 answers:
ratelena [41]2 years ago
6 0

Answer:

Hello...

I'm new user here.

Can you teach me how to use brainly? Please, it would bey favour.

I have just downloaded the app and don't know how to use.

lora16 [44]2 years ago
3 0
I really don’t know I just need points
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HELP !! ASAP !!
Sedaia [141]

Answer:

The roots are;

x = (2 + i)/5 or (2-i)/5

where the term i is the complex number representing the square root of -1

Step-by-step explanation:

Here, we want to use the completing the square method to solve the quadratic equation;

f(x) = -5x^2 + 4x -1

Set the function to zero

0 = -5x^2 + 4x - 1

So;

-5x^2 + 4x = 1

divide through by the coefficient of x which is -5

x^2 - 4/5x = -1/5

We now take half of the coefficient of x and square it

= -2/5^2 = 4/25

add it to both sides

x^2 - 4x/5 + 4/25= -1/5 + 4/25

(x- 2/5)^2 = -1/5 + 4/25

(x - 2/5)^2 = -1/25

Take the square root of both sides

x - 2/5 = √( -1/25

x - 2/5 = +i/5 or -i/5

x = 2/5 + i/5 or 2/5 - i/5

7 0
3 years ago
If You can answer this ASAP that would be great I really need help thanks! Gina Biked 3 miles in 25 minutes. At this rate, how m
scoray [572]
She would go 135 miles I could be wrong
7 0
3 years ago
Read 2 more answers
1. Gwen deposits $7,000 in a savings account with an annual interest rate of 2.5%. What function
xeze [42]

Answer:

Results are below.

Step-by-step explanation:

Giving the following information:

Initial investment (PV)= $7,000

Interest rate (i)= 2.5%

<u>To calculate the future value after x years, we need to use the following formula:</u>

FV= PV*(1 + i)^x

<u>Now, for 9 years:</u>

x= 9

FV= 7,000*(1.025^9)

FV=$8,742.04

8 0
2 years ago
Write an equation in slope-intercept form perpendicular to the given equation through the given point
Irina18 [472]

Answer:

y = (1/3)x - 4

Step-by-step explanation:

Any line perpendicular to the given equation y = -3x + 4 will have a slope which is the negative reciprocal of -3; that is, +1/3.

Start with the general slope-intercept form y = mx + b.

Insert the coordinates 6 and -2 into y = mx + b:  -2 = (1/3)(6) + b, or

-2 = 2 + b.  Thus, b = -4, and the desired equation is

y = (1/3)x - 4

6 0
3 years ago
ella bought some key chains. if she paid 24$ for the key chains and each one cost the same wbole-dollar amount, how many could s
Rainbow [258]
You could buy 6 keychains spending 4 dollars each. 6 * 4 = $24.
7 0
3 years ago
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