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3 years ago

How do I solve a quadratic functiona

1 answer:

7 0

Quadratic Equation in Standard Form: ax2 + bx + c = 0.
Quadratic Equations can be factored.
Quadratic Formula: x = −b ± √(b2 − 4ac) 2a.
When the Discriminant (b2−4ac) is: positive, there are 2 real solutions. zero, there is one real solution. negative, there are 2 complex solutions.

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Simplify the expression 0.8y-1.5-0.2y+3.6

ladessa [460]

Answer:

0.6y+2.1

Step-by-step explanation:

In this question, it is required to simplify the given expression i.e. 0.8y-1.5-0.2y+3.6. It can be done by combining like terms together.

Here y is a variable. We can combine y terms together such that we get :

$=(0.8y-0.2y)-1.5+3.6\\\\=0.6y+2.1$

Hence, the simplified expression is 0.6y+2.1

6 0

3 years ago

Tavon has a gift card for $135 that loses $3 for every 30-day period it is not used. He has another gift card for $115 that lose

nlexa [21]

The value of the two gift cards would be the same at 40 30-days

The value of each card be when they have equal value is $15

What can be used to represent value of number of 30 days?

Let us assume that each 30-day period is x, based on the value of each gift is the initial value minus the number of 30-days multiplied by loss in value for every 30-day period

First gift card value=135-3x

Second gift card value=115-2.50x

At the same number of 30-days, their values are the same

135-3x=115-2.50x

135-115=-2.50x+3x

20=0.50x

x=20/0.50

x=40

Value of each gift card at 40 30-days=135-(3*40)

Value of each gift card at 40 30-days=135-120

Value of each gift card at 40 30-days=15

value of each gift card=115-2.50(40)

value of each gift card=115-100

value of each gift card=15

Find out about value of gift card on:brainly.com/question/18558187

#SPJ1

5 0

2 years ago

If x = 2, then which equation is true? A. 4x - 10 = 2 B. 5x - 14 = -4 C. 3x + 7 = 12 D. 10 - 3x = 16

Goshia [24]

Answer:

B. 5x - 14 = -4

Step-by-step explanation:

5(2) - 14 = -4

10 - 14 = -4

3 0

3 years ago

Identify whether the described situation is an example of experimental probability or theoretical probability.

Law Incorporation [45]

This is experimental probability, since it is based on the outcome of an experiment.

7 0

3 years ago

Rewrite the absolute value function as a piecewise function.<br> a<br> f(x) = -3x +11 – 2<br> -

levacccp [35]

Y=-3x+9 that is the answer

8 0

3 years ago