Solve using the quadratic formula show all work 2n2 - 7n - 3 = 0

Answers

Answer 1
Answer: Quadratic formula = ( -b +/- square root of b^2-4ac ) / 2a

In this case, a=2, b= -7 and c= -3

So:

(7 +/- square root of (-7)^2 - 4*2*(-3) ) / 2*2

= (7 +/- square root of 49 + 24 ) / 4

= 7 +/- square root of 73 / 4

Using a calculator, you end up with the answers: 3.886 and -0.386
Answer 2
Answer: the answer is -1 i think

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What is 10 - 3.587can Someone pls explain this to me and show me the work

Answers

Answer: 6.413

Step-by-step explanation:

What is 10 - 3.587?

This is subtraction of decimals. To subtract decimals, you can follow these steps:

• Write down the numbers given with the bigger number on top of the lower number.

• Add zeros after the decimals so the numbers will both have same length.

• Then subtract.

Therefore, 10 - 3.587 will be:

= 10.000 - 3.587

= 6.413

How to convert 25.12% into a fraction of 10,000

Answers

Answer:

25.12/100

Step-by-step explanation:

Percent means per hundred, so 25.12 percent means 25.12 per hundred. Thus, you can make 25.12 the numerator and 100 the denominator, and make 25.12 percent a fraction like this:

25.12/100

How do you solve x to the second power +7x=O

Answers

well the answer is 0 because if anything = 0 then it has to be multiplied by 0 so x = 0

x^2+7x=0
use the square root something....
(7/2)^2=49/4(add it to both sides)
x^2+7x+49/4=49/4
(x+7/2)^2=49/4
x+7/2=posinega 7/2
x=0 or x=-7

determine whether the given first-order differential equation is linear in the indicated dependent variable by matching it with the differential equation given in (7) in section 1.1, a1(x) dy dx a0(x)y

Answers

The given first-order differential equation is linear in the indicated dependent variable because it matches the standard form of a linear first-order differential equation, a1(x) dy/dx + a0(x)y = f(x).

First, let us review what a linear first-order differential equation is. Ais a differential equation that can be written in the form:

a1(x) dy/dx + a0(x)y = f(x)

Now, let us compare the given differential equation to the standard form of a linear first-order differential equation. The given differential equation is:

a1(x) dy/dx + a0(x)y

As we can see, the given differential equation matches the standard form of a linear first-order differential equation. Therefore, we can conclude that the given differential equation is linear in the indicated dependent variable.

In conclusion, the given first-order differential equation is linear in the indicated dependent variable because it matches the standard form of a linear first-order differential equation, a1(x) dy/dx + a0(x)y = f(x).

To know more about linear first-order differential equation, click the link below :

brainly.com/question/30645878#

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What single decimal multiplier would you use to increase by 4% followed by a 3% increase

Answers

Answer:

1.0712

Step-by-step explanation:

if you increase by 4%, it means you will have a new total of 104%. In decimals it is 1.04 (divide your percentage by 100) after that you do the same with the 3% increase. you'll have a new total of 103%. In decimals 1.03. If you want to know what single multiplier you can use, you need to multiply the both decimals. So you get 1.04 x 1.03 = 1.0712

hope this will help you, have a nice day!

Whats the answer pls ?

Answers

Answer:

y = -8

Step-by-step explanation:

Y2 - Y1/ X2 - X1

-8 - (-8) / -1 - (-8)

0 / 7

m = 0

y = mx + b

-8 = 0(-8) + b

-8 = 0 + b

-8 = b

y = -8