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3 years ago

Answer my question and I’ll give you points, stars, and brainlest

Mathematics

1 answer:

Ludmilka [50]3 years ago

7 0

3) y = mx + b (m is the slope and b is the y-intercept)
so y = -2x + 3

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Just need help finding X and Y

Lapatulllka [165]

Answer:

Step-by-step explanation:

For x use the Pythagorean theorem:

$x^2+6^2=10^2$

$x^2+36=100$ subtract 36 from both sides

$x^2=64\to x=\sqrt{64}\\\\x=8$

We know: x + y = 20. Substitute:

$8+y=20$ subtract 8 from both sides

$y=12$

5 0

3 years ago

What is the solution set of the quadratic inequality 6x2+1<0

Free_Kalibri [48]

Answer:

Solution set of the quadratic equation is, Empty set

Step-by-step explanation:

Given the quadratic equation: $6x^2+1>0$

Subtraction property of equality states that you subtract the same number to both sides of an equation.

Subtract both sides by 1 we get;

$6x^2+1-1>0-1$

Simplify:

$6x^2>-1$

Division property of equality states that you divide the same number to both sides of an equation.

Divide both sides by 6 we get;

$\frac{6x^2}{6} >\frac{-1}{6}$

Simplify:

$x^2>\frac{-1}{6}$

For any x in real number there does not exist any number x which satisfy

$x^2>\frac{-1}{6}$ , therefore, there is no solution for this set of the quadratic inequality or in other word we can say that set of the solution is Empty set.

3 0

3 years ago

Read 2 more answers

michelle bought 4 gallons of grape juice and 5 gallons of apple juice for a party what is the ratio of gallon of apple juice to

just olya [345]

Answer:

5:4

Step-by-step explanation:

Have A Great day

4 0

2 years ago

25-14+3 my friends AND I DO NOT get it! Please help us! :)

irga5000 [103]

25-14=11
11+3=14

25+3=28
28 divided by 2=14

8 0

3 years ago

Read 2 more answers

Simplify the rational expression. state any restrictions on the variable. n^4-11n^2+30/n^4-7n^2+10

Andrej [43]

For this case we have the following expression:
 $\frac{n ^ 4-11n ^ 2 + 30}{ n ^ 4-7n ^ 2 + 10} 

$
 We are going to make the following change of variables:
 $x = n ^ 2
$
Rewriting the expression we have:
 $\frac{(x ^ 2-11x + 30)}{(x ^ 2-7x + 10)} 

$
Factoring the expression we have:
 $\frac{(x-5) (x-6)}{(x-5) (x-6)} 
$
Canceling similar terms we have:
 $\frac{x-6}{x-2} 
$
Returning the change we have:
 $\frac{n ^ 2-6}{n ^ 2-2} 

$
 The resctrictions of the function are those that make the denominator equal to zero.
We have then:
 $n ^ 2-2 = 0

n = +/- \sqrt{2} 
$
 Answer:
The simplified expression is:
 $\frac{n ^ 2-6}{n ^ 2-2}$
The restrictions are:
 $n = \sqrt{2} 
$
$n = - \sqrt{2}$

7 0

3 years ago