All categories

3 years ago

What is the negative solution to the equation 0 - 5 x? 9 ON A) -9 B) 1 C) 9 D) -81

Mathematics

1 answer:

nadezda [96]3 years ago

5 0

Answer:Example 1.

2x2 - 5x - 12 = 0.

(2x + 3)(x - 4) = 0.

2x + 3 = 0 or x - 4 = 0.

x = -3/2, or x = 4.

Step-by-step explanation:

You might be interested in

My mother used 3/5 of a box of 35 eggs estimate how much sh used

Elina [12.6K]

35 eggs* (3/5)= 21 eggs

She used 21 eggs~

3 0

3 years ago

Read 2 more answers

Write the equation of the line passing through the points (-4,-1) and (2,8)

klio [65]

<h3>Explanation:</h3>

Calculate the slope with two given coordinate points by using rise over run.

$m = \frac{y_2 - y_1}{x_2 - x_1}$

Let these points

$\begin{cases}(x_1, y_1) = ( - 4, - 1) \\ (x_2, y_2) = ( 2, 8) \end{cases}$

$m = \frac{8 - ( - 1)}{2 - ( - 4)} \\ m = \frac{8 + 1}{2 + 4} \Longrightarrow \frac{9}{6} \Longrightarrow \frac{3}{2} \\ m = \frac{3}{2}$

Slope-Intercept

$y = mx + b \\ m = slope \\ b = y - intercept$

Substitute the value of m in the equation.

$y = \frac{3}{2} x + b$

Substitute any coordinate points that are given or part of the graph in the equation.

$(x_, y) = ( - 4, - 1)$

$- 1 = \frac{3}{2} ( - 4) + b$

Solve the equation for b-term.

$- 1 = \frac{3}{ \cancel{2}} ( \cancel{ - 4}) + b\\ - 1 = 3( - 2) + b \\ - 1 = - 6 + b \\ - 1 + 6 = b \\ 5 = b$

Rewrite the equation by substituting the value of b in the equation.

$y = \frac{3}{2} x + 5$

<h3>Answer</h3>

$\large \boxed{y = \frac{3}{2} x + 5}$

If you have any questions related to the answer, feel free to ask via comment.

7 0

3 years ago

Some students are going on a field trip. The cost of the trip is $100, in addition to $7per student. Write an equation that rela

grigory [225]

Answer: C= 100+7n

Step-by-step explanation:

5 0

2 years ago

You get tired of the sand and head up to the amusement park. You can purchase 20 ride tickets for $14 or you can purchase 30 rid

Helga [31]

Answer:

The one with the better deal would be 30 ride tickets for $22.50 this is because you pay less money for more rides.

Step-by-step explanation:

First you divide 20 by 14. Doing this will give you the cost of a ride per ticket.

20/14 = 1.42

Then you do the same thing to 30 and 22.50.

30/22.50 = 1.30

Last you compare which deal has less money per ride.

1.42 > 1.30

5 0

4 years ago

A square is cut into three equal rectangles. How does the area of the square compare to the sum of the areas of the three rectan

ludmilkaskok [199]

Answer:

Step-by-step explanation:

If the square was split into 3 rectangles the 3 rectangles sum up to the square.

4 0

3 years ago

What is the negative solution to the equation 0 - 5 x? 9 ON A) -9 B) 1 C) 9 D) -81​

What is the negative solution to the equation 0 - 5 x? 9 ON A) -9 B) 1 C) 9 D) -81