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3 years ago

Find all the possible values of b such that 3x^2 + bx -2 can be factored

Mathematics

1 answer:

aleksandr82 [10.1K]3 years ago

8 0

B can be 1, or b can be -5.

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Can somebody explain plsss

tatiyna

Answer:

slope = -2

Step-by-step explanation:

y2 - y1 over x2 - x1

so do

7-3/ 2-4 = your slope

4/-2

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2 years ago

The average rate of the first part of Yi’s walk on a park loop was 4 miles per hour. She then met up with a friend and the two w

PolarNik [594]

Answer: simultaneous equation and speed formula lead to:

X = 0.7 - (3 - 4x)/5

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3 years ago

Read 2 more answers

A volleyball reaches its maximum of 13 feet, 3 seconds after it is served. What quadratic formula could model the height of the

Katena32 [7]

Answer:

$H=-(t-3)^2+13$

Step-by-step explanation:

The path covered by the volleyball will be a downward parabola with the vertex being the highest point of the ball.

A general form of a downward parabola is given as:

$y=-a(x-h)^2+k$

Where $(h,k)$ is the vertex of the parabola and 'a' is a constant.

Now, let 'h' be the vertical height and 't' be the time taken.

So, the equation would be of the form:

$H=-a(t-h)^2+k$

Now, as per question:

h = 2 seconds, k = 13 feet.

$H=-a(t-3)^2+13$

Now, taking a = 1. So, the formula that can be used is:

$H=-(t-3)^2+13$

7 0

3 years ago

The population of a town can be modeled by P= 22,000 + 125t, where P represents the population and the t represents the number o

nlexa [21]

Given that the population can be modeled by P=22000+125t, to get the number of years after which the population will be 26000, we proceed as follows:
P=26000
substituting this in the model we get:
26000=22000+125t
solving for t we get:
t=4000/125
t=32
therefore t=32 years
This means it will take 32 years for the population to be 32 years. Thus the year in the year 2032

7 0

2 years ago

Can someone help? I don't understand the equasion

Alika [10]

Answer:

a = 1/6

Step-by-step explanation:

To solve, divide both sides by 5 1/4

a = 7/8 / (5 1/4)

a = (7/8) / (21/4)

a= 7/8 * 4/21

a= 28/168

a= 1/6

8 0

3 years ago