All categories

2 years ago

75y^3+100y^2-3y-4=0

Mathematics

1 answer:

sweet [91]2 years ago

7 0

Move all terms to the left side and set equal to zero. Then set each factor equal zero.
y = -4/3, 1/5, 1/5

You might be interested in

What matrix results from −8·A?

djverab [1.8K]

Is that all the question says can you give it into more details

So I can help you out

3 0

2 years ago

For online courses, like those in eCore, there is a positive correlation between the amount of time spent in the course and the

Troyanec [42]

Answer:

Regression Line is given by,

y = 22.909 + 0.209 x

The course grade of a student in the course who spent an average of 103 minutes in the course each week is: 22.909 + 0.209 × 103 = 44.436

Step-by-step explanation:

The equation of Regression equation is of the form of:

y = a + bx

where, a is intercept and b is slope

The formula for a and b is given by,

$a=\frac{\sum Y \sum X^2-\sum X \sum XY}{n\sum X^2-(\sum X)^2}\\ and, b = \frac{n\sum XY -\sum X \sum Y}{n\sum X^2-(\sum X)^2}$

Here, ∑X = 1149.8, ∑Y = 377.2, ∑XY = 93115.95, ∑X² = 320246.72

Thus, a = 22.909

and b = 0.209

Thus, Regression Line is given by,

y = 22.909 + 0.209 x

Thus, The course grade of a student in the course who spent an average of 103 minutes in the course each week is: 22.909 + 0.209 × 103 = 44.436

Now plotting these line:

6 0

2 years ago

1 3 Which is the best estimate of 11. 113 2 4? O 4 O 6 o 22 O 33

JulsSmile [24]

Answer:22

Step-by-step explanation:

3 0

2 years ago

7. Sarah draws a card from a standard deck, throws the card away, and then draws another card.

VashaNatasha [74]

Answer:

dependent

Step-by-step explanation:

7 0

2 years ago

Select the property of equality used to arrive at the conclusion.

Naya [18.7K]

Answer:

addition property of equality

Step-by-step explanation:

This is because the addition property of equality means

if $a=b$ then $a+c=b+c$

So if, $x=2$ then $x+8=2+8$

6 0

2 years ago