All categories

3 years ago

Math help please? <3

Mathematics

1 answer:

Reptile [31]3 years ago

4 0

Y - y1 = m(x - x1) is the point slope equation.
y - 9 = 3(x - -2)
(9, -2)
Letter B

You might be interested in

Calculate the volume of a rectangular prism with a length of 4.4 cm, a width of 3.1 cm, and a height of 6.3 cm. (As before, you

maria [59]

Answer:

85.932 cm³

Step-by-step explanation:

The volume of rectangular prism is obtained as the product of its length (l) by its width (w) and by its height (h):

$V=l*w*h$

The volume of a prism with a length of 4.4 cm, a width of 3.1 cm, and a height of 6.3 cm is:

$V=4.4*3.1*6.3\\V=85.932\ cm^3$

The volume of this prism is 85.932 cm³.

4 0

3 years ago

What is 3 divided by 1/3?

Vlada [557]

Answer:

It will be 9

hope this helps

4 0

3 years ago

Read 2 more answers

Find the equation of a line perpendicular to y - 12 = 2x – 8 that passes through the point (2, 3). (answer in slope-intercept fo

Alla [95]

Answer:

$\displaystyle y=-\frac{1}{2}x+4$

Step-by-step explanation:

Equation of a Line

We can find the equation of a line by using two sets of data. It can be a pair of ordered pairs, or the slope and a point, or the slope and the y-intercept, or many other combinations of appropriate data.

We are given a line

$y - 12 = 2x -8$

And are required to find a line perpendicular to that line. Let's find the slope of the given line. Solving for y

$y = 2x +4$

The coefficient of the x is the slope

$m=2$

The slope of the perpendicular line is the negative reciprocal of m, thus

$\displaystyle m'=-\frac{1}{2}$

We know the second line passes through (2,3). That is enough information to find the second equation:

$y-y_o=m'(x-x_o)$

$\displaystyle y-3=-\frac{1}{2}(x-2)$

Operating

$\displaystyle y=-\frac{1}{2}(x-2)+3$

Simplifying

$\displaystyle y=-\frac{1}{2}x+4$

That is the equation in slope-intercept form. Intercept: y=4

8 0

3 years ago

Determine the discriminant of x2 = 4. A. 17 B. 16 C. -15 D. -10

tino4ka555 [31]

The discriminant is b²-4ac
We can rewrite x² = 4 to x² + 0x - 4 = 0
So a = 1, b = 0, c = -4
Δ = 0 - 4 * 1 * -4
Δ = 16
The answer is B

6 0

3 years ago

Read 2 more answers

When looking at a decimal number (ex. 6.349821477...) what are some of the characteristics that will help you identify if the nu

quester [9]

Answer:

To determine whether a decimal is rational or not, you need to know that...

Irrational numbers don't end and have no pattern whereas rational numbers are the complete opposite. Rational numbers end and have a repeating pattern.

Step-by-step explanation:

Here are examples of irrational numbers:

0.9384903204..... , π , √2

Examples of rational numbers:

0.777777... (is rational because it has a repeating pattern of 7) , √49

Hope this helps :)

5 0

3 years ago