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4 years ago

Find the slope of the line

Mathematics

2 answers:

Daniel [21]4 years ago

6 0

Answer:

The slope of the line is -3/2 or -1.5

Step-by-step explanation:

y2-y1/x2-x1

-1-2/2-0=

-3/2 or -1.5

Gwar [14]4 years ago

4 0

Answer:

-3/2 or -1.5

Step-by-step explanation:

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Paulo's economics course requires two papers ? ?one long and one short ? ?throughout the semester. The number of pages, l l, in

mixer [17]

Answer:

27 pages.

Step-by-step explanation:

Let l be the number of pages in the long paper and s be the number of pages in the short paper.

We have been given that the total number of pages for both papers is 40. We can represent this information in an equation as:

$l+s=40...(1)$

We are also told that the number of pages in the long paper is one more than two times the number of pages in the short paper. We can represent this information in an equation as:

$l=2s+1...(2)$

We will use substitution method to solve system of linear equations.

From equation (1) we will get,

$s=40-l$

Upon substituting this value in equation (2) we will get,

$l=2(40-l)+1$

$l=80-2l+1$

Upon adding 2l to both sides of our equation we will get,

$l+2l=80-2l+2l+1$

$l+2l=80+1$

$3l=81$

Let us divide both sides of our equation by 3 we will get,

$\frac{3l}{3}=\frac{81}{3}$

$l=27$

Therefore, there must be 27 pages in the long paper.

8 0

3 years ago

The ratio of the interior angle measures of a triangle is 2:3:5. what are the angle measures?

In-s [12.5K]

The solution we will need to go is 2x + 3x + 5x = 180

10x = 180
x = 180/10
x = 18
2x = 36
3x = 54
5x = 90

(Just substitute that 18 on the x and it will give you the answer for the measurement of the angle measures.

5 0

3 years ago

Need help please guysssssss

SSSSS [86.1K]

Answer:

Step-by-step explanation:

3x+2-x>8

2x+2>8

2x>8-2

2x>6

x>3

5 0

3 years ago

Read 2 more answers

Help meeeeee pleaseeeeeee

marusya05 [52]

Roy is correct. When you multiply fractions, you multiply the numerator of one fraction and the other numerator of the other fraction, and vice versa for denominator.
7 x 3 = 21 (Numerators)
——- —-
3 x 8 = 32 (Denominators)

I hope this helped!

3 0

3 years ago

Suppose that a Petri dish initially contains 2000 bacteria cells. An antibiotic is introduced and after 4 hour, there are now 16

Sergeu [11.5K]

Answer:

a)The linear function for $P(t)$ is:

$P(t) = 2000 - 100*t$

b)The exponential function for $P(t)$ is:

$P(t) = 2000e^{-0.055t}$

Step-by-step explanation:

(a) Suppose that P(t) is a linear function. Find a formula for P(t):

$P(t)$ can be modeled by a linear function in the following format.

$P(t) = P_{0} - r*t$ , in which $P_{0}$ is the initial number of bacteria cells in the dish, t is the time and r is the rate that the number decreases.

Since the dish initially contains 2000 bacteria cells, $P_{0} = 2000$

We have

$P(t) = 2000 - r*t$

An antibiotic is introduced and after 4 hour, there are now 1600 bacteria cells present. So $P(4) = 1600$ . With this information, we can find the value of r.