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2 years ago

Write the equation of the line thay passes through the point (2,-1) and has a slope of -3

Mathematics

2 answers:

Genrish500 [490]2 years ago

8 0

Answer:

Step-by-step explanation:

use the point slope equation.

y-y1 = m(x-x1)

the point is (x1, y1) = (2, -1)

the slope is m = -3

y+1 = -3( x-2)

y = -3x +6-1

y = -3x +5

larisa [96]2 years ago

6 0

Answer:

Y = -3x -1

Step-by-step explanation:

Y = mx + b

Y is the y intercept (x,y) always graph on y axis

M is the slope

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Answer:

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Step-by-step explanation:

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2 years ago

There were 50 rabbits on an island. After three months the number of rabbits had increased to 70. If the number of rabbits incre

ddd [48]

Answer:

0.1187

Step-by-step explanation:

A = P (1 + k)^t

where A is the final amount,

P is the initial amount,

k is the monthly growth rate,

and t is the number of months.

70 = 50 (1 + k)^3

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3 years ago

The average test scores for a particular test in algebra was 84 with a standard deviation of 5. What percentage of the students

Delicious77 [7]

Answer:

The percentage of the students scored higher than 89% is 15.87%

Step-by-step explanation:

we are given

The average test scores for a particular test in algebra was 84

so, mean is 84

$\mu=84$

a standard deviation of 5

so,

$\sigma=5$

we have

x=89

now, we can use z-score formula

$z=\frac{x-\mu}{\sigma}$

now, we can plug values

$z=\frac{89-84}{5}$

$z=1$

now, we can use calculator

and we get

$p(z>1)=0.1587$

So,

The percentage of the students scored higher than 89% is 15.87%

8 0

3 years ago

2 poi

jolli1 [7]

Me ayudas por favor es regla de ruffini apretá mi perfil y ve mi pregunta

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3 years ago

ANSWER ASAP (WILL MARK BRAINLIEST)

Strike441 [17]

Answer:

Step-by-step explanation:

8 0

3 years ago

Write the equation of the line thay passes through the point (2,-1) and has a slope of -3​

Write the equation of the line thay passes through the point (2,-1) and has a slope of -3