All categories

2 years ago

(2x+1)(x-1)=0 2x-10=5+3x

Mathematics

2 answers:

Sunny_sXe [5.5K]2 years ago

8 0

Answer:

x=-1/2

x=1

x=-15

Step-by-step explanation:

NemiM [27]2 years ago

3 0

Step-by-step explanation:

2x-3x=5+10

-x=15

X=-15

2x+1=0.... 1

X-1=0

X=1......2

Substitute the value of x in equation 1

2*1+1=0

2=1

So the value of x is 1 and 2

You might be interested in

Chris tells Adam that the decimal value of − 1 1/3 is not a repeating decimal. Is Chris correct?

Verdich [7]

Chris is wrong since $- \frac{11}{3} =-3.666666666666$

7 0

2 years ago

Read 2 more answers

johnny owes charlotte $225. He is paying her $25 per mo until he pays back all he owes. Write an equation for when y, the amount

Nikolay [14]

Ans: y = -25x+225 or f(x) = -25x+225

7 0

3 years ago

Help me please I will give 5 stars a thanks a crown and 10 points

Umnica [9.8K]

Thats hard bro hopefully somebody helps you figure it out

6 0

3 years ago

Read 2 more answers

A table contains the ordered pairs (3, 42.25) and (5, 50.75). If the relationship in the table is linear, explain how to find th

aniked [119]

Answer:

The initial value is 29.5

Step-by-step explanation:

we know that

The linear equation in slope intercept form is equal to

$y=mx+b$

where

m is the slope

b is the y-intercept ( also called initial value)

we have the points

(3,42.25) and (5,50.75)

Find the slope m

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

substitute the values

$m=\frac{50.75-42.25}{5-3}$

$m=\frac{8.5}{2}$

$m=4.25$

substitute in the equation

$y=4.25x+b$

<em>Find the value of b</em>

with the point (3,42.25) ( or the other given point)

substitute the value of x and the value of y in the equation and solve for b

$42.25=4.25(3)+b$

$42.25=12.75+b$

$b=42.25-12.75$

$b=29.5$

substitute

The linear equation is

$y=4.25x+29.5$

The initial value is the y-intercept (value of y when the value of x is equal to zero)

For x=0

$y=4.25(0)+29.5$

$y=29.5$

Therefore

The initial value is 29.5

5 0

3 years ago

Read 2 more answers

Will mark brainlist please help!!!!

MArishka [77]

Answer:

f(-3)= -8

f(2) = 4

Step-by-step explanation:

The first equation x ≤ 0 means that if the variable x, or in our case, -3, is less than or equal to 0, the answer will be calculated into the equation.

3(-3) + 1 = -8

The bottom equation x ≥ 2 means that if the variable, x, or in our case, 2 is more than or equal to 2, the answer is 4. Since 2 is equal to 2, the answer would then be 4.

3 0

3 years ago

(2x+1)(x-1)=0 2x-10=5+3x​

(2x+1)(x-1)=0 2x-10=5+3x