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IrinaK [193]
2 years ago
15

Pls answer asap 7 - 3 r = r - 4 ( 2 + r)​

Mathematics
1 answer:
Marianna [84]2 years ago
8 0

Answer:

no real answer

Step-by-step explanation:

distribute the -4 and combine all of the like terms on the left side = r-8-4r, then -8-3r

then we have 7-3r=-8-3r

from here, we can already tell that there's no real answer. this is because the two -3r will cancel, leaving no variable.

since 7 doesn't equal -8, there is no answer.

if, for example, the value on both sides of the equal sign were the same after the variable was eliminated, then your answer would be all real numbers

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Natalka [10]
5.3/8=.6625 yrds^2 should be right
8 0
2 years ago
Solve this expression 5x^2-13x-6
torisob [31]

Answer:

x= -2/5 and x= 3

Step-by-step explanation:

Given equation is,

5x^2 -  13x -  6  = 0

Or, 5x^2 -  15x + 2x -  6  = 0 ( using middle term method)

Or, 5x( x- 3) + 2 (x-3) = 0

Or, (x-3) (5x+2) = 0

Now, x will have 2 answers because it's degree is 2. Total number of values depends on the power of variable.

So, x= 3 or, 5x = -2

             Or, x= -2/5

So, the answer is  x= -2/5 and x= 3.

6 0
3 years ago
PLEASE ANSWER ASAP!!!!!!!
maksim [4K]

A cheesecake has equally sized slices. Each slice is a different flavor. The cheesecake has 12 slices.

<h3>What is the area of the circle?</h3>

The area of the circle is defined as the product of the pie and the square of the radius.

The area of the circle = πr²

In order to calculate the total area of the cheesecake, since it's a circle its area is given by:

cheesecake area =  πr²

cheesecake area =  π(10/2)² =  π(5)²

cheesecake area = 25 π square inches

Therefore the number of slices is the ratio of the cheesecake total area by the area of each slice:

The number of slices = 25 π/(25 π/12)

The number of slices = 12

The cheesecake has 12 slices.

Learn more about circle;

brainly.com/question/12512221

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4 0
1 year ago
How do you solve:<br><br> f(x)=In(3x)?
LenKa [72]
Undefined is the answer because there is no value for x
7 0
2 years ago
The cost of hiring a plumber is shown by the equation � = 100� + 75, where n is the number of hours
harina [27]

Answer:

The minimum number of hours the plumer can work is 1 hour and 15 minutes and the maximum number of hours is 6.

Step-by-step explanation:

7 0
2 years ago
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