3 years ago

Complete the Steps to Solve for x. -0.57x+0.27x =8.1

Mathematics

2 answers:

IgorLugansk [536]3 years ago

6 0

Answer:

x=-27

Step-by-step explanation:

-0.57x+0.27x = 8.1

-0.3x = 8.1

x = -8.1/0.3

x = -27

Genrish500 [490]3 years ago

6 0

-0.30x = 8.1
X =27
Hope this will help

You might be interested in

A spring has a natural length of 25 meters. A force of 12 newtons is required to stretch the spring to a length of 30 meters. Ho

blagie [28]

F = ks
12 = k(15) 

12/15 = k 

integrating from 0 to 15 
12/15 sds 

12/15 x S squared / 2 from 0 to 15

3 0

4 years ago

<img src="https://tex.z-dn.net/?f=%20%7B%20%5Ccos%5E%7B4%7D%5Calpha%7D%20%5C%3A%20%2B%20%20%20%5Csin%5E%7B2%7D%20%5Calpha%20%5C%

timurjin [86]

Answer:

Proved

Step-by-step explanation:

$cos^4\alpha +sin^4\alpha =\frac{1}{4}(3+cos4\alpha )\\\\$

Take the Left Hand Side:

$cos^4\alpha +sin^4\alpha\\\\(cos^2\alpha )^2+(sin^2\alpha )^2\\\\(\frac{1+cos2\alpha }{2})^2+(\frac{1-cos2\alpha }{2})^2 \\\\\frac{1+2cos2\alpha +cos^22\alpha }{4}+\frac{1-2cos2\alpha +cos^22\alpha }{4} \\\\$

$\frac{1+2cos2\alpha +cos^22\alpha +1-2cos2\alpha +cos^22\alpha }{4} \\\\\frac{2+2cos^22\alpha }{4} \\\\\frac{1+cos^22\alpha }{2} \\\\\frac{1}{2}(1+cos^22\alpha )\\\\$

$\frac{1}{2}(1+\frac{1+cos4\alpha }{2})$

$\frac{1}{2}(\frac{2+1+cos4\alpha }{2})\\\\\frac{1}{4}(3+cos4\alpha )\\\\$

Hence Proved!

The following identities were used are attached in an image

3 0

3 years ago

Rules for subtracting integers with the same sign

klio [65]

Answer:

To subtract integers, change the sign on the integer that is to be subtracted. If both signs are positive, the answer will be positive. If both signs are negative, the answer will be negative.

4 0

4 years ago

Kevin makes an initial deposit into a saving account with an unnual interest rate. the amount of money in kevin's saving account

dalvyx [7]

It represents the annual interest rate.

5 0

3 years ago

-(5x + 6) - x = -6 - 6x

Dvinal [7]

Answer:

-5x-6-x=-6-6x

-6x-6=-6-6x

0=0

7 0

3 years ago