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2 years ago

Sutract 5a -3b +2b from a-4b -2c

Mathematics

2 answers:

Alborosie2 years ago

8 0

Step-by-step explanation:

-4a-5b-2c I think that is the best answer

seraphim [82]2 years ago

3 0

Step-by-step explanation:

sutract 5a -3b +2b from a-4b -2c

a-4b-2c-(5a-3b+2b)

a-4b-2c-5a+3b-2b

a-5a-4b+3b-2b-2c

-4a-4b+b-2c

-4a-3b-2c

-(4a+3b+2c)

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Please please help!!

shepuryov [24]

Answer:

$\large\boxed{x=0\ and\ x=\pi}$

Step-by-step explanation:

$\tan^2x\sec^2x+2\sec^2x-\tan^2x=2\\\\\text{Use}\ \tan x=\dfrac{\sin x}{\cos x},\ \sec x=\dfrac{1}{\cos x}:\\\\\left(\dfrac{\sin x}{\cos x}\right)^2\left(\dfrac{1}{\cos x}\right)^2+2\left(\dfrac{1}{\cos x}\right)^2-\left(\dfrac{\sin x}{\cos x}\right)^2=2\\\\\left(\dfrac{\sin^2x}{\cos^2x}\right)\left(\dfrac{1}{\cos^2x}\right)+\dfrac{2}{\cos^2x}-\dfrac{\sin^2x}{\cos^2x}=2$

$\dfrac{\sin^2x}{(\cos^2x)^2}+\dfrac{2-\sin^2x}{\cos^2x}=2\\\\\text{Use}\ \sin^2x+\cos^2x=1\to\sin^2x=1-\cos^2x\\\\\dfrac{1-\cos^2x}{(\cos^2x)^2}+\dfrac{2-(1-\cos^2x)}{\cos^2x}=2\\\\\dfrac{1-\cos^2x}{(\cos^2x)^2}+\dfrac{2-1+\cos^2x}{\cos^2x}=2\\\\\dfrac{1-\cos^2x}{(\cos^2x)^2}+\dfrac{1+\cos^2x}{\cos^2x}=2$

$\dfrac{1-\cos^2x}{(\cos^2x)^2}+\dfrac{(1+\cos^2x)(\cos^2x)}{(\cos^2x)^2}=2\qquad\text{Use the distributive property}\\\\\dfrac{1-\cos^2x+\cos^2x+\cos^4x}{\cos^4x}=2\\\\\dfrac{1+\cos^4x}{\cos^4x}=2\qquad\text{multiply both sides by}\ \cos^4x\neq0\\\\1+\cos^4x=2\cos^4x\qquad\text{subtract}\ \cos^4x\ \text{from both sides}\\\\1=\cos^4x\iff \cos x=\pm\sqrt1\to\cos x=\pm1\\\\ x=k\pi\ for\ k\in\mathbb{Z}\\\\\text{On the interval}\ 0\leq x$

4 0

3 years ago

A taco stand sells 296 tacos in four hours. At this rate, how many tacos would sell in 1/2 an hour?

Darina [25.2K]

Answer:

the taco stand would sell 37 tacos in 1/2 an hour.

6 0

3 years ago

Read 2 more answers

Y varies jointly as x, z, and w. when x=2, z=1, and w=12, then y=72. find y when x=1, z=2, and w=3

son4ous [18]

ANSWER: 18

EXPLANATION:

y=kxzw

where k is a constant
Making k the subject of the formula, we have

k=y/xzw

Inputting the values

k= 72/(2)(1)(12)

k=72/24

k = 3

Solving for y when x=1,z=2 and w=3

We have

y=kxzw

y = (3)(1)(2)(3)

y = 18

7 0

3 years ago

if you could JUST TELL ME HOW TO SOLVE IT that would be great. Or you could send a pic of your paper. thanks

fgiga [73]

Lets p = salesman's commission as percent
15,200 * p = 912
p = 912/ 15,200
p = 0.06
p = 6%

answer
6%

3 0

3 years ago

HELP ASAP WHICH FUNCTION BELOW HAS THE GREATER RATE OF CHANGE THX AND PLZ

Sophie [7]

Answer:

Step-by-step explanation:

B has a slope of 7 while A has a slope of 6.

slope of B 14-7/2-1 = 7

A slope is y= mx+b and m is the slope. so 6.

4 0

3 years ago

Sutract 5a -3b +2b from a-4b -2c​

Sutract 5a -3b +2b from a-4b -2c