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2 years ago

Simplify the expression x - 2/3 - 1/2x .

Mathematics

1 answer:

Savatey [412]2 years ago

3 0

Answer:

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Step-by-step explanation:

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Watts 1+1 weeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Elza [17]

1+1=2

You should know this by now....

3 0

2 years ago

Read 2 more answers

- 3x + 5y = -2<br> 2x - 2y = 1<br> Solve by elem inaction

Lyrx [107]

Answer:

x=1/4 , y=-1/4. You can confirm this by substituting the numbers in.

Step-by-step explanation:

4 0

2 years ago

The dimensions of a square are altered so that one dimension is increased by 7 feet, while the other is decreased by 2 feet. The

dangina [55]

Answer:

64 ft^2

Step-by-step explanation:

(x+7)(x-2)=90

x^2-2x+7x-14=90

x^2+5x-104=0

factor

(x+13)(x-8)=0

x=-13

x=8 ft original square side

area=8x8=64

7 0

2 years ago

Read 2 more answers

Evaluate the expression -2cd if a = -8 b = 2 c = -5 d = 6

Elza [17]

Answer:

Step-by-step explanation:

Replace c and d with -5 and 6.

-2*-5*6

-2*-5=10

10*6=60

The expression is equal to 60.

-hope it helps

5 0

2 years ago

3.) Simplify the expression.

Bogdan [553]

Answer:

Option C) -cosu is correct

Therefore the simplified expression is $cos(u+\pi)=-cosu$

Step-by-step explanation:

Given expression is $cos(u+\pi)$

To find the value of the given expression :

By using the formula $cos(A+B)=cosAcosB-sinAsinB$

Substitute A=u and $B=\pi$ in the above formula we get

$cos(u+\pi)=cosucos\pi-sinusin\pi$

$=cosu(-1)-sinu(0)$ ( here $cos\pi=-1$ and $sin\pi=0$ )

$=-cosu-0$

$=-cosu$

$cos(u+\pi)=-cosu$

Therefore option C) -cosu is correct

Therefore the simplified expression is $cos(u+\pi)=-cosu$

6 0

3 years ago