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3 years ago

3(-2x-4y)-4(6y-x) simplify

Mathematics

2 answers:

postnew [5]3 years ago

8 0

Answer:

Simplify the expression.

12xy−72yexponent 2 -6x

Step-by-step explanation:

got it from mathaway

Gemiola [76]3 years ago

3 0

Step 1: distributive property
-6x-12y-24y+4x
Step 2: Combine like terms
-2x-36y

Answer: -2x-36y

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Can someone solve this?

ladessa [460]

First question:

Recall that $\cos^2x+\sin^2x=1$ and $\sqrt{x^2}=|x|$ for all $x$ . So

$\sqrt{1-\cos^2x}=\sqrt{\sin^2x}=|\sin x|$

$\sqrt{1-\sin^2x}=\sqrt{\cos^2x}=|\cos x|$

For $0$ , we expect both $\cos x>0$ and $\sin x>0$ (i.e. the sine and cosine of any angle that lies in the first quadrant must be positive). By definition of absolute value, $|x|=x$ if $x>0$ .

So we have

$\dfrac{\sqrt{1-\cos^2x}}{\sin x}+\dfrac{\sqrt{1-\sin^2x}}{\cos x}=\dfrac{\sin x}{\sin x}+\dfrac{\cos x}{\cos x}=1+1=\boxed{2}$

making H the answer.

Second question:

C is always true, because the inequality reduces to x > y.

6 0

3 years ago

A recipe calls for 2 1/5 cups of chopped tomatoes and 3 2/5 cups of diced turnips how many more cups of turnips did the recipe c

Zarrin [17]

The answer would be 1 1/5 more turnips.

6 0

3 years ago

Read 2 more answers

Evaluate 3x-4y when x=5 and y=-1

balandron [24]

Answer:

19 is the answer

Step-by-step explanation:

3x - 4y

= 3 × 5 - 4 × (-1)

= 15 + 4

= 19

hope this answer will help you

8 0

2 years ago

The correct answer please.

11Alexandr11 [23.1K]

Y+4= -4(x-3)
y+4=-4x+12
4x+y=8

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3 years ago

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Bernadette bought two peices of ribbon. One peice is 6 1/4 feet long, and the other is 11 1/2 feet long. Find the total length o

maw [93]

1/2 turns into 2/4 and 2/4 + 1/4 that equals 3/4 and then 11 plus 6 equals 17 3/4

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3 years ago

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