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4 years ago

8

HELLLPPP QUICK I’ll give brainliest

2 answers:

dexar [7]4 years ago

5 0

The second I believe

Lyrx [107]4 years ago

4 0

I think it's the first one because when you multiply negative and positive it's negative and because I did it without the negative sign and I got one whole but it is 4 or higher so it's about -1 or lower than that

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If 1:w is equivalent to 1⅔: 5, find w.

sergij07 [2.7K]

Answer:

w = 3

Step-by-step explanation:

1/w = 1 2/3 / 5 cross multiply

1 2/3 (w) = 5

w = 5 / ( 1 2/3 ) = 5 / ( 5/3) = 15/5 = 3

5 0

2 years ago

A medium can of tomato juice costs $0.92 and contains 46 ounces of tomato juice. A large can of tomato juice costs $3.60 and con

vlada-n [284]

Answer:

The medium-sized can is the cheaper by the oz, and is $0.005 per oz. cheaper.

Step-by-step explanation:

Medium can: $0.92/(46 oz) = $0.020/oz

Large can: $3.60 / (144 oz) = $0.025/oz

Surprisingly, the medium can price per oz. is lower than that of the large can. The difference is $0.005 per oz.

6 0

4 years ago

7y-y=30 show work for it!

Anarel [89]

Answer:

y=5

Step-by-step explanation:

7y-y=6y

30/6 = 6y/6

5 = y

7 0

3 years ago

Calculate cos(480°) and sin(480°).

hram777 [196]

Answer:

$\cos(480^\circ)=-\dfrac{1}{2}$

$\sin(480^\circ)=\dfrac{\sqrt{3}}{2}$

Step-by-step explanation:

Calculate the value of trigonometry function.

$\cos(480^\circ)$ and $\sin(480^\circ)$

Split the angle between 0 to 90° using trigonometry formula.

$\Rightarrow \cos(360^\circ+120^\circ)$

$\Rightarrow \cos(120^\circ)$ $\because \cos(360+\theta)=\cos\theta$

$\Rightarrow \cos(180^\circ-60^\circ)$ $\because 120=180-60$

$\Rightarrow -\cos(60^\circ)$ $\because \cos(180-\theta)=-\cos\theta$

$\Rightarrow -\dfrac{1}{2}$

Therefore, cos(480°) = -0.5

$\Rightarrow \sin(360^\circ+120^\circ)$

$\Rightarrow \sin(120^\circ)$ $\because \sin(360+\theta)=\sin\theta$

$\Rightarrow \sin(180^\circ-60^\circ)$ $\because 120=180-60$

$\Rightarrow \sin(60^\circ)$ $\because \sin(180-\theta)=\sin\theta$

$\Rightarrow \dfrac{\sqrt{3}}{2}$

Therefore, sin(480°) = 0.866

7 0

4 years ago

How do you simplify <br> 2i<6u?

Stels [109]

2(i<3u) is the answer to your problem

4 0

4 years ago