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3 years ago

How do u do equations

2 answers:

7 0

You need to use a equal sign with the variable and a normal number like 5x=10
Which 2 is x so 5x=10 is multiplication so
6-x=4 is subtracting hope that helps you understand more

guajiro [1.7K]3 years ago

3 0

Equations are solved by brains and your knowledge on math

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5 oranges weigh 1.5 kg, 8 apples weigh 2 kg. What would be the total weight of 3 apples and 4 oranges?

belka [17]

Answer: oranges 1.2 Kg and apples 0.75 Kg.

Step-by-step explanation:

Oranges (4)(1.5)/5

Apples (3)(2)/8

4 0

3 years ago

Use the unit circle to evaluate the followingHow do I solve this problem?

Ilya [14]

Notice that:

$\cos (\frac{4\pi}{3})=\cos (\pi+\frac{\pi}{3})\text{.}$

Recall that:

$\cos (\pi+x)=-\cos (x)\text{.}$

Therefore:

$\cos (\frac{4\pi}{3})=-\cos (\frac{\pi}{3})=-\frac{1}{2}\text{.}$

Answer:

$cos(\frac{4\pi}{3})=-\frac{1}{2}\text{.}$

6 0

1 year ago

I need to finish this by tmr morning or my parents is gettin called lol

Anit [1.1K]

18.84

Step-by-step explanation:

divide 12 by 2 which is 6 then times that by 3.14

8 0

3 years ago

How does the unit circle allow the trigonometric functions to be defined for all real numbers instead of just for acute angles?

Molodets [167]

Every point in the unit circle is identified either by its coordinates $(x,y)$ or by the angle it forms with the x-axis, $\alpha$ .

The trigonometric functions associate with every angle $\alpha$ and the correspondant $(x,y)$ coordinates the two values

$\cos(\alpha)=x,\quad\sin(\alpha)=y$

This procedure can be done for every angle $\alpha$ , so you don't have to work with acute angles only.

8 0

2 years ago

I need help with number 5 please.

amid [387]

The answer to number 5 is 1/4 of a foot. there are 12 inches in a foot. 12 divided by 4 is 3. So 12 inches divided by 4 sections is 3 inches in each section.

8 0

3 years ago