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3 years ago

The graph shows a proportional relationship between

Mathematics

2 answers:

Fiesta28 [93]3 years ago

5 0

I’m sorry I rlly need the points but that answer is right tho!

stiks02 [169]3 years ago

3 0

Step-by-step explanation:

Equation: y = 12x + 0

Explaination: A proportional relationship is one in which two quantities vary directly with each other. Another way to think about them is that, in a proportional relationship, one variable is always a constant value times the other.

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Sin^2(x/2)=sin^2x <br> Find the value of x

Veronika [31]

$\sin^2\dfrac x2=\sin^2x$
$\dfrac{1-\cos x}2=1-\cos^2x$
$1-\cos x=2-2\cos^2x$
$2\cos^2x-\cos x-1=0$
$(2\cos x+1)(\cos x-1)=0$
$\implies\begin{cases}2\cos x+1=0\\\cos x-1=0\end{cases}$ $\implies\begin{cases}\cos x=-\frac12\\\cos x=1\end{cases}$

The first case occurs in $0\le x$ for $x=\dfrac{2\pi}3$ and $x=\dfrac{4\pi}3$ . Extending the domain to account for all real $x$ , we have this happening for $x=\dfrac{2\pi}3+2n\pi$ and $\dfrac{4\pi}3+2n\pi$ , where $n\in\mathbb Z$ .

The second case occurs in $0\le x$ when $x=0$ , and extending to all reals we have $x=2n\pi$ for $n\in\mathbb Z$ , i.e. any even multiple of $\pi$ .

6 0

3 years ago

Explain how estimation helps you place the decimal point when multiplying 3.9 &5.3

kow [346]

3.9 and 5.3, when rounded off and mult. together, produce the product 20.
Thus, the decimal point must follow the first two digits of your answer, whether estimate or "exact."

3.9*5.3 = 20.67 by calculator.

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4 years ago

Rafael goes to a football game that starts at a quarter to 4. The game is 2 hours and 30 minutes long. What time does the game e

faltersainse [42]

First lets understand what a quarter to 4 is, a quarter to 4 is 15 minutes before the stated hour. This mean it is currently 3:45.

3:45 + 30 minutes = 4:15

4:15 + 2 hours = 6:15.

The game ends at 6:15

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3 years ago

PLZZZZ HELP <br> Which inequality does the number line represent?

seropon [69]

Answer: I had this question on test I put D

I haven’t gotten it graded

Step-by-step explanation:

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3 years ago

Alfonso buys 12 bagels and 8 muffins.he wants to split the items onto bags with the same number of bagels and the Same number of

Ivan

4 bags: 3 bagels and 2 muffins in each bag.

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4 years ago