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3 years ago

Does someone know the answer

Mathematics

2 answers:

horrorfan [7]3 years ago

6 0

The answer is B. 340. If it helps, always seperate the shape into other rectangles and find the areas, and add them together at the end.

Naya [18.7K]3 years ago

4 0

The answer is 340 units

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PLEASE HELPPPPPPPPPP

Alexxx [7]

Answer:

Donna-71

Martina-62

Martina's sample

It has the smaller mean

Step-by-step explanation:

I apologize if this answer is incorrect but I think this is right.

6 0

3 years ago

Find the domain of the function y = 3 tan(23x)

solmaris [256]

Answer:

$\mathbb{R} \backslash \displaystyle \left\lbrace \left. \frac{1}{23}\, \left(k\, \pi + \frac{\pi}{2}\right) \; \right| k \in \mathbb{Z} \right\rbrace$ .

In other words, the $x$ in $f(x) = 3\, \tan(23\, x)$ could be any real number as long as $x \ne \displaystyle \frac{1}{23}\, \left(k\, \pi + \frac{\pi}{2}\right)$ for all integer $k$ (including negative integers.)

Step-by-step explanation:

The tangent function $y = \tan(x)$ has a real value for real inputs $x$ as long as the input $x \ne \displaystyle k\, \pi + \frac{\pi}{2}$ for all integer $k$ .

Hence, the domain of the original tangent function is $\mathbb{R} \backslash \displaystyle \left\lbrace \left. \left(k\, \pi + \frac{\pi}{2}\right) \; \right| k \in \mathbb{Z} \right\rbrace$ .

On the other hand, in the function $f(x) = 3\, \tan(23\, x)$ , the input to the tangent function is replaced with $(23\, x)$ .

The transformed tangent function $\tan(23\, x)$ would have a real value as long as its input $(23\, x)$ ensures that $23\, x\ne \displaystyle k\, \pi + \frac{\pi}{2}$ for all integer $k$ .

In other words, $\tan(23\, x)$ would have a real value as long as $x\ne \displaystyle \frac{1}{23} \, \left(k\, \pi + \frac{\pi}{2}\right)$ .

Accordingly, the domain of $f(x) = 3\, \tan(23\, x)$ would be $\mathbb{R} \backslash \displaystyle \left\lbrace \left. \frac{1}{23}\, \left(k\, \pi + \frac{\pi}{2}\right) \; \right| k \in \mathbb{Z} \right\rbrace$ .

4 0

2 years ago

Paul bought 9 total shirts for a total of $72. Tee shirts cost $10 and long sleeve shirts cost $7. How many of each type of shir

sasho [114]

He bought three $10 shirts and six $7 shirts.

4 0

3 years ago

Draw a number line model to determine -9 + (-2)

belka [17]

The answer would be -11

6 0

3 years ago

Read 2 more answers

Plzz help me to find coefficient in binomial theorem (25 points)

Viefleur [7K]

Denote x2 by y. 

 

(x2-3)7=(y-3)7 

 

This is a binomial expansion in y, and you want the coefficient of y4 because y4=x8 

 

You have 7 terms of (y-3) in (y-3)7. To get the fourth power of y, you need to choose y from four of the terms. The number of ways you can do this is the combinations of 7 things taken 4 at a time. This is:

 

7!/(4!3!)=35

So, the coefficient of x8 in the given expansion will be 210.

HOPE IT HELPS

THANK YOU 

5 0

3 years ago