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3 years ago

Find Perimeter. Some one please explain these questions

Mathematics

1 answer:

rjkz [21]3 years ago

6 0

Answer:

a)26

b)?

c)40

Step-by-step explanation:

sorry about b I'm not sure about that one because the picture isn't clear

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In general, as sample size increases Group of answer choices the standard error increases in size the standard error decreases i

Vikki [24]

Answer:

98.9

Step-by-step explanation:

98.9

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3 years ago

Does the system have no solution?

kvv77 [185]

Answer:

$\mathrm{A)\:}-6$

Step-by-step explanation:

Notice that in the second equation, the coefficient of $y$ is $2$ times greater than in the first. Therefore, by making the coefficient of $x$ in the second equation $2$ times greater than in the first, it's impossible to only isolate one variable.

Therefore, when $a=-3\cdot 2=\fbox{-6}$ , there are no solutions to this system.

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3 years ago

2+2?<br> please answer i need to graduate from highschool

tensa zangetsu [6.8K]

Hope this helps Answer:

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2 years ago

Determine whether each mapping represents a function. Explain your reasoning.

FinnZ [79.3K]

Answer:

The first picture is a function and the second picture is not.

Step-by-step explanation:

Reason - In the first picture, there is no repeating value of x. In other words, every x value has a y value. However, in the second picture, the x value, 2 goes to 2 and -3.

4 0

3 years ago

May I please receive help?

romanna [79]

Answer:

$\frac{10}{9}\pi$ yards

Step-by-step explanation:

The circumference of this circle = 2πr

= 8π

We have to find the arc length of 50°, or 50/360 times the circumference of the circle(because there is 360° in a circle)

$\frac{50}{360} * 8\pi = \\\\\frac{400\pi}{360} =\\\\ \frac{10\pi}{9}$

-Chetan K

3 0

3 years ago