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3 years ago

Find the area and perimeter.

Mathematics

1 answer:

Marysya12 [62]3 years ago

4 0

Perimeter

use distance formula

which is square root of x^2-x^1 + y^2 +y^1
for each pair of coordinates

area
2 methods but i suggest that u do the shoelace method in anticlockwise so

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What is the 101st term for the sequence 13, 9, 5, 1... ?

NeX [460]

Step-by-step explanation:

a=13
d=13-9=4

${:}\longrightarrow$ $\sf S_n={\dfrac {n}{2}}\left [2a-(a-1)d\right]$

${:}\longrightarrow$ $\sf S_101={\dfrac {101}{2}}\left [26 (12)4\right]$

${:}\longrightarrow$ $\sf 50.5×1248$

${:}\longrightarrow$ $\sf S_101=63504$

${:}\longrightarrow$ $\sf a_n=a+(n-1)d$

${:}\longrightarrow$ $\sf a_101=13+(101-1)-4$

${:}\longrightarrow$ $\sf a_101=13+100(-4)$

${:}\longrightarrow$ $\sf 13-400$

${:}\longrightarrow$ $\sf a_101=-387$

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Answer:

1.) the student got 16 questions correct

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What is the domain of y = log Subscript 5 Baseline x?

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Answer:

For this case we have this function given:

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And we know that for this case the logarithm for 0 or neagtive numbers is not possible to calculate it, so then we can say that the domain for this case is:

$x> 0$

And we can write this in formal notation as:

$D = [ X \in R | X>0]$

And the best answer for this case would be:

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Step-by-step explanation:

For this case we have this function given:

$y = log_5 (x)$

In order to find the domain we need to find the possible values of x that the function can assume.

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$x> 0$

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$D = [ X \in R | X>0]$

And the best answer for this case would be:

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