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3 years ago

NEEP HELP QUICKLY PLEASE

Mathematics

2 answers:

almond37 [142]3 years ago

7 0

Answer:

Axis of symmetery is x=-3

Step-by-step explanation:

sergeinik [125]3 years ago

4 0

Answer:

y=3

Step-by-step explanation:

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12 dogs decreased by 25%

il63 [147K]

The answer would be 8 dogs.

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3 years ago

CAN SOME ONE HELP ME ITS URGENT

aniked [119]

As we can observe from given information,

UT = ST

2x + 5 = x + 12

2x - x = 12 - 5

x = 7

now, let's solve for y

RU = RS

y - 4 = x + 5

y - 4 = 7 + 5

y = 12 + 4

y = 16

hope it helped...

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2 years ago

What is the value of<br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B100%20%5Ctimes%204%7D%20" id="TexFormula1" title=" \sqrt{

Pavel [41]

Answer: 20

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3 0

3 years ago

Read 2 more answers

For the function below, find a formula for the upper sum obtained by dividing the interval [a comma b ][a,b] into n equal subin

Vlad [161]

Answer:

See below

Step-by-step explanation:

We start by dividing the interval [0,4] into n sub-intervals of length 4/n

$[0,\displaystyle\frac{4}{n}],[\displaystyle\frac{4}{n},\displaystyle\frac{2*4}{n}],[\displaystyle\frac{2*4}{n},\displaystyle\frac{3*4}{n}],...,[\displaystyle\frac{(n-1)*4}{n},4]$

Since f is increasing in the interval [0,4], the upper sum is obtained by evaluating f at the right end of each sub-interval multiplied by 4/n.

Geometrically, these are the areas of the rectangles whose height is f evaluated at the right end of the interval and base 4/n (see picture)

$\displaystyle\frac{4}{n}f(\displaystyle\frac{1*4}{n})+\displaystyle\frac{4}{n}f(\displaystyle\frac{2*4}{n})+...+\displaystyle\frac{4}{n}f(\displaystyle\frac{n*4}{n})=\\\\=\displaystyle\frac{4}{n}((\displaystyle\frac{1*4}{n})^2+3+(\displaystyle\frac{2*4}{n})^2+3+...+(\displaystyle\frac{n*4}{n})^2+3)=\\\\\displaystyle\frac{4}{n}((1^2+2^2+...+n^2)\displaystyle\frac{4^2}{n^2}+3n)=\\\\\displaystyle\frac{4^3}{n^3}(1^2+2^2+...+n^2)+12$

but

$1^2+2^2+...+n^2=\displaystyle\frac{n(n+1)(2n+1)}{6}$

so the upper sum equals

$\displaystyle\frac{4^3}{n^3}(1^2+2^2+...+n^2)+12=\displaystyle\frac{4^3}{n^3}\displaystyle\frac{n(n+1)(2n+1)}{6}+12=\\\\\displaystyle\frac{4^3}{6}(2+\displaystyle\frac{3}{n}+\displaystyle\frac{1}{n^2})+12$

When $n\rightarrow \infty$ both $\displaystyle\frac{3}{n}$ and $\displaystyle\frac{1}{n^2}$ tend to zero and the upper sum tends to

$\displaystyle\frac{4^3}{3}+12=\displaystyle\frac{100}{3}$

8 0

3 years ago

Last question !!!!!!!!

a_sh-v [17]

Answer:

49 degrees.

Step-by-step explanation:

Since the line is 180 degrees, and both of the angles that are measured would equal 180, then all we need to do is take 180 - 131 to get 49 degrees. Hope this helped!

-Kirito

6 0

3 years ago