2 years ago

Plsss help I’ll give u brainlest and 10 points number 13 pls

Mathematics

1 answer:

yuradex [85]2 years ago

8 0

Answer:

Step-by-step explanation:

I added 6.5 to the equation, found the mean, and it was 3.5.

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Add. −3 4/5+4 1/8 Enter your answer as a simplified fraction in the box.

GrogVix [38]

Answer:

13/40

Step-by-step explanation:

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2 years ago

A rectangular made of square tiles measures 8 tiles wide and 10 tiles long what is the length in tiles of a similar rectangle 12

Agata [3.3K]

There’s are ratio which would be 8/10. 12/x should equally 8/10. So it would be 14 tiles long.

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3 years ago

Find the distance from P to l.

ki77a [65]

$Equation\ of\ a\ line\ from\ 2\ points (x_1;\ y_1);\ (x_2;\ y_2):\\\\y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)\\\\(-4;\ 2)\ and\ (3;-5)\\subtitute:\\\\y-2=\dfrac{-5-2}{3-(-4)}\cdot(x-(-4))\\\\y-2=\dfrac{-7}{7}\cdot(x+4)\\\\y-2=-(x+4)\\\\y-2=-x-4\ \ \ |add\ x\ and\ 4\ to\ both\ sides\\\\x+y+2=0\\-------------------\\$

$Point-line\ distance\\l:Ax+By+C=0;\ (x_0;\ y_0)\\\\d=\dfrac{|Ax_0+By_0+C|}{\sqrt{A^2+B^2}}\\\\x+y+2=0\to A=1;\ B=1;\ C=2\\(1;\ 2)\to x_0=1;\ y_0=2\\subtitute\\\\d=\dfrac{|1\cdot1+1\cdot2+2|}{\sqrt{1^2+1^2}}=\dfrac{|1+2+2|}{\sqrt2}=\dfrac{|5|}{\sqrt2}=\dfrac{5}{\sqrt2}=\dfrac{5\cdot\sqrt2}{\sqrt2\cdot\sqrt2}\\\\=\boxed{\dfrac{5\sqrt2}{2}}$

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3 years ago

Simplify the expression r^-3 s^5 t^2/r^2 st^-2

Hoochie [10]

R/s^5t^r2st-2/r^3
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2 years ago

At the beach cleanup, Maya's group collected 14.8 pounds of trash on Saturday and 12.5 pounds on Sunday. Will's group collected

stellarik [79]

C) 15.5 pounds

Maya's group: 14.8 + 12.5 = 27.3

Will's group: 11.8 + ___ = 27.3
27.3 - 11.8 = 15.5

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2 years ago