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3 years ago

Can anyone pls help me in dis

Mathematics

1 answer:

barxatty [35]3 years ago

5 0

Answer:

The area of building c minus the area of building b equals the area of building a might be correct?

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If a is a real number, which property is shown by a = a?

Alja [10]

"Reflexive Property" is the property shown as a = a

Hope this helps!

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3 years ago

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3 points

Nuetrik [128]

substitution method

Step-by-step explanation:

use second equation
make x subject of the formula
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solve to find the value of y
substitute y value in any equation between the two.
then you get x value

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3 years ago

What is the width of a rectangle that has an area of 96 square inches and a length of 12 inches?

Yuki888 [10]

8 because 8x12 is 96.

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3 years ago

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Determina la suma de las siguientes progresiones los primeros 18 términos de la progresión aritmética: an = -{4, 12, 20, 28, 36,

Anuta_ua [19.1K]

Hello,
let
t=(-4)+(-12)+(-20)+(-28)+(-36)+....=-(4+12+20+28+36+...)=-s

$a_{1}=4=-4+1*8$
$a_{2}=12=-4+2*8$
$a_{3}=20=-4+3*8$
$a_{4}=28=-4+4*8$

...
$a_{18}=?=-4+18*8=140$

$a_{i}=-4+i*8$

$s=\sum_{i=1}^{18} (-4+i*8)=\sum_{i=1}^{18} (-4)+\ 8*\sum_{i=1}^{18}(i)\\\\=(-4)*18+8*(1+2+3+4...+18)\\\\=-72+\frac{(1+18)*18}{2}\\\\=-72+171=99$

$\boxed{\ t=-99}$

6 0

3 years ago

The question is in the picture

Veronika [31]

13 3/4 + x = 7 1/4

becomes x = 13 3/4 / 7 1/4

13 3/4 = 55/4

7 1/4 = 29/4

55/4 / 29/4 = 55/4 * 4/29 = 220/116

220/116 reduces to 1 26/29

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4 years ago