3 years ago

Please help. Is algebra.

Mathematics

1 answer:

mamaluj [8]3 years ago

5 0

Answer:

Q7: 6a³

Q8: -6n^4

Q9: -7a

Step-by-step explanation:

see attachment below

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Help me pls!!! <br> 3x-2(6-x)=7x+2(5+x)-6

Strike441 [17]

$3x-2(6-x)=7x+2(5+x)-6\\3x-12+2x=7x+10+2x-6\\5x-12=9x+4\\-4x = 16\\x = -4$

Hope that helps!

8 0

3 years ago

Read 2 more answers

Find an equation for the graph below

RoseWind [281]

Answer:

y=4/5x-0.8

Step-by-step explanation:

7 0

3 years ago

En una ciudad se registró una temperatura de 12°c bajo cero a las 3:00 am si a las 7:00am del mismo dia la temperatura era tres

hjlf

Answer:

24°c

Step-by-step explanation:

Cuando se dice que la temperatura esta "mayor" significaria que esta aumentando y entorno subiendo a ser mas caliente. Siendo este el caso, si la temperatura a las 3:00 estaba a 12c bajo cero entonces a las 7:00 estaria a 24c. Esto es por que un aumento de tres vecesseria un aumento de 36 grados (12*3). 12c grados bajo cero seria un numero negativo y si sumamos estos numeros nos daria 24c grados.

-12 + 36 = 24

7 0

3 years ago

What percent of 3 upon 5 is 1 upon 25?

vfiekz [6]

Answer:

3/5/100*1/25

=3/20*1/25

=3/500

3 0

3 years ago

The length of a rectangle is 10 inches longer than its width. If the area of the rectangle is 144 square inches, what are its di

vazorg [7]

Answer:

L= 18 in

W= 8 in

Step-by-step explanation:

Step one:

The length of a rectangle is 10 inches longer than its width

let the width be x

so the lenght is x+10

the area of the rectangle is 144 square inches

Step two:

$Area= L*W\\\\144=x(x+10)\\\\144=x^2+10x\\\\x^2+10x-144=0$

the factors for the quadratic expression is

18 and -8

$x^2+18x-8x-144=0\\\\x(x+18)-8(x+18)=0\\\\x-8=0\\\\x=8\\\\x+18=0\\\\x=-18$

the width is 8 in

the length is 8+10= 18 in

6 0

3 years ago