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NeX [460]
3 years ago
7

Simplify -(a+b)+a please

Mathematics
1 answer:
Nikitich [7]3 years ago
5 0

Answer:

-b

Step-by-step explanation:

-(a+b) = -a - b

-a -b + a = -b

( the -a + a cancel each other out )

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Solve for x and y in the diagram below:
Stells [14]

Answer:

x will equal 2.1

y will equal 4.5

6 0
3 years ago
Marisol is painting on a piece of canvas that has an area of 180 square inches.The length of the painting is 1 1/4 times the wid
Eduardwww [97]
To get the area, the formula is 2l x 2w = a

so the formula will be like this: 

(x)(x+x/4)=180
where,
x is the width
x+x/4 is the height 
180 is the area

(x)(x+x/4)=180
[4(x)][4(x+x/4)]=180(4)    multiply all sides by 4 to remove the fraction
(4x)(4x+x)=720
(4x)(5x)=720  simplify 
20x^2=720   multiply 4x and 5x
20x^2=720  get the sq root of both sides
4.47x=26.83 divide by 4.47 to get the value of x
x=6


the width is 6 sq inches
the length is 7.5 sq inches
[(2)(6)][(2)(7.5)]=180
(12)(15)=180
180=180



6 0
3 years ago
Read 2 more answers
HELP PLEASEEE :) TY TYYYYY
Dennis_Churaev [7]

Answer:

A = 8, B = 6, C = 4 , D = 7

Top = 29

Side = 20

Step-by-step explanation:

Last row : A + A + A + A = 32 ==> A = 8

First row : D + A + D + D = 3D + 8 = 29

                                          3D = 21 ==> D = 7

Second row : B + D + A + B = 27 ==> 2B + 7 + 8 = 27

                                                          2B = 12 ==> B = 6

Third column : D + A + C + A = 27

                      7 + 8 + C + 8  = 27 ==> C = 4

                               

7 0
3 years ago
Read 2 more answers
Zero property 2x^3+x^2-3x=0
zalisa [80]
The answer is
X= -3/2 or x=1
3 0
4 years ago
Read 2 more answers
dot is taller than dab but shorter than dee, and dave is taller than don prove: E is the last letter of the name of the tallest
LUCKY_DIMON [66]

Step-by-step explanation:

It starts off by saying Dot is taller than Dab.

Then it says he is shorter the dee.

Then it states that another name dave is taller then don.

We dont necessarily know if dee or dave is the tallest but both of there last names end with E so it proves the question at hand.

6 0
4 years ago
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