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Luba_88 [7]
3 years ago
9

-3x - 7 = -6x + 2 ......................

Mathematics
1 answer:
nordsb [41]3 years ago
3 0
<span>-3x - 7 = -6x + 2
      +7           +7
---------------------------------------------------------------------------------------------------------------------
-3x = -6x+9
+6x   +6x
</span>---------------------------------------------------------------------------------------------------------------------<span>
3x = 9
x = 3
</span>
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<img src="https://tex.z-dn.net/?f=%20%20%5Csqrt%7B2%20-%207x%7D%20%20%2B2x%20%3D%200" id="TexFormula1" title=" \sqrt{2 - 7x} +
FrozenT [24]

Answer:

√(2 - 7x) + 2x = 0

√(2 - 7x) = - 2x

[√(2 - 7x)]² = (- 2x)²

2 - 7x = 4x²

4x² + 7x - 2 = 0

4x² + 8x - x - 2 = 0

4x(x + 2) - (x + 2) = 0

(4x - 1)(x + 2) = 0

4x - 1 = 0 => 4x = 1 => x₁ = 1/4

x + 2 = 0 => x₂ = - 2

7 0
3 years ago
PLEASE HELP ASAP!! DUE TODAY
SpyIntel [72]

Answer:

Step-by-step explanation:

when  1/2 inch equals 4 feet the room is  2.25 inches, then

2 1/4 = 8/4 + 1/4  = 9/4

9/4 inches is the scale distance of the room

each 1/2 inch is 4 feet so divide  9/4 by 1/2 then multiply that by 4 to find the distance of the room

9/4 ÷ 1/2  = 9/4

9/4 * 2/1 = 18/4

18/4 = 9/2

9/2 * 4 feet = 9/2 * 4/1

9/2 * 4/1 = 36/2

36/2=18

the room is 18 feet across

then if the scale is 2/3 of an inch is  4 feet , then

2/3 * 9/4 = 18/12

18/12 = 3 inches  is the scale size of Quinto's room

8 0
3 years ago
Jhon went to the cinema to watch a film at quarter past 3. The film lasted for an hour, What time did he leave?
marysya [2.9K]
The answer is 4:15. (Also NEVER click on links with the bit . ly thing)
7 0
3 years ago
PLEASE HELP, SOLVE THIS PROBLEM AND GIVE ME THE ANSWER!!!
snow_lady [41]

Answer:

B. -5.

Step-by-step explanation:

fg(x) = (x - 1)(5x^2 + 19x - 3)

= 5x^3  + 14x^2  - 22x + 3

So fg(-4) = 5(-4)^3 + 14(-4)2 -22(-4) + 3

= -320 + 224 + 88 + 3

= -5.

7 0
3 years ago
Which graph shows the axis of symmetry for the function f(x) = (x - 2)2 + 1?
nadya68 [22]

Answer:

x=2

Step-by-step explanation:

axis of symmetry is

x-2=0

or

x=2

7 0
2 years ago
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