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lyudmila [28]
2 years ago
7

7x - 3= -3 + 7x Can someone explain

Mathematics
2 answers:
labwork [276]2 years ago
8 0
Subtract 7x on both sides of the equal sign (it'll cancel out) then -3=-3 which makes a true statement.
Paladinen [302]2 years ago
5 0

Answer: Solve for x

Any value of x makes the equation true.

All real numbers

Interval Notation:

(−∞,∞)

Step-by-step explanation:

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The best fit line is given by the equation y = 0.404x - 5.18, where y represents the height of the plant above ground level, and
IRISSAK [1]

Step-by-step explanation:

<u>The line of best fit given:</u>

  • y = 0.404x - 5.18

<u>It is given in the slope-intercept form:</u>

  • y = mx + b, where m- slope, b - y-intercept

The slope is this situation is m = 0.404 cm and it represents the average growth rate of the plant in one day.

It seems reasonable but without means of control it is difficult to trace the growth while still under the ground, during the first 13-14 days.

4 0
2 years ago
Study the geometric sequence {-4, -84, -1764, -37044, ...}.
Nonamiya [84]

Answer:

              \bold{a_n=(-4)21^{n-1}}

Step-by-step explanation:

a_1=-4\,,\ a_2=-84\,,\ a_3=-1764\,,\ a_4=-37044\quad\implies\ \ r=21

{-84:(-4)=21 and -1764:(-84)=21 and -37044:(-1764)=21}

geometric sequence formula:   a_n=a_1r^{n-1}

a_1=-4\quad and \ \ r=21

a_n=(-4)21^{n-1}

3 0
3 years ago
Simplify the product -3x(x^2+3x-1)
stepladder [879]

Answer:

Hii, okay so the answer is, -3x^3-9x^2-1

Hope this helps!

Step-by-step explanation:

7 0
2 years ago
Please help with these 3 questions
Sever21 [200]

Answer: x = 11

Step-by-step explanation:

2x+5 = 3x-6

2x-3x = -6-5

-x = -11

x = 11

Double-check:
11*2= 22                   11*3=33

22+5 = 27                33-6= 27

4 0
2 years ago
Item 5<br> Write 77.5% as a fraction or mixed number in simplest form.
jeyben [28]

<span>77.5% can also be written as 77.5/100, but if you're the mathematical notation police, people don't like decimals on a fraction, sooo, an equivalent form is: </span>

<span>
 = (77.5)/(100) * (2/2)
= 155/200
= 31/40
= 0 31/40 </span>

5 0
2 years ago
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