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Ivan
3 years ago
9

Kristy asks Lonnie to think of a number , Add 3 to it, multiply the sum by 2, and then subtract 6. Let n stand for lonnie's star

ting number. Which expression represents Lonnie's final number?
Mathematics
2 answers:
Zanzabum3 years ago
7 0

Answer:

2(n+3) - 6 = 2n

Step-by-step explanation:

Let n stand for lonnie's starting number.

Kristy asks to add 3 to the number. It will become (n+3)

Now he ask to multiply the sum by 2. It will become 2(n+3).

Finally, he ask to subtract 6. It will become 2(n+3) - 6

The expression is : 2(n+3) - 6.

We can simplify it as follows :

= 2n+6-6

= 2n

Hence, the required expression is 2n.

Maksim231197 [3]3 years ago
7 0

Answer:

no

Step-by-step explanation:

yyyy

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5
Vladimir79 [104]

Answer:

The equation best represents the line is:

  • y = 3x-1

Step-by-step explanation:

The slope-intercept form of the line equation

y = mx+b

where

  • m is the slope
  • b is the y-intercept

Taking the two points

  • (0, -1)
  • (1, 2)

Determining the slope between the points (0, -1) and (1, 2)

\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}

\left(x_1,\:y_1\right)=\left(0,\:-1\right),\:\left(x_2,\:y_2\right)=\left(1,\:2\right)

m=\frac{2-\left(-1\right)}{1-0}

Refine

m=3

We know that the value of the y-intercept can be determined by setting x = 0 and determining the corresponding value of y.

As we are given the point (0, -1)

It means at x = 0, y = -1

Thus, the y-intercept b = -1

now substituting b = -1 and m = 3 in the slope-intercept form

y = mx+b

y = 3x + (-1)

y = 3x-1

Therefore, the equation best represents the line is:

  • y = 3x-1
5 0
3 years ago
F (x) = 3x² - 4x<br><br> Find f (-1)
abruzzese [7]

Step-by-step explanation:

f(-1)=3×(-1)²-4×(-1)

=3×1-4×(-1)

=3+4

=7

hope it helps.

3 0
3 years ago
I got to get this right to higher my grade, plz and thank u
lidiya [134]

Answer: anyway i hope this will help

If two angles of a triangle have measures equal to the measures of two angles of another triangle, then the triangles are similar. Corresponding sides of similar polygons are in proportion, and corresponding angles of similar polygons have the same measure.

Step-by-step explanation:

Formal notation. The wavy line symbol means 'similar to'.

Rotation and reflection. Polygons can still be similar even if one of them is rotated, and/or mirror image of the other. In the figure below, all three polygons are similar.

8 0
3 years ago
Read 2 more answers
What is x+2318+18=190
astraxan [27]
Your answer is -2,146 because you have to try to get x by itself. So to do that you must subtract 2,318 and 18 from 190 to get your answer.
3 0
3 years ago
Help me ....urgant!!! solve this plz​
algol13
Answer is 5/6
I hope this is useful

8 0
4 years ago
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