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tangare [24]
3 years ago
10

Evaulate the expression using the given values of the variable, 2 - 8x + 3x when x = 5

Mathematics
1 answer:
Katarina [22]3 years ago
5 0
Plug 5 into each x.
2-8•5+3•5 (multiply)
2-40+15 (subtract)
-38+15 (add)
= -23 (B)
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Plz help me with this <br> 1. 4 + 4y <br> 2. 4(y-1)<br> 3. 4y + 1<br> 4.1/2 (4-2x);2-2x
Lubov Fominskaja [6]
1:4+4y
2:4y-4
3:4y+1
4:2-x;2-2x
6 0
3 years ago
Find the sum (3.2+4x)+(18.25+6x)=
tatiyna

Answer:    -2.145

Step-by-step explanation:

(3.2+4x)+(18.25+6x)=

Simplifying

(3.2 + 4x) + (18.25 + 6x) = 0

Remove parenthesis around (3.2 + 4x)

3.2 + 4x + (18.25 + 6x) = 0

Remove parenthesis around (18.25 + 6x)

3.2 + 4x + 18.25 + 6x = 0

Reorder the terms:

3.2 + 18.25 + 4x + 6x = 0

Combine like terms: 3.2 + 18.25 = 21.45

21.45 + 4x + 6x = 0

Combine like terms: 4x + 6x = 10x

21.45 + 10x = 0

Solving

21.45 + 10x = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-21.45' to each side of the equation.

21.45 + -21.45 + 10x = 0 + -21.45

Combine like terms: 21.45 + -21.45 = 0

0 + 10x = 0 + -21.45

10x = 0 + -21.45

Combine like terms: 0 + -21.45 = -21.45

10x = -21.45

Divide each side by '10'.

x = -2.145

Simplifying

x = -2.145

8 0
4 years ago
Read 2 more answers
PLEASE HELP. !!!!!!!!!
garik1379 [7]
<h3>Answer:    (x+7)^2 + (y+2)^2 = 4</h3>

===========================================================

Explanation:

The center is at (h,k) = (-7,-2)

h = -7

k = -2

The radius is r = 2 units

Plug these three pieces of info into the template below and simplify

(x-h)^2 + (y-k)^2 = r^2

(x-(-7))^2 + (y-(-2))^2 = (2)^2

(x+7)^2 + (y+2)^2 = 4

You can use a tool like Desmos or GeoGebra to confirm the answer.

8 0
3 years ago
Write an equation of the line in slope-intercept form
Elena L [17]
Y=-5/2x-1

hope this helps
4 0
3 years ago
Can someone give me a simple answer for this
stiv31 [10]

Answer:

it is different because ax^2+bx+c with a ≠1 means that a is not equal to 1

and  x^2+bx+c is different because x^2 is  equal to 1x^2 but we dont usually write the 1 because it doesnt make any difference

Step-by-step explanation:

6 0
3 years ago
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