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3 years ago

Combine like terms: -4x - 10x

Mathematics

1 answer:

frez [133]3 years ago

5 0

Answer:

-2x

Step-by-step explanation:

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Simplify the polynomial. Then find its value for the given value of the variable.

vekshin1

Answer:

Step-by-step explanation:

Simplified expression:

$3x^3 -x^3 +5x^3-9x^3$

$2x^3 +5x^3-9x^3$

$7x^3 -9x^3$

$-2x^3$

If x = -1, the value of the expression is:

$-2x^3$

$-2(-1^3)$

$-2(-1)$

$2$

Hope this helps!

3 0

3 years ago

Help meeeee please. ‼️‼️‼️‼️

KatRina [158]

Step-by-step explanation:

look at the picture !

she has to paint actually 6 rectangles :

the 3 tops of the 3 stairs.

and the 3 vertical front boards (the front of each step of the stairs).

what is the area of these rectangles ? summing up all 6 - that is the surface area to be painted.

each top rectangle is clearly

82×19 (19 cm deep) = 1558 cm²

each front board is

82×12 (12 cm high) = 984 cm²

so, in total we have

3×1558 + 3×984 = 4674 + 2952 = 7626 cm²

as surface area to be painted.

8 0

2 years ago

One of the most popular indonesian traditional ensemble

Arte-miy333 [17]

Answer:

Gamelan

Step-by-step explanation:

a gamelan, is gamelan

8 0

3 years ago

What is 6/7 Answer quickly please!!

nevsk [136]

Answer: 0.8

Step-by-step explanation:

6 0

3 years ago

Which equation represents a line that has a slope of 3/4 and passes through the point (2,1)?

ValentinkaMS [17]

The general equation of a line is:
$\frac{y- y_{1}}{x- x_{1}} =m$
When m is the gradient and x1 and y1 are the coordinates of the points on the line
Therefore:
$\frac{y-1}{x-2}=3/4$
$4y-4=3x-6$
$4y=3x-2$

5 0

3 years ago