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Lubov Fominskaja [6]
2 years ago
15

simplify the polynomial then finds its value for the given value of the variable 3x^3-x^3+5x^3-9x^3 if x=-1

Mathematics
1 answer:
melisa1 [442]2 years ago
5 0

Answer: 2

Step-by-step explanation:

3•(-1)^3 - (-1)^3 + 5•(-1)^3 - 9•(-1)^3

3•(-1) - (-1) + 5•(-1) - 9•(-1)

-3 +1 -5 +9= 2

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In order for Mark to get to work he needs to drive 10 miles south and 20 miles east. How many miles would he have to go if there
IrinaK [193]
To answer this i need a little more info but it's probably going to be 30 miles.
8 0
3 years ago
If UV = 8x, VW=x+1, and UW=10,what is VW?
jok3333 [9.3K]

Applying the segment addition theorem, the length of line segment VW is: 2 units.

<h3>What is the Segment Addition Theorem?</h3>

The segment addition theorem states that the sum of the lengths of two segments that make up a larger line segment equals the measure of the larger line segment, if the point on the line segments are collinear.

UV = 8x

VW = x+1

UW = 10

UV + VW = UW (segment addition theorem)

Substitute the values

8x + (x + 1) = 10

Open bracket

8x + x + 1 = 10

Combine like terms

9x + 1 = 10

Subtract 1 from both sides

9x + 1 - 1 = 10 - 1

9x = 9

Divide both sides by 9

9x/9 = 9/9

x = 1

VW = 8x + (x + 1)

Plug in the value of x

VW = x + 1

VW = 1 + 1

VW = 2 units.

Therefore, applying the segment addition theorem, the length of line segment VW is: 2 units.

Learn more about the segment addition theorem on:

brainly.com/question/1397818

#SPJ1

7 0
2 years ago
POSSIBLE POIL
kaheart [24]
The pythagorean theorem is more apt for the problem
8 0
3 years ago
Read 2 more answers
CAN SOMEONE PLEASE HELP ME! TODAY IS MY LAST DAY!! WILL MARK BRAINLIEST
finlep [7]

The given triangle is a right-angled triangle. This means that special trig identities can be applies

<u>These identities are as follows:</u>

sin (theta) = opposite / hypotenuse

cos (theta) = adjacent / hypotenuse

tan (theta) = opposite / adjacent

<u>Now, for the unknown theta in the triangle:</u>

The opposite side is 16 and the hypotenuse is 20

This means that we will use the <u>sin</u> not the cos as Bob did

<u>The solution will be as follows:</u>

sin (theta) = opposite / hypotenuse

sin (theta) = 16 / 20

theta = sin^-1(16/20)

theta = 53.13°

Hope this helps :)

7 0
3 years ago
PLS HELP **80 POINTS**
TEA [102]

\huge\pink{Answer}

radius = 12/2

r = 6ft

diameter is given

diameter = 12ft

formula for circumference = 2πr

formula for area = πr²

circumference = 264/7

= 37.714 ft

6 0
3 years ago
Read 2 more answers
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