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tino4ka555 [31]
4 years ago
6

Can someone solve this for me and please show your work 4x² If x = -2

Mathematics
2 answers:
aleksley [76]4 years ago
5 0
4(2)=8•8=64 good luck
ankoles [38]4 years ago
5 0

Answer:

16

Step-by-step explanation:

4x²  

we substitute x variable by -2 and then evaluate the numerical result:

4*(-2)^2

4* 4 = 16

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What is the least common multiple of 50, 60 and 72
Andre45 [30]
The least common multiple of each is 2. 2 x 25= 50. 2 x 30= 60 and 2 x 36=72
5 0
3 years ago
Write the polynomial which represents the perimeter of a triangle whose sides are represented
denis-greek [22]

Answer:

The polynomial is 10x^2 + 10x -2

Step-by-step explanation:

To get the polynomial which represents the perimeter, what we need to do is to add up all

these values. We use the formula for finding the perimeter of a triangle and that involves adding up all the three sides. That would be;

2x^2 + 3x + 5x^2 -1 + 3x^2 + 7x -1

10x^2 + 3x -1 + 7x -1

10x^2 + 10x -2

4 0
3 years ago
Please help and add explanation:)
Anni [7]

Answer:

NO

Step-by-step explanation:

The above image shows two triangles. if we look at the top triangle, we notice it's two sides are equal (16 and 16). We therefore have an isosceles right triangle.

looking the second triangle, we notice that one side is 39, the other 40. Since these are the two sides joined at the point of intersection for the two images, and since 39 does not equal 40, the second triangle cannot be an isosceles right triangle. We conclude that the two triangles are not similar.

8 0
3 years ago
A fence must be built to enclose a rectangular area of 20,000 ftsquared. fencing material costs $ 1 per foot for the two sides f
Simora [160]
The total cost of the least expensive fence would be $800.

To minimize perimeter and maximize area we take factors that are as close to equal as possible.  In this case, the closest whole number factors are 200 and 100.  Since the north and south faces cost less, we will make those 100 ft and make the more expensive east and west faces 200 ft.

100 ft × $2/ft = $200 per side × 2 sides = $400 for the north and south facing sides.

200 ft × $1/ft = $200 per side × 2 sides = $400 for the east and west facing sides

$400 + $400 = $800
6 0
3 years ago
Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the
Pani-rosa [81]

Answer:

10x + 5y = 11

Step-by-step explanation:

I usually find it in slope intercept then convert, it's easier for me.

First you find slope using delta y over delta x giving you -2/5.

so you have y=-2/5x + b

To find b plug in a point and solve down

1 = -2/5(3) +b

1+6/5 = b

b = 11/5

y=-2/5x + 11/5

Then you convert it to Ax+by=C form,

multiply by 5

5y = -10x + 11

move x

10x +5y = 11

4 0
3 years ago
Read 2 more answers
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