3 years ago

Help right here ;----

Mathematics

1 answer:

aleksklad [387]3 years ago

8 0

Answer:

(5x+2)+(7x+3) and 12x+5

Step-by-step explanation:

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What is the decimal value for 12/9<br><br><br><br> Hint: You have to add 1 and the decimal for 3/9

Sliva [168]

The decimal value for 12/9 is 1.34

8 0

4 years ago

the number of diagonals that can be drawn in a opolygon of n sides is 1/2n(n-1)-n. If 230 diagonsaals can be drawn how many side

Vitek1552 [10]

Answer:

n = 20

Step-by-step explanation:

The number of diagonal that can be drawn in a polygon of n sides is given by :

$D=\dfrac{n(n-3)}{2}$

If the number of diagonals are 230, then put D = 230 in above formula. So,

$230=\dfrac{n(n-3)}{2}\\\\460=n^2-3n\\\\n^2-3n-460=0$

It is a quadratic equation, the value of n is equal to 20.

It means that for 230 diagonal, there are 20 sides of the polygon.

7 0

4 years ago

Solve the following equation for z.

Oksi-84 [34.3K]

Answer: 6

Step-by-step explanation:

6 - 4 = 2

Im pretty sure the is the right answer! :)

6 0

3 years ago

Read 2 more answers

The length of the base of an isosceles triangle is 8 yards. The height of the triangle is 11 yards. Find the area of the triangl

lys-0071 [83]

The answer would be 44 because you can do 8*11=88 and then divid that be 2

3 0

3 years ago

Read 2 more answers

The length of a rectangle is 4 cm less than twice the width. Express as an integer the maximum width of the rectangle when the p

Paladinen [302]

Let, the width = x
length = 2x - 4

Perimeter = 2(l+w)
Substitute their values,
72 = 2(x+2x-4)
72 = 2(3x-4)
6x - 8 = 72
6x = 80
x = 80/6
x = 13.3

In short, Your Answer would be 13.33 cm

Hope this helps!

7 0

3 years ago