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3 years ago

What's N divided by 2

Mathematics

1 answer:

Lorico [155]3 years ago

3 0

Sorry, you must be missing an equation or something. If not then the answer is N/2.

Please leave a thanks.

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What is the area of a triangle with a base of 11 yards and a height of 13 yards?

laila [671]

Area of triangle = 1/2 x base x height

Given that base = 11 yards and height = 13 yards

Area of triangle = 1/2 x 11 x 13 = 71.5 yards²

Answer; 71.5 yd²

4 0

3 years ago

Does dose anyone know how to solve this?

solniwko [45]

Answer:

Width of rectangle = 6 m

Length of rectangle = 11 m

Step-by-step explanation:

Let width of rectangle = w

Length of rectangle = 3w-7

Area of rectangle = 66 m²

We need to find length and width of rectangle

The formula used is: $Area=Length \times Width$

Putting values and finding w

$Area=Length \times Width\\66=(3w-7)(w)\\66=3w^2-7w\\3w^2-7w-66=0\\$

Solve using quadratic formula: $w=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

We have a=3, b=-7, c=-66

Putting values and finding w

$w=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\w=\frac{-(-7)\pm\sqrt{(7)^2-4(3)(-66)}}{2(3)}\\w=\frac{7\pm\sqrt{49+792}}{6}\\w=\frac{7\pm\sqrt{841}}{6}\\w=\frac{7\pm29}{6}\\w=\frac{7+29}{6}\:,\:w=\frac{7-29}{6}\\w=6, w=-3.6$

We get values of w as w=6 and w=-3.6

As we know width cannot be negative, so considering w = 6

So, Width = 6

Length = 3w-7 = 3(6)-7 = 18-7 = 11

So, Width of rectangle = 6 m

Length of rectangle = 11 m

6 0

3 years ago

Solve for x. 4/x−3+2/x^2−9=1/x+3

Levart [38]

Answer:

$x=-\frac{17}{3}$

Step-by-step explanation:

we have

$\frac{4}{x-3}+\frac{2}{x^{2}-9}=\frac{1}{x+3}$

Solve for x

Applying difference of squares in the denominator of the second term in the left side

$\frac{4}{x-3}+\frac{2}{(x+3)(x-3)}=\frac{1}{x+3}$

Multiply both sides by (x+3)(x-3)

$4(x+3)+2=(x-3)$

Apply the distributive property in the left side

$4x+12+2=x-3$

Combine like terms left side

$4x+14=x-3$

Group terms

$4x-x=-3-14$

$3x=-17$

Divide by 3 both sides

$x=-\frac{17}{3}$

6 0

4 years ago

Jabari is thinking of three numbers. The

pentagon [3]

Answer:

3, 8 and 24.

Step-by-step explanation:

Let's write some equations that satisfy this problem (x = smallest, y = middle, z = largest):

z = 3y

x + y + z = 35

x = y - 5

We can use substitution to solve this problem! I will take x + y + z = 35, replace x with y - 5 (since we know x = y - 5) and replace z with 3y (since we know z = 3y).

This leaves us with:

(y - 5) + y + (3y) = 35

y - 5 + y + 3y = 35

5y - 5 = 35

5y = 40

y = 8

Since we know y (the middle number) is 8, we can now find the other numbers:

Largest is 3 times the middle, so 8 * 3 = 24.

Smallest is 5 less than the middle, so 8 - 5 = 3.

The 3 numbers are therefore 3, 8 and 24.

7 0

3 years ago

A runner finished his marathon in 180 minutes. A marathon is around 26 miles

Bezzdna [24]

7 minutes per mile so around 2.5 miles

7 0

3 years ago

Read 2 more answers