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3 years ago

A triangle has the length 11 and 4. What is the smallest possible whole number length for the third side?

Mathematics

1 answer:

kap26 [50]3 years ago

3 0

Answer:

We know that the sum of the first two sides is greater than the largest side.

7 + 11 > x

x is the third side.

18 > x

x < 18

The sides of the triangle are 7, 11, and 17.

The product = 7 × 17 = 119

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o-na [289]

Answer:

Step-by-step explanation:

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2 years ago

The length of a rectangle is the sum of the width and one. The area direct angle 72 units. What’s the length, in units, of the r

insens350 [35]

Answer:

The length of the rectangle is of 9 units.

Step-by-step explanation:

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

$ax^{2} + bx + c, a\neq0$ .

This polynomial has roots $x_{1}, x_{2}$ such that $ax^{2} + bx + c = a(x - x_{1})*(x - x_{2})$ , given by the following formulas:

$x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}$

$x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}$

$\bigtriangleup = b^{2} - 4ac$

Area of a rectangle:

A rectangle has width $w$ and length $l$ . The area is the multiplication of these measures, that is:

$A = wl$

The length of a rectangle is the sum of the width and one.

This means that $l = w+1$ , or $w = l - 1$

The area direct angle 72 units. What’s the length, in units, of the rectangle

We want to find the length. So

$wl = 72$

$(l-1)l = 72$

$l^2 - l - 72 = 0$

Quadratic equation with $a = 1, b = -1, c = -72$ . So

$\bigtriangleup = (-1)^{2} - 4(1)(-72) = 289$

$l_{1} = \frac{-(-1) + \sqrt{289}}{2*(1)} = 9$

$l_{2} = \frac{-(-1) - \sqrt{289}}{2*(1)} = -8$

Since the length is a positive measure, the length of the rectangle is of 9 units.

8 0

2 years ago

A rectangle measures 12 cm by 4 cm what is the area

Maslowich

In order to find the area you have to multiply length x width
In this case our length and width are 12cm and 4cm
So lets multiply those. :P
12 x 4 = 48 cm

Your area = 48cm²

Good Luck! :)

6 0

3 years ago

I need help with this,I will mark braily to the right answer!

pentagon [3]

Answer:

where the qutsion

Step-by-step explanation:

3 0

3 years ago

2x + 3x + 4 equals .

RUDIKE [14]

Add like terms
only add x's together
2x+3x=5x

we can't add x's and numbres so
answer is 5x+4

7 0

3 years ago